HR: 0800h
AN: SA21A-0338    [Abstracts]
TI: Electron Density Retrieval Validation Using 911\AA Emission Limb Scans
AU: * Bennert, E J
EM: ellen.bennert@nrl.navy.mil
AF: Praxis, Inc., 2550 Huntington Ave. Suite 300, Alexandria, VA 22303 United States
AU: Coker, C
EM: ccoker@ssd5.nrl.navy.mil
AF: Praxis, Inc., 2550 Huntington Ave. Suite 300, Alexandria, VA 22303 United States
AU: Dymond, K F
EM: kenneth.dymond@nrl.navy.mil
AF: Naval Research Laboratory, Code 7607 4555 Overlook Ave, SW, Washington, DC 20375 United States
AU: Thonnard, S E
EM: stefan.thonnard@nrl.navy.mil
AF: Naval Research Laboratory, Code 7607 4555 Overlook Ave, SW, Washington, DC 20375 United States
AU: Nicholas, A C
EM: andrew.nicholas@nrl.navy.mil
AF: Naval Research Laboratory, Code 7607 4555 Overlook Ave, SW, Washington, DC 20375 United States
AU: Budzien, S A
EM: scott.budzien@nrl.navy.mil
AF: Naval Research Laboratory, Code 7607 4555 Overlook Ave, SW, Washington, DC 20375 United States
AU: McDonald, S E
EM: sarah.mcdonald@nrl.navy.mil
AF: Naval Research Laboratory, Code 7607 4555 Overlook Ave, SW, Washington, DC 20375 United States
AU: McCoy, R P
EM: Mccoyr@onr.navy.mil
AF: Office of Naval Research, Code 321SR Office of Naval Research 800 N. Quincy St, Arlington, VA 22217-5660 United States
AB: This study will focus on a statistical validation of a one-dimensional electron density retrieval algorithm for the oxygen emission at 911\AA. To do this, we will use data from ultraviolet limb scans to perform electron density profile retrievals using a one-dimensional algorithm. We will be analyzing the peak density of the layer as well as the height of the maximum density. These findings will be compared with data from ground-based ionosondes. The data set will cover a period of several months. Our particular interest is in data from limb scans near the terminator, though we will also analyze dayside 911\AA emission data. The results of this study will be valuable for the Special Sensor Ultraviolet Limb Imager (SSULI) on a recently launched satellite of the Defense Meteorological Satellite Program (DMSP). This first satellite to carry a SSULI instrument was launched October 18, 2003 into an orbit close to the terminator. This study will also be valuable for the next DMSP satellite to carry a SSULI instrument, which will fly in a terminator orbit. The SSULI instruments are similar to their prototype, the Low Resolution Airglow and Auroral Spectrograph (LORAAS), which was operational between 1999-2001. The LORAAS measured upper atmospheric airglow in the far- and extreme-ultraviolet passband, producing one limb scan every ninety seconds. We plan to use this analysis to demonstrate the value of using the 911\AA emission for the retrieval of electron density profiles on the dayside and in the terminator.
DE: 0310 Airglow and aurora
DE: 0335 Ion chemistry of the atmosphere (2419, 2427)
SC: SPA-Aeronomy [SA]
MN: 2004 AGU Fall Meeting