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contributor authorChou, Ming-Dah
contributor authorRidgway, William L.
contributor authorYan, Michael M-H.
date accessioned2017-06-09T14:31:39Z
date available2017-06-09T14:31:39Z
date copyright1993/07/01
date issued1993
identifier issn0022-4928
identifier otherams-20976.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4157263
description abstractA medium-sized band model for water vapor and CO2 absorption is developed using the one-parameter scaling approximation. The infrared spectrum is divided into 10 bands. The Planck-weighted diffuse transmittance is reduced to a function dependent only upon the scaled absorber amount and fit by an exponential sum. By selecting specific sets of absorption coefficients for exponential-sum fitting, computations of fluxes and cooling rate are made very fast. Compared to a broadband model, the accuracy, speed, and versatility are all enhanced. With absorption due to water vapor line, continuum, CO2 as well as O3 included, the parameterization introduces an error of < 1.5 W m?2 in fluxes and <0.15°C day?1 in the tropospheric and lower stratospheric cooling rates.
publisherAmerican Meteorological Society
titleOne-Parameter Scaling and Exponential-Sum Fitting for Water Vapor and CO2 Infrared Transmission Functions
typeJournal Paper
journal volume50
journal issue14
journal titleJournal of the Atmospheric Sciences
identifier doi10.1175/1520-0469(1993)050<2294:OPSAES>2.0.CO;2
journal fristpage2294
journal lastpage2303
treeJournal of the Atmospheric Sciences:;1993:;Volume( 050 ):;issue: 014
contenttypeFulltext


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