| HUANG Xiaoqi,ZHU Jianhua,LIN Mingsen,ZHAO Yili,WANG He,CHEN Chuntao,PENG Hailong,ZHANG Youguang. 2014. A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer. Acta Oceanologica Sinica, 33(1):114－119 |
| A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer |
| A preliminary assessment of the sea surface wind speed production of HY-2 scanning microwave radiometer |
| Received:August 31, 2012 Revised:January 08, 2013 |
| DOI：10.1007/s13131-014-0403-z |
| Key words:HY-2 satellite scanning microwave radiometer sea surface wind speed spatial and temporal collocation validation |
| 中文关键词: HY-2 satellite scanning microwave radiometer sea surface wind speed spatial and temporal collocation validation |
| 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. |
| Author Name | Affiliation | E-mail | | HUANG Xiaoqi | National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China | | | ZHU Jianhua | National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China | besmile@263.net | | LIN Mingsen | National Satellite Ocean Application Service, State Oceanic Administration, Beijing 10081, China | | | ZHAO Yili | National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China | | | WANG He | National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China | | | CHEN Chuntao | National Ocean Technology Center, State Oceanic Administration, Tianjin 300111, China | | | PENG Hailong | National Satellite Ocean Application Service, State Oceanic Administration, Beijing 10081, China | | | ZHANG Youguang | 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. |
| 中文摘要: |
| 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 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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