HR: 0830h
AN: SA41B-0436    [PDF]
TI: Automatic Detection of Equatorial Plasma Bubbles in GUVI Data
AU: * Henderson, S
EM: sidh@cc.usu.edu
AF: Utah State University Department of Electrical and Computer Engineering, 4120 Old Main Hill, Logan, UT 84322
AU: Swenson, C
EM: Charles.Swenson@usu.edu
AF: Utah State University Department of Electrical and Computer Engineering, 4120 Old Main Hill, Logan, UT 84322
AU: Straus, P
EM: Paul.Straus@aero.org
AF: The Aerospace Corporation, PO Box 92957, Los Angeles, CA 90009
AU: Kil, H
EM: Hyosub.kil@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD 20723
AU: Christensen, A
EM: Andrew.B.Christensen@aero.org
AF: The Aerospace Corporation, PO Box 92957, Los Angeles, CA 90009
AU: Paxton, L
EM: larry.paxton@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD 20723
AU: Morrison, D
EM: danny.morrison@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD 20723
AU: Crowley, G
EM: crowley@picard.space.swri.edu
AF: Southwest Research Institute Space Physics Department, 6220 Culebra Rd, San Antonio, TX 78238-5166
AU: Meier, R
EM: meier@uap2.nrl.navy.mil
AF: E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, DC 20375
AU: Craven, J
EM: craven@gi.alaska.edu
AF: Geophysical Institute and Dept. of Physics, University of Alaska Fairbanks, Fairbanks, AK 99775
AU: Strickland, D
EM: dstrick@cpi.com
AF: Computational Physics, Inc., 8001 Braddock Rd. Suite 210, Springfield, VA 22151
AU: Meng, C
EM: ching_meng@jhuapl.edu
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD 20723
AU: Walterscheid, R
EM: Richard.Walterscheid@aero.org
AF: Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD 20723
AU: Avery, S
EM: savery@cires.colorado.edu
AF: CIRES, 216 University of Colorado Boulder, Boulder, CO 80302
AB: The TIMED spacecraft is currently mapping the Earth disk and limb with the Global Ultraviolet Imager (GUVI). Images are made at six different wavelengths including the optically thin OI 135.6 nm line that is excited by the recombination of O+ ions at night. The intensity in these nighttime disk images is related to the total electron content of the ionosphere and density profiles can be recovered from the limb scans. Prominent in these images are UV signatures of the Equatorial Anomaly (EA) where Equatorial Plasma Bubbles (EPBs) can be seen. We present a method to detect EPBs in GUVI data based upon image subspace techniques. We then present EPB detection rates in the entire 2002 GUVI dataset. Observations are made about rate dependencies to season, zone, local time, and the general condition of the EA. Finally, these results are compared with similar in situ based observations.
DE: 2415 Equatorial ionosphere
DE: 2435 Ionospheric disturbances
DE: 2439 Ionospheric irregularities
DE: 2494 Instruments and techniques
SC: SPA - Aeronomy [SA]
MN: 2003 Fall Meeting