
			 ***************************
			 **   THE GEM MESSENGER   **
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						     Volume 8, Number 7
						     April 17, 1998

---------------------
Boundary Layer Papers
---------------------
TO:  Participants in all three working groups of the Boundary Layer Campaign
FROM:  Nancy Crooker (CROOKER at buasta.bu.edu)

In preparing a bibliography for BL WG3's contribution to the GEM 5-year 
report, I sent out a message requesting references to publications that 
were influenced by WG3's activities.  Because the excellent response 
included papers that were also influenced by WG2 and WG1, it being 
difficult to separate them in many cases, I am now compiling a composite
bibliography for the entire Boundary Layer Campaign.  Below is a draft 
based on the response I received combined with a list of WG1 papers from 
Larry Lyons.  Please check to make sure that your publications are listed 
and send me any that are missing.  If appropriate, remember to include your
papers in the AGU monograph, Physics of the Magnetopause, and the special 
issue of JGR devoted to the subject (May 1995).  Thanks!

BIBLIOGRAPHY:  GEM BOUNDARY LAYER CAMPAIGN, 1990-1998

Baker , K. B., A. S. Rodger, and G. Lu, HF-radar observations of the 
dayside merging rate:  A Geospace Environment Modeling boundary layer 
campaign study, J. Geophys. Res., 102, 9603, 1997. 

Baker , K. B., J. R. Dudeney, R. A. Greenwald, M. Pinnock, P. T. Newell, 
A. S. Rodger, and C.-I. Meng, HF-radar signatures of the cusp and the low-
latitude boundary layer, J. Geophys. Res., 100, 7671, 1995.

Blanchard, G. T., L. R. Lyons, and J. C. Samson, Accuracy of using 6300 A 
auroral emission to identify the magnetic separatrix on the nightside of 
the Earth, J. Geophys. Res., 102, 9697, 1997a. 

Blanchard, G. T., L. R. Lyons, and O. de la Beaujardiere, Magnetotail 
reconnection during magnetospheric substorms, J. Geophys. Res., 102, 
24,303, 1997b. 

Blanchard, G. T., L. R. Lyons, J. C. Samson, and F. J. Rich, Locating the 
polar cap boundary from observations of 6300 A auroral emission, J. 
Geophys. Res., 100, 7855, 1995. 

Blanchard, G. T., L. R. Lyons, O. de la Beaujardiere, R. A. Doe, and M. 
Mendillo, Measurement of the magnetotail reconnection rate, J. Geophys. 
Res., 101, 15,265, 1996. 

Boyle, C. B., P. H. Reiff, and M. R. Hairston, Empirical polar cap 
potentials, J. Geophys. Res., 102, 111, 1997.

Bristow, W.A., D.G. Sibeck, C. Jacquey, R.A. Greenwald, G.J. Sofko, T. 
Mukai, T. Yamamoto, S. Kokubun, T.J. Hughes, W.J. Hughes, E. Zesta, and 
M.J. Engebretson, Observations of convection vortices using the SuperDARN 
HF radars, J. Geophys. Res., 100, 19743, 1995.

Clauer, C. R. and A. J. Ridley, Ionospheric observations of magnetospheric 
low latitude boundary layer waves on August 4, 1991, J. Geophys. Res., 100, 
21873-21884, 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. 

Clauer, C. R., A. J. Ridley, R. J. Sitar, H. J. Singer, A. S. Rodger, E. 
Friis-Christensen, and V. O. Papitashvili  Field-line resonant pulsations 
associated with a strong dayside ionospheric shear convection flow 
reversal, J. Geophys. Res., 102, 4585-4596, 1997.

