Determination of the Range of Irregularities Using Scintillation Spectra Derived From the GPS Occultation Sensor on COSMIC

Details Determination of the Range of Irregularities Using Scintillation Spectra Derived From the GPS Occultation Sensor on COSMIC Determination of the Range of Irregularities Using Scintillation Spectra Derived From the GPS Occultation Sensor on COSMIC

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agusmsa23a..07b&link_type=abstract

American Geophysical Union, Spring Meeting 2007, abstract #SA23A-07

Physics

2415 Equatorial Ionosphere, 2427 Ionosphere/Atmosphere Interactions (0335), 2439 Ionospheric Irregularities, 3332 Mesospheric Dynamics, 3384 Acoustic-Gravity Waves

Scientific paper

Ground-based VHF and L-band scintillations, GPS TEC and 630.0 nm All-Sky Imaging Photometer (ASIP) observations at Kwajalein Island were coordinated with measurements by the Tiny Ionospheric Photometer (TIP) and the GPS occultation sensor (GOX) on COSMIC satellites during the September 2006 campaign. On 17 and 18 September 2006, all the ground based sensors and TIP showed the presence of plasma structures in the ionosphere. The GOX occultations, which had F-region intercepts within the field of view of ASIP images containing depletions of plasma density, detected scintillations. Spectral studies of these observed scintillations were used for ranging the irregularities from the COSMIC satellites. The presence of the ASIP images containing depletions, thus provides an additional constraint for the determination of the range of irregularities. We conclude that the spectral analysis of GOX scintillations provides reliable estimates of the range of irregularities in the disturbed equatorial F-region of the ionosphere.

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