Abstract: Interplanetary shocks can have a great impact on the thermospheric space environment through interaction with the thermosphere. We report the behavior of lower thermospheric neutral wind field at the Chinese Arctic Yellow River Station (78.92°N, 11.93°E) using data collected by the All-sky Fabry-Perot Interferometer (All-sky FPI) for observations of the 557.7 nm oxygen atom layer (about 97 km) on November 26 and 28, and December 1, 2011, and compare these data to those for the neutral atmosphere horizontal wind field and Horizontal Wind Model 2007 (HWM07) for the same period. We report the horizontal wind field can change dramatically in both magnitude and direction within 30 minutes of interplanetary shocks being monitored by ACE satellites; causes of change may be related to Joule heating. Analysis of the sight wind field(the direction is from All-sky FPI to the observed thermosphere atmosphere) at 557.7 nm oxygen atom layer on November 28 suggests ion drag can also affect wind field actions during interplanetary disturbances.

Key words: Interplanetary shock, Fabry-Perot Interferometer (FPI), neutral wind field, Joule heating, ion drag