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A Common Resource “ Workshop Sessions I and II A entitled "GW/SW Interactions I and II"

A Common Resource “ Workshop Sessions I and II A entitled "GW/SW Interactions I and II". Kevin Pietersen Water Research Commission. Purpose of Workshop. Present “current” understanding of GW/SW interaction processes (through presentation of a number of papers)

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A Common Resource “ Workshop Sessions I and II A entitled "GW/SW Interactions I and II"

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  1. A Common Resource“Workshop Sessions I and II A entitled "GW/SW Interactions I and II" Kevin Pietersen Water Research Commission

  2. Purpose of Workshop • Present “current” understanding of GW/SW interaction processes (through presentation of a number of papers) • Understanding and Quantifying groundwater’s contribution to baseflow (Roger Parsons). • Incorporating SW-GW interactions into the monthly Pitman rainfall-runoff model (Denis Hughes) • SW-GW interaction at small scales: implications for low flow estimates (Simon Lorentz) • Develop recommendations (for research and implementation)

  3. Drivers for Understanding? • Integrated Water Resource Management (IWRM) • Common Resource • National Water Policy and National Water Legislation • All water common resource…subject to national control…consistent status in law… • The location of water resource…in relation to land…shall not…confer preferential rights…riparian principle shall not apply • …the unity of the hydrologic cycle …interdependence of elements…basic hydrological unit is the catchment • Implementation, Scientific and Research Issues • Water Situation in South Africa • Resource Protection (RDM and SDC) • Water Use • Water Management • Future Water Uses • Process based studies

  4. Common Resource

  5. Challenges? • Integration of surface water and groundwater management – Are we serious? • Information about the groundwater resources situation is scarce, fragmented and unsuitable for management purposes – Inadequate knowledge base? • Water resource assessments – Address the occurrence in space and time of both SW/GW quantities and qualities. • Scientific Methods?

  6. Research Response? • Support method development for RDM and piloting methods. • Research projects (understanding GW/SW interaction processes). • Zululand • Low Flows and Stream flow Reduction Activities • WR2005 • Popular Handbook

  7. Recommendations? • Research Agenda • Implementation of RDM • “Integrated” Water Resource Assessments • Low Flows and Stream Flow Reduction Activities • …..

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