HR: 15:00h
AN: SA23A-05    [Abstracts]
TI: GPS Occultation Measurements of Post-Sunset E-Region Conductivity
AU: * Straus, P R
EM: paul.straus@aero.org
AF: The Aerospace Corporation, Mail Stop M2/260 PO Box 92957, Los Angeles, CA 90009, United States
AU: Bishop, R
EM: rebecca.bishop@aero.org
AF: The Aerospace Corporation, Mail Stop M2/260 PO Box 92957, Los Angeles, CA 90009, United States
AU: Crowley, G
EM: gcrowley@astraspace.net
AF: ASTRA, LLC, 12703 Spectrum Dr., San Antonio, TX 78249, United States
AB: The GPS occultation method of ionospheric remote sensing provide a means to obtain information about the low- density nighttime E-region, particularly under conditions when sharp sporadic-E layers are present. E-region conductivity is an important factor in the development of low-latitude dynamo electric fields and the associated uplift of the equatorial ionosphere known as the pre-reversal enhancement. GPS occultation measurements made by the Ionospheric Occultation Experiment (IOX) under solar maximum conditions and by the recently launched six-satellite COSMIC constellation under solar minimum conditions can be used to develop a climatology of the post-sunset E-region. Initial results of a study involving these data sets will be presented.
DE: 2415 Equatorial ionosphere
SC: SPA-Aeronomy [SA]
MN: 2007 Joint Assembly