| 基于MODIS数据的雪面温度遥感反演 |
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| 引用本文： | 周纪, 陈云浩, 李京, 蒋卫国. 基于MODIS数据的雪面温度遥感反演[J]. 武汉大学学报 ( 信息科学版), 2007, 32(8): 671-675. |
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| 作者姓名： | 周纪 陈云浩 李京 蒋卫国 |
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| 作者单位： | 1 北京师范大学环境演变与自然灾害教育部重点实验室,北京市新街口外大街19号,1008752 北京师范大学资源学院,北京市新街口外大街19号,100875 |
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| 基金项目： | 国防科技工业民用专项科研技术研究项目 |
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| 摘 要： | 通过对Planck函数在低温范围内进行线性化,改进了针对MODIS数据的实用性分裂窗算法,建立了基于MODIS数据的中纬度地区雪面温度遥感反演方法。以环青海湖地区为研究区进行了算法应用,取得了较理想的效果。验证并分析了雪面温度与海拔高度的负相关关系。通过对下垫面相对均一的3个样区进行分析,讨论了雪面温度与归一化积雪指数的关系,并提出了“NDSI-Ts空间”的概念。
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| 关 键 词： | 雪面温度 积雪指数 海拔高度 MODIS |
| 文章编号： | 1671-8860（2007）08-0671-05 |
| 收稿时间： | 2007-04-28 |
| 修稿时间： | 2007-04-28 |
Retrieving Snow Surface Temperature Based on MODIS Data |
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| ZHOU Ji, CHEN Yunhao, LI Jing, JIANG Weiguo. Retrieving Snow Surface Temperature Based on MODIS Data[J]. Geomatics and Information Science of Wuhan University, 2007, 32(8): 671-675. |
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| Authors: | ZHOU Ji CHEN Yunhao LI Jing JIANG Weiguo |
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| Affiliation: | 1 Key Laboratory of Environmental Change and Natural Disaster,Ministry of Education,Beijing Normal University, 19 Xinjiekouwai Street,Beijing 100875,China2 College of Resources Science and Technology,Beijing Normal University,19 Xinjiekouwai Street,Beijing 100875,China |
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| Abstract: | On the basis of the simplification of Planck function in a low temperature range,this paper modifies the practical split-window algorithm proposed by Mao et al.and presents a method for retrieving the snow surface temperature(Ts) based on MODIS data in middle-latitude region.The application of this method in Qinhai Lake region reveals that it is feasible for the retrieval of Ts.The result of correlation analysis indicates that there is obvious negative relationship between Ts and altitude.By analyzing three typical areas in which land cover is relative homogenous,this paper discusses the relationship between Ts and normalized difference snow index(NDSI) and then presents a new concept named "NDSI-Ts space". |
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| Keywords: | MODIS |
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