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Parameterization of single scattering properties of mid‐latitude cirrus clouds for fast radiative transfer models using particle mixtures
Author(s) -
Bozzo Alessio,
Maestri Tiziano,
Rizzi Rolando,
Tosi Ennio
Publication year - 2008
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2008gl034695
Subject(s) - radiative transfer , cirrus , scattering , particle (ecology) , atmospheric radiative transfer codes , atmospheric sciences , environmental science , latitude , meteorology , geology , physics , optics , geodesy , oceanography
A new parameterization of single scattering properties has been developed for mid latitude cirrus clouds for application to weather prediction and global circulation models. Ice clouds are treated as a mixture of ice crystals with various habits. The bulk optical properties of ice crystals are parameterized as functions of the effective dimension ( D e ) of measured particle size distributions that are representative of mid latitude cirrus clouds. D e is itself parameterized as a function of temperature and ice water content. The paper describes the results obtained with a stand‐alone version of the radiation routine of the COSMO model and preliminary tests with the full forecast model in various meteorological situations characterized by extended high cirrus clouds over Europe.

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