A parameterization for downward longwave radiation from satellite meteorological dataAn accurate and efficient parameterization is developed which computes clear-atmosphere downward longwave flux in terms of the water vapor burden and water-vapor-weighted average temperature of the surface-700 mb region. The parameterization is based on detailed radiative transfer calculations performed for a wide meteorological data base, consisting of 180 atmospheric models generated from climatological data and 106 radiosonde-measured models. The standard error of the computed fluxes was found to be about 4 percent of the mean value. It is also pointed out that strong heating or cooling of the surface, as shown by many TOVS data sets, caused larger errors in the computed fluxes.
Document ID
19850050777
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gupta, S. K. (NASA Langley Research Center Atmospheric Sciences Div.; Kentron Technical Center, Hampton, VA, United States)
Darnell, W. L. (NASA Langley Research Center Hampton, VA, United States)
Staylor, W. F. (NASA Langley Research Center Atmospheric Sciences Div., Hampton, VA, United States)