A vision was developed concerning the future modelling framework for 'Integrated Regional Water Management'. The framework contains: - methods for management, analysis, assessment and presentation of data - models with respect to the water system and water use - methods for assessment and selection of measures - databases for generic and case-specific data - user interfaces with facilities for preparing of the input data and case management The plan is based on the slightly updated vision presented in a previous study. Important characteristics of the envisaged modelling framework are (see figure above): - to allow research on the interaction of the (natural) water system and the many uses of the water system, on the basis of easy (de)coupling of components - the development of a consistent interface for all kinds of users, ranging from specialists to managers, that contains all generic data, while components not needed can be hidden - flexibility, allowing a quick preliminary diagnosis at various levels of detail - the combination of data analysis, model simulations, measurement assessment, for optimal support to the decision making process - component based development to allow coupling with components developed by others than Delft Hydraulics The priorities and organisation of the development of such a modelling framework have been defined in the report. The following short-term priorities have been identified: - design and development of a GIS-based platform for the management and analysis of data - investigation into a systematic but at the same time pragmatic method for estimating the reliability (accuracy) of model simulation results - tailoring of data conversion and platform transfer according to the DelftWISE software architecture - nested coupling of groundwater model MODFLOW and SOBEK-Lowland (RR, FLOW) - improvement, extension and documentation of the process library of the water quality model DELWAQ - extension of the waste load model WLM for diffuse sources and coupling to SOBEK-Lowland (RR, WAQ) - extension of SOBEK-Urban with a water quality and surface water loading module - improvement and extension of the habitat evaluation modules MORRES and EKOS in a GIS environment The plan is to be used as guideline for the development of components for the IWRM-modelling framework. |