Impacts of Physical Process Parameterizations on Simulation of the Diurnal Variations of Summer Precipitation over China
Received date: 2008-09-02
Revised date: 2008-10-20
Online published: 2008-11-10
The impacts of different convective cumulus, radiative transfer and land surface parameterization schemes on regional climate model′s performance in simulating diurnal cycle of the summer precipitation have been synthetically studied. The results show that land surface and radiative transfer schemes only influence the summer precipitation intensity, whereas they have less effects on the form of summer precipitation diurnal amplitude and the appearing time of precipitation maxima. However, the simulation of the summer precipitation diurnal cycle is very sensitive to the choice of convective cumulus schemes, whose skill are highly regime selective. The Grell scheme realistically captures the diurnal variations of the summer precipitation over east of Tibetan and middle Yangtze River valley. The Kuo and Anthes-Kuo schemes can well reproduce the diurnal cycle of the summer precipitation over Northeast and South China. The BM scheme only simulates the summer precipitation diurnal variations over South China. All of the four convective cumulus schemes can not simulate the two peaks of the summer precipitation diurnal cycle over Jianghuai and North China region.
ZHANG Yaocun , ZHU Jian , HUANG Anning . Impacts of Physical Process Parameterizations on Simulation of the Diurnal Variations of Summer Precipitation over China[J]. Advances in Earth Science, 2008 , 23(11) : 1174 -1184 . DOI: 10.11867/j.issn.1001-8166.2008.11.1174
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