Implementation of a double moment cloud microphysics scheme in the UK met office regional numerical weather prediction model

نویسندگان

چکیده

Cloud microphysics parametrizations control the transfer of water between phases and hydrometeor species in numerical weather prediction climate models. As a fundamental component modelling systems cloud can determine intensity timing precipitation, extent longevity cover its impact on radiative balance, directly influence near surface metrics such as temperature wind. In this paper we introduce demonstrate performance double moment microphysical scheme (CASIM: AeroSol Interacting Microphysics) both midlatitude tropical settings using same model configuration. Comparisons are made against configuration current operational single microphysics, CASIM configurations that use fixed in-cloud droplet number or compute concentration from aerosol environment. We configuring results precipitation rate histograms match microphysics. setting, indicate performs well configuration, but improves certain aspects field greater light ( < $$ 1 mm · \cdotp hr − {}^{-1} ) rain around frontal features. outperforms evident improved comparison with radar derived rates.

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ژورنال

عنوان ژورنال: Quarterly Journal of the Royal Meteorological Society

سال: 2023

ISSN: ['1477-870X', '0035-9009']

DOI: https://doi.org/10.1002/qj.4414