气候变化领域集成服务门户(CCPortal): The first multi-model ensemble of regional climate simulations at kilometer-scale resolution, part I: evaluation of precipitation

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DOI	10.1007/s00382-021-05708-w
	The first multi-model ensemble of regional climate simulations at kilometer-scale resolution, part I: evaluation of precipitation
	Ban N.; Caillaud C.; Coppola E.; Pichelli E.; Sobolowski S.; Adinolfi M.; Ahrens B.; Alias A.; Anders I.; Bastin S.; Belušić D.; Berthou S.; Brisson E.; Cardoso R.M.; Chan S.C.; Christensen O.B.; Fernández J.; Fita L.; Frisius T.; Gašparac G.; Giorgi F.; Goergen K.; Haugen J.E.; Hodnebrog Ø.; Kartsios S.; Katragkou E.; Kendon E.J.; Keuler K.; Lavin-Gullon A.; Lenderink G.; Leutwyler D.; Lorenz T.; Maraun D.; Mercogliano P.; Milovac J.; Panitz H.-J.; Raffa M.; Remedio A.R.; Schär C.; Soares P.M.M.; Srnec L.; Steensen B.M.; Stocchi P.; Tölle M.H.; Truhetz H.; Vergara-Temprado J.; de Vries H.; Warrach-Sagi K.; Wulfmeyer V.; Zander M.J.
发表日期	2021
ISSN	0930-7575
起始页码	675
结束页码	701
英文摘要	Here we present the first multi-model ensemble of regional climate simulations at kilometer-scale horizontal grid spacing over a decade long period. A total of 23 simulations run with a horizontal grid spacing of ∼ 3 km, driven by ERA-Interim reanalysis, and performed by 22 European research groups are analysed. Six different regional climate models (RCMs) are represented in the ensemble. The simulations are compared against available high-resolution precipitation observations and coarse resolution (∼ 12 km) RCMs with parameterized convection. The model simulations and observations are compared with respect to mean precipitation, precipitation intensity and frequency, and heavy precipitation on daily and hourly timescales in different seasons. The results show that kilometer-scale models produce a more realistic representation of precipitation than the coarse resolution RCMs. The most significant improvements are found for heavy precipitation and precipitation frequency on both daily and hourly time scales in the summer season. In general, kilometer-scale models tend to produce more intense precipitation and reduced wet-hour frequency compared to coarse resolution models. On average, the multi-model mean shows a reduction of bias from ∼ −40% at 12 km to ∼ −3% at 3 km for heavy hourly precipitation in summer. Furthermore, the uncertainty ranges i.e. the variability between the models for wet hour frequency is reduced by half with the use of kilometer-scale models. Although differences between the model simulations at the kilometer-scale and observations still exist, it is evident that these simulations are superior to the coarse-resolution RCM simulations in the representing precipitation in the present-day climate, and thus offer a promising way forward for investigations of climate and climate change at local to regional scales. © 2021, The Author(s).
英文关键词	Kilometer-scale resolution; Multi-model ensemble simulations; Precipitation; Regional climate models
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183494
作者单位	Department of Atmospheric and Cryosphere Sciences, University of Innsbruck, Austria Innrain 52f, Innsbruck, 6020, Austria; CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France; The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy; NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway; REgional Model and geo-Hydrological Impacts (REMHI), Fondazione Centro Euro-Mediterraneo sui cambiamenti climatici, Caserta, Italy; Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt a.M., Frankfurt, Germany; German Climate Computing Center (DKRZ), Hamburg, Germany; Laboratoire ATmosphere Milieux Observations Spatiales/Institut Pierre Simon Laplace (IPSL), UVSQ Universite Paris-Saclay, Sorbonne Universite, CNRS, Guyancourt, France; Swedish Meteorological and Hydrological Institute (SMHI), Norrköping, Sweden; Met Office Hadley Centre, Exeter, United Kingdom; Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lis...
推荐引用方式 GB/T 7714	Ban N.,Caillaud C.,Coppola E.,et al. The first multi-model ensemble of regional climate simulations at kilometer-scale resolution, part I: evaluation of precipitation[J],2021.
APA	Ban N..,Caillaud C..,Coppola E..,Pichelli E..,Sobolowski S..,...&Zander M.J..(2021).The first multi-model ensemble of regional climate simulations at kilometer-scale resolution, part I: evaluation of precipitation.Climate Dynamics.
MLA	Ban N.,et al."The first multi-model ensemble of regional climate simulations at kilometer-scale resolution, part I: evaluation of precipitation".Climate Dynamics (2021).