Oceans and coastal zones
Satellite altimeter is one of important global ocean remote sensing technique to monitor the
marine dynamic environment. Sentinel-3A/3B satellite equipped with SRAL have been launched
on 16 Feb. 2016 and 25 Apr. 2018 in Europe, and HY-2A/2B satellite equipped Radar Altimeter
were launched on 16 Aug. 2011 and 25 Oct. 2018 in China. The CFOSAT was launched in 2018.
The combinations of European and Chinese altimeters will improve the data application ability of
these altimeters. As the continuance of Dragon 4 project (ID.32292), the objectives of this
research topic are to improve the retrieval of SSH and SWH of Sentinel-3 and HY-2 series
altimeters in the Chinese seas by the waveform retracking method in the coastal areas, to
combine Sentinel-3 and HY-2 series altimeters data into high spatial resolution grid data in the
China seas and western Pacific Ocean, to develop the retrieval method of sea surface current by
combining the altimeter, sea surface wind and SST data in the Chinese seas and western Pacific
Ocean, and to analyze the spatial-temporal variation characteristics of ocean waves, ocean
current and mesoscale eddies in the Chinese seas and the western Pacific Ocean. In this study,
the deliverables of the investigation include the time series grid data of SWH, SLA (Sea Level
Anomaly) and sea surface current with the high spatial resolution in the China seas and western
Pacific Ocean, the spatial-temporal characters of marine dynamic environment, such as ocean
wave, ocean circulation and mesoscale eddies in the China seas and western Pacific Ocean.
The funding to support this project includes the National Natural Science Foundation of China
(No.51839002) and National key research and development program of China
(2016YFC1401801).
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