Multiparametric Sea State Fields from Synthetic Aperture Radar
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:
Pleskachevsky, Andrey; Tings, Bjoern; Jacobsen, Sven (DLR, Earth Observation Center, Maritime Safety and Security Lab Bremen, Germany)
Schwarz, Egbert; Krause, Detmar; Voinov, Sergey (DLR, Earth Observation Center, Maritime Safety and Security Lab Neustrelitz, Germany)
Abstract:
The study presents a method embedded in a software for estimating series of integrated sea state parameters from satellite-borne synthetic aperture radar (SAR), which allows processing of data from different satellites and modes in near real time (NRT). The developed Sea State Processor (SSP) estimates total significant wave height Hs, dominant and secondary swell and windsea wave heights, first, and second moment wave periods, mean wave period and period of wind sea. The algorithm was applied for the Sentinel-1 (S1) C-band Interferometric Wide Swath Mode (IW), Extra Wide (EW) and Wave Mode (WM) Level-1 (L1) products and also extended to the X-band TerraSAR-X (TS-X) StripMap (SM) mode. The wide scenes are processed in raster format and resulting in continuous sea state fields. For the S1 WV 20 km x 20 km imagettes averaged values for each sea state parameter are provided. Validated with worldwide data the reached RMSE for Hs are 0.25 m for S1 WV, ~35 cm for TS-X SM and ~60 cm for the coarser S1 IW and S1 EW.