气候变化领域集成服务门户(CCPortal): Evaluation of Daily Precipitation Extremes in Reanalysis and Gridded Observation-Based Data Sets Over Germany

CCPortal

DOI	10.1029/2020GL089624
	Evaluation of Daily Precipitation Extremes in Reanalysis and Gridded Observation-Based Data Sets Over Germany
	Hu G.; Franzke C.L.E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	Accurate and reliable gridded data sets are important for analyzing extreme weather and climate events. Specifically, these data sets should produce extreme value statistics that are close to reality. Here we use various statistical methods to evaluate the quality of four gridded data products in representing daily precipitation extremes. The data products are the COSMO-REA6 regional reanalysis, the ERA5 global reanalysis, and the E-OBS and HYRAS gridded observation-based data sets. The statistical methods we use offer a thorough insight into the quality of the different data sets by providing temporal and spatial extreme value statistics of daily precipitation. Our results show that all data sets except HYRAS underestimate the magnitude of daily precipitation extremes when compared with weather station data. Moreover, the reanalysis data sets give generally worse extreme value statistics of daily precipitation than the gridded observation-based data sets. In particular, the reanalysis data sets often fail in reproducing the accurate timing of observed daily precipitation extremes. ©2020. The Authors.
英文关键词	Statistics; Accurate timing; Climate event; Daily precipitations; Data products; Extreme value statistics; Reanalysis; Temporal and spatial; Weather stations; Quality control; data quality; data set; extreme event; observational method; precipitation intensity; statistical analysis; weather station; Germany
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169741
作者单位	Department of Meteorology, School of Mathematical, Physical and Computational Sciences, University of Reading, Reading, United Kingdom; Meteorological Institute, University of Hamburg, Hamburg, Germany; Center for Earth System Research and Sustainability, University of Hamburg, Hamburg, Germany; School of Engineering and Science, Jacobs University, Bremen, Germany
推荐引用方式 GB/T 7714	Hu G.,Franzke C.L.E.. Evaluation of Daily Precipitation Extremes in Reanalysis and Gridded Observation-Based Data Sets Over Germany[J],2020,47(18).
APA	Hu G.,&Franzke C.L.E..(2020).Evaluation of Daily Precipitation Extremes in Reanalysis and Gridded Observation-Based Data Sets Over Germany.Geophysical Research Letters,47(18).
MLA	Hu G.,et al."Evaluation of Daily Precipitation Extremes in Reanalysis and Gridded Observation-Based Data Sets Over Germany".Geophysical Research Letters 47.18(2020).