Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modelling Groundwater Returns to Streams From Irrigation Areas with Perched Water Tables
Quantifying the magnitude and timing of groundwater returns to streams from irrigation is important for the management of natural resources in irrigation districts where the quantity or quality of surface water can be affected. Deep vadose zones and perched water tables can complicate the modelling of these fluxes, and model outputs may be biased if these factors are misrepresented or ignored. This study was undertaken in the Murray Basin in southern Australia to develop and test an integrated modelling method that links irrigation activity to surface water impacts by accounting for all key hydrological processes, including perching and vadose zone transmission. The method incorporates an agronomic water balance to simulate root zone processes, semi-analytical transfer functions to simulate the deeper vadose zone, and an existing numerical groundwater model to simulate irrigation returns to the Murray River and inform the management of river salinity. The integrated modelling can be calibrated by various means, depending on context, and has been shown to be beneficial for management purposes without introducing an unnecessary level of complexity to traditional modelling workflows. Its applicability to other irrigation settings is discussed.
Modelling Groundwater Returns to Streams From Irrigation Areas with Perched Water Tables
Quantifying the magnitude and timing of groundwater returns to streams from irrigation is important for the management of natural resources in irrigation districts where the quantity or quality of surface water can be affected. Deep vadose zones and perched water tables can complicate the modelling of these fluxes, and model outputs may be biased if these factors are misrepresented or ignored. This study was undertaken in the Murray Basin in southern Australia to develop and test an integrated modelling method that links irrigation activity to surface water impacts by accounting for all key hydrological processes, including perching and vadose zone transmission. The method incorporates an agronomic water balance to simulate root zone processes, semi-analytical transfer functions to simulate the deeper vadose zone, and an existing numerical groundwater model to simulate irrigation returns to the Murray River and inform the management of river salinity. The integrated modelling can be calibrated by various means, depending on context, and has been shown to be beneficial for management purposes without introducing an unnecessary level of complexity to traditional modelling workflows. Its applicability to other irrigation settings is discussed.
Modelling Groundwater Returns to Streams From Irrigation Areas with Perched Water Tables
Dougal Currie (Autor:in) / Tariq Laattoe (Autor:in) / Glen Walker (Autor:in) / Juliette Woods (Autor:in) / Tony Smith (Autor:in) / Kittiya Bushaway (Autor:in)
2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Mapping water-supply protection areas for leaky, perched karst groundwater systems
| British Library Conference Proceedings | 1997
Modelling Recharge from Irrigation Developments with a Perched Water Table and Deep Unsaturated Zone
| DOAJ | 2020
| British Library Conference Proceedings | 2006
Hydrodynamics of Perched Mounds
| ASCE | 2021
PERCHED RIVER TREATMENT DEVICE AND SAND STIRRING SHIP FOR PERCHED RIVER TREATMENT
| Europäisches Patentamt | 2023