| A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer |
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| 作者姓名： | HUANG Xiaoqi ZHU Jianhu LIN Mingsen ZHAO Yili WANG He CHEN Chuntao PENG Hailong ZHANG Youguang |
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| 作者单位： | National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China;National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China;National Satellite Ocean Application Service, State Oceanic Administration, Beijing 10081, China;National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China;National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China;National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China;National Satellite Ocean Application Service, State Oceanic Administration, Beijing 10081, China;National Satellite Ocean Application Service, State Oceanic Administration, Beijing 10081, China |
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| 基金项目： | The National High-Tech Project of China under contract No. 2008AA09A403; the Marine Public Welfare Project of China under contract No. 201105032. |
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| 摘 要： | 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 RM are 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 RM relative to WindSat observations.
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| 关 键 词： | 微波辐射计 海面风速 扫描 评估 生产 风速观测 现场测量 RMS |
| 收稿时间： | 2012/8/31 0:00:00 |
| 修稿时间： | 1/8/2013 12:00:00 AM |
A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer |
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| HUANG Xiaoqi,ZHU Jianhu,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. |
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| Authors: | HUANG Xiaoqi ZHU Jianhu LIN Mingsen ZHAO Yili WANG He CHEN Chuntao PENG Hailong and ZHANG Youguang |
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| Affiliation: | 1.National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China2.National Satellite Ocean Application Service, State Oceanic Administration, Beijing 10081, China |
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| 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. |
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| Keywords: | HY-2 satellite scanning microwave radiometer sea surface wind speed spatial and temporal collocation validation |
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