Sea surface salinity observed from the HY-2A satellite

SOM

Satellite Oceanography and Meteorology

2424-89592424-9505

WHIOCE PUBLISHING PTE. LTD.

10.18063/SOM.2017.01.004

Research Article

Sea surface salinity observed from the HY-2A satellitehttps://artdesignp.com/journal/SOM/2/1/10.18063/SOM.2017.01.004SongQingtao,WangZhaohui

2017

2017-02-11

Motivated by the shortcomings of radio frequency interferences (RFI) associated with the spaceborne L-band radiometers near the Northwest Pacific and previous study near the Amazon plume, this study presents a sea surface salinity (SSS) retrieval algorithm from the microwave radiometer onboard the HY-2A satellite. The SSS signal is improved by differentiating the reflectance between the C and X band. A reflectance calibration method is proposed by using a combination of radiative transfer model (RTM) and the Klein-Swift emissivity model. Evaluations of the retrieved SSS from the HY-2A satellite indicate that the root mean square error (RMSE) is about 0.35 psu on 0. 5 degree grid spacing and monthly time scale which is comparable to the accuracy of SMOS and Aquarius-SAC/D satellites.Sea surface salinity, microwave radiometer, HY-2A satellite, SMOS, Aquarius, emissivity model

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