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SUTRA model used to evaluate long-term groundwater availability in the Waihe'e, 'Īao, and Waikapū aquifer systems, Maui, Hawaiʻi

Dates

Release Date
2022-01-01
Start Date
1926-01-01
End Date
2099-12-31
Publication Date

Citation

Kolja, R., 2022, SUTRA model used to evaluate long-term groundwater availability in the Waihe'e, 'Īao, and Waikapū aquifer systems, Maui, Hawaiʻi: U.S. Geological Survey data release, https://doi.org/10.5066/P959B45F.

Summary

Groundwater levels have declined since the 1940s in the Wailuku area of central Maui, Hawaiʻi, on the eastern flank of West Maui volcano, mainly in response to increased groundwater withdrawals. Available data since the 1980s also indicate a thinning of the freshwater lens and an increase in chloride concentrations of pumped water from production wells. These trends, combined with projected increases in demand for groundwater in central Maui, have led to concerns over groundwater availability and have highlighted a need to improve understanding of the hydrologic effects of proposed groundwater withdrawals in the Waiheʻe, ʻĪao, and Waikapū areas of central Maui. A three-dimensional, variable-density solute-transport model (SUTRA) was [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

sir2021-5113_thumbnail.jpg thumbnail 1.22 MB image/jpeg
source.zip 13.85 MB application/zip
readme.txt 19.67 KB text/plain
modelgeoref.txt 781 Bytes text/plain
bin.zip 3.97 MB application/zip
georef.zip 6.33 KB application/zip
model.zip 494.41 MB application/zip
output.islandwide.modflow.zip 5.5 MB application/zip
output.model.steady.state.zip 190.86 MB application/zip
output.model.transient.zip 255.81 MB application/zip
output.scenario1.zip 340.96 MB application/zip
output.scenario2.zip 338.99 MB application/zip
output.scenario3.zip 339.48 MB application/zip
output.scenario4.zip 339.37 MB application/zip
output.scenario5.zip 339.57 MB application/zip
output.scenario6.zip 339.14 MB application/zip
output.scenario7.zip 339.31 MB application/zip

Purpose

The three-dimensional, variable-density solute-transport groundwater model was created to evaluate the effects of seven selected withdrawal/recharge scenarios on long-term changes in water level and 50-percent ocean-water salinity depth, and simulated salinity of water withdrawn by existing and proposed production wells in central Maui, Hawaiʻi. An existing USGS numerical groundwater-flow and -transport model of central Maui (Gingerich, 2008) was used as a basis to develop an updated numerical model to address information needs related to: (1) quantifying the effects of withdrawal from existing or proposed wells on water levels and salinity of groundwater, (2) distributing withdrawals to increase the overall amount of fresh groundwater developed in the Waiheʻe, ʻĪao, and Waikapū aquifer systems, and (3) estimating the long-term effects of potential reductions in groundwater recharge on groundwater availability. The development of the model included in this data release is documented in U.S. Geological Survey Scientific Investigations Report 2021-5113 (https://doi.org/10.3133/sir20215113).
Image of the model domain and active area of the model.
Image of the model domain and active area of the model.

Map

Communities

  • Model Data Management Function (MDMF)

Tags

Provenance

These data were originally released on the Water Mission Area National Spatial Data Infrastructure Node and were migrated to sciencebase.gov in 2023.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P959B45F

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