Technical Note: 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
1st April 2008 and the 15th 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 Forecast 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
Citation: Matricardi, M.: Technical Note: An assessment of the accuracy of the RTTOV fast radiative transfer model using IASI data, Atmos. Chem. Phys., 9, 6899-6913, doi:10.5194/acp-9-6899-2009, 2009.