| 用FY-2C静止气象卫星资料计算射出长波辐射通量密度 |
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| 引用本文： | 吴晓. 用FY-2C静止气象卫星资料计算射出长波辐射通量密度[J]. 气象科技, 2007, 35(4): 474-479 |
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| 作者姓名： | 吴晓 |
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| 作者单位： | 中国气象局中国遥感卫星辐射测量和定标重点开放实验室,围家卫星气象中心,北京,100081 |
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| 摘 要： | 介绍用FY-2C静止气象卫星资料估算射出长波辐射(OLR)的方法,包括FY-2C OLR反演模式的建立、由FY-2C窗区通道1、窗区通道2、水汽通道遥测数据计算OLR的详细步骤;给出了FY-2C OLR产品的精度:与相近时刻的NOAA卫星OLR产品相对比,两颗星OLR产品的等值线图基本完全一致,图上绝大部分偏差0~10 W/m,最大偏差20 W/m;并给出了FY-2C OLR产品的实例及其初步应用。
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| 关 键 词： | 射出长波辐射 窄波段辐射 辐射通量密度 通道辐射率 等效亮度温度 |
| 收稿时间： | 2006-07-20 |
| 修稿时间： | 2006-07-20 |
Calculation of Outgoing Longwave Radiation Flux with FY-2C Data |
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| Wu Xiao. Calculation of Outgoing Longwave Radiation Flux with FY-2C Data[J]. Meteorological Science and Technology, 2007, 35(4): 474-479 |
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| Authors: | Wu Xiao |
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| Affiliation: | Key Laboratory of Radiometeric Calibration and Validation for Environmental Satellites, China Meteorological Administration, National Satellite Meteorological Center, Beijing 100081 |
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| Abstract: | The method for calculating OLR(Outgoing Longwave Radiation) with FY2C geostationary satellite data is described,including the establishment of the FY-2C OLR inverse model and the detailed procedures of calculating OLR by using the measurements in the FY-2C window and water vapor channels.The quality of FY-2C OLR products is discussed by comparing with NOAA OLR products nearly at the same time on the OLR isoline charts.The difference between the two products ranges from 0 to 20 W/m,with the maximum difference being 20 W/m.An example of FY-2C OLR products and application is also given. |
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| Keywords: | OLR flux narrowband radiation flux channel radiance equivalent brightness temperature |
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