Water Resources
Ordering Renewable Resources: Groundwater, Recycling, and Desalination
In this paper, we consider the role that wastewater recycling plays in the optimal extraction of groundwater, a renewable resource. We develop a two-sector dynamic optimization model to solve for the optimal trajectories of groundwater extraction and water recycling. For the case of spatially increasing recycling costs, recycled water serves as a supplemental resource in […]
Read MoreOrdering Renewables: Groundwater, Recycling and Desalination
Optimal recycling of minerals can be thought of as an integral part of the theory of the mine. In this paper, we consider the role that wastewater recycling plays in the optimal extraction of groundwater, a renewable resource. We develop a two-sector dynamic optimization model to solve for the optimal trajectories of groundwater extraction and […]
Read MorePublication: Optimal Management of a Hawaiian Coastal Aquifer with Nearshore Marine Ecological Interactions
We optimize groundwater management in the presence of marine consequences of submarine groundwater discharge (SGD). Concern for marine biota increases the optimal steady-state head level of the aquifer. The model is discussed in general terms for any coastal groundwater resource where SGD has a positive impact on valuable nearshore resources. Our application focuses on the […]
Read MorePublication: Optimal and Sustainable Groundwater Extraction
With climate change exacerbating over-exploitation, groundwater scarcity looms as an increasingly critical issue worldwide. Minimizing the adverse effects of scarcity requires optimal as well as sustainable patterns of groundwater management. We review the many sustainable paths for groundwater extraction from a coastal aquifer and show how to find the particular sustainable path that is welfare […]
Read MorePublication: Renewable Resource Management with Stock Externalities: Coastal Aquifers and Submarine Groundwater Discharge
We model coastal groundwater management and its effects on submarine groundwater discharge, nearshore marine water quality, and marine biota. Incorporating the stock externality effects on nearshore resources increases the optimal sustainable steady-state levels of both the aquifer head and the stock of a keystone native algae species. Numerical simulations are illustrated using data from the […]
Read MoreOptimal and Sustainable Groundwater Extraction
With the specter of climate change, groundwater scarcity looms as an increasingly critical issue worldwide. Minimizing the adverse effects of scarcity requires optimal as well as sustainable patterns of groundwater management. We review the many sustainable paths for groundwater extraction from a coastal aquifer and show how to find the particular sustainable path that is […]
Read MoreOptimal Management of a Hawaiian Coastal Aquifer with Near-Shore Marine Ecological Interactions
We optimize groundwater management in the presence of marine consequences of submarine groundwater discharge (SGD). Concern for marine biota increases the optimal steady-state head level of the aquifer. The model is discussed in general terms for any coastal groundwater resource where SGD has a positive impact on valuable near-shore resources. Our application focuses of the Kona Coast of Hawai’i, […]
Read MoreHawaii Statehood Conference
UHERO research will be highlighted at the upcoming Hawaii Statehood Conference. New Horizons for the Next 50 Years A Commemorative Conference will be held Friday, August 21 from 7:00 a.m. to 5:30 p.m. at the Hawai’i Convention Center in Honolulu. For more information visit: http://hawaii.gov/statehood
Read MoreInvasive Species Control over Space and Time: Miconia calvescens on Oahu, Hawaii
We use Geographical Information Systems (GIS) to map the current and future populations of an invasive species, Miconia calvescens, on the island of Oahu, Hawaii, and the potential damages to water quantity, water quality, endangered bird habitat, and native habitat housing endangered plants, snails, and insects. We develop a control cost function that includes locating and […]
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