辐射计观测模拟系统的设计与误差分析

¹中国科学院遥感应用研究所,北京市大屯路甲20号,100101;²中国科学院寒区旱区研究所,兰州市东岗西路320号,730000;³北京师范大学地理学与遥感科学学院,北京市新外大街19号,100875

基金项目: 国家973计划资助项目(2007CB714403)

详细信息

Brightness Temperature Simulation System and Errors Structure Analysis

¹Institute of Remote Sensing Applications, Chinese Academy of Sciences, A20 Datun Road, Beijing 100101, China;(2 Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 320 West Donggang Road, Lanzhou 730000, China;(3 School of Geography,Beijing Normal University, 19 Xinwai Street, Beijing 100875, China

Funds: 国家973计划资助项目(2007CB714403)

摘要: 设计了一个结合大气、陆面和传感器特征,以辐射传输模型为基础的辐射计观测数据模拟系统。该系统可以直接应用到数据同化系统,为校正数据同化模式的静态参数提供基础,同时可以加深人们对辐射机理的理解。针对AMSR-E的配置,分析了地形、大气、模型参数不确定引起的系统模拟误差,发现介电模型和植被模型导致了较大的不确定性。
- 微波 /
- 模拟 /
- 辐射传输
Abstract: To meet the need of model development and assimilation development,we design a brightness temperature simulation system based on radiative transfer model, which combine the characteristics of atmosphere, land surface and the sensor. We use the model directly in satellite data assimilation system(SDAS) to correct its static parameters and improve the understanding. The errors structure analysis is performed on errors introduced by topography,atmosphere,uncertainties in the parameterizations of the forward model.
- microwave /
- simulation /
- radiative transfer