干旱区生态环境知识资源中心(Arid): Mechanisms influencing non-stationarity in rainfall-runoff relationships in southeast Australia

Arid

DOI	10.1016/j.jhydrol.2019.02.025
	Mechanisms influencing non-stationarity in rainfall-runoff relationships in southeast Australia
	Deb, Proloy 1; Kiem, Anthony S.1; Willgoose, Garry 2
通讯作者	Deb, Proloy
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2019
卷号	571 页码:749-764
英文摘要	Arid and semi-arid regions experience large hydroclimatic variability and decadal-scale droughts. During droughts, the reduced water availability alters the biophysical properties of the catchments which leads to non-stationarity in rainfall-runoff (r-r) relationships. Uncertainty exists regarding the mechanisms causing r-r non-stationarity, especially at seasonal scales. This study analyses endogenous and exogenous catchment mechanisms which could possibly influence r-r relationships in two case study catchments in southeast Australia (SEA). The case study catchments are chosen such that they are representative of arid to semi-arid catchments that experience large climatic variability and decadal-scale droughts. The results demonstrate that endogenous catchment mechanisms (i.e. groundwater table, baseflow and vegetation) have stronger influences on non-stationarity in r-r relationships than exogenous catchment mechanisms like temperature and potential evapo-transpiration. These findings highlight the importance of understanding changes in r-r relationships in order to develop more realistic and reliable hydrological models that are needed to quantify and adapt to the impacts of changing catchment or hydroclimatic conditions. While this study is focussed on SEA the findings are relevant to all catchments that experience large climatic variability and decadal-scale droughts.
英文关键词	One-way ANOVA Kolmogorov-Smirnov test Australia Drought Surface water-groundwater interaction Land use change
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000462692100062
WOS关键词	CLIMATE-CHANGE IMPACTS ; PRECIPITATION-RUNOFF ; SOIL-MOISTURE ; RIVER-BASIN ; DROUGHT ; EVAPOTRANSPIRATION ; CATCHMENT ; HARGREAVES ; STREAMFLOW ; THORNTHWAITE
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/2XILL650/217139
作者单位	1.Univ Newcastle, Fac Sci, Sch Environm & Life Sci, CWCL, Callaghan, NSW 2308, Australia; 2.Univ Newcastle, Fac Engn & Built Environm, Sch Engn, Callaghan, NSW 2308, Australia
推荐引用方式 GB/T 7714	Deb, Proloy,Kiem, Anthony S.,Willgoose, Garry. Mechanisms influencing non-stationarity in rainfall-runoff relationships in southeast Australia[J],2019,571:749-764.
APA	Deb, Proloy,Kiem, Anthony S.,&Willgoose, Garry.(2019).Mechanisms influencing non-stationarity in rainfall-runoff relationships in southeast Australia.JOURNAL OF HYDROLOGY,571,749-764.
MLA	Deb, Proloy,et al."Mechanisms influencing non-stationarity in rainfall-runoff relationships in southeast Australia".JOURNAL OF HYDROLOGY 571(2019):749-764.