OPTIMA October 2004 WP 01 Requirements and constraints

OPTIMA October 2004 WP 01 Requirements and constraints

Objectives § To compile comprehensive lists of water management issues, problems and respective information requirements across the set of case studies § To identify the major institutional structures, actors and stakeholders in water related decision making processes § To list and document the data requirements for the proposed methods § To analyse local data availability against these requirements § To analyse resulting constraints and alternative approaches where necessary 1

Three building blocks § Data – Model requirements and data availability § Water issues – Characterisation of the case-studies, in a way suitable for quantitative modelling § Stakeholders – Identification of local actors 2

Data - objectives § To list and document the data requirements for the proposed methods § To analyse local data availability against these requirements 3

Data – requirements § Geographical Domain Definition § Surface Water River Network Geometry and Topology § River basin objects § subcatchements § aquifers § lakes, reservoirs, hydraulic structures § demand notes § treatment nodes § … § Water quality data § Land use and land use changes 4

Data – next steps § We will circulate a checklist of data requirements § You will be asked to fill in, indicating data availability and metadata 5

Water issues - objectives § To compile comprehensive lists of water management issues, problems and respective information requirements across the set of case studies 6

Water issues - identification § Three components – Water demand – Water supply – Water management § Two types of information – Quantitative indicators (static and dynamic) – Assessment of relative importance, urgency etc. 7

Demand-related issues This section deals with the economic sectors and spheres of human activity which, through their demand of water resources, exert a pressure on both quantity and quality of the resource. 8

Water demand – the issues § Total water demand – Total demand recent trends § Socio-demographic trends and water demand from househoulds – Resident population and demographic trends – Density of population, urbanisation and urbanisation trends – Access to safe, sufficient water supply – Water related diseases –… 9

Water demand – the issues/2 § Economic trends and water demand (agriculture, industry, energy) – General § income per capita and recent economic trends – Agriculture § water demand from agriculture § irrigated areas § land use and change in land use – Industry § water demand from industry § heavy vs. light industry – Energy production § water demand from energy sector § Importance of hydropower and recent trends – Tourism and recreation § water demand from tourism § tourism and recent trends 10

Water supply issues This part deals with questions of quantity and quality of water resources and the efficiency of their use 11

Water supply – the issues § Total water supply and recent trends – Internal surface water and groundwater – Recyclable annd recycled water resources – Precipitations and temperatures – Vulnerability to climate change § Accessibility – Distance of water sources from main demand centres § Infrastructures – Artificial basins – Purification plants 12

Water management issues This part deals with the existence of clear and efficient mechanisms of water regulation, adequate management resources and effective stakeholder participation. 13

Water management – the issues § Institutions – Number of institutions dealing with water management – Relative role of private and public operators § Regulation – Characterisation of policies and regulations – Institutional forms of allocation § Water pricing – Prices of water and tariff structures § Infrastructures and technology – Efficiency in water use – Investment in water infrastrutures and water technologies 14

Water issues - next steps The list will be presented in the form of a questionnaire, in order to facilitate the collection of data about the quantitative and perceived relevance of the issues considered. Example: Access to potable water Percentage of resident population without access Is the access to potable water a problem in your case? Very high priority 5 High priority 4 Medium priority 3 Low priority 2 Not relevant 1 15