The assimilation of Infrared Atmospheric Sounding Interferometer radiances at ECMWF

被引：132

作者：

Collard, A. D. ^{[1
]}

McNally, A. P. ^{[1
]}

机构：

[1] European Ctr Medium Range Weather Forecasts, Reading RG2 9AX, Berks, England

来源：

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY | 2009年 / 135卷 / 641期

关键词：

IASI; data assimilation; satellite data; COMPRESSION;

D O I：

10.1002/qj.410

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The assimilation of Infrared Atmospheric Sounding Interferometer (IASI) radiances at the European Centre for Medium-Range Weather Forecasts (ECMWF) is described. The configuration of the IASI radiance assimilation system relies heavily on the experience obtained from using Atmospheric InfraRed Sounder (AIRS) data over the previous five years. IASI observations are found to be of high quality, particularly in the important region of the 15 mu m CO2 temperature-sounding band. The choice of channels to be actively assimilated is focused on this 15 mu m band and experiments have shown that the additional use of IASI data produces a statistically significant positive impact on forecast quality. Copyright (C) 2009 Royal Meteorological Society

引用

页码：1044 / 1058

页数：15

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