Crooker, N. U., and F. R. Toffoletto, Global aspects of magnetopause-
ionosphere coupling:  Review and synthesis, in Physics of the Magnetopause, 
Geophys. Monogr. Ser., vol. 90, edited by P. Song, B. U. …. Sonnerup, and 
M. Thomsen, pp. 363-370, AGU, Washington, 1995.

de la Beaujardiere, O., L R. Lyons, E. Friis-Christensen, Sondrestrom 
radar measurements of the reconnection electric field, J. Geophys. Res., 
96, 13,907, 1991. 
Dear Chris and Larry,

Ding, C., Analytical and Numerical Modeling of the Electromagnetic  
Structure of Geospace, Ph.D. thesis, Rice University, April 1995.

Ding, C., T. W. Hill, and F. R. Toffoletto, Magnetic mapping and Birkeland 
currents in the Toffoletto-Hill and Tsyganenko magnetosphere models, J. 
Geophys. Res., 99, 17,343, 1994.

Ding, C., T. W. Hill, and F. R. Toffoletto, Improvement of the Toffoletto-
Hill open magnetosphere model, in Physics of Space Plasmas (1995), Number 
14, (T. Chang and J. R. Jasperse, eds.), MIT Center for Theoretical 
Geo/Cosmo Plasma Physics, Cambridge, MA, p. 639, 1996a.

Ding, C., T. W. Hill, and B. Ramaswamy, Modeling and mapping of electric 
potential on closed field lines, in Physics of Space Plasmas (1995), Number 
14, (T. Chang and J. R. Jasperse, eds.), MIT Center for Theoretical 
Geo/Cosmo Plasma Physics, Cambridge, MA, p. 645, 1996b.

Drakou, E., B. U. O. Sonnerup, and W. Lotko, Self-consistent steady-state 
model of the low-latitude boundary layer, J. Geophys. Res., 99 2351, 1994.

Dyrud, L.P., M.J. Engebretson, J.L. Posch, W.J. Hughes, H. Fukunishi, R.L. 
Arnoldy, P.T. Newell, and R.B. Horne, Ground observations and possible 
source regions of two types of Pc 1-2 micropulsations at very high 
latitudes, J. Geophys. Res., 102, 27011, 1997.

Engebretson, M.J., W.J. Hughes, J.L. Alford, E. Zesta, L.J. Cahill, Jr., 
R.L. Arnoldy, and G.D. Reeves, MACCS observations of the spatial extent of 
broadband ULF magnetic pulsations at cusp/cleft latitudes, J. Geophys. 
Res., 100, 19371, 1995.

Engebretson, M.J., W.J. Hughes, H. Luhr, J.L. Posch, T. Moretto, 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 an sudden commencement across 
the polar ionosphere, J. Geophys. Res., in press, 1998.

Fasel, G.S., J. Minow, R.W. Smith, C.S. Deehr and L.C. Lee, Multiple 
brightenings of transient dayside auroral forms during oval expansions, 
Geophys. Res. Lett.,24, 2429-2432, 1992.

Fasel, G.J., J. Minow, R.W. Smith, C.S. Deehr and L.C. Lee, Multiple 
brightenings of poleward moving dayside auroral forms, in Solar Wind 
Sources of Magnetospheric ULF Waves, Geophys. Monogr. Ser., edited by M. 
Engebretson, K. Takahashi and M. Scholer, AGU, Washington, D.C., 1993.

Fasel, G.J., J. Minow, R.W. Smith, C.S. Deehr, and L.C. Lee, Ionospheric 
signatures of solar wind interaction in dayside aurora, in Airglow and 
Aurora, SPIE PRoceedings 2050, edited by S. Leontiev, SPIE, Berlin, FR. 
Germany, 1993.

Fasel, G.J., L.C. Lee and R.W. Smith, A mechanism for the multiple 
brightenings of dayside poleward moving auroral forms, Geoph. Res. Lett., 
20, 2247-2250, 1993.

Fasel., G.J., J.I.Minow, R.W. Smith and C.S. Deehr, Poleward moving auroral 
forms: What do we really know about them?, in Physical Signatures of 
Magnetospheric Boundary Layer Processes, edited by A. Egeland, J. Holtet 
and P.E. Sandholt, Kluwer Academic Publishers, 1994.

