@article{a8f871b4c9a04e9484e04bcf3c4773d3,
title = "The behavior of the high-latitude F-region neutral thermosphere in relation to IMF parameters",
abstract = "Ground based incoherent scatter radar (ISR) and Fabry Perot interferometer (FPI) studies in the northern high latitudes during the period 1983 to 1989 have shown that the F-region neutral wind field pattern depends upon the sign of the IMF parameters. For example, the cell structure of the northern hemisphere high latitude neutral wind field during periods of low geomagnetic activity depends to a large degree upon the sign of the IMF By parameter. Long term monitoring of the F-region thermosphere by FPI in Thule, Greenland, and by both FPI and ISR in S{\o}ndre Str{\o}mfjord, Greenland, have made it possible to produce maps of average meridional and zonal wind fields for various IMF configurations for northern high latitudes. Comparison of observations with theoretical wind field modelling, such as the Vector Spherical Harmonic model, indicates that most observed features are consistent with the models.",
author = "Niciejewski, {R. J.} and Killeen, {T. L.} and Johnson, {R. M.} and Thayer, {J. P.}",
note = "Funding Information: ponent.Inallcases,theIMPB5 component was taken to be near zero, or definitely southward. The binned averages from the optical measurements in Thule and S{\o}ndre Str{\o}mfjord have been displayed in a polar dial form for both signs of By and indicate a definite asymmetry in the cell size of the neutral wind convection pattern forB~positiveconditions. The cells appearto be similarin sizeforthe B{\~n}egativecase.These obser-vationsare consistent withthe empirical plasmaconvectionpatterns described byHeppner and Maynard/10/. Neutral horizontal winds in the F-region obtained from the VSH model indicates a good correspondence with observations acquired at S{\o}ndre Str{\O}mfjord during periods in which this station is within the polar cap. The greatest discrepancy between ipodelled and measured winds occurs during the cusp transit over S{\o}ndre Str{\o}mfjord. ACKNOWLEDGEMENTS Dr. Johnson{\textquoteright}s efforts were funded under NSF Grant ATM-9096134 and by the Air Force Office of Space Research under contract F49620-87-K-0007. This research was also supported by NSF Grant ATM-8822530 and by the Air Force through grant F19628-89-K-0047.",
year = "1992",
doi = "10.1016/0273-1177(92)90058-6",
language = "English (US)",
volume = "12",
pages = "215--218",
journal = "Advances in Space Research",
issn = "0273-1177",
publisher = "Elsevier Limited",
number = "6",
}