Review, evaluation and optimization of the National Water Resources Monitoring Networks Project
Aim to:
•undertake an evaluation of each the 10 monitoring networks in their present condition
•redesign and realign (where necessary) the network with the strategic and management requirements of the DWS and SA
•optimized the networks as far as possible
•ensure sustainable, relevant and up-to-date data of an acceptable quality.
Outcome: National Water Resource Monitoring Implementation Strateg

Haasbroek, B

Jager, G

Musariri, M

English

Duquesne University: Digital Commons

Duquesne University Duquesne Scholarship Collection Policy Limpopo Resilience Lab 9-14-2016 Presentation: Spatial Design of an Objective Driven Theoretical Water Resources Monitoring Network M Musariri South Africa Department of Water and Sanitation G Jager AECOM SA (Pty) Ltd B Haasbroek Follow this and additional works at: https://dsc.duq.edu/limpopo-policy  Part of the Environmental Law Commons, and the Water Law Commons Recommended Citation Musariri, M., Jager, G., & Haasbroek, B. (2016). Presentation: Spatial Design of an Objective Driven Theoretical Water Resources Monitoring Network. Retrieved from https://dsc.duq.edu/limpopo-policy/14 This Supplemental Material is brought to you for free and open access by the Limpopo Resilience Lab at Duquesne Scholarship Collection. It has been accepted for inclusion in Policy by an authorized administrator of Duquesne Scholarship Collection. PRESENTATION TITLEPresented by:Name SurnameDirectorateDateSPATIAL DESIGN OF AN OBJECTIVE DRIVEN THEORETICAL WATER RESOURCES MONITORING NETWORKB. Haasbroek, M. Musariri, G. de JagerSANCIAHS, University of KZN, Durban14 September 2016ACKNOWLEDGEMENTS• DWS: WIM (Mr. F. Guma, Mr. Z. Maswuma, Mr. M. Musariri, Dr. P. Wessels, Mr. D. van der Spuy, Mr. J. Naidoo)• DWS: RQIS• DWS: IWRP• All DWS Regional Office• >100 people providing input to processOBJECTIVES• Overview of the DWS project• Provide overview the network review process.• Describe process of developing objectives driven theoretical water resources monitoring processReview, evaluation and optimisation of the National Water Resources Monitoring Networks ProjectAim to:• undertake an evaluation of each the 10 monitoring networks in their present condition,• redesign and realign (where necessary) the network with the strategic and management requirements of the DWS and SA, • optimised the networks as far as possible, and• ensure sustainable, relevant and up-to-date data of an acceptable quality. Outcome:National Water Resource Monitoring Implementation StrategyRedesign, realign and optimise. • Extensive process undertaken to get status quo of current monitoring activities and integrity of data• Require independent way of evaluating existing network to assess adequacy of meeting of DWS needs.• What are the objectives of a national water resources monitoring network?• Who are the main clients?• Where and what should we be measuring?National Network Spatial Review ProcessCurrent Network SitesTheoretical Network SitesReviewNetwork• Network Inventory• Data Integrity• Gaps• Redundancies/ Duplications• Priorities & Info yieldRecommendation for optimal network configurationsWorkshops per WMA????Google EarthTheoretical Water Resources Monitoring Network. • A chance for a new beginning.• Totally independent of current monitoring activities.• Take no constraints into account (except the physical impossible)• Would be Theoretical Optimal Network that would meet all DWS: WIMs legal and other requirements to monitor water resources nationally.Development of a theoretical monitoring networkWhy monitor?What has priority?Where should we monitor?What and how often?Development of a theoretical monitoring networkWhy monitor?What has priority?Where should we monitor?What and how often?National Water Resources Monitoring Objectives National Water Resource Monitoring ObjectivesPriority classObjective Description1 Resource and infrastructure planningTo provide adequate monitoring data for determining the availability and quality of current and future water resources, aimed at providing strategic decision support for the equitable and sustainable allocation of resources to the population, environment and other economic sectors of society through planned infrastructure development and other interventions.2 Resource operations and managementTo provide timely monitoring data for the efficient operation and management of water resources to ensure the protection of resources and water users and to allocate water equitably and sustainably.3 Early warning systemsTo provide timeous water resources monitoring data for early-warning systems to mitigate negative impacts on humans, infrastructure, the economy and riverine and coastal ecosystems.4 Compliance and auditingTo provide water quality and quantity monitoring data to ensure compliance and auditing functions required for water use licensing, and other functions.Development of a theoretical monitoring networkWhy monitor?What has priority?Where should we monitor?What and how often?National Water Resources Monitoring Objectives Legal and Scientific processes to meet needsSub-objectives and processesMain objective Sub-objective Process Resource and infrastructure planning Quantify available resource Rainfall-runoff modelling Groundwater modelling International obligations Research and baseline catchments Reserve requirements Estuarine requirements Determine fitness for use of resources Quality trend and threshold analyses Salinity modelling  Eutrophication modelling Groundwater modelling Development options analysis system operating rules  