 |
||
| 2008 • 2007 • 2006 • 2005 • 2004 • 2003 • 2002 • 2001 • 2000 1999 • 1998 • 1997 • 1996 • 1995 • 1994 • 1993 • 1992 • 1991 • 1990 1989 • 1988 • 1987 • 1986 • 1985 • 1984 • 1983 • 1982 • 1981 • 1980 1979 • 1978 • 1977 • 1976 • 1975 • 1974 • 1973 • 1972 |
||
| Download Chatanika/Sondrestrom Publications List (June 2008 update) | ||
|
REVISED 16 JUNE 2008 2008 2007 Zhang S.-R., J.M. Holt, D. Bilitza, A.P. van Eyken, M. McCready, C. Amory-Mazaudier, S. Fukao, and M. Sulzer, "Multiple-site comparisons between models of incoherent scatter radar and IRI," Adv. Space Res., 39, 910–917, doi:10.1016/j.asr.2006.05.027, 2007.
Draper, N.C., M. Lester, S.W.H. Cowley, J.A. Wild, S.E. Milan, G. Provan, A. Grocott, A.N. Fazakerley, A. Lahiff, J.A. Davies, J.-M. Bosqued, J.P. Dewhurst, R. Nakamura, C.J. Owen, J. Watermann, M.G. Henderson, H.J. Singer and E. Donovan, "Cluster magnetotail observations of a tailward-traveling plasmoid at substorm expansion phase onset and field-aligned currents in the plasmasheet boundary layer," Annal. Geophys., V.23, 3667-3683, 2005. Foster, J.C., A.J. Coster, P.J. Erickson, J.M. Holt, F.D. Lind, W. Rideout, M. McCready, A. van Eyken, R.J. Barnes, R.A. Greenwald, F.J. Rich, “Multiradar observations of the polar tongue of ionization,” J. Geophys. Res., 110, A09S31, doi:10.1029/2004JA010928, 2005. Fromm, M., R. Bevilacqua, R. Servranckx, J. Rosen, J.P. Thayer, J. Herman, and D. Larko, “Pyro-cumulonimbus injection of smoke to the stratosphere: Observations and impact of a super blowup in northwestern Canada on 3–4 August 1998,” J. Geophys. Res., 110, D08205, doi:10.1029/2004JD005350, 2005. Fromm, M., R. Bevilacqua, R. Servranckx, J. Rosen, J.P. Thayer, J. Herman, and D. Larko, “Correction to ‘Pyro-cumulonimbus injection of smoke to the stratosphere: Observations and impact of a super blowup in northwestern Canada on 3–4 August 1998,’ ” J. Geophys. Res., 110, D12202, doi:10.1029/2005JD006171, 2005. Goncharenko, L., J.E. Salah, A. van Eyken, V. Howells, J.P. Thayer, V.I. Taran, B. Shpynev, Q. Zhou, J. Chau, “Observations of the April 2002 Geomagnetic Storm by the Global Network of Incoherent Scatter Radars,” Annal. Geophys., V. 23, 163–181, 2005. DOWNLOAD 2.4MB PDF Holmes, J.M, M. Conde, C. Deehr, and D. Lummerzheim, "Morphology of aurorae in 557.7-nm Doppler Temperatures," Geophys. Res. Lett., Vol. 32, L02103, doi:10.1029/2004GL021553, 2005. Huang, C.S., J.C. Foster, L.P. Goncharenko, P.J. Erickson, W. Rideout, and A.J. Coster, “Strong positive phase of ionospheric storms observed by the Millstone Hill incoherent scatter radar and global GPS network,” J. Geophys. Res., 110, A06303, doi:10.1029/2004JA010865. Kersley, L., S.E. Pryse, M.H. Denton, G. Bust, E. Fremouw, J. Secan, N. Jakowski, and G.J. Bailey, “Radio tomographic imaging of the northern high-latitude ionosphere on a wide geographic scale,” Radio Sci., 40, RS5003, doi:10.1029/2004RS003103, 2005. Middleton, H.R., S.E. Pryse, L. Kersley, G.S. Bust, E.J. Fremouw, J.A. Secan, and W.F. Denig, “Evidence for the tongue of ionization under northward interplanetary magnetic field conditions,” J. Geophys. Res., 110, A07301, doi:10.1029/2004JA010800, 2005. Oyama, S., B.J. Watkins, S. Maeda, and J. Watermann, “Application of a new beam configuration to estimate lower thermospheric vertical velocities at high latitudes with mono-static incoherent scatter radars,” Radio Sci., 40, RS4005, doi: 10.1029/2004RS003205, 2005. Oyama, S., B.J. Watkins, S. Nozawa, S. Maeda, and M. Conde, “Vertical ion motions observed with incoherent-scatter radars in the polar lower ionosphere,” J. Geophys. Res., 110, A04302, doi: 10.1029/2004JA010705, 2005. Palmroth, M., P. Janhunen, T.I. Pulkkinen, A. Aksnes, G. Lu, N. Ostgaard, J. Watermann, G.D. Reeves, and G.A. Germany, "Assesment of ionospheric Joule heating by GUMICS-4 MHD simulation, AMIE, and satellite-based statistics: Toward a synthesis," Annal. Geophys., V.23, 2051-2068, 2005. Semeter, J., C.J. Heinselman, G.G. Sivjee, H.U. Frey, and J.W. Bonnell, “Ionospheric response to wave-accelerated electrons at the poleward auroral boundary,” J. Geophys. Res., 110, A11310, doi:10.1029/2005JA011226, 2005. DOWNLOAD 2.4MB PDF Semeter, J. and F. Kamalabadi, “Determination of primary electron spectra from incoherent scatter radar measurements of the auroral E region,” Radio Science, Vol. 40, RS2006, doi: 10.1029/2004RS003042, 2005. DOWNLOAD 495K PDF Thayer, J.P. and Thomas, G.E., “Foreward: Special issue on phenomena of the summertime mesosphere,” J. Atmos. Solar-Terr. Phys., doi:10.1016/j.jastp.2005.08.001, 2005. Zhang, S.-R., J.M. Holt, A.P. vanEyken, M. McCready, C. Amory-Mazaudier, S. Fukao, and M. Sulzer, “Ionospheric local model and climatology from long-term databases of multiple incoherent scatter radars,” Geophys. Res. Lett., 32, L20102, doi:10.1029/2005GL023603, October 2005. DOWNLOAD 160K PDF BACK TO TOP 2004 Bust, G.S., T.W. Garner and T.L. Gaussiran II, “Ionospheric Data Assimilation Three Dimensional (IDA3D): A New Global, Multi-Sensor, Three Dimensional Electron Density Specification Algorithm,” J. Geophys. Res., Vol. 109, A11312, doi: 10.1029/2003JA010234, 2004. Coker, C., G. S. Bust, R. A. Doe, T. L. Gaussiran II, “High-latitude plasma structure and scintillation,” Radio Science, 39, RS1S15, doi:10.1029/2002RS002833, 2004. Gerrard, A.J., T. J. Kane , J. P. Thayer and S.D. Eckermann, “Concerning the upper stratospheric gravity wave and mesospheric cloud relationship over Sondrestrom, Greenland,” J. Atmos. Solar-Terr. Phys., Vol. 66, Issues 3-4, 229-240, February-March 2004. Gerrard, A.J., T.J. Kane, S.D. Eckermann, and J.P. Thayer, “Gravity waves and mesospheric clouds in the summer middle atmosphere: A comparison of lidar measurements and ray modeling of gravity waves over Sondrestrom, Greenland,” J. Geophys. Res., 109, D10103, doi:10.1029/2002JD002783, 2004. Keckhut, P., S. McDermid, D. Swart, T. McGee, S. Godin-Beekmann, A. Adriani, J. Barnes, J.-L. Baray , H. Bencherif , H. Claude, A.G. di Sarra , G. Fiocco, G. Hansen, A. Hauchecorne, T. Leblanc, C.H. Lee, S. Pal, G. Megie, H. Nakane, R. Neuber, W. Steinbrecht, and J. Thayer, “Review of ozone and temperature lidar validations performed within the framework of the Network for the Detection of Stratospheric Change,” J. Environ. Monit., 6 (9), 721–733, doi: 10.1039/b404256e, 2004. Khotyaintsev, Y., S. Buchert, K. Stasiewicz, A. Vaivads, S. Savin, V.O. Papitashvili, C.J. Farrugia, B. Popielawska, Y.-K. Tung, “Transient reconnection in the cusp during strongly negative IMF By,” J. Geophys. Res., 109, A04204, doi: 10.1029/2003JA009908, 2004. Moretto, T., D.G. Sibeck, and J. Watermann, "Occurence statistics of magnetic impulsive events," Annal. Geophys., V.22, 585–602, 2004. Oyama, S., C. Lathuillere, S. Maeda, B.J. Watkins, “Summer-winter dependences of day-night differences in the ion temperature in the polar upper F region,” Geophys. Res. Lett., 31, L05806, doi:10.1029/2003GL018820, 2004. Pallamraju, D., S. Chakrabarti, R. Doe, and T. Pedersen, “First ground-based OI 630 nm optical measurements of daytime cusplike and F-region auroral precipitation,” Geophys. Res. Lett.10.1029/2003GL019173, 2004. Thayer, J. P. and J. Semeter, “The convergence of magnetospheric energy flux in the polar atmosphere,” J. Atmos. Solar-Terr. Phys., Vol. 66, 10, pp. 805-822, doi:10.1016/j.jastp.2004.01.035, 2004. DOWNLOAD 590K PDF Watermann, J., H. Lühr, K. Schlegel, P. Stauning, J.P. Thayer, F. Christiansen, and P.T. Newell, “The low-altitude cusp: Multi-point observations during the February 2002 SIRCUS campaign,” in: Earth Observation with CHAMP, Results from Three Years in Orbit, C. Reigber, H. Luehr, P. Schwintzer, J. Wickert, Eds., p. 375–380, Springer-Verlag, Berlin Heidelberg New York, 2004. Zhang, S.P., J.P. Thayer, R.G. Roble, J.E. Salah, G.G. Sheperd, L.P. Goncharenko, and Q.H. Zhou, “Latitudinal variations of neutral wind structures in the E-region for the March equinox period,” J. Atmos. Solar-Terr. Phys., Vol. 66, Issue 1, 105–117, January 2004. BACK TO TOP 2003 Chrissan, D.A., and A.C. Fraser-Smith, “A Clustering Poisson model for characterizing the interarrival times of sferics,” Radio Sci., 38(4), 1078, doi:10.1029/2002RS002693, 2003. Gerding M., G. Baumgarten, U. Blum, J.P. Thayer, K. H. Fricke, R. Neuber, J. Fiedler, “Observations of an unusual mid-stratospheric aerosol layer in the Arctic: possible sources and implications for polar vortex dynamics,” Annales Geophysicae, Vol. 21, Issue 4, pp. 1057–1069, 2003. Huang, C., J.C. Foster, G.D. Reeves, J. Watermann, J.H. Sastri, K. Yumoto, and P. Song, "Global magnetospheric-ionospheric oscillations initiated by a solar wind pressure impulse," J. Geophys. Res., 108(A6), 1232, doi:10.1029/2002JA009465, 2003. Liu, A.Z. and G.R. Swenson, “A modeling study of O2 and OH airglow perturbations induced by atmospheric gravity waves,” J. Geophs. Res., 108(D4): 11–1—11–9, 2003. Kelley, M.C., J.J. Makela, J.L. Chau, and M.J. Nicolls, "Penetration of the solar wind electric field into the magnetosphere/ionosphere system," Geophys. Res. Lett., Vol. 30, doi: 10.1029/2002GL016321, 2003. Martines-Bedenko, V.A., V.A. Pilipenko, V.O. Papitashvili, M.J. Engebretson, J. Watermann, and P.T. Newell, “Correspondence between ULF activity, field-aligned currents, and dayside magnetospheric regions,” Int. J. Geomagn. Aeron., Vol. 4, No. 2, pp. 141–151, 2003. Semeter, J., C.J. Heinselman, J.P. Thayer, R.A. Doe, and H.U. Frey, “Ion upflow enhanced by drifting F-region plasma structure on the nightside polar cap boundary,” Geophys. Res. Lett., Vol. 30, No. 22, 2139, doi: 10.1029/2003GL017747, 2003. DOWNLOAD 350K PDF Semeter, J., “Critical comparison of OII (732-733nm), OI (630nm), and N2 (1PG) emissions in auroral rays,” Geophys. Res. Lett., Vol. 30, No. 5, 1225, doi: 10.1029/2002GL015828, 2003. DOWNLOAD 350K PDF Tang, J., F. Kamalabadi, L.G. Rumsey, and G.R. Swenson, “Point-source suppression for atmospheric wave extraction from airglow imaging measurements,” IEEE Trans. on Geoscience & Remote Sensing 41(1): 146–152, 2003. Thayer, J. P., G. E. Thomas, F.