Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR027984 |
Predicting variable contributing areas, hydrological connectivity, and solute transport pathways for a Canadian Prairie basin | |
Diogo Costa; Kevin Shook; Chris Spence; Jane Elliott; Helen Baulch; Henry Wilson; John Pomeroy | |
2020-10-30 | |
发表期刊 | Water Resources Research |
出版年 | 2020 |
英文摘要 | In cold agricultural regions, seasonal snowmelt over frozen soils provides the primary source of runoff and transports large nutrient loads downstream. The post‐glacial landscape of the Canadian Prairies and Northern Plains of the United States creates challenges for hydrological and water quality modelling. Here, the application of conventional hydrological models is problematic because of cold regions hydrological and chemical processes, the lack of fluvially eroded drainage systems, large non‐contributing areas to streamflow and level topography. A new hydrodynamic model was developed to diagnose overland flow from snowmelt in this situation. The model was used to calculate the effect of variable contributing areas on (1) hydrological connectivity and the development of (2) tipping‐points in streamflow generation and (3) predominant chemical transport pathways. The agricultural Steppler Basin in Manitoba, Canada, was used to evaluate the model and diagnose snowmelt runoff. Relationships were established between contributing area and (1) snowmelt runoff intensity, (2) seasonal snowmelt volumes and duration, as well as (3) inundated, active and connected areas. Variations in the contributing area depended on terrain and snowmelt characteristics including wind redistribution of snow. Predictors of hydrological response and the size of the contributing area were developed which can be used in larger scale hydrological models of similar regions. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/301863 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Diogo Costa,Kevin Shook,Chris Spence,et al. Predicting variable contributing areas, hydrological connectivity, and solute transport pathways for a Canadian Prairie basin[J]. Water Resources Research,2020. |
APA | Diogo Costa.,Kevin Shook.,Chris Spence.,Jane Elliott.,Helen Baulch.,...&John Pomeroy.(2020).Predicting variable contributing areas, hydrological connectivity, and solute transport pathways for a Canadian Prairie basin.Water Resources Research. |
MLA | Diogo Costa,et al."Predicting variable contributing areas, hydrological connectivity, and solute transport pathways for a Canadian Prairie basin".Water Resources Research (2020). |
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