气候变化领域集成服务门户(CCPortal): Added value of kilometer-scale modeling over the third pole region: a CORDEX-CPTP pilot study

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DOI	10.1007/s00382-021-05653-8
	Added value of kilometer-scale modeling over the third pole region: a CORDEX-CPTP pilot study
	Zhou X.; Yang K.; Ouyang L.; Wang Y.; Jiang Y.; Li X.; Chen D.; Prein A.
发表日期	2021
ISSN	0930-7575
起始页码	1987
结束页码	1998
英文摘要	High-accuracy meteorological datasets are urgently required for understanding hydrological processes across the Third Pole (Qinghai-Tibetan Plateau, or TP), where meteorological stations are sparse. Low-resolution weather and climate simulations have significant errors in this region due to their inability to resolve meso-microscale processes associated with the complex terrain and convective clouds. This work presents a contribution to CORDEX Convection-Permitting Third Pole (CPTP) using dynamical downscaling of the latest global reanalysis data produced by the European Centre for Medium-Range Weather Forecasts (i.e., ERA5) at very high resolution (approximately 0.033°) based on the Weather Research and Forecasting (WRF) model. The results show that the kilometer-scale horizontal grid spacing simulation (WRF3) outperforms the ERA5 and the High Asia Refined regional reanalysis (HAR v2) in terms of smaller biases and root mean square errors, as well as higher spatial pattern correlation coefficients for 10-m wind speed and precipitation. Furthermore, WRF3 more realistically reproduces observed night-time precipitation peaks in the interior TP, while ERA5 and HAR v2 show erroneous afternoon precipitation peaks. Therefore, the added values achieved by resolving detailed physical processes when increasing grid spacing are considerable. This work demonstrates the potential for developing a reliable high resolution meteorological dataset required for research in this unique region. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
英文关键词	Convection-permitting; Kilometer-scale modeling; Third pole region; WRF
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/183555
作者单位	National Tibetan Plateau Data Center and Center for Excellence in Tibetan Plateau Earth Sciences, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, China; Department of Meteorology and Atmospheric Science, Pennsylvania State University, State College, United States; Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden; National Center for Atmospheric Research, Boulder, United States
推荐引用方式 GB/T 7714	Zhou X.,Yang K.,Ouyang L.,et al. Added value of kilometer-scale modeling over the third pole region: a CORDEX-CPTP pilot study[J],2021.
APA	Zhou X..,Yang K..,Ouyang L..,Wang Y..,Jiang Y..,...&Prein A..(2021).Added value of kilometer-scale modeling over the third pole region: a CORDEX-CPTP pilot study.Climate Dynamics.
MLA	Zhou X.,et al."Added value of kilometer-scale modeling over the third pole region: a CORDEX-CPTP pilot study".Climate Dynamics (2021).