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Title of Journal: Clim Dyn

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Abbravation: Climate Dynamics

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Springer-Verlag

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10.1007/bf00286695

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1432-0894

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Assessing the performance of the CFSR by an ensemb

Authors: Wesley Ebisuzaki Li Zhang
Publish Date: 2011/04/20
Volume: 37, Issue: 11-12, Pages: 2541-2550
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Abstract

The Climate Forecast System Reanalysis CFSR Saha et al in Bull Am Meteor Soc 911015–1057 2010 is the latest global reanalysis from the National Centers of Environmental Prediction NCEP In this study we compare the CFSR tropospheric analyses to two ensembles of analyses The first ensemble consists of 12 h analyses from various operational analyses for the year 2007 This ensemble shows how well the CFSR analyses can capture the daily variability The second ensemble consists of monthly means from the available reanalyses from the years 1979 to 2009 which is used to examine the trends With the 2007 ensemble we find that the CFSR captures the daily variability in 2007 better than the older reanalyses and is comparable to the operational analyses With the ensemble of monthly means the CFSR is often the outlier The CFSR shows a strong warming trend in the tropics which is not seen in the observations or other reanalysesCraig Long supplied the sonde data for Singapore and Accension Island Suru Saha and the rest of the CFSR team for creating and supplying the data for the CFSR Emily Becker downloaded much of the JRA25 and MERRA data Bhaskar Jha for supplying the CFSRAMIP simulations and the reviewers for their comments which improved this paper

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