Using IRI for the computation of ionospheric corrections for altimeter data analysis

Details Using IRI for the computation of ionospheric corrections for altimeter data analysis Using IRI for the computation of ionospheric corrections for altimeter data analysis

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..15..113b&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 15, no. 2, p. 113-119

Computer Science

3

Atmospheric Correction, Earth Ionosphere, Ionospheric Propagation, Reference Atmospheres, Satellite Altimetry, Signal Processing, Time Lag, Altimeters, Ers-1 (Esa Satellite), Geos Satellites (Esa), Topex

Scientific paper

Measurements by single-frequency satellite altimeter (Geosat, ERS-1) require a ionospheric correction to account for the signal time delay in the ionosphere. We propose using the International Reference Ionosphere (IRI) for the determination of this time delay. To investigate the effectiveness of an IRI correction, we have compared the IRI values with ionospheric corrections deduce from measurements by the dual-frequency Topex altimeter. By measuring at two frequencies, the Topex instrument can record (and thus eliminate) the ionospheric influence. We find that IRI agrees with the Topex data much better than the model that is currently used in Geosat data analysis. In particular the earlier model does not represent the equatorial double-peak (equator anomaly) clearly seen in the Topex data. Overall, the use of IRI results in a 30% improvement (over the older model) in the accuracy of ionospheric corrections computed for the first year of the Topex mission.

Affiliated with

Also associated with

No associations

Rating

Using IRI for the computation of ionospheric corrections for altimeter data analysis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Using IRI for the computation of ionospheric corrections for altimeter data analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using IRI for the computation of ionospheric corrections for altimeter data analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1629506