Fasel, G.J., L.C. Lee and R.W. Smith, Dayside poleward moving auroral 
forms:  A brief review, in Physics of the Magnetopause, Geophys. Monogr. 
Ser., vol. 90, edited by P. Song, B. U. …. Sonnerup, and M. Thomsen, pp. 
439-447, AGU, Washington, 1995.

Fedder, J. A., S. P. Slinker, and J. G. Lyon, A comparison of global 
numerical simulation results to data from the January 27-28, 1992 GEM 
Grand Challenge event, J. Geophys. Res., in press, 1998. 

Hairston, M. R., R. A. Heelis, and F. J. Rich,  Visualization of the 
electrostatic potential distribution in both polar ionospheres using 
multiple statellite measurements, Advanced Data Handling and Visualization 
in Space and Atmospheric Sciences, edited by E. P. Szuszczewicz and J. H. 
Bredekamp, NASA publication SP-519, 1995.

Hill, T. W., and F. R. Toffoletto, Comparison of empirical and theoretical 
polar-cap convection patterns for the January 1992 GEM interval, J. 
Geophys. Res., in press, 1998. 

Hill, T. W., Theoretical models of polar-cap convection under the influence 
of a northward interplanetary magnetic field, J. Atmos. Terr. Phys., 56, 
185, 1994.

Hughes, W.J., and M.J. Engebretson, MACCS: Magnetometer array for cusp and 
cleft studies, in Satellite-Ground Based Coordination Sourcebook, edited by 
M.Lockwood, M.N.Wild, and H.J.Opgenoorth, ESA-SP-1198, European Space 
Agency, Noordwijk, The Netherlands, 1997.

Hughes, W.J., M.J. Engebretson, and E. Zesta, Ground observations of 
transient cusp phenomena: initial results from MACCS, in Physics of the 
Magnetopause, Geophys. Monogr. Ser., vol. 90, edited by P. Song, B. U. …. 
Sonnerup, and M. Thomsen, pp. 427-437, AGU, Washington, 1995.

Hughes, W.J., ULF waves in the cusp and cleft: signatures of boundary layer 
processes, in Physical Signatures of Magnetospheric Boundary Layer 
Processes, edited by J.A. Holtet and A. Egeland, p.349, Kluwer Acad. Pub., 
Dordrecht, 1994.

Knipp, D. J., et al., Ionospheric convection response to slow, strong 
variations in a northward interplanetary magnetic field:  A case study for 
January 14, 1988, J. Geophys. Res., 98, 19,273, 1993. 

Kouznetsov, I., and W. Lotko, Radial energy transport by magnetospheric ULF 
waves:  Effects of magnetic curvature and plasma pressure, J. Geophys. 
Res., 100, 7599, 1995.

Kustov, A. V., V. O. Papitashvili, G. J. Sofko, A. Schiffler, Ya. I. 
Feldstein, L. I. Gromova, A. E. Levitin, B. A. Belov, R. A. Greenwald, and 
M. J. Ruohoniemi, Dayside ionospheric plasma convection, electric fields, 
and field-aligned currents derived from the SuperDARN radar observations 
and predicted by the IZMEM model, J. Geophys. Res., 102, 24,057-24,067, 
1997.

Lin, Z. M., E. A. Bering, J. R. Benbrook, B. Liao, L. J. Lanzerotti, C. G. 
Maclennan, A. N. Wolfe, and E. Friis-Christensen, Statistical Studies of 
impulsive events at hgih latitudes, J. Geophys. Res., 100, 7553, 1995.

Lotko, W., Milestones in Geospace Environment Modeling, EOS Trans. Am. 
Geophys. Union, 74, 618-619,622, 1993.

