| 应用MODIS数据研究沙尘信息定量化方法探讨 |
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| 引用本文： | 熊利亚,李海萍,庄大方.应用MODIS数据研究沙尘信息定量化方法探讨[J].地理科学进展,2002,21(4):327-332. |
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| 作者姓名： | 熊利亚 李海萍 庄大方 |
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| 作者单位： | 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 科技部专项基金资助项目 (FS2 0 0 0 - 0 1 0 - 0 2 ) |
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| 摘 要： | 运用新一代中分辨率成像光谱仪 (MODIS)数据 ,进行沙尘信息的遥感定量化提取方法研究。通过沙尘信息的特征波段选择、沙尘信息与环境背景信息的分离研究 ,浮尘、扬沙等弱沙尘信息的增强处理研究 ,探讨沙尘灾害的定量化参数提取方法 ,建立沙尘信息遥感定量化提取模型 ,为沙尘灾害预报、监测、防治提供理论方法支持和依据.
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| 关 键 词： | 沙尘信息 定量提取 方法研究 |
| 文章编号： | 1007-6301(2002)04-0327-06 |
| 收稿时间： | 2002-05-01 |
| 修稿时间： | 2002-06-01 |
Discuss on Quantitative Method Study of Sand-dust Information Using MODIS Data |
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| XIONG Li y,LI Hai ping,ZHUANG Da fang.Discuss on Quantitative Method Study of Sand-dust Information Using MODIS Data[J].Progress in Geography,2002,21(4):327-332. |
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| Authors: | XIONG Li y LI Hai ping ZHUANG Da fang |
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| Institution: | Institute of Geographical Sciences and Natural Resources Research,CAS, Beijing 100101 China |
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| Abstract: | With the successful launching of the new generation satellite of EOS Terra, its Moderate Resolution Imaging Spectroradiometer(MODIS) data has more advantages in comprehensive research of land, ocean and atmosphere. Also it can be used in disaste mornitoring and assesment. This paper focus on the discussion of using MODIS data to study sand dust information quantitative retrieval method. The conclution is that MODIS data can be used to study the quantitative retrieval of sand dust information and the study scenario has certain feasibility. The study contains of selecting the characteristic spectrum bands of sand dust information; seperating sand dust information from the background and enhancing the weak information of floating dust ,raising dust etc. Theory basis of quantitative retrieval method are remote sensing quantitative method, atmosphere radiative transforming and visibility theories. Data pre processing is also necessary. Retrieving of sand dust aerosl optic thickness is more difficult and also the key problem to resolve. Case study is necessary and should be used to support the quantitative method. The study can provide the theory basis and techenic supportting for sand dust disaster forcasting, mornitoring and preventing. |
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| Keywords: | Terra/MODIS Sand dust information Quantitative retrieval method |
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