SA32B-07:
Three-station measurements of upward vertical wind associated with auroral precipitation.
Wednesday, 17 December 2014: 11:50 AM
Donald L Hampton1, John W Meriwether2 and Mark Conde1, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Clemson University, Clemson, SC, United States
Abstract:
Sustained F-region thermospheric upward vertical winds associated with auroral precipitation were observed by a dedicated Fabry-Perot interferometer observing the OI emission at 630.0 nm at Poker Flat Research Range from 2009 to 2011. The winds are typically 20 to 40 m/s and lasted for the duration of low-energy electron precipitation. Based on these observations we have initiated a three-station campaign to further investigate the relative local time and latitudinal extent of these winds. The three stations are located at Poker Flat Research Range (65.1 N, -147.4 E), Eagle, AK (64.8 N, -141.2 E) and Fort Yukon, AK (66.6 N, -145.2 E). All three stations operated simultaneously from Feb to April of 2014 . We will present initial results from the season especially the correlation between the observed vertical motion and the location and intensity of auroral precipitation as measured by co-located cameras and spectrographs.
