| 利用NOAA-AVHRR遥感资料反演长江三角洲地表反照率的试验 |
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| 引用本文： | 金莲姬,刘晶淼,李雁领,丁裕国.利用NOAA-AVHRR遥感资料反演长江三角洲地表反照率的试验[J].南京气象学院学报,2002,25(1):28-35. |
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| 作者姓名： | 金莲姬 刘晶淼 李雁领 丁裕国 |
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| 作者单位： | 1. 南京气象学院,环境科学系,江苏,南京,210044
2. 中国气象科学研究院,北京,100081 |
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| 基金项目： | 国家自然基金重大项目49899270，国家重点基础研究项目G1998040911 |
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| 摘 要： | 利用NOAA－AVHRR的CH1和CH2资料，反演了长江三角洲地区地表反照率瞬时值，与前人给出的不同地面覆盖物反照率进行对比，表明对该地区的反演是可行的。还提出一种由单一时刻反照率推算一天中其他任意时刻反照率的方法，发现方法可靠。最后比较了太阳天顶角和地表状况对地表反照率的影响大小，发现二者量级相当，说明在短时、超短时数值模式中，必须同时考虑二者的作用。
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| 关 键 词： | NOAA－AVHRR 反演 地表反照率 长江三角洲 遥感资料 覆盖物 |
| 文章编号： | 1000-2022(2002)01-0028-08 |
| 修稿时间： | 2000年10月31 |
Deriving the Surface Albedo over the Yangtze Delta from NOAAAVHRR Data |
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| JIN Lian-ji,LIU Jing-miao,LI Yan-ling,DING Yu-guo.Deriving the Surface Albedo over the Yangtze Delta from NOAAAVHRR Data[J].Journal of Nanjing Institute of Meteorology,2002,25(1):28-35. |
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| Authors: | JIN Lian-ji LIU Jing-miao LI Yan-ling DING Yu-guo |
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| Abstract: | The surface albedo over the Yangtze Delta is derived from CH1 and CH2 data of NOAA-AVHRR. The comparison between the derived and the observed surface albedos shows that the retrieval method is reasonable. Moreover,a technique is presented to estimate the surface albedo at any time of a day by the use of the surface albedo at a single time. The influence of the solar altitude and surface conditions on the surface albedo is also investigated, indicating that they are in the same order. It is suggested that both factors must be included in the development of nowcasting and short-range numerical model. |
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| Keywords: | NOAA-AVHRR retrieval surface albedo |
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