DOI: 10.1016/j.jhydrol.2019.124446
论文题名: A proportionality-based multi-scale catchment water balance model and its global verification
作者: Zhang S. ; Yang Y. ; McVicar T.R. ; Zhang L. ; Yang D. ; Li X.
刊名: Journal of Hydrology
ISSN: 221694
出版年: 2020
卷: 582 语种: 英语
英文关键词: Catchment water balance
; Multiscale modelling
; Proportionality hypothesis
Scopus关键词: Climate models
; Evapotranspiration
; Runoff
; Time measurement
; Catchment water balance
; Conceptual water balances
; Multi-scale modelling
; Parsimonious modeling
; Potential evapotranspiration
; Proportionality hypothesis
; Spatial and temporal scale
; Water balance components
; Catchments
; catchment
; evapotranspiration
; hydraulic conductivity
; hydrological modeling
; leaf area index
; potential evapotranspiration
; streamflow
; water budget
英文摘要: Unifying the description of catchment hydrological partitioning across spatial and temporal scales has long been an important research topic within the hydrological community. As an effort to that, here we develop a conceptual water balance model based on the proportionality hypothesis (denoted PWBM) and for the first time, test the proportionality hypothesis using hydrologic observations across global catchments at varying time scales. The PWBM has a transparent and parsimonious model structure with only two model parameters, and requires precipitation, potential evapotranspiration and leaf area index as model inputs. To test PWBM, we apply the model to simulate streamflow (Q), evapotranspiration (E) and storage change (ΔS) in 22 large basins and 255 small basins globally and find an overall good model performance in reproducing all three water balance components at the daily (only in small basins), monthly, seasonal, annual and mean-annual time scales. Compared with three other conceptual hydrological models developed for specific time scales, the PWBM substantially outperforms the SCS model at the daily scale and the ABCD model at the monthly scale and performs similarly as the long-standing Budyko model at the mean-annual scale. In summary, our study verifies the robustness of PWBM and offers convincing evidence regarding the applicability of the proportionality hypothesis for enhanced hydrological system understanding at multiple spatial and temporal scales. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158911
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Earth Surface Process and Resource Ecology, School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing, China; State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, China; CSIRO Land and Water, Canberra, Australia; Australian Research Council Centre of Excellence for Climate System Science, Sydney, Australia
Recommended Citation:
Zhang S.,Yang Y.,McVicar T.R.,et al. A proportionality-based multi-scale catchment water balance model and its global verification[J]. Journal of Hydrology,2020-01-01,582