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2025
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| Online Access: | https://doi.org/10.5281/zenodo.16584954 |
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| _version_ | 1866902172168355840 |
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| author | Elshall, Ahmed Gebremedhin, Mewcha Amha |
| author_facet | Elshall, Ahmed Gebremedhin, Mewcha Amha |
| contents | <p>This repository provides comprehensive supporting material for the collaborative modeling-based simulation optimization framework that integrates stakeholder participation with state-of-the-art hydrologic simulation and evolutionary optimization. More than 100 simulation-optimization runs were conducted across various scenarios to assess sustainable groundwater yield. Key findings include: (1) The simulation optimization framework is useful. Projecting the current withdrawal that is 117 million gallons per day (mgd) to 2070 results in 100 mgd fresh water, while the optimal withdrawal solution for the same climate and land use conditions results in 150 mgd of fresh water. (2) Climate change is the main driver. Climate change impacts top-recharge, inland boundary recharge and sea level rise. While the optimal sustainable yield estimate given the base case is 150 mgd, if we considered climate change impacts on recharge and sea level rise, the optimal sustainable yield estimate drops to 96 mgd, and increases to 171 mgd under two different climate scenarios. (3) Sustainable yield can increase up to 10 mgd with increasing recharge due to improved land management. (4) Accounting for spring discharge and submarine groundwater discharge that are important for groundwater dependent systems and human activities, will decrease sustainable yield. (5) Different conceptual models regarding aquifer geology related to valley-fill barriers have a minor impact on sustainable yield estimation, such that using different conceptual models will affect optimal sustainable yield estimates by ± 2 mgd. In summary, our framework for evaluating sustainable yield that accounts for hydrologic, environmental, and socioeconomic consequences provides several insights for academic researchers, water regulators, and water managers in Hawai'i and other coastal regions.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_16584954 |
| institution | Zenodo |
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| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Supplementary material for collaborative modeling-based evaluation of groundwater sustainability in coastal aquifers using simulation optimization Elshall, Ahmed Gebremedhin, Mewcha Amha <p>This repository provides comprehensive supporting material for the collaborative modeling-based simulation optimization framework that integrates stakeholder participation with state-of-the-art hydrologic simulation and evolutionary optimization. More than 100 simulation-optimization runs were conducted across various scenarios to assess sustainable groundwater yield. Key findings include: (1) The simulation optimization framework is useful. Projecting the current withdrawal that is 117 million gallons per day (mgd) to 2070 results in 100 mgd fresh water, while the optimal withdrawal solution for the same climate and land use conditions results in 150 mgd of fresh water. (2) Climate change is the main driver. Climate change impacts top-recharge, inland boundary recharge and sea level rise. While the optimal sustainable yield estimate given the base case is 150 mgd, if we considered climate change impacts on recharge and sea level rise, the optimal sustainable yield estimate drops to 96 mgd, and increases to 171 mgd under two different climate scenarios. (3) Sustainable yield can increase up to 10 mgd with increasing recharge due to improved land management. (4) Accounting for spring discharge and submarine groundwater discharge that are important for groundwater dependent systems and human activities, will decrease sustainable yield. (5) Different conceptual models regarding aquifer geology related to valley-fill barriers have a minor impact on sustainable yield estimation, such that using different conceptual models will affect optimal sustainable yield estimates by ± 2 mgd. In summary, our framework for evaluating sustainable yield that accounts for hydrologic, environmental, and socioeconomic consequences provides several insights for academic researchers, water regulators, and water managers in Hawai'i and other coastal regions.</p> |
| title | Supplementary material for collaborative modeling-based evaluation of groundwater sustainability in coastal aquifers using simulation optimization |
| url | https://doi.org/10.5281/zenodo.16584954 |