-J. Lübken, “Foreword: Layered phenomena in the mesopause region,” J. Geophys. Res., 108(D8), 8434, doi: 10.1029/2002JD003295, 2003. Thayer, J. P., M. Rapp, A. J. Gerrard, E. Gudmundsson, T. J. Kane, “Gravity Wave Influences on Arctic Mesospheric Clouds as determined by a Rayleigh Lidar at Sondrestrom, Greenland,” J. Geophys. Res., 108(D8), 8449, doi: 10.1029/2002JD002363, 2003. Toivanen, P.K., D.N. Baker, W.K. Peterson, H.J. Singer, J. Watermann, J.R. Wygant, C.T. Russell, and C.A. Kletzing, "Polar observations of transverse magnetic pulsations initiated at substorm onset in the high-latitude plasma sheet," J. Geophys. Res., 108(A7), 1267, doi:10.1029/2001JA009141, 2003. Watermann, J., F. Christiansen, V. Popov, P. Stauning, and O. Rasmussen, “Field-aligned currents inferred from low-altitude earth-orbiting satellites and ionospheric currents inferred from ground-based magnetometers–do they render consistent results?,” First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies, C. Reigber, H. Luehr, P. Schwintzer, Eds., Springer-Verlag, Berlin/Heidelberg, 2003. Weimer, D.R., D.M. Ober, N.C., Maynard, M.R. Collier, D.J., McComas, N.F. Ness, C.W. Smith, and J. Watermann, “Predicting IMF propagation delay times using the minimum variance technique,” J. Geophys. Res., 108(A1), 1026, 10.1029/2002JA009405, 2003. Zhang, S.P., J.E. Salah, N. Mitchell, W. Singer, Y. Murayama, R.R. Clark, A. van Eyken, and J.P. Thayer, “Responses of the mesospheric wind at high latitudes to the April 2002 space storm,” Geophys. Res. Lett. 30, 23, 2225, doi:10.1029/2003GL018521, 2003. BACK TO TOP 2002 Amm, O., M.J. Engebretson, T. Hughes, L. Newitt, A. Viljanen, and J. Watermann, “A travelling convection vortex event study: Instantaneous ionospheric equivalent currents, estimation of field-aligned currents, and the role of induced currents,” J. Geophys. Res., Vol. 107(A11), 10.1029/2002JA009472, 2002. Clauer, C.R., and V.G. Petrov, “A statistical investigation of traveling convection vortices observed by the west coast Greenland magnetometer chain,” J. Geophys. Res., 107(A7), 10.1029/2001JA000228, 2002. Gerrard, A.J., T.J. Kane, J. P. Thayer, T.J. Duck, J. Whiteway, “Synoptic-scale study of the arctic polar vortex’s influence on the middle atmosphere,” J. Geophys. Res., 107 (D16), doi 10.1029/2001JD000681, pp. ACL1, 1-15, 2002. Gerrard, A.J., J.P. Thayer, and T.J. Kane, “Mesospheric clouds and the duality of gravity waves,” Eos Transactions of the American Geophysical Union, 83(43), 488, 2002. Grocott, A., S.W.H. Cowley, J.B. Sigwath, J.F. Watermann, and T.K. Yeoman, “Excitation of twin-vortex flow in the nightside high-latitude ionosphere during an isolated substorm,” Ann. Geophys., Vol. 20, p. 1577–1601, 2002. Kataoka, R., H. Fukunishi, L.J. Lanzerotti, T.J. Rosenberg, A.T. Weatherwax, M.J. Engebretson, and J. Watermann, “Traveling convection vortices induced by solar wind tangential discontinuities,” J.Geophys. Res., 107(A12), 10.1029/2002JA009459, 2002. Korotova, G.I., D.G. Sibeck, H.J. Singer, and T.J. Rosenberg, "Tracking transient events through geosynchronous orbit and in the high-latitude ionosphere," J. Geophys. Res., 107(A11), 1345, doi:10.1029/2002JA009477, 2002. LaBelle, J. and R.A. Treumann, “Auroral radio emissions, 1. Hisses, roars and bursts,” Space Sci. Rev., 101, 295, 2002. Lu, G., T.E. Holzer, D. Lummerzheim, J.M. Ruohoniemi, P. Stauning, O. Troshichev, P.T. Newell, M. Brittnacher, and G. Parks, "Ionospheric response to the interplanetary magnetic field southward turning: Fast onset and slow reconfiguration," J. Geophys. Res., 107(A8), 1153, doi:10.1029/2001JA000324, 2002. Lyons, L.R., E. Zesta, Y. Xu, E.R. Sánchez, J.C. Samson, G.D. Reeves, J.M. Ruohoniemi, and J.B. Sigwath, “Auroral poleward boundary intensifications and tail bursty flows: A manifestation of a large-scale ULF oscillation,” J. Geophys. Res., Vol. 107, No. A11, 1352, doi: 10.1029/2001JA000242, 2002. Moretto, T., M. Hesse, A. Yahnin, A. Ieda, D. Murr, and J.F. Watermann, “Magnetospheric signature of an ionospheric Travelling Convection Vortex event,” J. Geophys. Res., 107, A6, 1029, 2002. Murr, D.L., W.J. Hughes, A.S. Rodger, E. Zesta, H.U. Frey, and A.T. Weatherwax, "Conjugate observations of traveling convection vortices: The field-aligned current system," J. Geophys. Res., 107(A10), 1306, doi:10.1029/2002JA009456, 2002. Nishitani, J., T. Ogawa, N. Sato, H. Yamagishi, M. Pinnock, J.-P. Villain, G. Sofko, and O. Trochichev, “A study of the dusk convection cell’s response to an IMF southward turning,” J. Geophys. Res., 107(A3), 10.1029/2001JA900095, 2002. Semeter, J., and R. Doe, “On the proper interpretation of ionospheric conductance estimated through satellite photometry,” J. Geophys. Res. 107 (A8), 10.1029/2001JA9101, 2002. DOWNLOAD 735K PDF Takeuchi, T., T. Araki, A. Viljanen, and J. Watermann, “Geomagnetic negative sudden impulses: Interplanetary causes and polarization distribution,” J. Geophys Res., Vol. 107(A7), 10.1029/2001JA000152, 2002. Vennerstrøm, S., T. Moretto, N. Olsen, E. Friis-Christensen, A.M. Stampe, and J. Watermann, “Field-aligned currents in the dayside cusp and polar cap region during northward IMF,” J. Geophys. Res., Vol. 107(A8), 10.1029/2001JA009162, 2002. Watermann, J., P. Stauning, O. Rasmussen, V.O. Papitashvili, V.A. Popov, and J.P. Thayer, “Observation of field-aligned and ionospheric currents during space weather month, September 1999,” Adv. Space Res., Vol. 30, No. 10, pp. 2203-2208, 2002. Watermann, J., G.S. Bust, J.P. Thayer, T. Neubert, and C. Coker, “Mapping plasma structures in the high-latitude ionosphere using beacon satellite, incoherent scatter radar and ground-based magnetometer observations,” Ann. Geophys., 45, 1, 117-189, 2002. Zhou, X.-Y., B.T. Tsurutani, H.U. Frey, J.F. Watermann, D.G. Sibeck, S.B. Mende, and J.K. Arballo, “Dawn/Dusk Auroras and Geomagnetic Fluctuations: Ionospheric Effects of Intense Solar Wind Ram Pressure,” in Earth’s Low-Latitude Boundary Layer, Geophysical Monograph Series, Volume 133, 361-370, 2002. BACK TO TOP 2001 Bedey, D.F., and B.J. Watkins, “Simultaneous observations of thin ion layers and the inospheric electric field over Sondrestrom,” J. Geophys. Res., 106, A5, P. 8169, 2001. Blanchard, G.T., C.L. Ellington, L.R. Lyons, and F.J. Rich, "Incoherent scatter radar identification of the dayside magnetic separatrix and measurement of magnetic reconnection," J. Geophys. Res., 106(A5), 8185–8196, 2001. Doe, R.A., J.D. Kelly, and E.R Sanchez, “Observations of persistent dayside F-region electron temperature enhancements associated with soft magnetosheathlike precipitation,” J. Geophys. Res., 106, 3615, 2001. Gerrard, A.J., T.J. Kane, J.P. Thayer, C.S. Ruf, and R.L. Collins, “Consideration of non-Poisson distributions for Lidar applications,” Applied Optics, Vol. 40, No. 9, pp.1488-1492, 2001. Huang, C.-S., G.J. Sofko, A.V. Kustov, J.W. MacDougall, R.A. Greenwald, J.M. Ruohoniemi, J.C. Foster, J.P. Villain, M. Lester, J. Watermann, V.O. Papitashvili, and W.J. Hughes, “Long-period magnetospheric-ionospheric perturbations during northward interplanetary magnetic field,” J. Geophys. Res., Vol. 106, pp. 13,091-13,104, 2001. Hughes, J.M., and J. LaBelle, “First observations of flickering auroral roar,” Geophys. Res. Lett., 28, 123, 2001. Hughes, J.M., J. LaBelle, and J. Watermann, “Statistical and case studies of 2fce auroral roar observed with a medium-frequency interferometer,” J. Geophys. Res., 106, 21147, 2001. Hughes, J.M., and J. LaBelle, “Plasma conditions in auroral roar source regions inferred from radio and radar observations,” J. Geophys. Res., 106, 21157, 2001. Kataoka, R., H. Fukunishi, L.J. Lanzerotti, C.G. Maclennan, H.U. Frey, S.B., Mende, J.H. Doolittle, T.J. Rosenberg, and A.T. Weatherwax, “Magnetic impulse event: A detailed case study of extended ground and space observations,” J.Geophys. Res., Vol. 106, 25,873–25,889, 2001. Kauristie, K., T.A. Pulkkinen, O. Amm, A. Viljanen, M. Syrjasuo, P. Janhunen, S. Massetti, S. Orsini, M. Candidi, J. Watermann, E. Donovan, P. Prikryl, I.R. Mann, P. Eglitis, C. Smith, W.F. Denig, H.J. Opgenoorth, M. Lockwood, M. Dunlop, A. Vaivads, M. Andre, “Ground-based and satellite observations of high-latitude auroral activity in the dusk sector of the auroral oval,” Ann. Geophys., Vol. 19, pp. 1367-1398, 2001. Khan, H., S.W.H. Cowley, E. Kolesnikova, M. Lester, M.J. Brittnacher, T.J. Hughes, W.J. Hughes, W.S. Kurth, D.J. McComas, L. Newitt, C.J. Owen, G.D. Reeves, H.J. Singer, C.W. Smith, D.J. Southwood, and J.F. Watermann, “Observations of two complete substorm cycles during the Cassini Earth swing-by: Cassini magnetometer data in a global context,” J. Geophys. Res., Vol. 106, pp. 30,141-30,176, 2001. Lam, M.M., and A.S. Rodger, “A case study test of Araki’s physical model of geomagnetic sudden commencement,” J. Geophys. Res., Vol. 106, p. 13,135–13,144, 2001. Lockwood, M., H. Opgenoorth, A.P. van Eyken, A. Fazakerley, J.-M. Bosqued, W. Denig, J. Wild, C. Cully, R. Greenwald, G. Lu, O. Amm, H. Frey, A. Strømme, P. Prikryl, M.A. Hapgood, M.N. Wild, R. Stamper, M. Taylor, I. McCrea, K. Kauristie, T. Pulkkinen, F. Pitout, A. Balogh, M. Dunlop, H. Rème, R. Behlke, T. Hansen, G. Provan, P. Eglitis, S.K. Morley, D. Alcayde, P.-L. Blelly, J. Moen, E. Donovan, M. Engebretson, M. Lester, J. Watermann, M.F. Marcucci, “Coordinated Cluster, ground-based instrumentation and low-altitude satellite observations of transient poleward-moving events in the ionosphere and in the tail lobe,” Ann. Geophys., Vol. 19, pp. 1589-1612, 2001. Lockwood, M., A. Fazakerley, H. Opgenoorth, J. Moen, A.P. van Eyken, M. Dunlop, J.-M. Bosqued, G. Lu, C.Cully, P. Eglitis, I.W. McCrea, M.A. Hapgood, M.N. Wild, R. Stamper, W. Denig, M. Taylor, J.A. Wild, G. Provan, O. Amm, K. Kauristie, T. Pulkkinen, A. Strømme, P. Prikryl, F. Pitout, A. Balogh, H. Rème, R. Behlke, T. Hansen, R. Greenwald, H. Frey, S.K. Morley, D. Alcayde, P.-L. Blelly, E. Donovan, M. Engebretson, M. Lester, J. Watermann, M.F. Marcucci, “Coordinated Cluster and ground-based instrument observations of transient changes in the magnetopause boundary layer during an interval of predominantly northward IMF: relation to reconnection pulses and FTE signatures,” Ann. Geophys., Vol. 19, pp. 1613-1640, 2001. Milikh, G.M., Y.S. Dimant, X. Shao, P.N. Guzdar, A.S. Sharma, K. Papadopoulos, E.M. Burns, C.C. Goodrich, T.J. Rosenberg,, A.T. Weatherwax, M.J. Wiltberger, J.G. Lyon and J.A. Fedder, "Modeling ionospheric absorption modified by anomalous heating during substorms," Geophys. Res. Lett., 28(3), 487–490, 2001. Murr, D.L. and W.J. Hughes, "Reconfiguration timescales of ionospheric convection," Geophys. Res. Lett., 28(11), 2145–2148, 2001. Opgenoorth, H.J., M. Lockwood, D. Alcayde, E. Donovan, M.J. Engebretson, A.P. van Eyken, K. Kauristie, M. Lester, J. Moen, J. Watermann, H. Alleyne, M. Andre, M.W. Dunlop, N. Cornilleau-Wehrlin, A. Masson, A. Fazerkerley, H. Rème, R. André, O. Amm, A. Balogh, R. Behlke, P.L. Blelly, H. Boholm, E. Borälv, J.M. Bosqued, S. Buchert, M. Candidi, J.C. Cerisier, C. Cully, W.F. Denig, P. Eglitis, R.A. Greenwald, B. Jackal, J.D. Kelly, I. Krauklis, G. Lu, I.R. Mann, M.F. Marcucci, I.W. McCrea, M. Maksimovic, S. Massetti, P.M.E. Décréau, D.K. Milling, S. Orsini, F. Pitout, G. Provan, J.M. Ruohoniemi, J.C. Samson, J.J. Schott, F. Sedgemore-Schulthess, R. Stamper, P. Stauning, A Strömme, M. Taylor, A. Vaivads, J.P. Villain, I. Voronkov, J.A. Wild, and M. Wild, “Coordinated ground-based, low-altitude satellite and Cluster observations on global and local scales during a transient postnoon sector excursion of the magnetospheric cusp,” Ann. Geophysicae 19, European Geophysical Society, 1367-1398, 2001. Pallamraju, D., J. Baumgardner, S. Chakrabarti and T. R. Pedersen, “Simultaneous ground-based observations of an auroral arc in daytime OI 630.0nm emission and by Incoherent Scatter Radar,” J. Geophys. Res. Vol. 106, 5543-5549, 2001. Pilipenko, V., J. Watermann, V. Popov, and V. Papitashvili, “Relationship between Auroral Electrojet and Pc5 ULF waves,” J. Atmos. Sol.