干旱区生态环境知识资源中心(Arid): Multi-dimensional evaluation of four monthly long-term and high-resolution gridded precipitation datasets on the Qinghai-Tibet Plateau

Arid

DOI	10.1016/j.atmosres.2024.107226
	Multi-dimensional evaluation of four monthly long-term and high-resolution gridded precipitation datasets on the Qinghai-Tibet Plateau
	Meng, Nan; Yang, Yanzheng; Qi, Wenchao; Zhu, Jingyi; Dai, Xuhuan; Li, Ruonan; Ma, Jinfeng; Zheng, Hua
通讯作者	Yang, YZ
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2024
卷号	300
英文摘要	The reliability assessment of gridded precipitation datasets (GPDs) is vital for various precipitation-related studies, particularly in poorly gauged regions as the Qinghai-Tibet Plateau (QTP). However, existing studies predominantly focuses more on mainstream GPDs with low spatiotemporal resolution, making it challenging to meet the requirements for widespread applications. There is an urgent need for a systematic assessment of long-term and high-resolution GPDs. In this study, we considered four GPDs (HRLT, TPHiPr, PENG, and CHIRPS) with a spatial resolution above 0.05 degrees during 1981-2019, evaluating their monthly performance across three dimensions: spatial accuracy, temporal accuracy, and precipitation event detection ability. The results revealed the following: (1) TPHiPr exhibited the highest spatial accuracy (R-2 = 0.81), and the four GPDs consistently performed the worst in arid areas (R-2 = 0.59 +/- 0.15) and the best in semi-humid areas (R-2 = 0.80 +/- 0.02). (2) PENG attained the highest temporal accuracy (NSE = -0.56), and the four GPDs performed the worst in winter (NSE = -1.06 +/- 0.9) and the best in autumn (NSE = 0.08 +/- 0.16). (3) HRLT and TPHiPr demonstrated superior precipitation event detection abilities compared to others. The four GPDs consistently exhibited high detection abilities for light monthly precipitation events (0-10 mm) and low detection abilities for heavy monthly precipitation events (150-200 mm). This study underscored the potential advantages of GPDs in the three dimensions, and also highlighted their limitations in arid areas, winter, and heavy precipitation events, thus providing directions for further GPDs' accuracy improvement.
英文关键词	Gridded precipitation datasets Spatial accuracy Temporal accuracy Precipitation events detection ability The Qinghai -Tibet Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001176858800001
WOS关键词	IMERG ; TEMPERATURE ; RETRIEVALS ; RAINFALL
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402992
推荐引用方式 GB/T 7714	Meng, Nan,Yang, Yanzheng,Qi, Wenchao,et al. Multi-dimensional evaluation of four monthly long-term and high-resolution gridded precipitation datasets on the Qinghai-Tibet Plateau[J],2024,300.
APA	Meng, Nan.,Yang, Yanzheng.,Qi, Wenchao.,Zhu, Jingyi.,Dai, Xuhuan.,...&Zheng, Hua.(2024).Multi-dimensional evaluation of four monthly long-term and high-resolution gridded precipitation datasets on the Qinghai-Tibet Plateau.ATMOSPHERIC RESEARCH,300.
MLA	Meng, Nan,et al."Multi-dimensional evaluation of four monthly long-term and high-resolution gridded precipitation datasets on the Qinghai-Tibet Plateau".ATMOSPHERIC RESEARCH 300(2024).