HR: 1340h
AN: SA23A-0305    [Abstracts]
TI: Differences Between the Response of the Equatorial TEC and foF2 to Solar Soft X-ray Irradiances
AU: * Wang, X
EM: xiaoniw@hotmail.com
AF: College of Electrical and Computer Engineering, University of Central Florida, Orlando, FL 32816 United States
AU: Eastes, R
EM: reastes@mail.ucf.edu
AF: Florida Space Institute (FSI), University of Central Florida, Orlando, FL 32816 United States
AU: Reinisch, B W
EM: Bodo_Reinisch@uml.edu
AF: University of Massachusetts, Lowell, Lowell, Ma 01854 United States
AU: Bailey, S
EM: Scott.Bailey@gi.alaska.edu
AF: Geophysical Institute, University of Alaska,Fairbanks, Fairbanks, AK 99775
AU: Valladares, C
EM: valladar@bc.edu
AF: Newton Resource Center, Institute for Scientific Research, Boston College, Boston, Ma 02467 United States
AU: Woods, T
EM: tom.woods@lasp.colorado.edu
AF: Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Co 80309 United States
AB: Measurements of the solar soft X-ray irradiances from the SNOE satellite; the TEC from Ancon, Peru; and the foF2 from Jicamarca, Peru have been compared for a period of almost two years. While both TEC and foF2 have a significant response to changes in the solar irradiances, each responds differently. At noon time, solar irradiances have a stronger correlation with TEC than with foF2 and the solar irradiances lead TEC by ~1 day but they do not lead foF2. At earlier local times, the solar irradiances have a stronger correlation with foF2 than with TEC. The solar irradiances lead TEC by ~2 days and foF2 by ~1 day. The study shows that the ionospheric densities have a more significant dependence on solar soft X-ray irradiances than on F10.7.
DE: 2415 Equatorial ionosphere
DE: 2479 Solar radiation and cosmic ray effects
SC: SPA-Aeronomy [SA]
MN: Fall Meeting 2005