| 两种红外晴空辐射订正方法及其反演大气参数的比较 |
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| 引用本文： | 官莉,HUANG Hung-lung.两种红外晴空辐射订正方法及其反演大气参数的比较[J].南京气象学院学报,2008,31(5):640-645. |
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| 作者姓名： | 官莉 HUANG Hung-lung |
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| 作者单位： | 1. 南京信息工程大学,遥感学院,江苏南京,210044
2. University of Wisconsin, Madison WI53705 |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金 |
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| 摘 要： | 比较了目前开发的两种红外晴空辐射订正算法：1）匹配的红外和微波探测值融合的算法，如AIRS／AMSU晴空订正算法（大气红外探测器AIRS，先进的微波探测器AMSU）；2）匹配的红外成像与探测值融合的算法，如AIRS／MODIS晴空订正算法（中分辨率光谱成像仪MODIS）。结果表明，相对于MODIS的晴空观测值而言，AIRS／MODIS晴空订正算法优于AIRS／AMSU晴空订正算法，而且AIRS／MODIS晴空订正辐射值反演的大气温湿廓线与欧洲中期天气预报中心（ECMWF）的客观分析场更接近；尽管这两种晴空订正算法本质上相当不同，但都是有效且互补的，当微波探测资料不能获得时，融合红外成像仪和探测器资料就成为唯一可靠的、间接使用有云影响的红外观测值的办法。
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| 关 键 词： | AIRS/MODIS AIRS/AMSU 晴空订正 大气参数反演 |
Comparison of Two Infrared Cloud-Cleared Approaches and Their Respective Sounding Retrieval Products |
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| GUAN Li,HUANG Hung-lung.Comparison of Two Infrared Cloud-Cleared Approaches and Their Respective Sounding Retrieval Products[J].Journal of Nanjing Institute of Meteorology,2008,31(5):640-645. |
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| Authors: | GUAN Li HUANG Hung-lung |
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| Institution: | GUAN Li ,HUANG Hung-lung ( 1. School of Remote Sensing,NUIST,Nanjing 210044,China;2. University of Wisconsin,Madison WI53705 ,USA) |
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| Abstract: | It is comparied between two infrared cloud-cleared radiance retrieval approaches, i. e. collocated infrared and microwave measurement and collocated infrared imaging and sounding measurement. It is found that AIRS/MODIS cloud-cleared radiance approach perform better than AIRS/AMSU cloud-cleared radiance approach relative to the collocated MODIS clear averaged radiances. The temperature and total precipitable water retrieved by AIRS/MODIS cloud-cleared radiance approach fit well with that objectively analyzed by ECMWF（ European Center of Medium-range Weather Forecasts）. Preliminary results show that the two approaches, though essentially different, are both effective and complementary. When the microwave measurements are unavailable, the synergistic imaging/sounding approach is the only reliable one, which can indirectly use the cloud-contaminated infrared measurements. |
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| Keywords: | AIRS/MODIS AIRS/AMSU |
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