-Terr. Phys., Vol. 63, pp. 1545-1557, 2001. Popov, V.A., V.O. Papitashvili, and J.F. Watermann, “Modeling of equivalent ionospheric currents from meridian magnetometer chain data,” Earth Planets Space, Vol. 53, pp. 129-137, 2001. Sastri, J.H., T. Takeuchi, T. Araki, K. Yumoto, S. Tsunomura, H. Tachihara, H. Lühr, and J. Watermann, “Preliminary impulse (PI) of the geomagnetic storm sudden commencement of November 18, 1993,” J. Geophys. Res.,Vol. 106, pp. 3905-3918, 2001. Semeter, J., D. Lummerzheim, and G. Haerendel, “Simultaneous multispectral imaging of the discrete aurora,” J. Atmos. Sol. Terr. Phys., 63(18) 1981-1982, 2001. DOWNLOAD 1.9MB PDF Stauning, P., F. Primdahl, J. Watermann, and O. Rasmussen, “IMF By-related cusp currents observed from the Ørsted satellite and from ground,” Geophys. Res. Lett., Vol. 28 , pp. 99-102, 2001. Wahr, J., T. vanDam, K. Larson, and O. Francis, “Geodetic measurements in Greenland and their implications,” J. Geophys. Res., 106, B8, 16567-16582, 2001. Wahr, J., T. vanDam, K. Larson, and O. Francis, “GPS measurements of vertical crustal motion in Greenland,” J. Geophys. Res.-Atmospheres, 106, 33,755-33760, 2001. Wang, W., T.L. Killeen, A.G. Burns, and B.W. Reinisch, "A real-time model-observation comparison of F2 peak electron densities during the Upper Atmospheric Research Collaboratory campaign of October 1997," J. Geophys. Res., 106(A10), 21,077–21,082, 2001. Xu, L., A.V. Kustov, J.P. Thayer, and M.A. McCready, “SuperDARN Convection and Sondrestrom plasma drift,” Annales Geophys., 19, 749-759, 2001. BACK TO TOP 2000 Borälv, E., P. Eglitis, H.J. Opgenoorth, E. Donovan, G. Reeves, and P. Stauning, “The dawn and dusk electrojet response to substorm onset,” Ann. Geophys., 18, pp. 1097–1107, 2000. Chrissan, D.A., and A.C. Fraser-Smith, “A Comparison of Low-Frequency Radio Noise Amplitude Probability Distribution Models,” Radio Science, 35, 195–208, 2000. Crowley, G., A.J. Ridley, D. Deist, S. Wing, D.J. Knipp, B.A. Emery, J. Foster, R. Heelis, M. Hairston, and B.W. Reinisch, "Transformation of high-latitude ionospheric F region patches into blobs during the March 21, 1990, storm," J. Geophys. Res., 105(A3), 5215–5230, 2000. Engebretson, M.J., R.K. Cobian, J.L. Posch, and R.L. Arnoldy, “A conjugate study of Pc 3-4 pulsations at cusp latitudes: Is there a clock angle effect?,” J. Geophys. Res., 105, 15965, 2000. Gerrard, A.J., T.J. Kane, J.P. Thayer, “Year-round temperature and wave measurements of the Arctic middle atmosphere for 1995-1998,” Geophysical Monograph 123, Atmospheric Science across the Stratopause, AGU, 2000. Hecht, J.H., D.L. McKenzie, A.B. Christensen, D.J. Strickland, J.P. Thayer, J. Watermann, “Simultaneous observations of lower thermospheric composition change during moderate auroral activity from Kangerlussuaq and Narsarsuaq, Greenland,” J. Geophys. Res., Vol. 105, No. A12, pp. 27109-27118, 2000. Heinselman, C.J., “Auroral effects on the gas phase chemistry of meteoric sodium,” J. Geophys. Res., 105, D10, pp. 12181-12192, 2000. Huang, C., D. Murr, G.J. Sofko, W.J. Hughes, and T. Moretto, "Ionospheric convection response to changes of interplanetary magnetic field Bz component during strong By component," J. Geophys. Res., 105(A3), 5231–5244, 2000. Hughes, J.M., J. LaBelle, M. Trimpi, “A medium frequency interferometer for studying auroral radio emissions,” Rev. Sci. Instr., vol 71, p 3200, 2000. Korotova, G.I., M.G. Kivelson, D.G. Sibeck, T.A. Potemra, and P. Stauning, "Multipoint observations of global magnetospheric compressions," J. Geophys. Res., 105(A10), 23,293–23,302, 2000. Moretto, T., A.J. Ridley, M.J. Engebretson, and O. Rasmussen, “High-Latitude ionospheric response to a sudden impulse event during northward IMF conditions,” J. Geophys. Res., 105, 2521, 2000. Papitashvili, V.O., C.R. Clauer, F. Christiansen, V.A. Pilipenko, V.A. Popov, O. Rasmussen, V.P. Suchdeo, and J.F. Watermann, “Geomagnetic disturbances at high latitudes during very low solar wind density event,” Geophys. Res. Lett., Vol. 27, pp. 3785-3788, 2000. Pedersen, T.R., B.G. Fejer, R.A. Doe, and E.J. Weber, “An incoherent scatter radar technique for determining two-dimensional horizontal ionization structure in polar cap F-region patches,” J. Geophys. Res., 105, 10637, 2000. Pi, X., M. Mendillo, W.J. Hughes, M.J. Buonsanto, D.P. Sipler, J. Kellly, Q. Zhou, G. Lu, and T.J. Hughes, "Dynamical effects of geomagnetic storms and substorms in the middle-latitude ionosphere: An observational campaign," J. Geophys.Res., Vol. 105, pp. 7403-7417, 2000. Pilipenko, V. A., E. N. Fedorov, M. J. Engebretson, V. O. Papitashvili, and J. Watermann, “Poleward progressing quasi-periodic disturbances at cusp latitudes: The role of wave processes,” J. Geophys. Res., Vol. 105, 27,569-27,587, 2000. Richmond, A.D., and J.P. Thayer, “Ionospheric Electrodynamics: A tutorial,” AGU Monograph on Magnetospheric Currents, 2000. Takeuchi, T., T. Araki, H. Luehr, O. Rasmussen, J. Watermann, D.K. Milling, I.R. Mann, K. Yumoto, K. Shiokawa, and T. Nagai, “Geomagnetic negative sudden impulse due to a magnetic cloud observed on May 13, 1995,” J. Geophys.Res., Vol. 105, pp. 18,835-18,846, 2000. Thayer, J.P., “High latitude currents and their energy exchange with the ionosphere-thermosphere system,” J. Geophys. Res., Vol. 105, No. A10, pp. 23015-23024, 2000. vanDam, T., K. Larson, J. Wahr, O. Francis, and S. Gross, “Using GPS and absolute gravity to observe ice mass changes in Greenland,” Transact. Am. Geophys. U. (EOS), 81, 421, 426-427, 2000. Watanabe, M., N. Sato, R.A. Greenwald, M. Pinnock, M.R. Hairston, R.L. Rairden, D.J. McEwen, “The ionospheric response to interplanetary magnetic field variations: Evidence for rapid global change and the role of preconditioning in the magnetosphere,” J. Geophys. Res., Vol. 105, No. A10, 22,955-22,977, October 2000. Watermann, J., and P. Stauning, “Space-time ambiguities in observations of the magnetospheric cusp: the need for small-scale multi-point magnetospheric measurements,” ESA SP-449, pp. 299-302, 2000. Yagova, N.V., V.A. Pilipenko, A.S. Rodger, V.O. Papitashvili, and J.F. Watermann, “Long period ULF activity at the polar cap preceding substorm,” ESA SP-443, pp. 603-606, 2000. BACK TO TOP 1999 Aikio, A.T., V.A. Sergeev, M.A. Shukhtina, L.I. Vagina, V. Angelopoulos and G.D. Reeves, "Characteristics of pseudobreakups and substorms observed in the ionosphere, at the geosynchonous orbit, and in the midtail," J. Geophys. Res., 104, 12263-12287, 1999. Amm, O., M.J. Engebreston, R.A. Greenwald, H. Luehr and T. Moretto, "Direct determination of IMF By-related cusp current systems, using SuperDARN radar and multiple ground magnetometer data: A link to theory on cusp origin," J. Geophys. Res., 104, 17187-17198, 1999. Buonsanto, M.J., S.A. Gonzalez, G.Lu, B.W. Reinisch, and J.P. Thayer, "Coordinated incoherent scatter radar study of the January, 1997 storm," J. Geophys. Res., Vol. 104, No. A11, pp. 24625-24637, 1999. Buonsanto,M. J., S. Gonzales, X. Pi, J. M. Ruohoniemi, M. Sulzer, W. Swartz, J. P. Thayer, and D. N. Yuan, "Radar chain study of the May 1995 storm", J. Atmos. Solar-Terr. Phys., Vol. 61, pp. 233-248, 1999. Chao-Song, H., G.J. Sofko, D. Murr, W.J. Hughes and T. Moretto, "High-latitude ionospheric convection during strong interplanetary magnetic field By," Geophys. Res. Lett., 26, 405-408, 1999. Engebretson, M.J., D.L. Murr, W.J. Hughes, H. Luhr, T. Moretto, J.L. Posch, A.T. Weatherwax, T.J. Rosenberg, C.G. Maclennan, L.J. Lanzerotti, F. Marcucci, S. Dennis, G. Burns, J. Bitterly, and M. Bitterly, "A multipoint determination of the propagation velocity of a sudden commencement across the polar ionosphere", J. Geophys. Res., 104, 22,433-22,451, 1999. Sivjee, G.G., D. Shen, J.-H. Yee, G.J. Romick, "Variations, with peak emission altitude, in auroral O2 atmospheric (1,1)/(0,1) ratios and its relation to other auroral emissions," J. Geophys. Res., Vol. 104, No. A12, pp. 28,003-28,018, December 1999. Sivjee, G.G., "Polar thermospheric response to solar magnetic cloud/coronal mass ejection interactions with the magnetosphere," J. Atmos. Sol. Terr. Phys., 61, 207-215, 1999. Valladares, C. E., D. Alcayde, J. V. Rodriguez, J. M. Ruohoniemi, A. P. van Eyken, "Observations of plasma density structures in association with the passage of traveling convection vortices and the occurrence of large plasma jets," Annales Geophysicae, 17, 1020-1039, 1999. Vennerstrøm, S., "Dayside magnetic ULF power at high latitudes: A possible long-term proxy for the solar wind velocity?" J. Geophys. Res., 104, A5, 10145-10157, 1999. Weatherwax, A.T., H.B. Vo, T.J. Rosenberg, S.B. Mende, H.U. Frey, L.J. Lanzerotti, and C.G.Maclennan, "A dayside ionospheric absorption perturbation in response to a large deformation of the magnetopause," Geophys. Res. Lett., 26, 517-520, 1999. Won, Y.-I., R.J. Niciejewski, T.L. Killeen, R.M. Johnson, and B.Y. Lee, "Observations of high-latitude lower thermospheric winds from Thule Air Base and Søndre Strømfjord, Greenland," J. Geophys. Res., 104(A1), 25–32, 1999. BACK TO TOP 1998 Arnoldy, R. L., J. L. Posch, M. J. Engebretson, H. Fukunishi, H. J. Singer, and T. Onsager, "Pi 1 magnetic pulsations in space and at high latitudes on the ground," J. Geophys. Res., 103, 23581, 1998. Bedey, D. F., and B. J. Watkins, Diurnal occurrence of thin metallic ion layers in the high-latitude ionosphere, Geophys. Res. Lett., 25, 3767-3770, 1998. Fraser-Smith, A.C., and P.R. Bannister, "Reception of ELF signals at Antipodal Distances," Radio Science, 33, 83–88, 1998. Gerrard, A. J., T. J. Kane , and J. P. Thayer, "Noctilucent clouds and wave dynamics: Observations at Sondrestrom, Greenland," Geophysical Research Letters, Vol. 25, No. 15, p. 2817, 1998. Heinselman, C.J., J.P. Thayer, and B.J. Watkins, "A high-latitude observation of sporadic sodium and sporadic E layer formation," Geophys. Res. Lett., Vol. 25 , No. 16, p. 3059, 1998. Hughes, J., and J. LaBelle, "The latitude dependence of auroral roar emissions," J. Geophys. Res., 103, 14910, 1998. Lu, G., D.N. Baker, R.L. McPherron, C.J. Farrugia, D. Lummerzheim, J.M. Ruohoniemi, F.J. Rich, D.S. Evans, R.P. Lepping, M. Brittnacher, X. Li, R. Greenwald, G. Sofko, J. Villain, M. Lester, J. Thayer, T. Moretto, D. Milling, O. Troshichev, A. Zaitzev, V. Odintzov, G. Makarov, and K. Hayashi, "Global energy disposition during the January 1997 magnetic cloud event," J. Geophys. Res., Vol. 103, A6, pp. 11,685-11,694, 1998. Moretto, T. and A. Yahnin, "Mapping travelling convection vortex events with respect to energetic particle boundaries," Ann. Geophysicae, 16, 891-899, 1998. Nilsson, H., S. Kirkwood and T. Moretto, "Incoherent scatter radar observations of the cusp acceleration region and cusp field-aligned currents," J. Geophys. Res., 103, A11, 26721, 1998. Nilsson, H., H.M. Yamauchi, T. Mukai, T. Yamamoto and T. Moretto, "Observations of an enhanced convection flow channel for northward turning IMF," Geoph. Res. Lett. 24, 3137, 1998. Pedersen, T.R., B.G. Fejer, R.A. Doe, and E.J. Weber, "Incoherent scatter radar observations of horizontal F region plasma structure over Sondrestrom, Greenland, during polar cap patch events," Radio Sci., 33(6), pp. 1847-1866, 1998. Pulkkinen, T.I., D.N. Baker, L.A. Frank, J.B. Sigwarth, H.J. Opgenoorth, R. Greenwald, E. Friis-Christensen, T. Mukai, R. Nakamura, H. Singer, G.D. Reeves and M. Lester, "Two substorm intensifications compared: Onset expansion, and global consequences," J. Geophys. Res., 103, 15-27, 1998. Ridley, A., T. Moretto, P. Ernstrom and C.R. Clauer, "Global analysis of three travelling convection vortex events during the Nov. 93 storm using the assimilative mapping of ionospheric electrodynamics technique," J. Geophys. Res., 103, A11, 26349-26358, 1998. Sanchez, E. R., J. P. Thayer, J. D. Kelly, and