DSD-SEA 2023 Large scale groundwater management - Meshgi
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Presentation by Ali Meshgi (Deltares) at the Seminar Models and decision-making in the wake of climate uncertainties, during the Deltares Software Days South-East Asia 2023. Wednesday, 22 February 2023, Singapore.
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DSD-SEA 2023 Large scale groundwater management - Meshgi
- 1. Ali Meshgi (Deltares) Large scale groundwater management 22-02-2023
- 12. Preparing for the future 12 DSD-SEA 2023 Large scale groundwater management
- 13. Community questions How much groundwater can we extract? How to develop sustainable groundwater management What is the environmental impact of groundwater extraction? What is the impact of climate change on our groundwater availability? What are the sources of groundwater contamination? 13 DSD-SEA 2023 Large scale groundwater management
- 14. Developing strategies for: • Groundwater • Surface water • Water use sectors • Infrastructure Based on: • System analysis • Field and lab tests • Monitoring • Models • Stakeholder engagement • Solutions / measures • Governance 14 DSD-SEA 2023 Large scale groundwater management
- 15. What can we, as Deltares, do? 15 Measuring and monitoring Before implementing measures, understand the water system first Act now to prevent future threats Raise awareness of the urgency DSD-SEA 2023 Large scale groundwater management
- 16. What can we, as Deltares, do? 16 Measuring and monitoring Before implementing measures, understand the water system first Act now to prevent future threats Raise awareness of the urgency Integrated modelling DSD-SEA 2023 Large scale groundwater management
- 17. What can we, as Deltares, do? 17 Measuring and monitoring Before implementing measures, understand the water system first Act now to prevent future threats Raise awareness of the urgency Time Series analysis DSD-SEA 2023 Large scale groundwater management
- 18. What can we, as Deltares, do? 18 Measuring and monitoring Before implementing measures, understand the water system first Act now to prevent future threats Raise awareness of the urgency Engineering solutions DSD-SEA 2023 Large scale groundwater management
- 19. What can we, as Deltares, do? 19 Measuring and monitoring Before implementing measures, understand the water system first Act now to prevent future threats Raise awareness of the urgency Stakeholder participation knowledge exchange with the community DSD-SEA 2023 Large scale groundwater management
- 20. Modeling needs to be easier and faster 20 Groundwater modelling with iMOD iMOD D-Water Quality (DELWAQ) D-Flow FM & wflow WOFOST MetaSWAP WQ-SUBCR iMOD-WQ iMOD-WQ- Heat RIBASIM DSD-SEA 2023 Large scale groundwater management
- 21. NHI – National Hydrologic Instrument Goal: one national hydrological instrument of the Netherlands for: • National surface water system • Regional surface water system • Unsaturated zone • Groundwater system 21 NHI development joint effort of several institutes DSD-SEA 2023 Large scale groundwater management
- 22. Data availability DSD-SEA 2023 Large scale groundwater management 22 groundwater salinity Geology, boreholes 22
- 23. Deltares ambition: easily set up a ground water model somewhere in the world … and connect to other hydrological concepts … 23 DSD-SEA 2023 Large scale groundwater management
- 24. Open source global scale groundwater modelling DSD-SEA 2023 Large scale groundwater management 24 https://publicwiki.deltares.nl/pages/viewpage.act ion?pageId=22184032 2. Clip 3. Model 1. Get data
- 25. Different global data sources
- 26. Data mining and machine learning to extract the required data Thorslund, J., Van Vliet, M.T.H., 2020. A global dataset of surface water and groundwater salinity measurements from 1980–2019. Sci. Data 7, 1–11. https://doi.org/10.1038/s41597-020-0562-z Gurmessa, S.K., MacAllister, D.J., White, D., Ourdraog, I., Lapworth, D., MacDonald, A., 2022. Assessing groundwater salinity across Africa. Sci. Total Environ. 828, 154283. https://doi.org/10.1016/j.scitotenv.2022.154283
- 27. Text mining process 27 Information Extraction Data Base Text Mining Outcomes Raw Text DSD-SEA 2023 Large scale groundwater management
- 28. 28 Trend in groundwater head over the period of 1958-2015 (source: global groundwater modelling) Sahel region ➢ With global modelling, knowledge on groundwater, local data and potential future climate, we can: ❑ Identify potential areas where changes in groundwater availability or drop of groundwater levels could be a driver for migration ❑ Assess the suitability of an area to host a refuge settlement based on groundwater availability and future changes (ideally to combine the above two items with surface water availability) Example on application of global groundwater model DSD-SEA 2023 Large scale groundwater management
- 29. 29 Transboundary aquifer fluxes (km3/y) Example on application of global groundwater model DSD-SEA 2023 Large scale groundwater management
- 30. 30 Example on application of global groundwater model offshore fresh groundwater resources (OFG) Zamrsky, D., Oude Essink, G.H.P., Sutanudjaja, E.H., Van Beek, L.P.H., Bierkens, M.F.P., 2022. Offshore fresh groundwater in coastal unconsolidated sediment systems as a potential fresh water source in the 21st century. Environ. Res. Lett. 17, 1–22. ➢ large volumes of fresh groundwater below the seafloor in many coastal areas around the world ➢ a temporary source of water in water-stressed coastal regions. ➢ total volume of these resources is estimated at 1.1 million km3 ➢ 10% of the amount of fresh groundwater that can be found on land DSD-SEA 2023 Large scale groundwater management