Study on Ionospheric Effects on SAR and their Statistics
Conference: EUSAR 2022 - 14th European Conference on Synthetic Aperture Radar
07/25/2022 - 07/27/2022 at Leipzig, Germany
Proceedings: EUSAR 2022
Pages: 5Language: englishTyp: PDF
Authors:
Gomba, Giorgio; De Zan, Francesco (German Aerospace Center (DLR), Weßling, Germany)
Rommen, Bjoern; Orus Perez, Raul (ESA/ESTEC, The Netherlands)
Abstract:
The objective of this work is to study the impact of ionospheric disturbances on the Sentinel-1 mission. First we realize an ionospheric statistics database based on global TEC models and maps. Then we process interferometric stacks of Sentinel-1 images using the split-spectrum method to estimate the differential ionosphere and validate the GNSS based statistics. We use the newly developed database to determine the expected average and maximum ionospheric errors on Sentinel-1 SAR measurements. We discuss the possibility to routinely include flags or corrections for ionospheric disturbances in Sentinel-1 products.