Lotko, W., and B. U. O. Sonnerup, The low-latitude boundary layer on closed 
field lines, in Physics of the Magnetopause, Geophys. Monogr. Ser., vol. 
90, edited by P. Song, B. Sonnerup, and M. Thomsen, pp. 371-383, AGU, 
Washington, D.C., 1995.

Lu, G., et al., Interhemispherical asymmetry of the high-latitude 
ionospheric convection pattern, J. Geophys. Res., 99, 6491, 1994. 

Lu, G., L. R. Lyons, P. H. Reiff, W. F. Denig, O. de la Beaujardiere, H. W. 
Kroehl, P. T. Newell, F. J. Rich, H. Opgenoorth, M. A. L. Persson, J. M. 
Ruohoniemi, E. Friis-Christensen, L. Tomlinson, R. Morris, G. Burns, and A. 
McEwin, Characteristics of ionospheric convection and field-aligned current 
in the dayside cusp region, J. Geophys. Res., 100, 11,845, 1995.

Lu, G., A. D. Richmond, B. A. emery, and R. G. Roble, Magnetosphere-
ionosphere-thermosphere coupling:  Effect of neutral winds on energy 
transfer and field-aligned current, J. Geophys. Res., 100, 19,643, 1995. 

Luhr, H., M. Lockwood, P.E. Sandholt, T.L. Hansen, and T. Moretto, Multi-
instrument ground-based observations of a travelling convection vortices 
event, Ann. Geophys., 14, 162, 1996.

Luhr, H., M. Rother, T. Iyemori, T.L. Hansen, and R.P. Lepping, Superposed 
epoch analysis applied to large-amplitude travelling convection vortices, 
Ann. Geophys, in press, 1998.

Lyons, L. R., G. Lu, O. de la Beaujardiere, and F. J. Rich, Synoptic maps 
of polar caps for stable IMF intervals during January 1992 GEM campaign, 
J. Geophys. Res., 101, 27,283, 1996. 

Maynard, N. C., E. J. Weber, D. R. Weimer, J. Moen, T. Onsager, R. A. 
Heelis, and A. Egeland, How wide in magnetic local time is the cusp?  An 
event study, J. Geophys. Res., 102, 4765, 1997. 

McHarg, M. G., J. V. Olson, and P. T. Newell, ULF cusp pulsations:  
Diurnal and interplanetary magnetic correlations with ground-based 
observations, J. Geophys. Res., 100, 19,729, 1995. 

Mei, Y., N. U. Crooker, and G. L. Siscoe, Cusp current modeling:  A 
systematic approach, J. Geophys. Res., 99, 4027-4038, 1994.

Mei, Y., N. U. Crooker, and G. L. Siscoe, Cusp currents from ionospheric 
sources:  Contributions from gasdynamic and merging flow fields at the 
magnetopause, J. Geophys. Res., 100, 7641-7647, 1995.

Minow, J.I., R.W. Smith, W.F. Denig and P.T. Newell, Dayside auroral 
dynamics during reconfiguration of the auroral oval, in Physical Signatures 
of Magnetospheric Boundary Layer Processes, edited by A. Egeland, J. Holtet 
and P.E. Sandholt, Kluwer Academic Publishers, 1994.

Moretto, T.  and E. Friis-Christensen, Ground observations of dayside 
small-scale dynamic features, Advances in Space Research, 20, 863, 1997.
Moretto, T., E. Friis-Christensen, H. Luhr, E. Zesta, Global perspective of 
ionospheric travelling convection vortices:  Case studies of two GEM 
events, J. Geophys. Res., 102, 11597, 1997.

Musko, Stephen B., C. Robert Clauer, and Vladimir O. Papitashvili, A study 
of very high latitude geomagnetic phenomena using autonomous remote 
magnetometer data-acquisition systems, Antarctic J. of the U.S., 1995 
Review, 30, 361-363, 1995.

