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Integrated Modelling For Nutrient Loading Of Polder Lakes, P.J.T.M. Van Puijenbroek, J. M. Knoop
Integrated Modelling For Nutrient Loading Of Polder Lakes, P.J.T.M. Van Puijenbroek, J. M. Knoop
International Congress on Environmental Modelling and Software
Many shallow lakes in the lower parts of the Netherlands are hypertrophic and dominated by algae blooms. The present ecological situation reflects the result of past and the present nutrient loading − a combination of point and diffuse loading from different sources. The difference in catchment and hydrology between lakes leads to a difference in nutrient loading and water residence time. Management options to reduce the trophic state have to be analysed. A model is presented that calculates the load of nutrients for 35 polder lakes in the Netherlands separated for different years and emission routes. Detailed hydrological information on …
An Innovative Modelling Concept For Integrated Water Resources Management Linking Hydrological Functioning And Socio-Economic Behaviour - The Hérault Catchment Case Study, South Of France, F. Giraud, S. Lanini, J. D. Rinaudo, V. Petit, N. Courtois
An Innovative Modelling Concept For Integrated Water Resources Management Linking Hydrological Functioning And Socio-Economic Behaviour - The Hérault Catchment Case Study, South Of France, F. Giraud, S. Lanini, J. D. Rinaudo, V. Petit, N. Courtois
International Congress on Environmental Modelling and Software
This paper presents a conceptual modelling framework for integrated water resourcesmanagement at the scale of the river basin. A simulator was developed using Matlab/Simulink software toensure the numerical formulation of the conceptual model. The simulator is problem-solving orientedallowing to investigate the responses of the hydrosystem according to various scenarios defined by thestakeholders of the basin. The simulator is mid-way between full-determinist models which are data- andtime-consuming, although more accurate in terms of quantitative outputs, and full-lumped models which aretoo simplistic to account for hydrogeological heterogeneity and realistic impacts of economic developmentscenarios, although easy to implement and time-saving. After having described …
An Integrated Modelling Approach For Assessing Water Policy Rules And Land Use Change Options, Juliet Gilmour, R. A. Letcher
An Integrated Modelling Approach For Assessing Water Policy Rules And Land Use Change Options, Juliet Gilmour, R. A. Letcher
International Congress on Environmental Modelling and Software
The primary aim of the study has been to develop a modelling framework to quantitatively assess the impact of water allocation rules upon economic and biophysical environments (primarily hydrological) at the catchment scale. This paper identifies development of the modelling approach to answer allocation questions by examining hydrological, land and agricultural production systems. The conceptual framework underpinning the modelling approach identifies the major aspects of integration between hydrological and production systems. The production model is integrated at various points within the hydrological cycle including rainfall, streamflow and runoff components. The outcome of the approach allows water to be moved around …
Experiences In An Integrated Assessment Of Water Allocation Issues In The Namoi River Catchment, Australia, R. A. Letcher, A. J. Jakeman
Experiences In An Integrated Assessment Of Water Allocation Issues In The Namoi River Catchment, Australia, R. A. Letcher, A. J. Jakeman
International Congress on Environmental Modelling and Software
The Namoi river catchment in northern NSW is an important irrigation region. However water resources in this region are increasingly stressed. Both surface and groundwater supplies are overallocated in many areas of the catchment. Management options to reduce allocations in line with available supply and environmental requirements are expected to have long term social, economic and environmental implications. This paper looks at an integrated assessment model which has been developed to assess long term outcomes of management options for water allocation in the catchment. The development of this tool has been undertaken using an iterative approach with key stakeholders. Feedback …