Estimation of snow water equivalent and snow depth in boreal forests by assimilating AMSR-E observations with in situ observations

被引：0

作者：

Pulliainen, J ^{[1
]}

Hallikainen, M ^{[1
]}

Anttila, S ^{[1
]}

Metsämäki, S ^{[1
]}

机构：

[1] Helsinki Univ Technol, Lab Space Technol, FIN-02015 Helsinki, Finland

来源：

IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium, Vols 1-8, Proceedings | 2005年

关键词：

snow; passive microwave radiometry; hydrological processes;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The retrieval of snow depth (SD) and snow water equivalent (SWE) using, a forward brightness temperature model-based assimilation technique to AMSR-E and ground-based data is discussed. The results obtained for Finland in the winter of 2004 are presented. In practise, it time series of passive microwave radiometer data is assimilated to SD estimates interpolated from weather station observations. The applied technique is based on Bayesian (statistical) inversion of an analytical brightness temperature model. The obtained results indicate that the data assimilation improves the performance of SD and SWE estimation when compared with the case of only using SD estimates interpolated from it discrete ground-based observation network.

引用

页码：2641 / 2644

页数：4

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