干旱区生态环境知识资源中心(Arid): Evaluating drought monitoring utility of the top-down and bottom-up satellite precipitation products over mainland China from a three-dimensional perspective

Arid

DOI	10.1016/j.jhydrol.2023.130153
	Evaluating drought monitoring utility of the top-down and bottom-up satellite precipitation products over mainland China from a three-dimensional perspective
	Zhang, Yuefen; Wu, Chuanhao; Yeh, Pat J. -F.; Li, Jianzhu; Li, Jiayun; Hu, Bill X.; Feng, Ping
通讯作者	Wu, CH
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2023
卷号	625
英文摘要	Satellite-based quantitative precipitation estimates (QPEs) have shown great potential in the precipitationrelated extremes estimation. However, little is known about the capability of different QPEs to monitor the dynamic evolutions of drought on various spatio-temporal scales. Here, the drought utility of two top-down QPEs (i.e., Climate Hazards Group InfraRed Precipitation with Stations, CHIRPS; Integrated Multi-SatellitE Retrievals for Global precipitation measurement-Final run, IMERG-F) and one bottom-up QPE (i.e., Soil Moisture to RainAdvanced SCATterometer, SM2RAIN-ASCAT), is evaluated comprehensively in mainland China, based on three commonly used drought indices (Standardized Precipitation Index, Standardized Precipitation Evapotranspiration Index, Composite index of meteorological drought). The results indicate that the top-down QPEs generally show better performance in detecting drought occurrence over the humid and low-altitude regions in eastern China than the arid and high-altitude regions in western China. IMERG-F performs best in detecting drought occurrence in the entire mainland China, followed by CHIRPS, and the least satisfactory by SM2RAIN-ASCAT. The trajectory of drought centroids and the temporal variability of drought characteristics are highly dependent on both the drought indices selected and QPEs used. IMERG-F and CHIRPS can better reproduce the trajectories of large-scale drought events (e.g., the locations of drought origin and termination) than SM2RAINASCAT. The ability in tracking the drought centroid trajectory of all three QPEs is higher at the smaller spatial scales, also it improves from the semi-arid to humid regions. Our results highlight the superiority of the top-down QPEs in drought monitoring compared with the bottom-up QPE in mainland China, particularly over the humid regions. The application of SM2RAIN-ASCAT in drought monitoring to the large-scale arid areas should be cautious.
英文关键词	CHIRPS IMERG-F SM2RAIN-ASCAT Accuracy assessment Centroid trajectory Three-dimensional perspective
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001079506200001
WOS关键词	PEARL RIVER-BASIN ; SOIL-MOISTURE ; HYDROLOGICAL DROUGHT ; 20TH-CENTURY DROUGHT ; RAINFALL DATA ; ANALYSIS TMPA ; DATA SET ; INDEX ; DATASETS ; CLIMATE
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/2XILL650/397413
推荐引用方式 GB/T 7714	Zhang, Yuefen,Wu, Chuanhao,Yeh, Pat J. -F.,et al. Evaluating drought monitoring utility of the top-down and bottom-up satellite precipitation products over mainland China from a three-dimensional perspective[J],2023,625.
APA	Zhang, Yuefen.,Wu, Chuanhao.,Yeh, Pat J. -F..,Li, Jianzhu.,Li, Jiayun.,...&Feng, Ping.(2023).Evaluating drought monitoring utility of the top-down and bottom-up satellite precipitation products over mainland China from a three-dimensional perspective.JOURNAL OF HYDROLOGY,625.
MLA	Zhang, Yuefen,et al."Evaluating drought monitoring utility of the top-down and bottom-up satellite precipitation products over mainland China from a three-dimensional perspective".JOURNAL OF HYDROLOGY 625(2023).