Pacific Islands Water Science Center

Data and Tools

USGS water data in the Pacific Islands.

Search for sites and data using the NWIS Mapper which is the map interface to locations of sites with USGS water data.

Filter Total Items: 29
Date published: January 1, 2019

Summary of soil field-saturated hydraulic conductivity, hydrophobicity, preferential-flow, and particle-size measurements collected at four study sites on the island of Maui, Hawaii, September 2017–August 2018

The U.S. Geological Survey and the University of Hawaii at Manoa, in cooperation with the County of Maui Department of Water Supply and the State of Hawaii Commission on Water Resource Management, initiated a field data collection program to provide information for determining how infiltration rates and soil hydrophobicity are dependent on plant species type within forested areas on the island...

Date published: January 1, 2019

Summary of soil field-saturated hydraulic conductivity, hydrophobicity, and preferential-flow measurements and soil laboratory-testing results collected at three sites on the islands of Maui and Hawaii, Hawaii, July 2016–January 2018

This data release contains soil-properties for one site (Nakula) on the Island of Maui and two sites (Nahuku and Lapahoehoe) on the Island of Hawaii. Maps showing the site locations are included in one of this dataset’s files (Study_sites_summary.pdf). The soil properties were compiled into three files, each formatted with comma-separated values. Field-saturated hydraulic...

Date published: January 1, 2019

Mean annual water-budget components for the Island of Maui, Hawaii, for projected climate conditions, CMIP5 RCP8.5 2071-99 scenario rainfall and 2017 land cover

This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for the Island of Maui, Hawaii for a projected climate condition representative of phase 5 of the Coupled Model Intercomparison Project (CMIP5) Representative Concentration Pathway 8.5 (RCP8.5) 2071-99 scenario rainfall and 2017 land cover, as described in USGS SIR 2019-5064. The water-budget...

Date published: January 1, 2019

Mean annual water-budget components for the Island of Maui, Hawaii, for projected climate conditions, CMIP3 A1B 2080-99 scenario climate and 2017 land cover

This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for the Island of Maui, Hawaii for a projected climate condition representative of phase 3 of the Coupled Model Intercomparison Project (CMIP3) A1B 2080-99 scenario climate and 2017 land cover, as described in USGS SIR 2019-5064. The water-budget components for each model subarea were computed...

Date published: January 1, 2019

Mean annual water-budget components for the Island of Maui, Hawaii, for average climate conditions, 1978-2007 rainfall and 2017 land cover

This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for the Island of Maui, Hawaii for an average (or present-day) climate condition and 2017 land cover, as described in USGS SIR 2019-5064. The water-budget components for each model subarea were computed for a scenario representative of present-day climate conditions during 1978-2007 using a...

Date published: January 1, 2019

Fena Valley Reservoir water-balance model input files for historic (1990‒2009) and future (2080‒2099) climate conditions

The FVR_2016_historic_future folder contains the input files needed to run the Fena Valley Reservoir water-balance model for the historic and future periods and a README_FVR_2016_historic_future.txt document that describes the contents of this folder and how to execute the water-balance model (https://doi.org/10.5066/F7HH6HV4) with the historic...

Date published: January 1, 2019

Southern Guam watershed model input files for historic (1990‒2009) and future (2080‒2099) climate conditions

The PRMS_2016_historic_future folder contains the climate by HRU files (CBH_files folder) needed to drive each of the modeled regions in southern Guam for the historic and future periods and a README_PRMS_2016_historic_future.txt document that describes the contents of this folder and how to update the previously published model files (https://doi.org...

Date published: January 1, 2019

Southern Guam watershed model and Fena Valley Reservoir water-balance model input files for historic (1990‒2009) and future (2080‒2099) climate conditions

This data release contains the input files for the watershed and water-balance models that simulate historic (1990‒2009) and future (2080‒2099) climate conditions on Guam. These simulations are described in the associated Scientific Investigations Report, “Water Resources on Guam—Potential Impacts of and Adaptive Response to Climate Change" by Stephen B...

Date published: January 1, 2019

Mean annual water-budget components for Guam for historic (1990-2009) and future (2080-2099) climate conditions

The zipped folder (Mean_annual_water_budget_Guam_1990-2009_and_2080-2099.zip) for this data release contains two polygon shapefiles and associated metadata files. Both shapefiles contain spatially distributed estimates of mean annual groundwater recharge and other water-budget components, in inches, for Guam. “Mean_annual_water-budget_components_Guam_1990-2009.shp” contains...

Date published: January 1, 2019

Leaf-level gas exchange and leaf-area index measurements collected at four study sites on the island of Maui, Hawaii, September 2017 - August 2018

The University of Hawaii at Manoa and the U.S. Geological Survey, in cooperation with the County of Maui Department of Water Supply and the State of Hawaii Commission on Water Resource Management, initiated a field data-collection program to measure the transpiration characteristics of native and non-native invasive plants within forested areas on the island of Maui. The field data collection...

Date published: March 1, 2018

Summary of dissolved pesticide concentrations in discrete surface-water samples collected on the islands of Kauaʻi and Oʻahu, Hawaiʻi November 2016–April 2017

This dataset includes pesticide-concentration results for 32 discrete water samples that were collected on the islands of Kauai and Oahu between November 21, 2016 and April 29, 2017. The water samples were collected for the Pesticide-Monitoring Program of Surface Water in the State of Hawaii. This dataset consists of five files: a summary file, a sample-list file, two results files, and this...

Date published: February 1, 2018

Mean annual water-budget components for the Island of Kauai, Hawaii, for predevelopment conditions, 1978-2007 rainfall and 1870 land cover (version 2.0)

The shapefile associated with this metadata file represents the spatial distribution of mean annual water-budget components, in inches, for the Island of Kauai, Hawaii. The water-budget components in the shapefile were computed by a water-budget model for a scenario representative of predevelopment conditions (1978–2007 rainfall and 1870 land cover), as described in USGS Scientific...