| 风云二号E星和多角度成像仪的云导风资料质量对比 |
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| 引用本文： | 金雪,韩威,朱克云,陈静.风云二号E星和多角度成像仪的云导风资料质量对比[J].成都信息工程学院学报,2012,27(2):211-218. |
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| 作者姓名： | 金雪 韩威 朱克云 陈静 |
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| 作者单位： | 1. 成都信息工程学院大气科学学院,四川成都,610225
2. 中国气象局数值预报中心,北京,100081 |
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| 摘 要： | 针对现在缺少对风云二号E星云导风资料的详细对比评估,结合多角度成像仪与风云二号E星云导风的特性,提出了将二者云导风资料的交叉对比方法,利用多角度成像仪云导风资料的优势特征作为对比参照,对2010以及2011年的风云二号E星云导风资料进行参照对比,分析风云二号E星云导风资料的特性。选择2010、2011年1～8月的风云二号E星资料分别与多角度成像仪云导风资料进行分析,对两种资料进行匹配处理,并对匹配结果进行准确的统计分析,便于分析风云二号E星云导风资料的优缺点以及质量变化。研究结果表明:风云二号E星云导风资料的整体质量要稍差于多角度成像仪云导风资料;但是就风云二号E星云导风资料自身而言,2011年的资料质量较2010年有不同程度的提高。
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| 关 键 词： | 气象学 资料同化 多角度成像仪 风云2号E星 云导风 匹配 均方根误差 |
Comparison of FY-2E and MISR Cloud Motion Winds |
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| JIN Xue
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HAN Wei
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ZHU Ke-yun
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CHEN Jing.Comparison of FY-2E and MISR Cloud Motion Winds[J].Journal of Chengdu University of Information Technology,2012,27(2):211-218. |
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| Authors: | JIN Xue HAN Wei ZHU Ke-yun CHEN Jing |
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| Institution: | 1.School of Atmospheric Sciences,Chengdu University of Information Technology,Chengdu 610225,China;2.Numerical Prediction Center,CMA,Beijing 100081,China) |
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| Abstract: | Considering the lack of detailed comparative assessment of the cloud motions winds from FY-2E satellite at present,as well as the characteristics of the cloud motion winds from MISR and FY-2E,cross comparison method for the cloud motion winds from MISR and FY-2E was proposed in the paper,the advantage of the cloud motion winds from MISR was emphasized by contrast of 2010 and 2011 cloud motion winds from FY-2E,and the characteristic of the cloud motion winds from FY-2E was analysed.Taking the cloud motion winds from MISR as reference,both the data of FY-2E and MISR for January-August,2010 and 2011 were analysed,and accurate statistical analysis on the matching result of the two data was implemented.In order to analyze the advantages and disadvantages of the cloud motion winds from FY-2E,the cloud motion winds from FY-2E and MISR for the two years was compared respectively.The results show that the overall quality of the cloud motion winds from FY-2E is slightly worse than that of the cloud motion winds from MISR;but for the cloud motion winds from FY-2E itself,there is improvement of the data quality in 2011 relative to that of 2010 to a certain extent. |
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| Keywords: | meteorology data assimilation MISR FY-2E cloud motion vectors collocation root mean square error |
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