干旱区生态环境知识资源中心(Arid): Performance and uncertainties of five popular satellite-based precipitation products in drought monitoring for different climate regions

Arid

DOI	10.1016/j.jhydrol.2023.130562
	Performance and uncertainties of five popular satellite-based precipitation products in drought monitoring for different climate regions
	Li, Yanzhong; Yan, Haiwen; Chen, Li; Huang, Manjie; Shou, Weiwei; Zhu, Liqin; Zhao, Lin; Xing, Yincong
通讯作者	Li, YZ
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2024
卷号	628
英文摘要	Satellite-based precipitation products (SPPs) can provide crucial precipitation estimations for large-scale, near real-time meteorological drought monitoring. However, the performances and uncertainties of SPPs in capturing drought information may vary greatly by product and climate region and are still poorly understood. In this study, we comprehensively evaluated the accuracy of five popular SPPs (MSWEP, TMPA 3B42, PERSIANN-CDR, CHIRPS, and COMRPH) in characterizing meteorological drought in mainland China. (1) Under global warming conditions, the standardized precipitation evapotranspiration index (SPEI) identified a significant decrease in drought associated with higher potential evapotranspiration (PET), which indicated the essential role of PET in determining drought evolution over different climate regions. (2) Among all the SPPs investigated, MSWEP, TMPA 3B42, and PERSIANN perform best in capturing the spatiotemporal pattern of the SPEI trend in the arid Tibetan Plateau regions, transition regions, and humid regions, respectively. In terms of drought category and drought characteristics, MSWEP and TMPA 3B42 perform very well for humid regions, and CHIRPS is better for cold and arid regions, with the poorest performance being found in CMORPH. However, no product performs well for all climate regions for drought monitoring. (3) The optimized parameters (OPs) are the dominant factor for drought uncertainties, followed by the interaction effect and SPPs, with great regional dependence. The OPs contributed the most to drought uncertainties over the relatively arid area of northern China, the interaction of OPs and SPPs did so in the humid area of China, and SPPs were found to contribute the most in the central Tibetan Plateau and some parts of humid regions. Our findings provide guidelines on the choice and application of existing SPP datasets for drought monitoring in different climate zones, as well as some clues to further improve the products over areas where they perform poorly.
英文关键词	Satellite-based precipitation products (SPPs) Meteorological drought SPEI Climate regions Drought characteristics
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001139748300001
WOS关键词	MODEL AVERAGING SCHEME ; GLOBAL PRECIPITATION ; FLASH DROUGHTS ; INDEX ; ENSEMBLE ; DATASETS ; CMORPH ; CHINA
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404544
推荐引用方式 GB/T 7714	Li, Yanzhong,Yan, Haiwen,Chen, Li,et al. Performance and uncertainties of five popular satellite-based precipitation products in drought monitoring for different climate regions[J],2024,628.
APA	Li, Yanzhong.,Yan, Haiwen.,Chen, Li.,Huang, Manjie.,Shou, Weiwei.,...&Xing, Yincong.(2024).Performance and uncertainties of five popular satellite-based precipitation products in drought monitoring for different climate regions.JOURNAL OF HYDROLOGY,628.
MLA	Li, Yanzhong,et al."Performance and uncertainties of five popular satellite-based precipitation products in drought monitoring for different climate regions".JOURNAL OF HYDROLOGY 628(2024).