Specifying and Predicting Ionospheric Disturbances with C/NOFS

Details Specifying and Predicting Ionospheric Disturbances with C/NOFS Specifying and Predicting Ionospheric Disturbances with C/NOFS

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsa12b1101d&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SA12B-1101

Other

2415 Equatorial Ionosphere, 2435 Ionospheric Disturbances

Scientific paper

The purpose of the Communication/Navigation Outage Forecasting System (C/NOFS) is to forecast ionospheric irregularities that adversely impact communication, navigation and surveillance systems. A satellite, scheduled for launch in 2004 into a low inclination (13° ), elliptical (~ 400 x 700 km) orbit, is the main component of the C/NOFS Mission. Complementary ground-based measurements form the other Mission segment. C/NOFS is the first satellite solely dedicated to forecasting ionospheric irregularities and radio wave scintillations. Its sensors will measure the following parameters: ambient and fluctuating electron densities; ion and electron temperatures; AC and DC electric fields; magnetic fields; neutral winds; ionospheric scintillations; and electron content along the lines of sight between the C/NOFS and GPS satellites. Forecasting will be based on both ground and space data. In order to predict the presence of scintillation-producing irregularities the following three main tasks need to be accomplished: (1) nowcast and forecast the background equatorial ionosphere; (2) identify mechanisms that trigger or quench the plasma irregularities; and (3) determine how irregularities evolve. In this presentation, we will describe these steps, as well as the validation and campaigns that are planned.

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