Variations in the Tropical Ultraviolet Airglow Determined From 2-D Inversions of UV Limb Scans

Details Variations in the Tropical Ultraviolet Airglow Determined From 2-D Inversions of UV Limb Scans Variations in the Tropical Ultraviolet Airglow Determined From 2-D Inversions of UV Limb Scans

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sa62a10m&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SA62A-10

Mathematics

Logic

0310 Airglow And Aurora, 2443 Midlatitude Ionosphere, 6982 Tomography And Imaging

Scientific paper

Launched aboard the Air Force Test Program's Advanced Research and Global Observation Satellite (ARGOS) in February 1999, the Low Resolution Airglow and Aurora Spectrograph (LORAAS) has collected numerous spectra of Earth's airglow in the extreme ultraviolet and far ultraviolet regimes (800 - 1700 Angstroms). Limb scans, atmospheric radiance profiles in the satellite's orbital plane, are collected every ninety seconds. The intensity of the nighttime O I 1356-Angstrom emissions associated with the equatorial anomaly were measured and interpreted using analysis techniques developed for the Defense Meteorological Satellite Program (DMSP) Special Sensor Ultraviolet Limb Imager (SSULI). Tomographic inversions of the vertical scans were also used to more accurately determine the locations of the equatorial anomalies. We apply these analysis techniques to study the location, height, and magnitude of the anomalies and study their variability with geomagnetic activity. Of particular interest to our study are the time periods during the geomagnetically active time of the Bastille Day storm (July 14, 2000) and during the Caribbean Ionospheric Campaign (October 18-29, 2000). We discuss our results and compare them to ionospheric models.

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