A New Parameterization Scheme for Shortwave Radiative Properties of Water Clouds

Autor:	Guotong Zhang, Lisheng Xu, Hongbin Chen
Rok vydání:	1995
Předmět:	Physics Atmospheric Science business.industry Flux Cloud computing Radius Molar absorptivity Computational physics Liquid water content Radiative transfer business Shortwave Astrophysics::Galaxy Astrophysics Dimensionless quantity Remote sensing
Zdroj:	Journal of Applied Meteorology. 34:101-106
ISSN:	1520-0450 0894-8763
DOI:	10.1175/1520-0450-34.1.101
Popis:	A new parameterization scheme for the shortwave radiative properties of water clouds is presented, using versatile cloud drop size distributions ( DSDs). As for single-scattering properties, a new parameterization for cloud optical thickness is proposed by using the separation of the dependence of r on the total number of theDSDs, the cloud thickness, and the liquid water content, combined with equivalent radius. The cloud bulk radiative properties are obtained from the delta-Eddington approximation for our cloud models. It is shown that the flux reflectivity, transmissivity, and absorptivity are uniquely fitted by a dimensionless parameter X or the cloud optical thickness 7. The parameterization is compared with other schemes. The features and potential use of the scheme are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9b9b7968bb7fee73fffed5a105f7ac6f https://doi.org/10.1175/1520-0450-34.1.101 Zobrazit plný text záznamu