干旱区生态环境知识资源中心(Arid): A linked surface water-groundwater modelling approach to more realistically simulate rainfall-runoff non-stationarity in semi-arid regions

Arid

DOI	10.1016/j.jhydrol.2019.05.039
	A linked surface water-groundwater modelling approach to more realistically simulate rainfall-runoff non-stationarity in semi-arid regions
	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	575 页码:273-291
英文摘要	Interactions between surface water (SW) and groundwater (GW) have been identified as a major contributing factor to non-stationarity in rainfall-runoff relationships. However, because existing rainfall-runoff models do not realistically account for these SW-GW interactions, they fail to robustly simulate runoff during multi-year droughts, especially in arid and semi-arid catchments that are relatively flat. Therefore, this study introduces a linked SW-GW modelling approach and tests it under different climatic conditions (Average, Dry and Wet periods) in two heterogeneous, semi-arid catchments in southeast Australia (SEA). The linked SW-GW modelling approach includes a fully-distributed SW (i.e. rainfall-runoff) model (SWATgrid) and a three-dimensional finite-difference GW model (MODFLOW). The results show that the linked SW-GW modelling approach produces highly improved runoff simulations for the study catchments, especially during dry conditions. These findings demonstrate the importance of accounting for SW-GW interactions when conducting rainfall-runoff modelling and highlights that failing to do so will result in overestimation of runoff during droughts - this is salient given projections for hotter and drier futures in many semi-arid regions. Although the study is focused on SEA, the insights gained are highly applicable for water managers in any region that experience high hydroclimatic variability or change.
英文关键词	SWATgrid MODFLOW Stream-aquifer interaction Groundwater Watershed hydrology Climate variability
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000488143000023
WOS关键词	CLIMATE-CHANGE ; PRECIPITATION-RUNOFF ; HYDROLOGICAL MODELS ; STREAMFLOW ; SWAT ; PERFORMANCE ; COMPLEXITY ; RECHARGE ; MODFLOW ; IMPACT
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/2XILL650/217167
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. A linked surface water-groundwater modelling approach to more realistically simulate rainfall-runoff non-stationarity in semi-arid regions[J],2019,575:273-291.
APA	Deb, Proloy,Kiem, Anthony S.,&Willgoose, Garry.(2019).A linked surface water-groundwater modelling approach to more realistically simulate rainfall-runoff non-stationarity in semi-arid regions.JOURNAL OF HYDROLOGY,575,273-291.
MLA	Deb, Proloy,et al."A linked surface water-groundwater modelling approach to more realistically simulate rainfall-runoff non-stationarity in semi-arid regions".JOURNAL OF HYDROLOGY 575(2019):273-291.