R. A. Doe, "Energy transfer between the ionosphere and magnetosphere during the January 1997 CME event," Geophys. Res. Lett., Vol 25, pp. 2597-2600, 1998. Shepherd, S.G., J. LaBelle, R.A. Doe, M.A. McCready, A.T. Weatherwax, "Ionospheric structure and the generation of auroral roar," J. Geophys. Res., Vol. 103, No. A12, pp. 29,253-29,266, December 1998. Stauning, P., "Substorm modelling based on observations of an intense high-latitude absorption surge event," J. Geophys. Res., 103, 26,433-26,452, 1998. Stauning, P., "Ionspheric radiowave absorption processes in the dayside polar cap boundary regions," J. Moen, A. Egeland and M. Lockwood (eds.), Polar Cap Boundary Phenomena, 233-254, Kluwer Academic Publishers, 1998. Steele, D.P., McEwen, D.J., Sivjee, G.G., "Ground-based optical observations from the north magnetic pole during the January 1997 magnetic cloud event," Geophys. Res. Lett., 25, 14, 1998. Swenson, G.R., R.L. Rairden, S.C. Solomon, and S. Ananth, "Spectroscopic instrumentation for auroral studies," Applied Optics, 37, p. 5760, 1998. Thayer, J.P., "Radar measurements of the energy rates associated with the dynamic ionospheric load/generator," Geophys. Res. Lett., Vol. 25, No. 4, pp. 469-472, 1998. Thayer, J.P., " Height-resolved Joule heating rates in the high-latitude E region and the influence of neutral winds," J. Geophys. Res., Vol. 103, No. A1, pp. 471-487, 1998. Valladares, C.E., D.T. Decker, R. Sheehan, D.N. Anderson, T. Bullett, and B.W. Reinisch, "Formation of polar cap patches associated with north-to-south transitions of the interplanetary magnetic field," J. Geophys. Res., 103(A7), 14,657–14,670, 1998. Yoon, P.H., A.T. Weatherwax, T. J. Rosenberg, J. LaBelle, and S.G. Shepherd, "Propagation of medium frequency (1–4 MHz) auroral radio waves to the ground via the Z-mode radio window," J. Geophys. Res., 103(A12), 29,267–29,276, 1998. BACK TO TOP 1997 Azeem, S.M.I., and R.M. Johnson, "Lower thermospheric neutral winds at Søndre Strømfjord: A seasonal analysis," J. Geophys. Res., 102, A4, 7379-7397, 1997. Bedey, D. F., and B. J. Watkins, "Large-scale transport of metallic ions and the occurrence of thin layers in the polar ionosphere," J. Geophys. Res., 102, 9675-9681, 1997. Doe, R. A., J. F. Vickrey, E. J. Weber, H. A. Gallagher, and S. B. Mende, "Ground-based signatures for the nightside polar cap boundary," J. Geophys. Res., 102, p. 19,989, 1997. Doe, R. A., J. D. Kelly, D. Lummerzheim, G. K. Parks, G. A. Germany, and J. Spann, "Initial comparison of POLAR UVI and Sondrestrom IS radar estimates for auroral energy flux," Geophys. Res. Lett., 24, 999, 1997. Gerrard, A.J., T.J. Kane, D.D. Meisel, J.P. Thayer, and R.B. Kerr, "Investigation of a resonant lidar for measurement of ionospheric metastable helium," J. Atmos. Solar-Terr. Phys., Vol. 59, No. 16, pp. 2023-2034, 1997. Hecht, J.H., J.P. Thayer, D.J. Gutierrez, and D.L. McKenzie, "Multi-Instrument Zenith Observations of Noctilucent Clouds Over Greenland on July 30/31, 1995," J. Geophys. Res., Vol. 102, No. D2, pp. 1959-1970, 1997. LaBelle, J., S.G. Shepherd, and M.L. Trimpi, "Observations of auroral medium frequency burst emissions," J. Geophys. Res., 102, 22221, 1997. Nishino, M., H. Yamagishi, P. Stauning, T.J. Rosenberg, and J.A. Holtet, "Location, spatial scale and motion of radio wave absorption in the cusp-latitude ionosphere observed by imaging riometers", J. Atmos. Sol.-Terr. Phys., 59, 903-924, 1997. Palo,S.E., M.E. Hagen, C.E. Meek, R.A. Vincent, M.D. Burrage, C. McLandress, S.J. Franke, W.E. Ward, R.R. Clark, P. Hoffmann, R. Johnson, D. Kurschner, A.H. Manson, D. Murphy, T. Nakamura, Yu.I. Portnyagin, J.E. Salah, R. Schminder, W. Singer, T. Tsuda, T.S. Virdi, and Q. Zhou, "An intercomparison between the GSWM, UARS, and ground based radar observations: a study in January 1993," Ann. Geophysicae, 15, 1123-1141, 1997. Sivjee, G.G., and D. Shen, "Auroral optical emissions during the solar magnetic cloud event of October 1995," J. Geophys. Res., 102, A4, p. 7431-7438, 1997. Thayer, J.P., N.B. Nielsen, R.E. Warren, C.J. Heinselman, and J. Sohn, "Rayleigh lidar system for middle atmosphere research in the arctic", Opt. Eng.,36(7). pp.2045-2061, 1997. BACK TO TOP 1996 Angelopoulos, V., F.V. Coroniti, C.F. Kennel, M.G. Kivelson, R.J. Walker, C.T. Russell, R.L. McPherron, E.R. Sanchez, C.-I. Meng, W. Baumjohann, G.D. Reeves, R.D. Belian, N. Sato, E. Friis-Christensen, P.R. Sutcliffe, K. Yumoto, T. Harris, "Multi-Point Analysis of Bursty Bulk Flow Events: I. April 11, 1985," J. Geophys. Res., Vol. 101, A3, p. 4967, 1996. Arnoldy, R. L., M. J. Engebretson, J. L. Alford, R. E. Erlandson, and B. J. Anderson, "Magnetic impulse events and associated Pc 1 bursts at dayside high latitudes," J. Geophys. Res., 101, 7793, 1996. Bedey, D. F., and B. J. Watkins, "Seasonal occurrence of thin metallic ion layers at high latitudes," Geophys. Res. Lett., 23, 2789-2792, 1996. Blanchard, G.T., L.R. Lyons, O. de la Beaujardière, R.A. Doe, and M. Mendillo, "Measurement of the Magnetotail Reconnection Rate," J. Geophys. Res., Vol. 101, No. 15, p. 15,265, 1996. Kagan, L., M.C. Kelley, R.A. Doe, "Ionospheric Electron Heating by Structured Electric Fields: Theory and Experiment," J. Geophys. Res., Vol. 101, A5, pp. 10,893-10,907, 1996. Nilsson, H., M. Yamauchi, L. Eliasson, O. Norberg, J. Clemmons, "The Ionospheric Signature of the Cusp as Seen by Incoherent Scatter Radar," J. Geophys. Res., Vol. 101, pp. 10,947,-10,963, 1996. Sanchez, E.R., J.M. Ruohoniemi, C.-I. Meng, E. Friis-Christensen, "Toward an Observational Synthesis of Substorm Models: Precipitation Regions and High-Latitude Convection Reversals Observed in the Nightside Auroral Oval by HF Radars and DMSP Satellites," J. Geophys. Res., Vol. 101, A9, p. 19,801, 1996. Thayer, J.P., N.B. Nielsen, R.B. Kerr, J. Noto, "Rayleigh Lidar Observations During Arctic Summer Conditions," IGARRS Symposium, Lincoln, Nebraska, Vol. 1, pp. 686-690, May 1996. Valladares, C.E., D.T. Decker, R. Sheehan, and D.N. Anderson, "Modeling the formation of polar cap patches using large plasma flows," Radio Sci., 31(3), 573–594, 1996. BACK TO TOP 1995 Anderson, H. M., M. J. Engebretson, R. L. Arnoldy, L. J. Cahill, Jr., and P. T. Newell, "A statistical study of hydromagnetic chorus events at very high latitudes," J. Geophys. Res., 100, 3681, 1995. Arnoldy, R. L., and M. J. Engebretson, "Magnetic impulse events (MIE) measured at Pc 1 frequencies and at multiple sites," Antarctic Journal of the United States, 1994 Review Issue, 317, 1995. Clauer, C.R., P. Stauning, T.J. Rosenberg, E. Friis-Christensen, P.M. Miller, and R.J. Sitar, "Observations of a solar-wind-driven modulation of the dayside ionospheric DPY current system", J. Geophys. Res., 100, 7697-7713, 1995. Doe, R.A., J.F. Vickrey, and M. Mendillo, "Electrodynamic Model for the Formation of Auroral Ionospheric Cavities," J. Geophys. Res., Vol. 100, p. 9683, 1995. Engebretson, M. J., W. J. Hughes, J. L. Alford, E. Zesta, L. J. Cahill, Jr., R. L. Arnoldy, and G. D. Reeves, "Magnetometer array for cusp and cleft studies observations of the spatial extent of broadband ULF magnetic pulsations at cusp/cleft latitudes," J. Geophys. Res., 100, 19371, 1995. Gary, J.B., R.A. Heelis, and J.P. Thayer, "Summary of Field-Aligned Poynting Flux Observations from DE 2," Geophys. Res. Lett., Vol. 22, No. 14, pp. 1861-1864, 1995. Kelly, J.D., C.J. Heinselman, J.F. Vickrey, and R.R. Vondrak, "The Sondrestrom radar and accompanying ground-based instrumentation," Space Sci. Rev., Vol 71, Nos. 1-4, pp. 797-813, 1995. Killeen, T.L., Y.-I. Won, R.J. Niciejewski, and A.G. Burns, "Upper thermosphere winds and temperatures in the geomagnetic polar cap: Solar cycle, geomagnetic activity, and interplanetary magnetic field dependencies," J. Geophys. Res., 100(A11), 21,327–21,342, 1995. Min, Q.-L., B.J. Watkins, "Determination of auroral heat fluxes and thermal ion outflows using a numerical ionospheric model and incoherent-scatter radar data," J. Geophys. Res., Vol. 100, No. A1, pp. 251-256, 1995. Scali, J.L., B.W. Reinisch, C.J. Heinselman, and T.W. Bullett, "Coordinated Digisonde and Incoherent Scatter Radar F-Region Drift Measurements at Sondre Stromfjord," Radio Sci., Vol. 30, No. 5, pp. 1481-1498, Sept-Oct 1995. Showen, R.L., "Spectral plasma lines at Sondrestrom," Radio Sci., 30(6), pp. 1841-1854, 1995. Stauning, P., C.R. Clauer, T.J. Rosenberg, E. Friis-Christensen, and R. Sitar, "Observations of solar-wind-driven progression of interplanetary magnetic field By-related dayside ionospheric disturbances," J. Geophys. Res., 100, 7567-7585, 1995. Stauning, P., H. Yamagishi, M. Nishino, and T.J. Rosenberg, "Dynamics of cusp-latitude absorption events observed by imaging riometers," J. Geomag. Geoelectr., 47, 823-845, 1995. Thayer, J.P., J.F. Vickrey, R.A. Heelis, and J.B. Gary, "Interpretation and Modeling of the High-Latitude Electromagnetic Energy Flux," J. Geophys. Res., Vol. 100, No. A10, pp. 19,715-19,728, 1995. Thayer, J.P., N. Nielsen, and J. Jacobsen, "Noctilucent Cloud Observations Over Greenland by a Rayleigh Lidar," Geophys. Res. Lett., Vol. 22, No. 21, pp. 2961-2964, 1995. BACK TO TOP 1994 Arnoldy, R. L., M. A. Popecki, and M. J. Engebretson, "Identifying the source of magnetic pulsations of frequency between 0.1 and 0.4 Hz (Pc 1/2) measured at high geomagnetic latitudes," Antarctic Journal of the United States, 1993 Review Issue, 323, 1994. Basu, S., S. Basu, P.K. Chaturvedi, and C.M. Bryant, Jr., "Irregularity Structures in the Cusp/Cleft and Polar Cap Regions," Radio Sci., Vol. 29, No. 1, pp. 195-207, Jan-Feb 1994. Berg, G.A., M.C. Kelley, M. Mendillo, R.A. Doe, F. Primdahl, C. Kletzing, J.F. Vickrey, and K.D. Baker, "Formation and eruption of sun-aligned polar cap arcs," J. Geophys. Res., Vol 99, No. A9, pp. 17,577-17,589, September 1994. de la Beaujardière,O., L.R. Lyons, M. Ruohoniemi, E. Friis-Christensen, C. Danielsen, F. Rich, and P. Newell, "Quiet-time intensifications along the poleward auroral boundary near midnight," J. Geophys. Res., Vol. 99, No. A1, pp. 287-298, 1994. Decker, D.T., C.E. Valladares, R. Sheehan, Su. Basu, D.N. Anderson, and R.A. Heelis, "Modeling daytime F layer patches over Sondrestrom," Radio Science, 29(1), 249-268, 1994. Doe, R.A., M. Mendillo, J.F. Vickrey, J.M. Ruohoniemi, R.A. Greenwald, "Coordinated Convection Measurements in the Vicinity of Auroral Cavities," Radio Sci., Vol. 29, No. 1, pp. 293-309, Jan-Feb 1994. Engebretson, M.J., J.R. Beck, D.L. Detrick, T.J. Rosenberg, R.L. Rairden, S.B. Mende, R.L. Arnoldy, and L.J. Cahill, Jr., "Optical evidence that modulated electron precipitation near the magnetopause boundary drives high latitude Pc 3/4 magnetic pulsations," Physical Signatures of Magnetospheric Boundary Layer Processes, Kluwer Academic Publ., 361, 1994. Erlandson, R. E., L. J. Zanetti, M. J. Engebretson, R. L. Arnoldy, T. Bosinger, and K. Mursula, "Pc 1 waves generated by a magnetospheric compression during the recovery phase of a geomagnetic storm, in Solar Wind Sources of Magnetospheric Ultra-Low-Frequency Waves," Geophysical Monograph 81, edited by M. J. Engebretson, K. Takahashi, and M. Scholer, American Geophysical Union, 399, 1994. Fullekrug, M., and A.C. Fraser-Smith, "Further evidence for a global correlation of the Earth-ionosphere cavity resonances", Geophys. Res. Letters, Vol 23, No. 20, p. 2773, October 1994. Kamide, Y., A.D. Richmond, B.A. Emery, C.F. Hutchins, B.