| 多光谱卫星图像反演云空湿度场方法的改进 |
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| 引用本文： | 郁凡. 多光谱卫星图像反演云空湿度场方法的改进[J]. 国土资源遥感, 2003, 14(1): 38-42 |
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| 作者姓名： | 郁凡 |
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| 作者单位： | 南京大学大气科学系,南京,210093 |
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| 基金项目： | 国家自然科学基金项目(40175007)，国家重点基础研究项目(G1998040910)。 |
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| 摘 要： | 利用1998年6～8月GMS图像和分析区内近70个台站的地面和探空资料,在过去工作的基础上,通过引入地面实测湿度场相关资料作新的分析参量,建立了各标准等压面相对湿度统计分析新模型,改进了应用多光谱卫星图像反演三维湿度场的方法.通过比较和检验,证实新模型可有效改进大气湿度场的反演精度,特别是低层湿度场的反演精度.
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| 关 键 词： | 卫星遥感 多光谱图像 三维湿度场 |
| 文章编号： | 1001-070X(2003)01-0038-05 |
| 收稿时间： | 2002-10-12 |
| 修稿时间： | 2002-10-12 |
THE IMPROVED METHOD FOR HUMIDITY FIELD RETRIEVAL IN CLOUD SKY BY MEANS OF MULTI-SPECTRAL SATELLITE IMAGERY |
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| Affiliation: | Department of Atmospheric Sciences, Nanjing University, Nanjing 210093, China |
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| Abstract: | Based on earlier researches, the authors have put forward an improved method for 3Dhumidity field retrieval by means of multi-spectral satellite imagery, and established a new statistic model for humidity field analysis of each standard isobaric surface by introducing the measured ground humidity data as a new parameter. Four channel GMSimagery from June to August in1998 and ground as well as radiosonde reports from 70 stations in the analytical area are used. The comparison and verification show that the new model can improve the retrieval precision of 3Dhumidity field, especially that of the lower isobaric surface. |
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| Keywords: | Satellite remote sensing Multi-spectral imagery 3D humidity field |
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