Nilsson, H., M. Yamauchi, T. Mukai, T. Yamamoto, and T. Moretto, 
Observations of an enhanced convection flow channel for northward turning 
IMF, Geophys. Res. Lett., 24, 3137-3140, 1998.

Nishikawa, K.-I., Particle entry into the magnetosphere with a southward 
IMF as simulated by a 3-D EM particle code, J. Geophys. Res., 102, 17,631, 
1997.

Nishikawa, K.-I., Particle entry through reconnection grooves in the 
magnetopause with a dawnward IMF as simulated by a 3-D EM particle code, 
Geophys. Res. Lett., 25, in press, 1998.

Oieroset, M., H. Luhr, J. Moen, T. Moretto, and P. E. Sandholt, Dynamical 
auroral morphology in relation to ionospheric plasma convection and 
geomagnetic activity:  Signatures of magnetopause X-line dynamics and flux 
transfer events, J. Geophys. Res., 101, 13,275, 1996.

Oieroset, M., P. E. Sandholt, H. Luhr, W. F. Denig, and T. Moretto, Auroral 
and geomagnetic signatures of flux transfer events in the prenoon sector 
during positive IMF By conditions, J. Geophys. Res., 102, 7191, 1997.

Onsager, T. G., and F. R. Toffoletto, Global view of high-latitude particle 
precipitation, EOS Supplement, Trans. AGU, Vol. 77, No. 46, November 12, 
1996.

Papitashvili, V. O., B. A. Belov, D. S. Faermark, Ya. I. Feldstein, S. A. 
Golyshev, L. I. Gromova, and A. E. Levitin, Electric potential patterns in 
the Northern and Southern polar regions parameterized by the interplanetary 
magnetic field, J. Geophys. Res. 99, 13,251-13,262, 1994.

Papitashvili, V. O., C. R. Clauer, A. E. Levitin, and B. A. Belov, 
Relationship between the observed and modeled modulation of the dayside 
ionospheric convection by the IMF By component, J. Geophys. Res., 100, 
7715-7722, 1995.

Papitashvili, V. O., C. R. Clauer, M. L. Cooper, B. A. Belov, and A. E. 
Levitin, Space weather forecast from WIND spacecraft data and IZMEM 
electric potentials, in The Evaluation of Space Weather Forecasts, 
Proceedings of a Workshop at Boulder, Colorado June 19 - 21, 1996, K. 
Doggett (ed), NOAA Space Environment Center, 169 - 172, 1996.

Papitashvili, V. O., C. R. Clauer, S. B. Musko, B. A. Belov, O. A. 
Troshichev, and M. G. Gudkov, "Low-magnitude, long-period magnetic 
pulsations observed deep in the southern polar cap", Antarctic J. of the 
U.S., 1996 Review, 31, 1996.

Peroomian, V., L. R. Lyons, M. Schulz, and D. C. Pridmore-Brown, A 
Comparison of AMIE and Source Surface Model Results for the GEM Grand 
Challenge, J. Geophys. Res., in press, 1998.

Pinnock, M., A. S. Rodger, and F. T. Berkey, High-latitude F region 
electron concentration measurements near noon:  A case study, J. Geophys. 
Res., 100, 7723, 1995.

Pulkkinen, T.I. and N.A. Tsyganenko, Testing the accuracy of magnetospheric 
model field line mapping, J.Geophys.Res., 101, 27431-27442, 1996.

Raeder, J., J. Berchem, and M. Ashour-Abdalla, GGCM modeling of 
ionospheric convection:   The GEM Grand Challenge, J. Geophys. Res., in 
press, 1998. 

Richard, R. L., R. J. Walker, and M. Ashour-Abdalla, The population of the 
magnetosphere by solar wind ions when the interplanetary magnetic field is 
northward, Geophys. Res. Lett., 21, 2455, 1994.

Richmond, A. D., Assimilative mapping of ionospheric electrodynamics, Adv. 
Space Res., 6, 59, 1992. 