-H. Ahn, O. de la Beaujardière, J.C. Foster, R.A. Heelis, H.W. Kroehl, F.J. Rich, and J.A. Slavin, "Ground-based studies of ionospheric convection associated with substorm expansion," J. Geophys. Res., Vol. 99, A10, p. 19451, 1994. Lu, G., A.D. Richmond, B.A. Emery, P.H. Reiff, O. de la Beaujardière, F.J. Rich, W.F. Denig, H.W. Kroehl, L.R. Lyons, J.M. Ruohoniemi, E. Friis-Christensen, H. Opgenoorth, M.A.L. Persson, R.P. Lepping, A.S. Rodger, T. Hughes, A. McEwin, S. Dennis, R. Morris, G. Burns, and L. Tomlinson, "Interhemispheric Asymmetry of the High-Latitude Ionospheric Convection Pattern," J. Geophys. Res., Vol. 99, No. A4, pp. 6491-6510, 1994. Nilsson, H., S. Kirkwood, L. Eliasson, O. Norberg, J. Clemmons and M. Boehm, "The ionospheric signature of the cusp: A case study using Freja and the Sondrestrom radar," Geophys. Res. Lett., 21, 1923-1926, 1994. Papitashvili, V.O. and C.R.Clauer, "Comment on the paper "Sondrestrom overview" by Wickwar et al.," Geophys. Res. Lett., Vol. 21, No. 22, pp. 2449-2450, 1994. Rodger, A.S., M. Pinnock, J.R. Dudeney, J. Watermann, O. de la Beaujardière, K.B. Baker, "Simultaneous two hemisphere observations of the presence of polar patches in the night-side ionosphere," Ann. Geophysicae, Vol. 12, Issue 7, pp. 642-648, 1994. Strickland, D.J., J.H. Hecht, A.B. Christensen, and J.D. Kelly, "Relationship between energy flux Q and mean energy <E> of auroral electron spectra based on radar data from the 1987 CEDAR campaign at Sondre Stromfjord, Greenland," J. Geophys. Res., Vol. 99, No. A10, pp. 19,467-19,473, October 1994. Taylor, J.R., T.K. Yeoman, M. Lester, M.J. Buonsanto, J.L. Scali, J.M. Ruohoniemi, and J.D. Kelly, "Ionospheric Convection During the Magnetic Storm of 20/21 March 1990," Annales Geophysicae, Vol 12, pp. 1174-1191, December 1994. Valladares, C.E., S. Basu, J. Buchau, and E. Friis-Christensen, "Experimental Evidence for the Formation and Entry of Patches into the Polar Cap," Radio Sci., Vol. 29, No. 1, pp. 167-194, Jan-Feb 1994. Wang, Z., T. J. Rosenberg, P. Stauning, S. Basu, and G. Crowley, "Calculations of Riometer Absorption Associated with F Region Plasma Structures Based on Sondre Stromfjord Incoherent Scatter Radar Observations," Radio Sci., Vol. 29, No. 1, pp. 209-215, Jan-Feb 1994. Watermann, J., O. de la Beaujardière, D. Lummerzheim, J. Woch, P.T. Newell, T. A. Potemra, F.J Rich, and M. Shapshak, "The Dynamic Cusp at Low Altitudes: A Case Study Utilizing Viking, DMSP-F7, and Sondrestrom Incoherent Scatter Radar Observations," Ann. Geophys., Vol. 12, pp. 1144-1157, 1994. Watermann, J., D. Lummerzheim, O. de la Beaujardière, P. Newell, and F.J. Rich, "Ionospheric Footprint of Magnetosheathlike Particle Precipitation Observed by an Incoherent Scatter Radar," J. Geophys. Res., Vol. 9, No. A3, pp. 3855-3867, March 1994. BACK TO TOP 1993 Basu, S., S. Basu, R. Eastes, R.E. Huffman, R.E. Daniell, P.K. Chaturvedi, C.E. Valladares, and R.C. Livingston, "Remote Sensing of Auroral E Region Plasma Structures by Radio, Radar, and UV Techniques at Solar Minimum," J. Geophys. Res., Vol. 98, No. A2, pp. 1589-1602, February 1, 1993. Bristow, W.A., and B.J. Watkins, "Incoherent Scatter Observations of Thin Ionization Layers at Sondrestrom," J. Atmos. Terr. Phys., Vol. 55, No. 6, pp. 873-894, May 1993. Carr, S.S., R.J. Niciejewski and T.L. Killeen, "Remote-sensing of F-Region Ion Drifts and Ion Temperatures at Sondre Stromfjord, Greenland Using Doppler Measurements of the 0+(2P) State," Geophys. Res. Lett., Vol. 20, No. 19, pp. 2035-2038, October 1993. de la Beaujardière, O., J. Watermann, P. Newell, and F. Rich, "Relationship Between Birkeland Current Regions, Particle Precipitation, and Electric Fields," J. Geophys. Res., Vol. 98, No. A5, pp. 7711-7720, May 1993. Doe, R.A., M. Mendillo, J.F. Vickrey, L.J. Zanetti, and R.W. Eastes, "Observations of Nightside Auroral Cavities," J. Geophys. Res., Vol. 98, No. A1, pp. 293-310, January 1, 1993. Gallagher, H.A., R.L. Carovillano, E.J. Weber, and J.F. Vickrey, "Plasma Flows Associated with an Auroral Arc at the Polar Cap Boundary," in Auroral Plasma Dynamics, Geophys. Monogr. Ser., edited by R.L. Lysak, Vol. 80, pp. 81-88, AGU, Washington, D.C., 1993. Knipp, D.J., B.A. Emery, A.D. Richmond, N.U. Crooker, M.R. Hairston, J.A. Cumnock, W.F. Denig, F.J. Rich, O. de la Beaujardière, J.M. Ruohoniemi, A.S. Rodger, G. Crowley, B.H. Ahn, D.S. Evans, T.J. Fuller-Rowell, E. Friis-Christensen, M. Lockwood, H.W. Kroehl, C.G. Maclennan, A. McEwin, R.J. Pellinen, R.J. Morris, G.B. Burns, V. Papotashvili, A. Zaitzev, O. Troshichev, N. Sato, P. Sutcliffe, and L. Tomlinson, "Ionospheric Convection Response to Slow, Strong Variations in Northward Interplanetary Magnetic Field: A Case Study for January 14, 1988," J. Geophys. Res., Vol. 98, No. A7, pp. 19,273-19,292, November 1993. Lester, M., O. de la Beaujardière, J.C. Foster, M.P. Freeman, H. Luhr, J.M. Rouohoniemi, and W. Swider, "The Response of the Large Scale Ionospheric Convection Pattern to Changes in the IMF and Substorms: Results from the SUNDIAL 1987 Campaign," Ann. Geophys., Vol 11, pp. 556-571, March 1993. Palmer, R.D., M.F. Larsen, C.J. Heinselman, and I.S. Mikkelsen, "Frequency Domain Interferometry Using the 1290-MHz Sondre Stromfjord Radar: First Results," J. Atmos. and Oceanic Technology, Vol. 10, No. 4, August 1993. Popecki, M. A., R. L. Arnoldy, M. J. Engebretson, and L. J. Cahill, Jr., "High-latitude ground observations of Pc 1/2 micropulsations," J. Geophys. Res., 98, 21481, 1993. Ruohoniemi, J.M., R.A. Greenwald, O. de la Beaujardière, and M. Lester, "The Response of the High-Latitude Dayside Ionosphere to an Abrupt Northward Transition in the IMF," Ann. Geophys., Vol. 11, pp. 544-555, 1993. Sica, R.J., P. St. Maurice, G. Hernandez, G.J. Romick, and R.T. Tsunoda, "Computations of Local Ion Energy Balance in the Auroral Zone," J. Geophys. Res., Vol. 98, No. A9, pp. 15,667-15,676, September 1993. Watermann, J., O. de la Beaujardière, F.J. Rich, "Comparison of Ionospheric Electrical Conductances Inferred from Coincident Radar and Spacecraft Measurements and Photoionization Models," J. Atmos. Terr. Phys., Vol. 55, No. 11/12, pp. 1513-1520, 1993. Watermann, J., O. de la Beaujardière, and H.E. Spence, "Space-Time Structure of the Morning Aurora Inferred from Coincident DMSP-F6, -F8, and Sondrestrom Incoherent Scatter Radar Observations," J. Atmos. Terr. Phys., Vol. 55, No. 14. pp. 1729-1739, 1993. BACK TO TOP 1992 Cho, J.Y.N., M.C. Kelley, and C.J. Heinselman, "Enhancement of Thomson Scatter by Charged Aerosols in the Polar Mesosphere: Measurements with a 1.29 GHz Radar," Geophys. Res. Lett., Vol. 19, No. 11, pp. 1097-1100, June 1992. Fraser-Smith, A., "The Natural Background Levels of 50/60 Hz Radio Noise," IEEE Trans. on Electromagnetic Compatibility, Vol. 34, No. 3, pp. 330-337, August 1992. Heinselman, C.J., and J.F. Vickrey, "On the Frequency of Langmuir Waves in the Ionosphere," J. Geophys. Res., Vol. 97, No. A10, pp. 14,905-14,910, October 1992. Heinselman, C.J., and J.F. Vickrey, "On the Spectral Analysis and Interpretation of Incoherent Scatter Plasma Line Echoes," Radio Sci., Vol. 27, No. 2, pp. 221-230, March-April 1992. Kelly, J.D., "Greenland Research Projects," Science, Vol. 255, pp. 1626-1627, March 1992. Knudsen, D.J., M.C. Kelley and J.F. Vickrey, "Alfvén Waves in the Auroral Ionosphere: A Numerical Model Compared With Measurements," J. Geophys. Res., Vol. 97, No. A1, pp. 77-90, January 1992. Niciejewski, R.J., T.L. Killeen, R.M. Johnson, and J.P. Thayer, "The Behavior of the High-Latitude F-Region Neutral Thermosphere in Relation to IMF Parameters," Adv. Space Res., Vol. 12, No. 6, pp. 215-218, 1992. Rich, F.J., and W.F. Denig, "The Major Magnetic Storm of March 13-14, 1989 and Associated Ionosphere Effects," Can. J. Phys., Vol. 70, p. 510-525, 1992. Rishbeth, H., and B.S. Lanchester, "Incoherent Scatter Observations of the E and F Regions," Planet. Space Sci., Vol. 40, No. 2/3, pp. 355-372, 1992. Robinson, R., T. Dabbs, J. Vickrey, R. Eastes, F. Del Greco, R. Huffman, C. Meng, R. Daniell, D. Strickland, and R. Vondrak, "Coordinated Measurements Made by the Sondrestrom Radar and the Polar Bear Ultraviolet Imager," J. Geophys. Res., Vol. 97, No. A3, pp. 2863-2871, March 1992. Thayer, J.P., and J.F. Vickrey, "On the Contribution of the Thermospheric Neutral Wind to High-Latitude Energetics," Geophys. Res. Lett., Vol. 19, No. 3, pp. 265-268, February 7, 1992. Watermann, J.O., O. de la Beaujardière, and P.T. Newell, "Incoherent scatter Radar Observations of Ionospheric Signatures of Cusp-like Electron Precipitation," J. Geomag. Geoelectr., Vol 44, No. 12, pp. 1195-1206, 1992 Watermann, J., O. de la Beaujardière, and P.T. Newell, "Incoherent Scatter Radar Observations of Ionospheric Signatures of Cusp-like Electron Precipitation," J. Geomag. Geoelectr., Vol. 44, No. 12, pp. 1195-1206, 1992. BACK TO TOP 1991 Basu, Su., S. Basu, E. Costa, C. Bryant, C.E. Valladares, and R.C. Livingston, "Interplanetary magnetic field control of drifts and anisotropy of high-latitude irregularities," Radio Sci., 26(4), 1079–1103, 1991. Bristow, W.A., and B.J. Watkins, "Numerical Simulation of the Formation of Thin Ionization Layers at High Latitudes," J. Geophys. Res., Vol. 18, No. 3, pp. 404-407, March 1991. de la Beaujardiére, O., L.R. Lyons, and E. Friis-Christensen, "Sondrestrom Radar Measurements of the Reconnection Electric Field," J. Geophys. Res., Vol. 96, No. A8, pp. 13,907-13,912, August 1, 1991. de la Beaujardière, O., D. Alcaydé, J. Fontanari, and C. Leger, "Seasonal Dependence of High-Latitude Electric Fields," J. Geophys. Res., Vol. 96, No. A4, pp. 5723-5735, April 1, 1991. de la Beaujardière, O., R. Johnson, and V.B. Wickwar, "Ground-Based Measurements of Joule Heating Rates," in Auroral Physics, C.