Water resource systems modelling, including demand projections Infrastructure design Sediment analysis Flood analysis  Development of a theoretical monitoring networkWhy monitor?What has priority?Where should we monitor?What and how often?National Water Resources Monitoring Objectives Legal and Scientific Processes to meet needs Spatial monitoring criteria to support legal/scientific processesDevelopment of a theoretical monitoring networkWhy monitor?What has priority?Where should we monitor?What and how often?National Water Resources Monitoring Objectives Legal and Scientific Processes to meet needs Spatial monitoring criteria to support legal/scientific processesNational Spatial DatasetsDataset description Origin Source Status A) Hydrological considerations Quaternary, Tertiary, Secondary and Primary Catchments Source Water Resources of South Africa 2005 (WRC, 2008) Used 1:500 000 primary and secondary rivers Source Water Resources of South Africa 2005 (WRC,2008) Used Catchment Outlet Points Derived Generated from NASA ASTER 30m GDEM and Quaternary Catchment Data (WRC, 2008) Used International Boundaries Source CD NGI. Municipal Demarcation Board (2011) Used Natural cumulative mean annual runoff (106m3/a) Derived Generated from Water Resources of South Africa 2012 (WRC, 2015) MAR Data and WSAM Catchment Tree Used Natural incremental mean annual unit runoff (mm/a) Derived Generated from Water Resources of South Africa 2012 (WRC, 2015) MAR, Area and WSAM Catchment Tree data Used Topography (slopes) Derived Generated from NASA ASTER 30m GDEM Not used River network stream-orders - 30m DEM Derived Generated from NASA ASTER 30m GDEM Not used Sedimentation Source Water Resources of South Africa 2005 (WRC, 2008) Not Used MAP Source Water Resources of South Africa 2005 (WRC, 2008) Not Used MAE Source Water Resources of South Africa 2005 (WRC, 2008) Not Used  National Spatial DatasetsDataset description Origin Source Status B) Geo-hydrological Considerations Geology Source Council for Geosciences Used Transboundary aquifers Source  Hydrogeology map of Southern Africa 2010 (SADC) Used Vegter aquifer regions Source  An explanation set of national groundwater maps (WRC) Not used High yielding aquifers (aquifer classifications) Source  1:500 000 Hydrogeological map series (DWAF) Used Aquifer vulnerability Source  Groundwater Resource Assessment: Phase 2 (DWAF) Used Groundwater quality (EC, N, F) Source  Groundwater Resource Assessment: Phase 2 (DWAF) Used Baseflow sensitive groundwater areas Source  Groundwater Resource Assessment: Phase 2 (DWAF) Used  National Spatial Datasets (Continued)National Spatial Datasets (Continued)C) Environmental considerations Ecological water requirement (EWR) Sites Source and derived Resource Classification and RQO Study EWR sites obtained from DWS: Water Ecosystems. Other EWR sites obtained from various consultants  Used South African protected areas database Source SAPAD, (DEA, 2015) Used Present Ecological Status, Ecological Importance and Ecological Sensitivity Source Desktop PES, EI + ES (DWS, 2014) Used Groundwater Reserve areas Derived DWS: WES Used in some areas  National Spatial Datasets (Continued)Dataset description Origin Source Status D) Anthropogenic Considerations Inter-basin transfers Source Water Resources of South Africa 2005 (WRC, 2008) Used Dams (including DWS dams) Sources and derived DWS Hydstra Coordinates for active and inactive dams, Land Cover and DWS registered dam safety database. Used Landcover and negative landcover Derived Generated from SA Landcover © Geoterraimage (2014): Reduced classes and area summary per class Used Eskom Power Stations Derived Generated from www.eskom.co.za Used Fracking Geo-Exploration Zones Source Petroleum Agency of South Africa Used AMD Zones and Treatment Plants Source TCTA, 2011. Used WWTW and WTW Source DWS: Water Services Used Drought vulnerability map Source DWS:GI Used Governmental Groundwater Control Areas Source DWS:GI Used Groundwater dependent towns Source DWS:GI Used  Development of a theoretical monitoring networkWhy monitor?What has priority?Where should we monitor?What and how often?National Water Resources Monitoring Objectives Legal and Scientific Processes to meet needs Spatial monitoring criteria to support legal/scientific processesNational Spatial DatasetsTheoretical Monitoring SitesNational Network Spatial Review ProcessCurrent Network SitesTheoretical Network SitesReviewNetwork• Network Inventory• Data Integrity• Gaps• Redundancies/ Duplications• Priorities & Info yieldRecommendation for optimal network configurationsWorkshops per WMAPrioritised National Objectives Google EarthCurrent Monitoring SitesTheoretical Monitoring SitesConclusions• All monitoring network reviews, redesigns and optimisation should start with the objectives of the network.• Theoretical monitoring network development have the following benefits:– Keeps monitoring objectives in mind– Ignore constraints (network can be constrained later)– Provide spatial distribution that meets needs– Contribute towards less but more multi-functional sites– Great tool for evaluating existing networks for gaps, redundancies and priorities to existing and new sites. Status Quo Monitoring September 2014New Sites (incl replacement)Status Quo Monitoring September 2014Integrated Theoretical and Existing Network

Presentation: Spatial Design of an Objective Driven Theoretical Water Resources Monitoring Network

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Presentation: Spatial Design of an Objective Driven Theoretical Water Resources Monitoring Network

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