干旱区生态环境知识资源中心(Arid): An evaluation of the use of IMERG products for representing drought in a typical rocky karst region experiencing rocky desertification in Guangxi, China

Arid

DOI	10.1080/2150704X.2022.2128700
	An evaluation of the use of IMERG products for representing drought in a typical rocky karst region experiencing rocky desertification in Guangxi, China
	Gan, Fuwan; Diao, Xiang; Tan, Kongrong; Cao, Guangxu; Zhang, Yuan; Zhong, Xianci; Gao, Yang
通讯作者	Gao, Y
来源期刊	REMOTE SENSING LETTERS
ISSN	2150-704X
EISSN	2150-7058
出版年	2022
卷号	13 期号:11 页码:1100-1109
英文摘要	Droughts are very common and threatening disasters in regions where groundwater storage is difficult. High-resolution satellite estimations such as the Integrated Multi-satellitE Retrievals for Global Precipitation Measurement (IMERG) provide a new solution for drought monitoring in areas with this special terrain. In this study, the pre-evaluation of products is conducted before drought monitoring, then based on the Standardized Precipitation Index (SPI), the application in drought presentation is evaluated over Guangxi, a Chinese province where the karst areas are being eroded by rocky desertification. The main results are as follows: (1) The monthly estimating by IMERG products is reliable, and the best performance for daily scale appears in regions with rich rainfall and severe rocky desertification, while high errors occur in the same place. (2) IMERG products can be an alternative to gauge-based data in drought monitoring over karst rocky desertification regions like Guangxi, where multiple droughts happened from 2000 to 2017. The SPI of IMERG_F has the best spatial consistency, and better results are presented over humid rocky desertification regions.
英文关键词	IMERG SPI drought monitoring
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000864569600001
WOS关键词	PRECIPITATION ANALYSIS TMPA
WOS类目	Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394258
推荐引用方式 GB/T 7714	Gan, Fuwan,Diao, Xiang,Tan, Kongrong,et al. An evaluation of the use of IMERG products for representing drought in a typical rocky karst region experiencing rocky desertification in Guangxi, China[J],2022,13(11):1100-1109.
APA	Gan, Fuwan.,Diao, Xiang.,Tan, Kongrong.,Cao, Guangxu.,Zhang, Yuan.,...&Gao, Yang.(2022).An evaluation of the use of IMERG products for representing drought in a typical rocky karst region experiencing rocky desertification in Guangxi, China.REMOTE SENSING LETTERS,13(11),1100-1109.
MLA	Gan, Fuwan,et al."An evaluation of the use of IMERG products for representing drought in a typical rocky karst region experiencing rocky desertification in Guangxi, China".REMOTE SENSING LETTERS 13.11(2022):1100-1109.