-I. Meng, M.J. Rycroft and L.A. Frank, Eds., Cambridge UP, 1991. Fesen, C.G., and R.G. Roble, "Simulations of the September 1987 Lower Thermospheric Tides With the National Center for Atmospheric Research Thermosphere-Ionosphere General Circulation Model," J. Geophys. Res., Vol. 96, No. A2, pp. 1173-1180, February 1, 1991. Forbes, J.M., and F. Vial, "Semidiurnal Climatology of the E Region," J. Geophys. Res., Vol. 96, No. A2, pp. 1147-1157, February 1, 1991. Forbes, J.M., and J.E. Salah, "Mesosphere-Thermosphere Tidal Coupling During the September 21-25, 1987, LTCS 1 Campaign," J. Geophys. Res., Vol. 96, No. A2, pp. 1135-1145, February 1, 1991. Fraser-Smith, A.C., P.R. McGill, A. Bernardi, R.A. Helliwell, and M.E. Ladd, "Global Measurements of Low-Frequency Radio Noise," in Environmental and Space Electromagnetics, pp. 191--200, H. Kikuchi, Ed., Springer-Verlag, Tokyo, 1991. Fuller-Rowell, T.J., D. Rees, H.F. Parish, T.S. Virdi, P.J.S. Williams, and R.M. Johnson, "Lower Thermosphere Coupling Study: Comparison of Observations with Predictions of the University College London-Sheffield Thermosphere-Ionosphere Model," J. Geophys. Res., Vol. 96, No. A2, pp. 1181-1202, February 1, 1991. Gattinger, R.L., A. Vallance Jones, J.H. Hecht, D.J. Strickland, and J. Kelly, "Comparison of Ground-Based Optical Observations of N2 Second Positive to N2+ First Negative Emission Ratios with Electron Precipitation Energies Inferred from the Sondre Stromfjord Radar," J. Geophys. Res., Vol. 96, No. A7, pp. 11,341-11,351, July 1, 1991. Hecht, J., D.J. Strickland, A.B. Christensen, D.C. Kayser, and R.L. Walterscheid, "Lower Thermospheric Composition Changes Derived from Optical and Radar Data Taken at Sondre Stromfjord During the Great Magnetic Storm of February 1986," J. Geophys. Res., Vol. 96, No. A4, pp. 5757-5776, April 1, 1991. Hedin, A.E., M.A. Biondi, R.G. Burnside, G. Hernandez, R.M. Johnson, T.L. Killeen, C. Mazaudier, J.W. Meriwether, J.E. Salah, R.J. Sica, R.W. Smith, N.W. Spencer, V.B. Wickwar, and T.S. Virdi, "Revised Global Model of Thermosphere Winds Using Satellite and Ground-Based Observations," J. Geophys. Res., Vol. 96, No. A5, pp. 7657-7688, May 1, 1991. Heelis, R.A., and J.F. Vickrey, "Energy Dissipation in Structured Electrodynamic Environments," J. Geophys. Res., Vol. 96, No. A8, pp. 14,189-14,194, August 1, 1991. Hunsucker, R.D., "Radio Techniques for Probing the Terrestrial Ionosphere," in Physics and Chemistry in Space, Vol. 22, M.C.E. Huber, L.J. Lanzerotti, and D. Stoffler, Eds., Springer-Verlag, Berlin Heidelberg, 1991. Johnson, R.M., and T.S. Virdi, "High-Latitude Lower Thermospheric Neutral Winds at EISCAT and Sondrestrom During LTCS 1," J. Geophys. Res., Vol. 96, No. A2, pp. 1099-1116, February 1, 1991. Johnson, R.M., "Sondrestrom Incoherent Scatter Radar Observations During the Lower Thermosphere Coupling Study: September 21-26, 1987," J. Geophys. Res., Vol. 96, No. A2, pp. 1081-1090, February 1, 1991. Kelley, M.C., D.J. Knudsen, and J.F. Vickrey, "Poynting Flux Measurements on a Satellite: A Diagnostic Tool for Space Research," J. Geophys. Res., Vol. 96, No. A1, pp. 201-207, January 1, 1991. Knipp, D.J., A.D. Richmond, B. Emery, N.U. Crooker, O. de la Beaujardière, D. Evans, and H. Kroehl, "Ionospheric Convection Response to Changing IMF Direction," Geophys. Res. Lett., Vol. 18, No. 4, pp. 721-724, April 1991. Marklund, G.T., L.G. Blomberg, J.S. Murphree, R.D. Elphinstone, L.J. Zanetti, R.E. Erlandson, I. Sandahl, O. de la Beaujardière, H. Opgenoorth, and F.J. Rich, "On the Electrodynamical State of the Auroral Ionosphere During Northward Interplanetary Magnetic Field: A Transpolar Arc Case Study," Geophys. Res. Lett., Vol. 96, No. A6, pp. 9567-9578, June 1991. Reese, K.W., R.M. Johnson, and T.L. Killeen, "Lower Thermospheric Neutral Densities Determined from Sondre Stromfjord Incoherent Scatter Radar During LTCS 1," J. Geophys. Res., Vol. 96, No. A2, pp. 1091-1098, February 1, 1991. Robinson, R.M., "A Survey of Polar Cap F Region Electron Densities Measured by the Sondrestrom Radar," Radio Sci., Vol. 26, No. 4, pp. 1069-1078, July-August 1991. Salah, J.E., R.M. Johnson, and C.A. Tepley, "Coordinated Incoherent Scatter Radar Observations of the Semidiurnal Tide in the Lower Thermosphere," J. Geophys. Res., Vol. 96, No. A2, pp. 1071-1080, February 1, 1991. Valladares, C.E., and H.C. Carlson, Jr., "The Electrodynamic, Thermal, and Energetic Character of Intense Sun-Aligned Arcs in the Polar Cap," J. Geophys. Res., Vol. 96, No. A2, pp. 1379-1400, February 1, 1991. Weber, E.J., J.F. Vickrey, H. Gallagher, L. Weiss, C.J. Heinselman, R.A. Heelis, and M.C. Kelley, "Coordinated Radar and Optical Measurements of Stable Auroral Arcs at the Polar Cap Boundary," J. Geophys. Res., Vol. 96, No. A10, pp. 17,847-17,863, October 1, 1991. BACK TO TOP 1990 Boehm, M.H., C.W. Carlson, J.P. McFadden, J.H. Clemmons, and F.S. Mozer, "High-Resolution Sounding Rocket Observations of Large-Amplitude Alfvén Waves," J. Geophys. Res., Vol. 95, No. A8, pp. 12,157-12,171, August 1, 1990. Detrick, D.L., and T.J. Rosenberg, "A Phased-Array Radiowave Imager for Studies of Cosmic Noise Absorption," Radio Sci., Vol. 25, No. 4, pp. 325-338, July-August 1990. Doolittle, J.H., S.B. Mende, R.M. Robinson, G.R. Swenson, and C.E. Valladares, "An Observation of Ionospheric Convection and Auroral Arc Motion," J. Geophys. Res., Vol. 95, No. A11, pp. 19,123-19,129, November 1, 1990. Emery, B.A., A.D. Richmond, H.W. Kroehl, C.D. Wells, J.M. Ruohoniemi, M. Lester, D.J. Knipp, F.J. Rich, J.C. Foster, O. de la Beaujardière, C. Senior, L.M. Shier, J.F. McKee, and S. Maedo, "Electric Potential Patterns Deduced for the SUNDIAL Period of September 23-26, 1986," Ann. Geophys., Vol. 8, No. 6, pp. 399-408, 1990. Fejer, B.G., M.C. Kelley, C. Senior, O. de la Beaujardière, J.A. Holt, C.A. Tepley, R. Burnside, M.A. Abdu, J.H.A. Sobral, R.F. Woodman, Y. Kamide, and P. Lepping, "Low- and Mid-Latitude Ionospheric Electric Fields During the January 1984 GISMOS Campaign," J. Geophys. Res., Vol. 95, No. A3, pp. 2367-2377, 1990. Heelis, R.A., and J.F. Vickrey, "Magnetic Field-Aligned Coupling Effects on Ionospheric Plasma Structure," J. Geophys. Res., Vol. 95, No. A6, pp. 7995-8008, June 1, 1990. Johnson, R.M., "Lower-Thermospheric Neutral Winds at High Latitude Determined from Incoherent Scatter Measurements: A Review of Techniques and Observations," Adv. Space Res., Vol. 10, No. 6, pp. (6)261-(6)275, 1990. Knudsen, D.J., M.C. Kelley, G.D. Earle, J.F. Vickrey, and M. Boehm, "Distinguishing Alfvén Waves from Quasi-Static Field Structures Associated with the Discrete Aurora: Sounding Rocket and HILAT Satellite Measurements," Geophys. Res. Lett., Vol. 17, No. 7, pp. 921-924, June 1990. Lyons, L.R., O. de la Beaujardière, G. Rostoker, J.S. Murphree, and E. Friis- Christensen, "Analysis of Substorm Expansion and Surge Development," J. Geophys. Res., Vol. 95, No. A7, pp. 10,575-10,589, July 1, 1990. MacDougall, J.W., "Distribution of Irregularities in the Northern Polar Region Determined from HILAT Observations," Radio Sci., No. 2, pp. 115-124, March-April 1990. McHenry, M.A., C.R. Clauer, and E. Friis-Christensen, "Relationship of Solar Wind Parameters to Continuous, Dayside, High Latitude Traveling Ionospheric Convection Vortices," J. Geophys. Res., Vol. 95, No. A9, pp. 15,007-15,022, September 1, 1990. McHenry, M.A., C.R. Clauer, E. Friis-Christensen, P.T. Newell, and J.D. Kelly, "Ground Observations of Magnetospheric Boundary Layer Phenomena," J. Geophys. Res., Vol. 95, No. A9, pp. 14,995-15,005, September 1, 1990. Mendillo, M., "Sounding Rockets Explore the Ionosphere,"Aerospace America, Pub: American Institute of Aeronautics and Astronautics, pp. 38-41, Aug 1990. Moen, J., and A. Brekke, "On the Importance of Ion Composition to Conductivities in the Auroral Ionosphere," J. Geophys. Res., Vol. 95, No. A7, pp. 10,687-10,693, July 1, 1990. Raymund, T.D., J.R. Austen, S.J. Franke, C.H. Liu, J.A. Klobuchar, and J. Stalker, "Application of Computerized Tomography to the Investigation of Ionospheric Structures," Radio Sci., Vol. 25, No. 5, pp. 771-789, September/October 1990. Richmond, A.D., Y. Kamide, S.-I. Akasofu, D. Alcaydé, M. Blanc, O. de la Beaujardière, D.S. Evans, J.C. Foster, E. Friis-Christensen, J.M. Holt, R.J. Pellinen, C. Senior, and A.N. Zaitzev, "Global Measures of Ionospheric Electrodynamic Activity Inferred from Combined Incoherent Scatter Radar and Ground Magnetometer Observations," J. Geophys. Res., Vol. 95, No. A2, pp. 1061-1071, February 1, 1990. Robinson, R., and S. Mende, "Ionization and electric field properties of auroral arcs during magnetic quiescence," J. Geophys. Res., 95(A12), 21,111-21,121, 1990. Robinson, R.M., C.R. Clauer, O. de la Beaujardière, J.D. Kelly, E. Friis-Christensen, and M. Lockwood, "Sondrestrom and EISCAT Radar Observations of Poleward-moving Auroral Forms," J. Atmos. Terr. Phys., Vol. 52, No. 6-8, pp. 411-420, 1990. Robinson, R.M., and R.R. Vondrak, "Electrodynamic Properties of Auroral Surges," J. Geophys. Res., Vol. 95, No. A6, pp. 7819-7832, June 1, 1990. Senior, C., D. Fontaine, G. Caudal, D. Alcaydé, and J. Fontanari, "Convection Electric Fields and Electrostatic Potential over 61º-72º Invariant Latitude Observed with the European Incoherent Scatter Facility, 2. Statistical Results," Ann. Geophys., Vol. 8, No. 4, pp. 257-272, 1990. BACK TO TOP 1989 Crowley, G., B.A. Emery, R.G. Roble, H.C. Carlson, Jr., J.E. Salah, V.B. Wickwar, K.L. Miller, W.L. Oliver, R.G. Burnside, and F.A. Marcos, "Thermospheric Dynamics During September 18-19, 1984, 2. Validation of the NCAR Thermospheric General Circulation Model," J. Geophys. Res., Vol. 94, No. A12, pp. 16,945-16,959, 1989. Earle, G.D., M.C. Kelley, and G. Ganguli, "Large Velocity Shears and Associated Electrostatic Waves and Turbulence in the Auroral F Region," J. Geophys. Res., Vol. 94, No. A11, pp. 15,321-15,333, 1989. Foster, J.C., "Plasma Transport Through the Dayside Cleft: A Source of Ionization Patches in the Polar Cap," in Electromagnetic Coupling in the Polar Clefts and Caps, P.E. Sandholt and A. Egeland, Eds., Kluwer Academic Publishers, 1989. Foster, J.C., T. Turunen, P. Pollari, H. Kohl, and V.B. Wickwar, "Multi-Radar Mapping of Auroral Convection," Adv. Space Res., Vol. 9, No. 5, pp (5)19-(5)27, 1989. Hecht, J.H., A.B. Christensen, D.J. Strickland, and R.R. Meier, "Deducing Composition and Incident Electron Spectra From Ground-Based Auroral Optical Measurements: Variations in Oxygen Density," J. Geophys. Res., Vol. 94, No. A10, pp. 13,553-13,563, 1989. Heikkila, W.J, T. Stockflet Jørgensen, L.J. Lanzerotti, and C.G. Maclennan, "A Transient Auroral Event on the Dayside," J. Geophys. Res., Vol. 94, No. A11, pp. 15,291-15,305, 1989. Knipp, D.J., A.D. Richmond, G. Crowley, O. de la Beaujardière, E. Friis-Christensen, D.S. Evans, J.C. Foster, I.W. McCrea, F.J. Rich, and J.A. Waldock, "Electrodynamic Patterns for September 19, 1984," J. Geophys. Res., Vol. 94, No. A12, pp. 16,913-16,923, 1989. LaBelle, J., R.J. Sica, C. Kletzing, G.D. Earle, M.C. Kelley, D. Lummerzheim, R.B. Torbert, K.D. Baker, and G. Berg, "Ionization from Soft Electron Precipitation in the Auroral F Region," J. Geophys. Res., Vol. 94, No. A4, pp. 3791-3798, 1989. Larsen, M.F., I.S. Mikkelsen, J.W. Meriwether, R. Niciejewski, and K. Vickery, "Simultaneous Observations of Neutral Winds and Electric Fields at Spaced Locations in the Dawn Auroral Oval," J. Geophys. Res., Vol. 94, No. A12, pp. 17,235-17,243, December 1, 1989. Meier, R.R., D.J. Strickland, J.H. Hecht, and A.B. Christensen, "Deducting Composition and Incident Electron Spectra From Ground-Based Auroral Optical Measurements: A Study of Auroral Red Line Processes," J. Geophys. Res., Vol. 94, No. A10, pp. 13,541-13,552, 1989. Niciejewski, R.J., J.W. Meriwether, A. Vallance Jones, R.L. Gattinger, C.E. Valladares, V.B. Wickwar, and J. Kelly, "Ground-Based Observations of O2+ 1N Band Enhancements Relative to N2+ 1N Band Emission," Planet. Space Sci., Vol. 37, No. 2, pp. 131-143, 1989. Niciejewski, R.J., J.W. Meriwether, F.G. McCormac, J.H. Hecht, A.B. Christensen, G.G. Sivjee, D.J. Strickland, G. Swenson, S.B. Mende, A. Vallance Jones, R.L. Gattinger, H.C. Carlson, and C.E. Valladares, "Coordinated Satellite and Ground-Based Measurements of the Energy Characteristics of a Sun-Aligned Arc Over Sondre Stromfjord," J. Geophys. Res., Vol. 94, No. A12, pp. 17,201-17,213, December 1, 1989. Robinson, R.M., R.R. Vondrak, J.D. Craven, L.A. Frank, and K. Miller, "A Comparison of Ionospheric Conductances and Auroral Luminosities Observed Simultaneously with the Chatanika Radar and the DE-1 Auroral Imagers," J. Geophys. Res., Vol. 94, No. A5, pp. 5382-5296, 