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同化MODIS温度产品估算地表水热通量
徐同仁; 刘绍民; 秦军; 梁顺林
Source Publication遥感学报
2009
Issue6
Abstract基于集合卡尔曼滤波和通用陆面模型(CLM1.0)发展了一个地表温度的同化系统。这个系统同化了MODIS温度产品,并将MODIS的叶面积指数引入CLM模型中,主要用于改进地表水热通量的估算精度。将CLM输出的地表温度与MODIS地表温度建立关系,并作为同化系统的观测算子。将MODIS地表温度与实测地表温度进行了比较,将其均方差(Root Mean Square Error,RMSE)作为观测误差。选取3个美国通量网站点(Blackhill、Bondville、Brookings)作为实验数据,结果表明:同化结果中地表温度、显热通量的估算精度均有提高。其中Blackhill站的估算精度改进最大,均方差由81.5W·m-2减小到58.4W·m-2,Bondville站均方差由47.0W·m-2减小到31.8W·m-2,Brookings站均方差由46.5W·m-2减小到45.1W·m-2。潜热通量估算精度在Bondville站均方差由88.6W·m-2减小到57.7W·m-2,Blackhill站均方差由53.4W·m-2减小到47.2W·m-2。总之,结合陆面过程模型同化MODIS温度产品估算地表水热通量是可行的
Subject Area水文学
Language中文
Indexed By其他
Cooperation Status其它
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/170
Collection图书馆
大气物理与大气环境
Recommended Citation
GB/T 7714
徐同仁,刘绍民,秦军,等. 同化MODIS温度产品估算地表水热通量[J]. 遥感学报,2009(6).
APA 徐同仁,刘绍民,秦军,&梁顺林.(2009).同化MODIS温度产品估算地表水热通量.遥感学报(6).
MLA 徐同仁,et al."同化MODIS温度产品估算地表水热通量".遥感学报 .6(2009).
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