Remote Sensing Monitoring of Lake Qinghai Based on EOS/MODIS Data
Remote Sensing Monitoring of Lake Qinghai Based on EOS/MODIS Data
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DOI：
10.18307/2005.0413
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
Yin Qing-jun;Yang Yinglian
中科院分区：
文献类型：
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作者：
Yin Qing-jun;Yang Yinglian
MODIS数据具有高空间分辨率和高光谱分辨率的特点，利用EOS/MODIS数据监测和预测地球资源的潜在变化已成为研究的热点。本文介绍了利用EOS/MODIS数据进行水体与背景区分、水体冰提取、冻融动态监测、并以青海湖为例，利用MODIS数据完成了青海湖冻融过程的动态监测，同时将青海湖2003年7月固定位置的真实的水面温度数据与2004年7月的实测水面温度数据进行了对比分析，结果表明，青海湖冻融过程中，表层水温的变化趋势与实测水面温度Jun.to变化趋势基本一致。目前，本文所述的内陆湖泊监测模型已应用于青白遥感中心的业务工作中。
MODIS data has the characteristic of high spatial and spectral resolution.The study on monitoring and predicting the po- tential change of earth resources based on EOS/MODIS data have become a heated issue.This paper introduced the principle and method of using EOS/MODIS data to distinguish water body from background,to extract ice from water body ,to monitor the dynamic process of freeze-thaw,to calculate the area of water body and ice extent,as well as the water surface temperature.Furthermore,the study took the Lake QingHai for example,using the MODIS data completed the dynamic monitoring the process of freeze-thaw,and at the same time,compared the real data of water surface temperature at fixed location of Jun.to Jul.2003 with the result derived from the MODIS data of same period.At present,the model of monitoring inland lake described in this article has already applied to the operational work of Qingbai Remote Sensing Center.