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DSD-INT 2018 New Orleans groundwater modelling - Roelofsen Stuurman

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Presentation by Frans Roelofsen and Roelof Stuurman (Deltares) at the iMOD International User Day 2018, during Delft Software Days - Edition 2018. Tuesday 13 November 2018, Delft.

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DSD-INT 2018 New Orleans groundwater modelling - Roelofsen Stuurman

  1. 1. New Orleans groundwater modelling iMOD Userday Geology and Groundwater modelling approaches using iMOD Frans Roelofsen (Roelof Stuurman) November 13, 2018
  2. 2. Greater New Orleans Urban Water Plan
  3. 3. Project New Orleans Regional Groundwater monitoring and subsidence reduction strategy Objectives: • Subsurface management • Subsidence analysis, forecasting and management • Shallow groundwater analysis and management • Salinization risk • Urban flooding “The aim is to build an instrument that is supported by all relevant stakeholders and easily accessible and understandable for stakeholders.”
  4. 4. iMOD Project Manager Topics:
  5. 5. Regional Model: subsidence / fresh salt 16 november 2018
  6. 6. Regional Model: subsidence / fresh salt 16 november 2018 MODFLOW SUB-CR MODFLOW SEWAT
  7. 7. Regional Model: subsidence / fresh salt
  8. 8. Regional Model: subsidence / fresh salt 16 november 2018
  9. 9. Regional Model: subsidence / fresh salt 16 november 2018
  10. 10. Urban groundwater model 16 november 2018
  11. 11. 1.Conserve► 2. Store► 3. Drain Sequence for minimizing the risk of flooding
  12. 12. Urban problem: Increase of paved area leads to • Less infiltration (groundwater recharge) • Higher peak discharges
  13. 13. 16 november 2018
  14. 14. 16 november 2018
  15. 15. Local model: urban geology 16 november 2018
  16. 16. Project New Orleans Challenge • Bring together all geology data, system understanding • Geological Model of Holocene layer • Modelling heavy rainfall events • Saturated zone • Interaction groundwater – sewer system • Saltwater intrusion • MODFLOW 6

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