干旱区生态环境知识资源中心(Arid): AGCT: a hybrid model for identifying abrupt and gradual change in hydrological time series

Arid

DOI	10.1007/s12665-019-8453-3
	AGCT: a hybrid model for identifying abrupt and gradual change in hydrological time series
	Zhang, Shuqi 1; Zhang, Hongbo 1,2; Li, Jicheng 1; Li, Jiaojiao 1
通讯作者	Zhang, Hongbo ; Li, Jiaojiao
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2019
卷号	78 期号:15
英文摘要	A new hybrid model called the AGCT model has been proposed for identifying an abrupt and gradual change in a hydrological time series. This hybrid model combining the over-whitening procedure, Pettitt test, and Mann-Kendall test can measure abrupt and gradual changes in hydrological series with mixed-mode shift and weight the attributions of two types of changes to the shift. In addition, four types of shifts were defined as gradual change, gradual-leading change, abrupt-leading change, and abrupt change in this study to describe the shifts observed well, which can provide more detailed and useful insights into changes in hydrological time series. Using the Wuding River Basin in China as a case study, the results indicated that the AGCT model can effectively separate the abrupt-change component from a complex shift, measuring the abrupt and gradual changes embedded in a streamflow time series, and further determine the shift type of the series. In addition, it is considered as a feasible method to steady the nonstationary streamflow data for frequency analysis.
英文关键词	Hydrological statistics SHIFT Gradual change Abrupt change Wuding River
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000476489300002
WOS关键词	WUDING RIVER-BASIN ; CLIMATE VARIABILITY ; ANNUAL STREAMFLOW ; MIDDLE REACHES ; ANNUAL RUNOFF ; ARID REGION ; TREND TEST ; WATER ; IMPACTS ; EVAPOTRANSPIRATION
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215430
作者单位	1.Changan Univ, Sch Environm Sci & Engn, 126 Yanta Rd, Xian 710054, Shaanxi, Peoples R China; 2.Minist Educ, Key Lab Subsurface Hydrol & Ecol Effect Arid Reg, Xian, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shuqi,Zhang, Hongbo,Li, Jicheng,et al. AGCT: a hybrid model for identifying abrupt and gradual change in hydrological time series[J],2019,78(15).
APA	Zhang, Shuqi,Zhang, Hongbo,Li, Jicheng,&Li, Jiaojiao.(2019).AGCT: a hybrid model for identifying abrupt and gradual change in hydrological time series.ENVIRONMENTAL EARTH SCIENCES,78(15).
MLA	Zhang, Shuqi,et al."AGCT: a hybrid model for identifying abrupt and gradual change in hydrological time series".ENVIRONMENTAL EARTH SCIENCES 78.15(2019).