Atmos. Chem. Phys. Discuss., 9, 9491-9535, 2009
www.atmos-chem-phys-discuss.net/9/9491/2009/
doi:10.5194/acpd-9-9491-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
An assessment of the accuracy of the RTTOV fast radiative transfer model using IASI data
M. Matricardi
ECMWF, Shinfield Park, Reading, Berkshire, RG2 9AX, UK

Abstract. IASI measurements of spectral radiances made between the 1 April 2008 and the 15 April 2008 are compared with simulations performed using the RTTOV fast radiative transfer model utilizing regression coefficients based on different line-by-line models. The comparisons are performed within the framework of the European Centre for Medium-Range Weather Forecasts Integrated Forecasting System using fields of temperature, water vapour and ozone obtained from short-range forecasts. Simulations are performed to assess the accuracy of the RTTOV computations and investigate relative differences between the line-by-line models and the quality of the spectroscopic databases on which the RTTOV coefficients are based.

Citation: Matricardi, M.: An assessment of the accuracy of the RTTOV fast radiative transfer model using IASI data, Atmos. Chem. Phys. Discuss., 9, 9491-9535, doi:10.5194/acpd-9-9491-2009, 2009.
 
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