HR: 15:00h
AN: SA33C-06    [Abstracts]
TI: Monitoring the Dayside Equatorial Anomalies With 135.6 nm Limb Emission
AU: Schaefer, R K
EM: robert.schaefer@jhuapl.edu
AF: JHU Applied Physics Laboratory, Space Department, 11100 Johns Hopkins Rd, Laurel, MD 20723, United States
AU: * DeMajistre, R
EM: Bob.DeMajistre@jhuapl.edu
AF: JHU Applied Physics Laboratory, Space Department, 11100 Johns Hopkins Rd, Laurel, MD 20723, United States
AU: Paxton, L
EM: larry.paxton@jhuapl.edu
AF: JHU Applied Physics Laboratory, Space Department, 11100 Johns Hopkins Rd, Laurel, MD 20723, United States
AB: The TIMED/GUVI instrument is able to resolve 135.6nm emission from atomic oxygen ion recombination on the dayside limb (above the lower altitude day-glow emission). Signatures of the equatorial anomalies are clearly visible in this data. These signatures can be used to study the magnitude, asymmetry, separation and, to a large extent, the height of the anomalies. These quantities, in turn, contain information about electric fields in the F region of the ionosphere. We present here an analysis of this data taken during selected strong storm periods and contrast the storm-time behavior with quiet time variations.
DE: 2411 Electric fields (2712)
DE: 2415 Equatorial ionosphere
DE: 2437 Ionospheric dynamics
DE: 2441 Ionospheric storms (7949)
DE: 2788 Magnetic storms and substorms (7954)
SC: SPA-Aeronomy [SA]
MN: 2007 Fall Meeting