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The ESA Permanent Facility for Altimetry Calibration: Monitoring Performance of Radar Altimeters for Sentinel-3A, Sentinel-3B and Jason-3 Using Transponder and Sea-Surface Calibrations with FRM Standards

Stelios Mertikas, Achilleas Tripolitsiotis, Craig Donlon, Constantin Mavrocordatos, Pierre Féménias, Franck Borde, Xenophon Frantzis, Costas Kokolakis, Thierry Guinle, George Vergos, Ilias N. Tziavos, Robert Cullen
2020 Remote Sensing  
This work presents the latest calibration results for the Copernicus Sentinel-3A and -3B and the Jason-3 radar altimeters as determined by the Permanent Facility for Altimetry Calibration (PFAC) in west  ...  To maintain Fiducial Reference Measurement (FRM) status, the stability and quality of altimetry products need to be continuously monitored throughout the operational phase of each altimeter.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/rs12162642 fatcat:sv5uytkopvfmzh6fvtonjcrgzu

Aboveground biomass estimation of tropical peat swamp forests using SAR and optical data

Sandra Englhart, Jonas Franke, Vanessa Keuck, Florian Siegert
2012 2012 IEEE International Geoscience and Remote Sensing Symposium  
Acknowledgements The authors would like to thank the Japan Aerospace Agency (JAXA) for supplying ALOS PALSAR data within the PI project No. 211 as well as Infoterra GmbH and German Space Agency (DLR) for  ...  providing TerraSAR-X data and their cooperation within the For-X Project (50 E705, PI: LAN0236).  ...  Four TerraSAR-X ScanSAR HH polarized images with a pixel The preprocessing of the SAR images included standard radiometric calibration for sigma naught Fritz 2009; Luscombe 2009; Richter 1997; Shimada  ... 
doi:10.1109/igarss.2012.6352092 dblp:conf/igarss/EnglhartFKS12 fatcat:j6zgqklkqjbila7y57ggqjgr6i