Sensitivity to Convective Schemes on Precipitation Simulated by the Regional Climate Model MAR over Belgium (1987-2017)

被引：13
|
作者：
Doutreloup, Sebastien [1 ]
Wyard, Coraline [1 ]
Amory, Charles [1 ]
Kittel, Christoph [1 ]
Erpicum, Michel [1 ]
Fettweis, Xavier [1 ]
机构：
[1] Univ Liege, Climatol Lab, Dept Geog, UR SPHERES, B-4000 Liege, Belgium
来源：
ATMOSPHERE | 2019年 / 10卷 / 01期
关键词：
convective scheme; regional climate modelling; precipitation; Belgium; CUMULUS PARAMETERIZATION SCHEMES; WRF; RAINFALL; PERFORMANCE; RESOLUTION; ENSEMBLE; NETHERLANDS; STATISTICS; ADJUSTMENT; FLOODS;
D O I：
10.3390/atmos10010034
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The aim of this study is to assess the sensitivity of convective precipitation modelled by the regional climate model MAR (Modele Atmospherique Regional) over 1987-2017 to four newly implemented convective schemes: the Bechtold scheme coming from the MESO-NH regional model and the Betts-Miller-Janji, Kain-Fritsch and modified Tiedtke schemes coming from the WRF regional model. MAR version 3.9 is used here at a resolution of 10 km over a domain covering Belgium using the ERA-Interim reanalysis as forcing. The simulated precipitation is compared against SYNOP and E-OBS gridded precipitation data. Trends in total and convective precipitation over 1987-2017 are discussed. None of the MAR experiments compares better with observations than the others and they all show the same trends in (extreme) precipitation. Over the period 1987-2017, MAR suggests a significant increase in the mean annual precipitation amount over the North Sea but a significant decrease over High Belgium.
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页数：19
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