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Mean annual groundwater recharge rates for Oʻahu for historical and future drought conditions, and three land-cover conditions

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Citation

Mair, A., 2024, Mean annual groundwater recharge rates for Kauaʻi, Oʻahu, Molokaʻi, Maui, and the Island of Hawaiʻi, for a set of drought and land-cover conditions: U.S. Geological Survey data release, https://doi.org/10.5066/P9DDP1C6.

Summary

This shapefile represents the spatial distribution of mean annual groundwater recharge, in inches, for Oʻahu, Hawaiʻi for a set of drought and land-cover conditions represented in six water-budget scenarios. The six scenarios include: (1) historical drought rainfall and 2020 land cover, (2) future drought rainfall and 2020 land cover, (3) historical drought rainfall and Conversion 1 land cover, (4) future drought rainfall and Conversion 1 land cover, (5) historical drought rainfall and Conversion 2 land cover, and (6) future drought rainfall and Conversion 2 land cover. Historical drought rainfall is monthly rainfall during 1998–2002 from Frazier and others (2016), whereas future drought rainfall is monthly rainfall during 1998–2002 [...]

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Oahu_recharge_drought_scenarios_inches.zip
“Shapefile of mean annual groundwater recharge”
52.64 MB application/zip

Purpose

The groundwater recharge estimates in this shapefile were determined as part of a study to evaluate the effects of drought and cloud-water interception on groundwater recharge and wildfire hazard on Kauaʻi, Oʻahu, Molokaʻi, Maui, and the Island of Hawaiʻi for a set of drought and land-cover conditions, as described in Mair and others (2024). The recharge estimates may be used in numerical groundwater models that can evaluate the effects of groundwater withdrawals on groundwater levels, streamflow, coastal discharge, and salinities in public and private wells on Oʻahu.

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  • USGS Pacific Islands Water Science Center

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