Mapping Ionospheric TEC using Faraday Rotation in Full- Polarimetric L-Band SAR Data
Conference: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
06/02/2008 - 06/05/2008 at Friedrichshafen, Germany
Proceedings: EUSAR 2008
Pages: 4Language: englishTyp: PDF
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Authors:
Meyer, Franz; Nicoll, Jeremy (Alaska Satellite Facility (ASF), University of Alaska Fairbanks, Alaska, USA)
Abstract:
In this paper Faraday rotation (FR) derived from full-polarimetric PALSAR data is used for showcasing the potential of L-band SAR for mapping ionospheric TEC. A FR estimation method is presented and its quality and error sources are analyzed. From the FR estimates ionospheric TEC is derived by inverting a geophysical model that relates FR to the geomagnetic field and the TEC. An error analysis is provided and confidence intervals for the processing results are calculated. Full-polarimetric PALSAR datasets are used to exemplify the robustness and sensitivity of the approach. Reference datasets are used to analyze the precision of the results.