Electron Density Retrieval Validation Using 911Å Emission Limb Scans

Details Electron Density Retrieval Validation Using 911Å Emission Limb Scans Electron Density Retrieval Validation Using 911Å Emission Limb Scans

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsa21a0338b&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SA21A-0338

Mathematics

Logic

0310 Airglow And Aurora, 0335 Ion Chemistry Of The Atmosphere (2419, 2427)

Scientific paper

This study will focus on a statistical validation of a one-dimensional electron density retrieval algorithm for the oxygen emission at 911Å. 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 911Å 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 911Å emission for the retrieval of electron density profiles on the dayside and in the terminator.

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