A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer

HUANG Xiaoqi; ZHU Jianhua; LIN Mingsen; ZHAO Yili; WANG He; CHEN Chuntao; PENG Hailong; ZHANG Youguang

doi:10.1007/s13131-014-0403-z

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Article Navigation > Acta Oceanologica Sinica > 2014 > 33(1): 114-119

HUANG Xiaoqi, ZHU Jianhua, LIN Mingsen, ZHAO Yili, WANG He, CHEN Chuntao, PENG Hailong, ZHANG Youguang. A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer[J]. Acta Oceanologica Sinica, 2014, 33(1): 114-119. doi: 10.1007/s13131-014-0403-z

Citation:

HUANG Xiaoqi, ZHU Jianhua, LIN Mingsen, ZHAO Yili, WANG He, CHEN Chuntao, PENG Hailong, ZHANG Youguang. A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer[J]. Acta Oceanologica Sinica, 2014, 33(1): 114-119. doi: 10.1007/s13131-014-0403-z

Citation:

HUANG Xiaoqi, ZHU Jianhua, LIN Mingsen, ZHAO Yili, WANG He, CHEN Chuntao, PENG Hailong, ZHANG Youguang. A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer[J]. Acta Oceanologica Sinica, 2014, 33(1): 114-119. doi: 10.1007/s13131-014-0403-z

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A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer

doi: 10.1007/s13131-014-0403-z

1.
National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China
2.
National Satellite Ocean Application Service, State Oceanic Administration, Beijing 10081, China

Received Date: 2012-08-31
Rev Recd Date: 2013-01-08

Abstract

Abstract

A scanning microwave radiometer (RM) was launched on August 16, 2011, on board HY-2 satellite. The six-month long global sea surface wind speeds observed by the HY-2 scanning microwave radiometer are preliminarily validated using in-situ measurements and WindSat observations, respectively, from January to June 2012. The wind speed root-mean-square (RMS) difference of the comparisons with in-situ data is 1.89 m/s for the measurements of NDBC and 1.72 m/s for the recent four-month data measured by PY30-1 oil platform, respectively. On a global scale, the wind speeds of HY-2 RMare compared with the sea surface wind speeds derived from WindSat, the RMS difference of 1.85 m/s for HY-2 RM collocated observations data set is calculated in the same period as above. With analyzing the global map of a mean difference between HY-2 RM and WindSat, it appears that the bias of the sea surface wind speed is obviously higher in the inshore regions. In the open sea, there is a relatively higher positive bias in the mid-latitude regions due to the overestimation of wind speed observations, while the wind speeds are underestimated in the Southern Ocean by HY-2 RMrelative to WindSat observations.
- HY-2 satellite,
- scanning microwave radiometer,
- sea surface wind speed,
- spatial and temporal collocation,
- validation

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References(17)

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