DOI: 10.5194/hess-18-4007-2014
Scopus记录号: 2-s2.0-84908043227
论文题名: The Wageningen Lowland Runoff Simulator (WALRUS): Application to the Hupsel Brook catchment and the Cabauw polder
作者: Brauer C ; C ; , Torfs P ; J ; J ; F ; , Teuling A ; J ; , Uijlenhoet R
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2014
卷: 18, 期: 10 起始页码: 4007
结束页码: 4028
语种: 英语
Scopus关键词: discharge
; flood forecasting
; parsimony analysis
; rainfall-runoff modeling
; reservoir
; seepage
; spatiotemporal analysis
; surface water
; uncertainty analysis
; vadose zone
; water supply
; Cabauw
; Hupsel Brook
; Netherlands
; Netherlands
; Utrecht [Netherlands]
英文摘要: The Wageningen Lowland Runoff Simulator (WALRUS) is a new parametric (conceptual) rainfall-runoff model which accounts explicitly for processes that are important in lowland areas, such as groundwater-unsaturated zone coupling, wetness-dependent flowroutes, groundwater-surface water feedbacks, and seepage and surface water supply (see companion paper by Brauer et al., 2014). Lowland catchments can be divided into slightly sloping, freely draining catchments and flat polders with controlled water levels. Here, we apply WALRUS to two contrasting Dutch catchments: the Hupsel Brook catchment and the Cabauw polder. In both catchments, WALRUS performs well: Nash-Sutcliffe efficiencies obtained after calibration on 1 year of discharge observations are 0.87 for the Hupsel Brook catchment and 0.83 for the Cabauw polder, with values of 0.74 and 0.76 for validation. The model also performs well during floods and droughts and can forecast the effect of control operations. Through the dynamic division between quick and slow flowroutes controlled by a wetness index, temporal and spatial variability in groundwater depths can be accounted for, which results in adequate simulation of discharge peaks as well as low flows. The performance of WALRUS is most sensitive to the parameter controlling the wetness index and the groundwater reservoir constant, and to a lesser extent to the quickflow reservoir constant. The effects of these three parameters can be identified in the discharge time series, which indicates that the model is not overparameterised (parsimonious). Forcing uncertainty was found to have a larger effect on modelled discharge than parameter uncertainty and uncertainty in initial conditions. © 2014 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78111
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Hydrology and Quantitative Water Management Group, Wageningen University, Wageningen, Netherlands
Recommended Citation:
Brauer C,C,, Torfs P,et al. The Wageningen Lowland Runoff Simulator (WALRUS): Application to the Hupsel Brook catchment and the Cabauw polder[J]. Hydrology and Earth System Sciences,2014-01-01,18(10)