Non-Hydrostatic Regcm4 (Regcm4-NH): Evaluation of Precipitation Statistics at the Convection-Permitting Scale over Different Domains
نویسندگان
چکیده
Recent studies over different geographical regions of the world have proven that regional climate models at convection-permitting scale (CPMs) improve simulation precipitation in many aspects, such as diurnal cycle, frequency, intensity, and extremes daily—but even more hourly—time scales. Here, we present an evaluation simulations with newly developed RegCM4-NH model run (CP-RegCM4-NH) for a decade-long period, three domains covering large European area. The use horizontal grid spacing ~3 km are driven by ERA-Interim reanalysis through intermediate driving ~12 parameterized deep convection. km-scale evaluated against suite hourly observation datasets high spatial resolutions compared to coarse-resolution order assess improvements from seasonal scale. results show CP-RegCM4-NH produces realistic representation than all domains. most significant were found heavy precipitation, both on daily time scales seasons. In general, tends correctly produce intense reduce frequency events one. On scale, CP highly region dependent, best Italy, France, Germany, largest biases Switzerland, Carpathians, Greece, especially during summer At improvement intensity distribution is clearer timescale. addition, extreme clearly improved CP-RegCM4-NH, particularly although overestimation some subregions can be found. Although between observations still exist, this first application resolution indicates clear benefit encourages further assessments added value configurations change projections.
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ژورنال
عنوان ژورنال: Atmosphere
سال: 2022
ISSN: ['2073-4433']
DOI: https://doi.org/10.3390/atmos13060861