Results of the Dragon 4 Project on New Ocean Remote Sensing Data for Operational Applications

Type Article
Date 2021-07
Language English
Author(s) Gibert FerranORCID1, Boutin JacquelineORCID2, Dierking WolfgangORCID3, 4, Granados AlbaORCID1, Li Yan5, Makhoul EduardORCID1, Meng Junmin6, 7, Supply Alexandre2, 8, Vendrell Ester1, Vergely Jean-Luc9, Wang Jin10, Yang JungangORCID6, Xiang Kunsheng5, Yin Xiaobin11, Zhang Xi6, 7
Affiliation(s) 1 : isardSAT SL, Parc Tecnològic Barcelona Activa, Carrer de Marie Curie 8, 08042 Barcelona, Catalonia, Spain
2 : Laboratoire d’Océanographie et du Climat: Expérimentations et Approches Numériques LOCEAN IPSLCNRS, IRD, MNHN, UMR 7159, Sorbonne Université, 75005 Paris, France
3 : Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570 Bremerhaven, Germany
4 : Centre for Integrated Remote Sensing and Forecasting for Arctic Operations, The Arctic University of Norway, 9019 Tromsø, Norway
5 : Marine Department, Piesat Information Technology Co., Ltd., Beijing 100080, China
6 : First Institute of Oceanography, Ministry of Natural Resources of China, Qingdao 266061, China
7 : Technology Innovation Center for Ocean Telemetry, Ministry of Natural Resources of China, Qingdao 266061, China
8 : LOPS Laboratory, IUEM, UBO–CNRS–IRD–Ifremer, University of Brest, 29280 Plouzané, France
9 : ACRI-st, 78280 Guyancourt, France
10 : Center for Marine Observation and Communications, Qingdao University, Qingdao 266000, China
11 : College of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
Source Remote Sensing (2072-4292) (MDPI AG), 2021-07 , Vol. 13 , N. 14 , P. 2847 (26p.)
DOI 10.3390/rs13142847
Note This article belongs to the Special Issue ESA - NRSCC Cooperation Dragon 4 Final Results
Keyword(s) 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
Abstract

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.

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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 (2021). Results of the Dragon 4 Project on New Ocean Remote Sensing Data for Operational Applications. Remote Sensing, 13(14), 2847 (26p.). Publisher's official version : https://doi.org/10.3390/rs13142847 , Open Access version : https://archimer.ifremer.fr/doc/00707/81882/