FN Archimer Export Format PT J TI Results of the Dragon 4 Project on New Ocean Remote Sensing Data for Operational Applications BT AF Gibert, Ferran Boutin, Jacqueline Dierking, Wolfgang Granados, Alba Li, Yan Makhoul, Eduard Meng, Junmin Supply, Alexandre Vendrell, Ester Vergely, Jean-Luc Wang, Jin Yang, Jungang Xiang, Kunsheng Yin, Xiaobin Zhang, Xi AS 1:1;2:2;3:3,4;4:1;5:5;6:1;7:6,7;8:2,8;9:1;10:9;11:10;12:6;13:5;14:11;15:6,7; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:; C1 isardSAT SL, Parc Tecnològic Barcelona Activa, Carrer de Marie Curie 8, 08042 Barcelona, Catalonia, Spain Laboratoire d’Océanographie et du Climat: Expérimentations et Approches Numériques LOCEAN IPSLCNRS, IRD, MNHN, UMR 7159, Sorbonne Université, 75005 Paris, France Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570 Bremerhaven, Germany Centre for Integrated Remote Sensing and Forecasting for Arctic Operations, The Arctic University of Norway, 9019 Tromsø, Norway Marine Department, Piesat Information Technology Co., Ltd., Beijing 100080, China First Institute of Oceanography, Ministry of Natural Resources of China, Qingdao 266061, China Technology Innovation Center for Ocean Telemetry, Ministry of Natural Resources of China, Qingdao 266061, China LOPS Laboratory, IUEM, UBO–CNRS–IRD–Ifremer, University of Brest, 29280 Plouzané, France ACRI-st, 78280 Guyancourt, France Center for Marine Observation and Communications, Qingdao University, Qingdao 266000, China College of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China C2 ISARDSAT SL, SPAIN UNIV SORBONNE, FRANCE INST A WEGENER, GERMANY UNIV ARCTIC UIT NORWAY, NORWAY PIESAT INFORMATION TECHNOL LTD, CHINA MINIST NAT RESOURCES, CHINA MINIST NAT RESOURCES, CHINA CNRS, FRANCE ACRI-ST, FRANCE UNIV QINGDAO, CHINA UNIV OCEAN CHINA, CHINA UM LOPS IN WOS Cotutelle UMR DOAJ copubli-france copubli-europe copubli-univ-france copubli-int-hors-europe copubli-sud IF 5.349 TC 1 UR https://archimer.ifremer.fr/doc/00707/81882/86593.pdf LA English DT Article DE ;radar altimetry;sea ice thickness;sea ice classification;sea ice drift;sea surface height;significant wave height;sea level anomaly;geostrophic currents;Fully-Focussed SAR;sea surface salinity AB This paper provides an overview of the Dragon 4 project dealing with operational monitoring of sea ice and sea surface salinity (SSS) and new product developments for altimetry data. To improve sea ice thickness retrieval, a new method was developed to match the Cryosat-2 radar waveform. Additionally, an automated sea ice drift detection scheme was developed and tested on Sentinel-1 data, and the sea ice drifty capability of Gaofen-4 geostationary optical data was evaluated. A second topic included implementation and validation of a prototype of a Fully-Focussed SAR processor adapted for Sentinel-3 and Sentinel-6 altimeters and evaluation of its performance with Sentinel-3 data over the Yellow Sea; the assessment of sea surface height (SSH), significant wave height (SWH), and wind speed measurements using different altimeters and CFOSAT SWIM; and the fusion of SSH measurements in mapping sea level anomaly (SLA) data to detect mesoscale eddies. Thirdly, the investigations on the retrieval of SSS include simulations to analyse the performances of the Chinese payload configurations of the Interferometric Microwave Radiometer and the Microwave Imager Combined Active and Passive, SSS retrieval under rain conditions, and the combination of active and passive microwave to study extreme winds. PY 2021 PD JUN SO Remote Sensing SN 2072-4292 PU MDPI AG VL 13 IS 14 UT 000676941800001 DI 10.3390/rs13142847 ID 81882 ER EF