1989. Ruohoniemi, J.M., R.A. Greenwald, K.B. Baker, J.P. Villain, C. Hanuise, and J. Kelly, "Mapping High-Latitude Plasma Convection with Coherent HF Radars," J. Geophys. Res., Vol. 94, No. A10, pp. 13,463-13,477, 1989. Tsunoda,R.T., R.C. Livingston, J.F. Vickrey, R.A. Heelis, W.B. Hanson, F.J. Rich, and P.F. Bythrow, "Dayside Observations of Thermal-Ion Upwellings at 800-km Altitude: An Ionospheric Signature of the Cleft Ion Fountain," J. Geophys. Res., Vol. 94, No. A11, pp. 15,277-15,290, 1989. Weber, E.J., M.C. Kelley, J.O. Ballenthin, S.Basu, H.C. Carlson, J.R. Fleischman, D.A. Hardy, N.C. Maynard, R.F. Pfaff, P. Rodriguez, R.E. Sheehan, and M. Smiddy, "Rocket Measurements Within a Polar Cap Arc: Plasma, Particle, and Electric Circuit Parameters," J. Geophys. Res., Vol. 94, No. A6, pp. 6692-6712, 1989. BACK TO TOP 1988 Clauer, C.L. and E. Friis-Christensen, "High-Latitude Dayside Electric Fields and Currents During Strong Northward Interplanetary Magnetic Field: Observations and Model Simulation," J. Geophys. Res., Vol. 93, No. A4, pp. 2749-2757, 1988. Friis-Christensen, E., M.A. McHenry, C.R. Clauer, and S. Vennerstrøm, "Ionospheric Traveling Convection Vortices Observed near the Polar Cleft: A Triggered Response to Sudden Changes in the Solar Wind," Geophys. Res. Lett., Vol. 15, No. 3, pp. 253-256, 1988. Hagan, M.E., and J.E. Salah, "Effects of Geomagnetic Activity in the Winter Thermosphere, 1. Magnetically Undisturbed Conditions," J. Geophys. Res., Vol. 93, No. A9, pp. 9927-9935, 1988. Hunsucker, R.D., and J.K. Hargreaves, "A Study of Gravity Waves in Ionospheric Electron Content at L=4," J. Atmos. Terr. Phys., Vol. 50, No. 2, pp. 167-172, 1988. Kelley, M.C., and G.D. Earle, "Upper Hybrid and Langmuir Turbulence in the Auroral E Region," J. Geophys. Res., Vol. 93, No. A3, pp. 1993-1996, 1988. McHenry, M.A., C.R. Clauer, E. Friis-Christensen, and J.D. Kelly, "Observations of Ionospheric Convection Vortices: Signatures of Momentum Transfer," Adv. Space Res., Vol. 8, No. 9-10, pp. (9)315-(9)320, 1988. Mende, S.B., J.H. Doolittle, R.M. Robinson, R.R. Vondrak, and F.J. Rich, "Plasma Drifts Associated with a System of Sun-Aligned Arcs in the Polar Cap," J. Geophys. Res., Vol. 93, No. A1, pp. 256-264, 1988. Meriwether, J.W., T.L. Killeen, F.G. McCormac, A.G. Burns, and R.G. Roble, "Thermospheric Winds in the Geomagnetic Polar Cap for Solar Minimum Conditions," J. Geophys. Res., Vol. 93, No. A7, pp. 7478-7492, 1988. Oliver, W.E., and J.E. Salah, "The Global Thermospheric Mapping Study," J. Geophys. Res., Vol. 93, No. A5, pp. 4039-4059, 1988. Pollock, C.J., R.L. Arnoldy, R.E. Erlandson, and L.J. Cahill, "Observations of the Plasma Environment During an Active Ionospheric Ion Beam," J. Geophys. Res., Vol. 93, No. A10, pp. 11,473-11,493, 1988. Rasmussen, C.E., R.W. Schunk, and V.B. Wickwar, "A Photochemical Equilibrium Model for Ionospheric Conductivity," J. Geophys. Res., Vol. 93, No. A9, pp. 9831-9840, 1988. Rasmussen, C.E., J.J. Sojka, R.W. Schunk, V.B. Wickwar, O. de la Beaujardi ére, J. Foster, and J. Holt, "Comparison of Simultaneous Chatanika and Millstone Hill Temperature Measurements with Ionospheric Model Predictions," J. Geophys. Res., Vol. 93, No. A3, pp. 1922-1932, 1988. Rice, D.D., R.D. Hunsucker, L.J. Lanzerotti, G. Crowley, P.J.S. Williams, J.D. Craven, and L. Frank, "An Observation of Atmospheric Gravity Wave Cause and Effect During the October 1985 WAGS Campaign," Radio Sci., Vol. 23, No. 6, pp. 919-930, 1988. Richmond, A.D., Y. Kamide, B.-H. Ahn, S.-I. Akasofu, D. Alcaydé, M. Blanc, O. de la Beaujardière, D.S. Evans, J.C. Foster, E. Friis-Christensen, R.J. Fuller-Rowell, J.M. Holt, D. Knipp, H.W. Kroehl, R.P. Lepping, R.J. Pellinen, C. Senior, and A.N. Zaitzev, "Mapping Electrodynamic Features of the High-Latitude Ionosphere from Localized Observations: Combined Incoherent-Scatter Radar and Magnetometer Measurements for January 18-19, 1984," J. Geophys. Res., Vol. 93, No. A6, pp. 5760-5776, 1988. Robinson, R.M., R.R. Vondrak, D. Hardy, M.S. Gussenhoven, T.A. Potemra, and P.F. Bythrow, "Electrodynamics of Very High Latitude Arcs in the Morning Sector Auroral Zone," J. Geophys. Res., Vol. 93, No. A2, pp. 913-922, 1988. Sheen, D.R., and C.H. Liu, "Modeling F Region Gravity Waves Observed During the WAGS Campaign, 2. Background Wave Spectra," Radio Sci., Vol. 23, No. 6, pp. 894-904, 1988. Sheen, D.R., and C.H. Liu, "Modeling F Region Gravity Waves Observed During the WAGS Campaign, 1. Special Event," Radio Sci., Vol. 23, No. 6, pp. 879-893, 1988. Sica, R.J., R.W. Schunk, and C.E. Rasmussen, "Can the High Latitude Ionosphere Support Large Field-Aligned Ion Drifts?" J. Atmos. Terr. Phys., Vol. 50, No. 2, pp. 141-152, 1988. Tsunoda, R.T., "High-Latitude F Region Irregularities: A Review and Synthesis," Revs. Geophys., Vol. 26, No. 4, pp. 719-760, 1988. Valladares, C.E., M.C. Kelley, and J.F. Vickrey, "Plasma Line Observations in the Auroral Oval," J. Geophys. Res., Vol. 93, No. A3, pp. 1997-2003, 1988. BACK TO TOP 1987 Basinka, E.M., W.J. Burke, S. Basu, F.J. Rich, and P.F. Fougere, "Low-Frequency Modulation of Plasmas and Soft Electron Precipitation Near the Dayside Cusp," J. Geophys. Res., Vol. 92, No. A4, pp. 3304-3314, 1987. Basu, J.R. Jasperse, R.M. Robinson, R.R. Vondrak, and D.S. Evans, "Linear Transport Theory of Auroral Proton Precipitation: A Comparison with Observations," J. Geophys. Res., Vol. 92, No. A6, pp. 5920-5932, 1987. Bering, E.A., III, and J.R. Benbrook, "Conjugate Ionospheric Electric Field Measurements," Ann. Geophys., Vol. 5A, No. 6, pp. 484-502, 1987. de la Beaujardière, O., D.S. Evans, Y. Kamide, and R.P. Lepping, "Response of Auroral Oval Precipitation and Magnetospheric Convection to Changes in the Interplanetary Magnetic Field," Ann. Geophys., Vol. 5A, No. 6, pp. 519-526, 1987. Earle G.D., and M.C. Kelley, "Spectral Studies of the Sources of Ionospheric Electric Fields," J. Geophys. Res., Vol. 92, No. A1, pp. 213-224, 1987. Erlandson, R.E., L.J. Cahill, Jr., C.J. Pollock, R.L. Arnoldy, W.A. Scales, and P.M. Kintner, "Initial Results from the Operation of Two Argon Ion Generators in the Auroral Ionosphere," J. Geophys. Res., Vol. 92, No. A5, pp. 4601-4616, 1987. Hecht, J.H., R.L. Walterscheid, G.G. Sivjee, A.B. Christensen, and J.B. Pranke, "Observations of Wave-Driven Fluctuations of OH Nightglow Emission from Sondre Stromfjord, Greenland," J. Geophys. Res., Vol. 92, No. A6, pp. 6091-6099, 1987. Johnson, R.M., V.B. Wickwar, R.G. Roble, and J.G. Luhmann, "Lower-Thermospheric Winds at High Latitude: Chatanika Radar Observations," Ann. Geophys., Vol. 5A, No. 6, pp. 383-404, 1987. Jørgensen, T.S., K. Lassen, W.J. Heikkila, V.B. Wickwar, and G. Haerendel, "A Substorm Resulting from Energy Storage in the Magnetosphere," Ann. Geophys., Vol. 5A, No. 6, pp. 511-518, 1987. Lanzerotti, L.J., R.D. Hunsucker, D. Rice, C.G. Maclennan, L.V. Medford, and A. Wolfe, "Studies of a Cusp-Region Hydromagnetic Wave Event with Magnetometers and Incoherent Scatter Radar," Ann. Geophys., Vol. 5A, No. 6, pp. 479-484, 1987. Lanzerotti, L.J., R.D. Hunsucker, D. Rice, L.C. Lee, A. Wolfe, C.G. Maclennan, and L.V. Medford, "Ionosphere and Ground-Based Response to Field-Aligned Currents near the Magnetospheric Cusp Regions," J. Geophys. Res., Vol. 92, No. A7, pp. 7739-7743, 1987. McCormac, F.G., T.L. Kileen, J.P. Thayer, G. Hernandez, C.R. Tschan, J.-J. Ponthieu, and N.W. Spencer, "Circulation of the polar thermosphere during geomagnetically quiet and active times as observed by dynamics explorer 2," J. Geophys. Res., Vol. 92, pp. 10133-10139, 1987. Meriwether, J.W., and P. Shih, "On the Nighttime Signatures of Thermospheric Winds Observed at Sondrestrom, Greenland, as Correlated with Interplanetary Magnetic Field Parameters," Ann. Geophys., Vol. 5A, No. 6, pp. 329-336, 1987. Mikkelsen, I.S., M.F. Larsen, M.C. Kelley, J. Vickrey, E. Friis-Christensen, J. Meriwether, and P. Shih, "Simultaneous Measurements of the Thermospheric Wind Profile at Three Separate Positions in the Dusk Auroral Oval," J. Geophys. Res., Vol. 92, No. A5, pp. 4639-4648, 1987. Robinson, R.M., R.R. Vondrak, and E. Friis-Christensen, "Ionospheric Currents Associated with a Sun-Aligned Arc Connected to the Auroral Oval," Geophys. Res. Lett., Vol. 14, No. 6, pp. 656-659, 1987. Robinson, R.M.,R.R. Vondrak, K. Miller, T. Dabbs, and D. Hardy, "On Calculating Ionospheric Conductances from the Flux and Energy of Precipitating Electrons," J. Geophys. Res., Vol. 92, No. A3, pp. 2565-2569, 1987. Ruohoniemi, J.M., R.A. Greenwald, K.B. Baker, J.P. Villain, and M.A. McCready, "Drift Motions of Small-Scale Irregularities in the High-Latitude F Region: An Experimental Comparison with Plasma Drift Motion," J. Geophys. Res., Vol. 92, No. A5, pp. 4553-4564, 1987. Schunk, R.W., "Interactions Between the Polar Ionosphere and Thermosphere," Physica Scripta, Vol. T18, pp. 256-275, 1987. Senior, C., and M. Blanc, "Convection in the Inner Magnetosphere: Model Predictions and Data," Ann. Geophys., Vol. 5A, No. 6, pp. 405-420, 1987. Senior, C., J.R. Sharber, O. de la Beaujardière, R.A. Heelis, D.S. Evans, J.D. Winningham, M. Sugiura, and W.R. Hoegy, "E and F Region Study of the Evening Sector Auroral Oval: A Chatanika/Dynamics Explorer 2/NOAA 6 Comparison," J. Geophys. Res., Vol. 92, No. A3, pp. 2477-2494, 1987. Vallance-Jones A., R.L. Gattinger, P. Shih, J.W. Meriwether, V.B. Wickwar, and J.D. Kelly, "Optical and Radar Characterization of a Short-Lived Auroral Event at High Latitude," J. Geophys. Res., Vol. 92, No. A5, pp. 4575-4589, 1987. BACK TO TOP 1986 Cahill, L.J. Jr., R.L. Arnoldy, D. Behm, and M.A. McCready, "An Auroral Arc in the Late Evening Plasma Flow Reversal," J. Geophys. Res., Vol. 91, No. A2, pp. 1585-1597, 1986. Clauer C.R., and P.M. Banks, "Relationship of the Interplanetary Electric Field to the High-Latitude Ionospheric Electric Field and Currents: Observations and Model Simulation," J. Geophys. Res., Vol. 91, No. A6, pp. 6959-6971, 1986. Clauer, C.R., "Field-Aligned Currents and Ionospheric Electric Fields in the Vicinity of the Dayside Polar Cleft: Observations and Simulations," Proceedings of the Finnish-American Auroral Workshop, E. Turunen and E. Kataja, Eds., Report No. 45, 1986. de la Beaujardière, O., and V.B. Wickwar, "IMF Control of Plasma Drift, Ion Temperature and Neutral Wind," Proceedings of the Finnish-American Auroral Workshop, E. Turunen and E. Kataja, Eds., Report No. 45, 1986. de la Beaujardière, O., V.B. Wickwar, and J.H. King, "Sondrestrom Radar Observations of the Effect of the IMF By Component on Polar Cap Convection," Solar Wind-Magnetosphere Coupling, Y. Kamide and J.A. Slavin, Eds., pp. 495-505, Terra Scientific Publishing Company, Tokyo, 1986. Friis-Christensen, E., "Solar Wind Control of the Polar Cusp," Solar Wind-Magnetosphere Coupling, Y. Kamide and J.A. Slavin, Eds., pp. 423-440, Terra Scientific Publishing Company, Tokyo, 1986. Green, J.L., J.H. Waite, Jr., C.R. Chappell, M.O. Chandler, J.R. Doupnik, P.G. Richards, R. Heelis, S.D. Shawhan, and L.H. Brace, "Observations of Ionospheric Magnetospheric Coupling: DE and Chatanika Coincidences," J. Geophys. Res., Vol. 91, No. A5, pp. 5803-5815, 1986. Ølesen, J.K., P. Stauning, and R.T. Tsunoda, "On a Unified Interpretation of the Polar Slant E Condition (SEC) and Other High E Field Related Phenomena," Radio Sci., Vol. 21, No. 