DOI: 10.5194/hess-21-1225-2017
Scopus记录号: 2-s2.0-85014537673
论文题名: Picturing and modeling catchments by representative hillslopes
作者: Loritz R ; , Hassler S ; K ; , Jackisch C ; , Allroggen N ; , Van Schaik L ; , Wienhöfer J ; , Zehe E
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2017
卷: 21, 期: 2 起始页码: 1225
结束页码: 1249
语种: 英语
Scopus关键词: Runoff
; Soil moisture
; Stream flow
; Hydrological modeling
; Hydrological process
; Physically based modeling
; Physically based models
; Rainfall-runoff events
; Soil water dynamics
; Streamflow generations
; Streamflow simulations
; Catchments
; catchment
; expert system
; hillslope
; hydrograph
; perception
; performance assessment
; rainfall-runoff modeling
; soil water
; streamflow
英文摘要: This study explores the suitability of a single hillslope as a parsimonious representation of a catchment in a physically based model. We test this hypothesis by picturing two distinctly different catchments in perceptual models and translating these pictures into parametric setups of 2-D physically based hillslope models. The model parametrizations are based on a comprehensive field data set, expert knowledge and process-based reasoning. Evaluation against streamflow data highlights that both models predicted the annual pattern of streamflow generation as well as the hydrographs acceptably. However, a look beyond performance measures revealed deficiencies in streamflow simulations during the summer season and during individual rainfall-runoff events as well as a mismatch between observed and simulated soil water dynamics. Some of these shortcomings can be related to our perception of the systems and to the chosen hydrological model, while others point to limitations of the representative hillslope concept itself. Nevertheless, our results confirm that representative hillslope models are a suitable tool to assess the importance of different data sources as well as to challenge our perception of the dominant hydrological processes we want to represent therein. Consequently, these models are a promising step forward in the search for the optimal representation of catchments in physically based models. © Author(s) 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79241
Appears in Collections: 气候变化事实与影响
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作者单位: Karlsruhe Institute of Technology (KIT), Institute of Water and River Basin Management, Karlsruhe, Germany; University of Potsdam, Institute of Earth and Environmental Science, Potsdam, Germany; Technical University Berlin, Institute of Ecology, Berlin, Germany
Recommended Citation:
Loritz R,, Hassler S,K,et al. Picturing and modeling catchments by representative hillslopes[J]. Hydrology and Earth System Sciences,2017-01-01,21(2)