Estimation of equatorial electrojet from total electron content at geomagnetic equator using Kalman filter

Details Estimation of equatorial electrojet from total electron content at geomagnetic equator using Kalman filter Estimation of equatorial electrojet from total electron content at geomagnetic equator using Kalman filter

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011adspr..47..938a&link_type=abstract

Advances in Space Research, Volume 47, Issue 6, p. 938-944.

Computer Science

Scientific paper

The temporal variation of the equatorial electrojet is estimated utilising a suitably designed Kalman filter and using the established empirical relations between the anomaly component of equatorial TEC and the modified electrojet. TEC data obtained from dual frequency GPS receivers are used for the purpose. Estimation requires the a-priori knowledge of the peak electrojet value of the day and hence can be made in post temporal scenario only. Initial results obtained during a low solar activity time in an equinoctial month shows acceptable accuracy of the proposed algorithm. Limited analysis is done by segregating the results into temporal sessions of pre-attainment and post-attainment of the electrojet peak.

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