Ridley, A. J., and C. R. Clauer, Characterization of the dynamic variations 
of the dayside high latitude ionospheric convection reversal boundary and 
relationship to interplanetary magnetic field orientation, J. Geophys. 
Res., 101, 10919-10938, 1996.

Ridley, A. J., G. Lu, C. R. Clauer, and V. O. Papitashvili, Ionospheric 
convection during nonsteady interplanetary magnetic field conditions, J. 
Geophys. Res., 102, No. A7, 14,563-14,579, 1997.

Ridley, A. J., G. Lu, C. R. Clauer, and V. O. Papitashvili, A statistical 
study of the ionospheric convection response to changing interplanetary 
magnetic field conditions using the assimilative mapping of ionospheric 
electrodynamics technique, J. Geophys. Res., 103, 4023, 1998. 

Ridley, A., T. Moretto, P. Ernstrvm 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., in press, 1998.

Rodger, A. S.,  Ionospheric signatures of magnetopause processes, in Polar 
Cap Boundary Phenomena, Ed. J Moen, A Egeland and M Lockwood, NATO ASI 
Series Vol. 509, Kluwer Academic Publishers, Dordrecht, Netherlands, pp 
115-125, 1998. 

Rodger, A. S and M Pinnock, The ionospheric response to flux transfer 
events- the first few minutes, Annales Geophysicae, 15, 685-691, 1997. 

Rodger, A. S., M. Pinnock, J. R. Dudeney, K. B. Baker, and R. A. 
Greenwald, A new mechanism for polar patch formation, , J. Geophys. Res., 
99, 6425, 1994. 

Rodger, A. S, S. B. Mende, T J Rosenberg and K B Baker, Simultaneous 
optical and HF radar observations of the ionospheric cusp, Geophysics 
Research Letters, 22, 2045-2048, 1995. 

Sigernes, F., Fasel, G., Deehr, C.S., Smith, R.W., Lorentzen, D., Wetjen, 
L.T., and K. Henriksen, Calculations and ground-based observations of pulse 
proton events in the dayside aurora, J. Atmos. Terr. Phys., 1281-1292, 
1996.

Sitar, R. J., C. R. Clauer, and E. Friis-Christensen, "High latitude ground 
based response to sudden changes in solar wind dynamic pressure", J. 
Geophys. Res., 101, 27001-27013, 1996.

Sitar, R. J., J. B. Baker, C. R. Clauer, A. J. Ridley, J. A. Cumnock, and 
V. O. Papitashvili, J. Spann, M. J. Brittnacher, and G. K. Parks, Multi-
instrument analysis of a traveling convection vortex event on July 24, 1996 
coordinated with POLAR UVI", J. Geophys. Res., submitted, 1998.

Smith, R.W., Dayside aurora and Magnetospheric Processes, in Physical 
Signatures of Magnetospheric Boundary Layer Processes, edited by A. 
Egeland, J. Holtet and P.E. Sandholt, Kluwer Academic Publishers, 1994.

Song, J.,  Modeling Electromagnetic Fields of the Earth's Magnetosphere, 
M.S. thesis, Rice University, August 1997.

Stauning, P. E., Coupling of IMF By variations into the polar ionospheres 
through interplanetary field-aligned currents, J. Geophys. Res., 99, 
17,309, 1994. 

Stauning, P., E. Friis-Christensen, O. Rasmussen, and S. Vennerstrom, 
Progressing polar convection disturbances: Signature of an open 
magnetosphere, J. Geophys. Res., 99, 11,303, 1994 

Stauning, P., C. R. Clauer, T. J. Rosenberg, E. Friis-Christensen, and R. 
Sitar, Observations of solar wind driven poleward progression of IMF-By 
related dayside ionospheric disturbances, J. Geophys. Res., 100, 7567-7585, 
1995.

