Abstract: Radiative transfer models used in processing TIROS-N sounder data via Physical retrieval schemes do not explicitly account for changes in CO2 mixing ratio. However, CO2 mixing ratios have increased by approximately 30 ppmv ...

Abstract: The effect of changes in the mixing ratio of C02 on the uniformly mixed gases component of the TIROS-N Observational Vertical Sounder radiances in High-Resolution Infrared Sounder (HIRS) channels is examined using a ...

Abstract: A continuous assimilation of high-density global satellite observations is required in order to improve numerical weather prediction analyses used to start forecasts. Until now, it was assumed that efficiency requirements ...