1, pp. 127-140, 1986. Rasmussen, C.E., R.W. Schunk, J.J. Sojka, V.B. Wickwar, O. de la Beaujardière, J. Foster, J. Holt, D.S. Evans, and E. Nielsen, "Comparison of Simultaneous Chatanika and Millstone Hill Observations with Ionospheric Model Predictions," J. Geophys. Res., Vol. 91, No. A6, pp. 6986-6998, 1986. Robinson, R.M., C.R. Clauer, O. de la Beaujardière, J.D. Kelly, and D.S. Evans, "IMF By Control of Ionization and Electric Fields Measured by the Sondrestrom Radar," Solar Wind-Magnetosphere Coupling, Y. Kamide and J.A. Slavin, Eds., pp. 507-518, Terra Scientific Publishing Company, Tokyo, 1986. Sojka, J.J., and R.W. Schunk, "A Theoretical Study of the Production and Decay of Localized Electron Density Enhancements in the Polar Ionosphere," J. Geophys. Res., Vol. 91, No. A3, pp. 3245-3253, 1986. Sojka, J.J., and R.W. Schunk, "Problems With Deducing Ionospheric Plasma Convection Patterns," J. Geophys. Res., Vol. 91, No. A1, pp. 259-269, 1986. Weber, E.J., J.A. Klobuchar, J. Buchau, H.C. Carlson, Jr., R.C. Livingston, O. de la Beaujardière, M. McCready, J.G. Moore, and G.J. Bishop, "Polar Cap F Layer Patches: Structure and Dynamics," J. Geophys. Res., Vol. 91, No. A11, pp. 12,121-12,129, 1986. BACK TO TOP 1985 Carlson, H.C., Jr., T.L. Killeen, R. Heelis, A. Egeland, J.D. Kelly, D.J. McEwen, and T.J. Rosenberg, "Future Cusp Experiments and their Coordination," in The Polar Cusp, J.A. Holtet and A. Egeland, Eds., NATO ASI Series C: Mathematical and Physical Sciences, Vol. 145, pp. 397-410, D. Reidel Publishing Co., 1985. de la Beaujardière, O., J.C., V.B. Wickwar, G. Caudal, J.M. Holt, J.D. Craven, L.A. Frank, L.H. Brace, D.S. Evans, J.D. Winningham, and R.A. Heelis, "Universal Time Dependence of Nighttime F Region Densities at High Latitudes," J. Geophys. Res., Vol. 90, No. A5, pp. 4319-4332, 1985, and Correction in J. Geophys. Res., Vol. 91, No. A1, pp. 381-382, 1985. de la Beaujardière, O., V.B. Wickwar, J.D. Kelly, and J.H. King, "Effect of the Interplanetary Magnetic Field Y Component on the High-Latitude Nightside Convection," Geophys. Res. Lett., Vol. 12, No. 7, pp. 461-464, 1985. Foster, J.C., J.M. Holt, J.D. Kelly, and V.B. Wickwar, "High-Resolution Observations of Electric Fields and F Region Plasma Parameters in the Cleft Ionosphere," in The Polar Cusp, J.A. Holtet and A. Egeland, Eds., NATO ASI Series C: Mathematical and Physical Sciences, Vol. 145, pp. 349-364, D. Reidel Publishing Co., 1985. Kaufmann, R.L., R.L. Arnoldy, T.E. Moore, P.M. Kintner, L.J. Cahill, Jr., and D.N. Walker, "Heavy Ion Beam-Ionosphere Interactions: Electron Acceleration," J. Geophys. Res., Vol. 90, No. A10, pp. 9595-9614, 1985. Kelley, M., R. Livingston, and M. McCready, "Large Amplitude Thermospheric Oscillations Induced by an Earthquake," Geophys. Res. Lett., Vol. 12, No. 9, pp. 577-580, 1985. Kelly, J.D., R.T. Tsunoda, J.K. Ølesen and P. Stauning, "On the Relationship of F Region Structure in the Dayside Auroral Oval to HF Backscatter Signatures Attributed to the Polar Cusp," in Propagation Effects on Military Systems in the High Latitude Region, [Proceedings of the 36th Symposium of the Electromagnetic Wave Propagation Panel held (Fairbanks, Alaska) 3-7 June 1985] H. Soicher, Ed., pp. 4.4-1 to 4.4-10, Specialized Printing Services Limited, November 1985. Kelly, J.D., "Incoherent-Scatter Radar Observations of the Cusp," in The Polar Cusp, J.A. Holtet and A. Egeland, Eds., NATO ASI Series C: Mathematical and Physical Sciences, Vol. 145, pp. 337-348, D. Reidel Publishing Co., 1985. Reese, M.H., and G.J. Romick, "Atomic Nitrogen in Aurora: Production, Chemistry and Optical Emissions," J. Geophys. Res., Vol. 90, No. A10, pp. 9871-9879, 1985. Robinson, R.M., S.B. Mende, R.R. Vondrak, J.U. Kozyra, and A.F. Nagy, "Radar and Photometric Measurements of an Intense Type A Red Aurora," J. Geophys. Res., Vol. 90, No. A1, pp. 457-466, 1985. Robinson, R.M., and R.R. Vondrak, "Characteristics and Sources of Ionization in the Continuous Aurora," Radio Sci., Vol. 20, No. 3, pp. 447-455, 1985. Robinson, R.M., F. Rich, and R.R. Vondrak, "Chatanika Radar and S3-2 Measurements of Auroral Zone Electrodynamics in the Midnight Sector," J. Geophys. Res., Vol. 90, No. A9, pp. 8487-8499, 1985. Robinson, R.M., R.R. Vondrak, and T.A. Potemra, "Auroral Zone Conductivities within the Field-Aligned Current Sheets," J. Geophys. Res., Vol. 90, No. A10, pp. 9688-9696, 1985. Robinson, R.M., R.T. Tsunoda, J.F. Vickrey, and L. Guerin, "Sources of F Region Ionization Enhancements in the Nighttime Auroral Zone," J. Geophys. Res., Vol. 90, No. A8, pp. 7533-7546, 1985. Sojka, J.J., and R.W. Schunk, "Theoretical Study of Anomalously High F Region Peak Altitudes in the Polar Ionosphere," J. Geophys. Res., Vol. 90, No. A8, pp. 7525-7532, 1985. Stauning, P., J.K. ¯lesen, and R.T. Tsunoda, "Observations of the Unstable E Region in the Polar Cusp," in The Polar Cusp, J.A. Holtet and A. Egeland, Eds., NATO ASI Series C: Mathematical and Physical Sciences, Vol. 145, pp. 365-376, D. Reidel Publishing Co., 1985. Vondrak, R., and R. Robinson, "Inference of High-Latitude Ionization and Conductivity from AE-C Measurements of Auroral Electron Fluxes," J. Geophys. Res., Vol. 90, No. A8, pp. 7505-7512, 1985. Weber E.J., and J. Buchau, "Observations of Plasma Structure and Transport at High Latitudes," in The Polar Cusp, J.A. Holtet and A. Egeland, Eds., NATO ASI Series C: Mathematical and Physical Sciences, Vol. 145, pp. 279-292, D. Reidel Publishing Co., 1985. Weber, E.J., R.T. Tsunoda, J. Buchau, R.E. Sheehan, D.J. Strickland, W. Whiting, and J.G. Moore, "Coordinated Measurements of Auroral Zone Plasma Enhancements," J. Geophys. Res., Vol. 90, No. A7, pp. 6497-6513, 1985. Yasuhara, F., Y. Kamide, and J.F. Vickrey, "On the Efficiency of the Cowling Mechanism in the Auroral Electrojet," Geophys. Res. Lett., Vol. 12, No. 6, pp. 389-392, 1985. BACK TO TOP 1984 Carlson, Jr., H.C., V.B. Wickwar, E.J. Weber, J. Buchau, J.G. Moore, and W. Whiting, "Plasma Characteristics of Polar Cap F Layer Arcs," Geophys. Res. Lett., Vol. 11, No. 9, pp. 895-898, 1984. Caudal, G., O. de la Beaujardière, D. Alcaydé, J. Holt, and G. Lejeune, "Simultaneous Measurements of the Electrodynamic Parameters of the Auroral Ionosphere by the EISCAT, Chatanika, and Millstone Hill Radars," Ann. Geophys., Vol. 2, pp. 369-376, 1984. Clauer, C.R., P.M. Banks, A.Q. Smith, T.S. Jørgensen, E. Friis-Christensen, S. Vennerstrøm, V.B. Wickwar, J.D. Kelly, and J. Doupnik, "Observation of Interplanetary Magnetic Field and of Ionospheric Plasma Convection in the Vicinity of the Dayside Polar Cleft," Geophys. Res. Lett., Vol. 11, No. 9, pp. 891-894, 1984. de la Beaujardière, O., and R.A. Heelis, "Velocity Spike at the Poleward Edge of the Auroral Zone," J. Geophys. Res., Vol. 89, No. A3, pp. 1627-1634, 1984. de la Beaujardière, O., V.B. Wickwar, M.J. Baron, J. Holt, R.M. Wand, W.L. Oliver, P. Bauer, M. Blanc, C. Senior, D. Alcaydé, G. Caudal, J. Foster, E. Nielsen, and R. Heelis, "MITHRAS: A Brief Description," Radio Sci., Vol. 19, No. 2, pp. 665-673, 1984. Duboin, M.L., and Y. Kamide, "Latitudinal Variations of Joule Heating Due to the Auroral Electrojets," J. Geophys. Res., Vol. 89, No. A1, pp. 245-251, 1984. Foster, J.C., "Ionospheric Signatures of Magnetospheric Convection," J. Geophys. Res., Vol. 89, No. A2, pp. 855-865, 1984. Foster, J.C., and J.R. Doupnik, "Plasma Convection in the Vicinity of the Dayside Cleft," J. Geophys. Res., Vol. 89, No. A10, pp. 9107-9113, 1984. Herero, F.A., G.H. Mayr, I. Harris, F. Varosi, and J.W. Meriwether, "Thermospheric Gravity Waves Near the Source: Comparison of Variations in Neutral Temperature and Vertical Velocity at Sondre Stromfjord," Geophys. Res. Lett., Vol. 11, No. 9, pp. 939-942, 1984. Jørgensen, T.S., E. Friis-Christensen, V.B. Wickwar, J.D. Kelly, C.R. Clauer, and P.M. Banks, "On the Reversal from `Sunward' to `Antisunward' Plasma Convection in the Dayside High Latitude Ionosphere," Geophys. Res. Lett., Vol. 11, No. 9, pp. 887-890, 1984. Kamide, Y., R.M. Robinson, S.-I. Akasofu, and T.A. Potemra, "Aurora and Electrojet Configuration in the Early Morning Sector," J. Geophys. Res., Vol. 89, No. A1, pp. 389-393, 1984. Kelly, J.D., and J.F. Vickrey, "F Region Ionospheric Structure Associated with Antisunward Flow Near the Dayside Polar Cusp," Geophys. Res. Lett., Vol. 11, No. 9, pp. 907-910, 1984. Kofman, W., and V.B. Wickwar, "Very High Electron Temperatures in the Daytime F Region at Sondrestrom," Geophys. Res. Lett., Vol. 11, No. 9, pp. 919-922, 1984. Mende, S.B., R.H. Eather, M.H. Rees, R.R. Vondrak, and R.M. Robinson, "Optical Mapping of Ionospheric Conductance," J. Geophys. Res., Vol. 89, No. A3, pp. 1755-1763, 1984. Meriwether, J.W., P. Shih, T.L. Killeen, V.B. Wickwar, and R.G. Roble, "Nighttime Thermospheric Winds Over Sondre Stromfjord, Greenland," Geophys. Res. Lett., Vol. 11, No. 9, pp. 931-935, 1984. Murdin, J., J.J. Sojka, and R.W. Schunk, "Diurnal Transport Effects on the F Region Plasma at Chatanika Under Quiet and Disturbed Conditions," Planet. Space Sci., Vol. 32, No. 1, pp. 47-61, 1984. Oliver, W.L., J.C. Foster, J.M. Holt, G.B. Loriot, V.B. Wickwar, J.D. Kelly, O. de la Beaujardière, P.F. Bythrow, C.I. Meng, F.J. Rich, and R.E. Huffman, "Initial Millstone Hill, Sondrestrom, and HILAT Observations of Thermospheric Temperatures and Frictional Heating," Geophys. Res. Lett., Vol. 11, No. 9, pp. 911-914, 1984. Rees, M.H,, and V.J. Abreu, "Auroral Photometry from the Atmosphere Explorer Satellite," J. Geophys. Res., Vol. 89, No. A1, pp. 317-326, 1984. Robinson, R.M., "Kp Dependence of Auroral Zone Field-Aligned Current Intensity," J. Geophys. Res., Vol. 89, No. A3, pp. 1743-1748, 1984. Robinson, R.M., and R.R. Vondrak, "Measurements of E Region Ionization and Conductivity Produced by Solar Illumination at High Latitudes," J. Geophys. Res., Vol. 89, No. A6, pp. 3951-3956, 1984. Robinson, R.M., D.S. Evans, T.A. Potemra, and J.D. Kelly, "Radar and Satellite Measurements of an F Region Ionization Enhancement in the Post-Noon Sector," Geophys. Res. Lett., Vol. 11, No. 9, pp. 899-902, 1984. Springer, K., and A. Grafe, "Radio Aurora Observations at Medium Latitudes over Two Solar Cycles," J. Atmos. Terr. Phys., Vol. 46, No. 8, pp. 673-684, 1984. Stauning, P., "Absorption of Cosmic Noise in the E Region During Electron Heating Events: A New Class of Riometer Absorption Events," Geophys. Res. Lett., Vol. 11, No. 12, pp. 1184-1187, 1984. Vennerstrøm, V., E. Friis-Christensen, T.S. Jørgensen, O. Rasmussen, C.R. Clauer, and V.B. Wickwar, "Ionospheric Currents and F Region Plasma Boundaries Near the Dayside Cusp," Geophys. Res. Lett., Vol. 11, No. 9, pp. 903-906, 1984. Villain, J.P., R.A. Greenwald, and J.F. Vickrey, "HF Ray Tracing at High Latitudes Using Measured Meridional Electron Density Distributions," Radio Sci., Vol. 19, No. 1, pp. 359-374, 1984. Wickwar, V.B., "Thermospheric Neutral Wind at -39_ Azimuth During the Daytime Sector at Sondrestrom," Geophys. Res. Lett., Vol. 11, No. 9, pp. 927-930, 1984. Wickwar, V.B., and J.W. Meriwether, "The Polar Ionosphere: Editorial," Geophys. Res. Lett., Vol. 11, No. 9, pp. 881-882, 1984. Wickwar, V.B., and W. Kofman, "Dayside Red Auroras at Very High Latitudes: The Importance of Thermal Excitation," Geophys. Res. Lett., Vol. 11, No. 9, pp. 923-926, 1984. | ||