Equatorial Plasma Bubble Climatology and Scintillation Forecasting from DMSP/SSUSI

Details Equatorial Plasma Bubble Climatology and Scintillation Forecasting from DMSP/SSUSI Equatorial Plasma Bubble Climatology and Scintillation Forecasting from DMSP/SSUSI

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa51b1637c&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SA51B-1637

Physics

[2415] Ionosphere / Equatorial Ionosphere, [2494] Ionosphere / Instruments And Techniques, [6969] Radio Science / Remote Sensing, [7924] Space Weather / Forecasting

Scientific paper

Improving our ability to predict and mitigate the impacts of ionospheric scintillation on satellite communication and navigation systems requires new observations of the global morphology and climatology of scintillation-causing irregularities. The SSUSI (Special Sensor Ultraviolet Spectrographic Imager) instrument on-board the DMSP F16 satellite has global observations of the ionosphere at 8 PM local time since 2004. We have developed a technique for reconstructing three-dimensional ionospheric electron density profiles from SSUSI UV brightness observations at 135.6 nm. We also have developed a technique that routinely detects equatorial plasma bubbles in SSUSI data. Here we present a climatology of SSUSI plasma bubble observations (occurrence frequency as a function of parameters such as longitude, season, solar activity, etc.) which is the most comprehensive set of global observations ever at 8 PM local time. The COSMIC constellation of six satellites was launched in April 2006 and eventually reached circular orbit with 700-800 km altitude and 72° inclination. COSMIC records scintillation parameters for GPS transmitter—LEO receiver links including the S4 scintillation index. The capability of SSUSI to forecast observed scintillation from bubble detections is evaluated and discussed based on a study of the correlation between SSUSI bubble detections and COSMIC S4 observations from early 2007.

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