Geophysical Research Letters
Measurements with the Sondrestrom radar have been used to examine the daytime thermospheric neutral wind and to relate that wind to other geophysical parameters. Ion drag is found to be particularly important for determining the wind pattern. However, evidence is presented that the wind pattern is significantly influenced by soft particle precipitation and, possibly, by Joule heating.
Wickwar, V. B. (1984), Thermospheric neutral wind at −39° azimuth during the daytime sector at Sondrestrom, Geophys. Res. Lett., 11(9), 927–930, doi:10.1029/GL011i009p00927.