Strategic Study of CAE >> 2014, Volume 16, Issue 6
Study on retrieval algorithm of ocean parameters for the HY-2 scanning microwave radiometer
1. National Space Science Center,CAS,Beijing 100190,China;
2. Graduate University of Chinese Academy of Sciences,Beijing 100049,China
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Abstract
This paper established retrieval algorithm of sea surface temperature,sea surface wind speed,atmospheric water vapor content,atmospheric liquid water content and rain rate for the HY-2 scanning microwave radiometer using simulation data of radiation transfer equation. And then we used on-orbit data to retrieve these parameters. The validation of sea surface temperature,sea surface wind speed shows that the algorithm is feasible and reasonable,which can retrieve the atmospheric and ocean parameters,and the accuracy meets the requirement of the design indicators. Currently,the validation of other parameters is still going on. The retrieval algorithm will be optimized by further calibration of brightness temperature.
References
[ 1 ] Wentz Frank J. A well-calibrated ocean algorithm for special sensor microwave/imager [J]. Journal of Geophysical Research, 1997,102(C4):8703-8718. link1
[ 2 ] Wentz Frank J,Meissner Thomas. Algorithm theoretical basis document (ATBD),version 2:AMSR ocean algorithm [Z]. Santa Rosa,California USA:Remote Sensing Systems,2000.
[ 3 ] 王振占. 海面风场全极化微波辐射测量——原理、系统设计与 模拟研究[D]. 北京:中国科学院研究生院,2005.
[ 4 ] 王振占,李 芸.利用星载微波辐射计AMSR-E数据反演海洋 地球物理参数[J]. 遥感学报,2009,13(3):363-370. link1
[ 5 ] Ellison W,Balana A,Delbos G,et al. New permittivity measurements of seawater [J]. Radio Science,1998,33(3):639- 648. link1
[ 6 ] Monahan Edward C,O’Muircheartaigh Iognaid G. Whitecaps and the passive remote sensing of the ocean surface [J]. International Journal of Remote Sensing,1986,7(5):627-642. link1
[ 7 ] Wilheit Thomas T. The effect of wind on the microwave emission from the ocean’s surface at 37 GHz [J]. Journal of Geophysical Research,1979,84(C8):4921-4926. link1
[ 8 ] Saunders Roger,Brunel Pascal. RTTOV_8_7 users guide [R]. NWPSAF- MO- UD- 008,Darmstadt,Germany:EUMETSAT, 2005.
[ 9 ] Zhao Yili,Zhu Jianhua,Lin Mingsen,et al. Assessment of the initial sea surface temperature product of the scanning microwave radiometer aboard on HY-2 satellite [J]. Acta Oceanologica Sinica,2014,33(1):109-113. link1
[10] Huang Xiaoqi,Zhu Jianhua,Lin Mingsen,et al. A preliminary assessment of the sea surface wind speed production of the HY- 2 scanning microwave radiometer [J]. Acta ceanologica Sinica, 2014,33(1):114-119. link1