气候变化领域集成服务门户(CCPortal): Precipitation Characteristics across the Three River Headwaters Region of the Tibetan Plateau: A Comparison between Multiple Datasets

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DOI	10.3390/rs15092352
	Precipitation Characteristics across the Three River Headwaters Region of the Tibetan Plateau: A Comparison between Multiple Datasets
	Du, Juan; Yu, Xiaojing; Zhou, Li; Ren, Yufeng; Ao, Tianqi
发表日期	2023
EISSN	2072-4292
卷号	15 期号:9
英文摘要	Precipitation is crucial for managing water resources in the Three River Headwaters (TRH) region of the Tibetan Plateau (TP). Gridded precipitation datasets across the TRH region exhibit significant discrepancies in their results. Previous studies have primarily focused on assessing average or extreme precipitation for a single dataset or several datasets. In this study, based on the observed gridded precipitation dataset (CN05.1), a comprehensive evaluation of the climatic features and extreme precipitation across the TRH region from 1983 to 2014 is performed by employing two gauge-based gridded datasets (GPCC and CRU), two satellite-derived precipitation datasets (P-CDR and IMERG), and two reanalysis precipitation datasets (ERA5 and CRA40). The results show that all datasets are consistent in reproducing the climatology, interannual variability, and annual cycle of precipitation in the TRH region. However, the different datasets exhibit significant discrepancies in characterizing the long-term trends and extreme precipitation events. P-CDR and GPCC provide a good representation of the spatial variability of the annual mean climatology. ERA5 and CRU are more reliable in capturing interannual variabilities. The long-term trends can be closely described by employing CRU. P-CDR and GPCC exhibit higher skills in terms of the annual cycle. P-CDR performs better than IMERG for daily precipitation in terms of probability distributions and other assessment metrics. P-CDR and IMERG have advantages and disadvantages in characterizing the nine extreme precipitation indices. This study demonstrates a comprehensive comparison method using multiple precipitation datasets to gain essential insight into the strengths and weaknesses of various datasets across the TRH region.
关键词	multiple datasets comparative assessment precipitation characteristic Three River Headwaters Region of the Tibetan Plateau
英文关键词	EXTREME PRECIPITATION; TEMPERATURE EXTREMES; GLOBAL PRECIPITATION; GAUGE OBSERVATIONS; CHINA; STREAMFLOW; INTERIM; SIMULATIONS; PERFORMANCE; REANALYSIS
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000987823800001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283771
作者单位	Sichuan University; Xinjiang University; Sichuan University
推荐引用方式 GB/T 7714	Du, Juan,Yu, Xiaojing,Zhou, Li,et al. Precipitation Characteristics across the Three River Headwaters Region of the Tibetan Plateau: A Comparison between Multiple Datasets[J],2023,15(9).
APA	Du, Juan,Yu, Xiaojing,Zhou, Li,Ren, Yufeng,&Ao, Tianqi.(2023).Precipitation Characteristics across the Three River Headwaters Region of the Tibetan Plateau: A Comparison between Multiple Datasets.REMOTE SENSING,15(9).
MLA	Du, Juan,et al."Precipitation Characteristics across the Three River Headwaters Region of the Tibetan Plateau: A Comparison between Multiple Datasets".REMOTE SENSING 15.9(2023).