HR: 1340h
AN: SA33B-1330 [Abstracts]
TI: The Low-latitude Ionosphere as Observed by TIMED/GUVI and TOPEX/Jason and Comparisons With the IRI Model
AU: * Hsieh, S W
EM: Syau-Yun.Hsieh@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road,
Laurel, MD 20723, United States
AU: Talaat, E R
EM: Elsayed.Talaat@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road,
Laurel, MD 20723, United States
AU: Bilitza, D
EM: Dieter.Bilitza.1@gsfc.nasa.gov
AF: NASA, Goddard Space Flight Center, Greenbelt, MD 20771,
AU: DeMajistre, R
EM: Bob.DeMajistre@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road,
Laurel, MD 20723, United States
AU: Paxton, L
EM: Larry.Paxton@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road,
Laurel, MD 20723, United States
AU: Christensen, A
EM: Andrew.B.Christensen@aero.org
AF: The Aerospace Corp., P.O.Box 92957, Los Angeles, CA 90009,
AU: Yee, J
EM: Sam.Yee@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road,
Laurel, MD 20723, United States
AB:
Long term measurement datasets available from several recent satellite missions provide essential information
for better understanding the electrodynamics of ionosphere, especially in the low-latitude region. The TOPEX
and Jason satellites have obtained the total electron content (TEC) over the oceans from ~1200 km orbit between
1992-present. TIMED/GUVI has retrieved the F-region electron density profile below ~550 km from 2002-present.
The availability of these datasets allows us to examine the structure of the low-latitude ionosphere over a solar
cycle. We will also present the detailed comparisons of our results with those from IRI model with an emphasis
on variations in local time, longitude and over the solar cycle.
DE: 2415 Equatorial ionosphere
DE: 2437 Ionospheric dynamics
DE: 2730 Magnetosphere: inner
DE: 2736 Magnetosphere/ionosphere interactions (2431)
DE: 2753 Numerical modeling
SC: SPA-Aeronomy [SA]
MN: 2007 Fall Meeting