气候变化领域集成服务门户(CCPortal): Evaluation of a climate simulation over the Yellow River Basin based on a regional climate model (REMO) within the CORDEX

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DOI	10.1016/j.atmosres.2021.105522
	Evaluation of a climate simulation over the Yellow River Basin based on a regional climate model (REMO) within the CORDEX
	Pang G.; Wang X.; Chen D.; Yang M.; Liu L.
发表日期	2021
ISSN	0169-8095
卷号	254
英文摘要	Understanding the current regional climate is of great importance for better estimating future climate change and assessing its influence on water resources and ecosystems. The Yellow River provides important water resources for industrial and domestic activities. However, climate simulations over the Yellow River Basin (YRB) have rarely been attempted. In this study, downscaled mean climate over the upper and middle reaches of the YRB using the REgional MOdel (REMO) at 0.22° spatial resolution under the Coordinated Regional Downscaling Experiment (CORDEX), driven by ERA-Interim reanalysis, was evaluated by comparison against one gridded observational dataset (CN05.1) for the period 1982–2016. Two reanalysis datasets (ERA5 and ERA-Interim) were used to reveal possible causes for the differences between the simulations and observations. REMO reproduced the spatial patterns of mean temperature satisfactorily despite some evident deviations. REMO had a predominantly mixed bias (a cold bias for the upper reach and a warm bias for the rest) in all four seasons. Due to the effects of differential snow cover, temperature biases were elevation-dependent, especially in winter months. REMO broadly reproduced the spatial variability of precipitation with a wet bias, which could be largely attributed to anomalous moisture flux transport. In terms of interannual variability, the observational data showed significant warming across all four seasons, while REMO simulated weaker warming trends. Precipitation trends were positive in all seasons except in summer, but REMO failed to capture the trends in winter and spring. The observed elevation-dependent warming (EDW) was reproduced by REMO, except in spring. The EDW was likely to be explained by the snow-albedo feedback, owing to the apparent decrease in snow cover at high elevations. © 2021 Elsevier B.V.
英文关键词	Climate change; Elevation dependency; Regional climate model; Snow-albedo feedback; Yellow River Basin
来源期刊	Atmospheric Research
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236820
作者单位	Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou, 730070, China; State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, 40530, Sweden; National-Local Joint Engineering Research Center of Technologies and Applications for National Geographic State Monitoring, Lanzhou, 730070, China; Gansu Provincial Engineering Laboratory for National Geographic State Monitoring, Lanzhou, 730070, China; Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
推荐引用方式 GB/T 7714	Pang G.,Wang X.,Chen D.,et al. Evaluation of a climate simulation over the Yellow River Basin based on a regional climate model (REMO) within the CORDEX[J]. 中国科学院西北生态环境资源研究院,2021,254.
APA	Pang G.,Wang X.,Chen D.,Yang M.,&Liu L..(2021).Evaluation of a climate simulation over the Yellow River Basin based on a regional climate model (REMO) within the CORDEX.Atmospheric Research,254.
MLA	Pang G.,et al."Evaluation of a climate simulation over the Yellow River Basin based on a regional climate model (REMO) within the CORDEX".Atmospheric Research 254(2021).