Abstract

Results of studies on analysis, correction, and assimilation of microwave and infrared satellite observations in the global data assimilation system of the Hydrometcenter of Russia are presented. Technique and results of adaptive correction (external calibration) of atmospheric sounding and imaging channels of the microwave radiometer MTVZA-GYa on board the Russian polar orbiting satellites of Meteor-M series are described. Assimilation of observations from the hyperspectral infrared Fourier spectrometer IFKS-2, which is also a part of the Meteor-M satellites payload, is presented. The assimilation technique includes a new scheme for selection of the most informative channels through orthogonalization of the so called Jacobians. Numerical experiments show that short-range forecasts almost equally benefit from assimilation of IKFS-2 and IASI data.

中文翻译：

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俄罗斯水文中心气象卫星观测资料的同化

摘要

介绍了俄罗斯水文中心全球数据同化系统中微波和红外卫星观测的分析、校正和同化研究结果。介绍了俄罗斯 Meteor-M 系列极轨卫星上微波辐射计 MTVZA-GYa 大气探测和成像通道的自适应校正（外部校准）技术和结果。介绍了高光谱红外傅里叶光谱仪 IFKS-2 的观测结果的同化，IFKS-2 也是 Meteor-M 卫星有效载荷的一部分。同化技术包括一种新方案，用于通过所谓的雅可比矩阵的正交化来选择信息量最大的通道。数值实验表明，短期预测几乎同样受益于 IKFS-2 和 IASI 数据的同化。