Toffoletto, F. R., and T. W. Hill, A nonsingular model of the open 
magnetosphere, J. Geophys. Res., 98, 1339, 1993.

Toffoletto, F. R., R. V. Hilmer, T. W. Hill, and G.-H. Voigt, Solution of 
the Chapman-Ferraro problem with an arbitrary magnetopause, Geophys. Res. 
Lett., 21, 621, 1994.

Troshichev, O. A., A. L. Kotikov, E. M. Shishkina, V. O. Papitashvili, C. 
R. Clauer, and E. Friis-Christensen, DPY currents in the cusp/cleft region: 
A crucial role of southward interplanetary magnetic field, J. Geophys. 
Res., 102, 4777-4786, 1997.

Tsyganenko, N.A. Modeling the Earth's magnetospheric magnetic field 
confined within a realistic magnetopause, J. Geophys.Res., 100, 5599-5612, 
1995.

Tsyganenko, N.A., and D.P. Stern, Modeling the global magnetic field of the 
large-scale Birkeland current systems, J.Geophys.Res., 101, 27187-27198, 
1996.

Walker, R. J., R. L. Richard, and M. Ashour-Abdalla, The entry of solar 
wind ions into the magnetosphere, in Physics of the Magnetopause, Geophys. 
Monogr. Ser., vol., 90, edited by P. Song, B. U. …. Sonnerup, and M. 
Thomsen, pp. 311-319, AGU, Washington, DC, 1995.

Walker, R. J., R. L. Richard, T. Ogino, and M. Ashour-Abdalla, Solar wind 
entry into the magnetosphere when the interplanetary magnetic field is 
southward, Physics of Space Plasmas (1995), SPI Conference Proceedings and 
Reprint Series, p. 561, edited by T. Chang, MIT, Cambridge, MA, 1996.

Watermann, J., D. Lummerzheim, O. de la Beaujardiere, P. T. Newell, and F. 
J. Rich, Ionospheric footprint of magnetosheath-like particle 
precipitation observed by an incoherent-scatter radar, J. Geophys. Res., 
99, 3855, 1994. 

Wei, C. Q., B. U. O. Sonnerup, and W. Lotko, Modeling the low-latitude 
boundary layer with finite field-aligned potential drops and non-constant 
mapping factors, J. Geophys. Res., 101, 21,463, 1996.

Weiss, L. A., P. H. Reiff, H. C. Carlson, E. J. Weber, M. Lockwood and W. K 
Peterson, Flow-aligned jets in the magnetospheric cusp:  Results from the 
GEM Pilot program, J. Geophys. Res., 100, 7649, 1995.

Winglee, R. M., V. O. Papitashvili, and D. R. Weimer, Comparison of the 
high latitude ionospheric electrodynamics inferred from global simulations 
and semi-empirical models for the January 1992 GEM Campaign, J. Geophys. 
Res., 102, 26,961, 1997.

Xue, S., Numerical Modeling of the Magnetospheric Cusp: Ion Injection and 
Number Density Calculations, Ph.D. thesis, Rice University, April 1997.

Xue, S., P. H. Reiff, and T. G. Onsager, Mid-altitude modeling of cusp ion 
injection under steady and varying conditions, Geophys. Res. Lett., 24, 
2275, 1997.

Xue, S., P. H. Reiff, and T. Onsager, Cusp ion injection and number density 
modeling in realistic electric and magnetic fields, in Physics and 
Chemistry of the Earth, edited by K. Yamauchi, in press, 1998.

Yahnin, A. and T. Moretto, Travelling convection vortices in the ionosphere 
map to the central plasma sheet, Ann. Geophys., 14, 1025, 1996.

Zesta, E., W.J., Hughes and M.J. Engebretson, T.J. Hughes, A.J. Lazarus, 
and K.I. Paularena, The November 9, 1993 traveling covection vortex event: 
a case study, J. Geophys. Res., in press, 1998.

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