Pacific Islands Water Science Center

Publications

Publications from the Pacific Islands Water Science Center are geographically grouped.

Search the USGS Pubs Warehouse for products written for the general public and scientists.

Filter Total Items: 169
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Year Published: 1997

Geohydrology and Numerical Simulation of the Ground-Water Flow System of Molokai, Hawaii

A two-dimensional, steady-state, areal ground-water flow model was developed for the island of Molokai, Hawaii, to enhance the understanding of (1) the conceptual framework of the ground-water flow system, (2) the distribution of aquifer hydraulic properties, and (3) the regional effects of ground-water withdrawals on water levels and coastal...

Oki, Delwyn S.
Geohydrology and Numerical Simulation of the Ground-Water Flow System of Molokai, Hawaii; 1997; WRI; 97-4176; Oki, Delwyn S.

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Year Published: 1997

Ground-Water Geochemistry of Kwajalein Island, Republic of the Marshall Islands, 1991

Ground water on Kwajalein Island is an important source of drinking water, particularly during periods of low rainfall. Fresh ground water is found as a thin lens underlain by saltwater. The concentration of dissolved ions increases with depth below the water table and proximity to the shoreline as high-salinity seawater mixes with fresh ground...

Tribble, Gordon W.
Ground-Water Geochemistry of Kwajalein Island, Republic of the Marshall Islands, 1991; 1997; WRI; 97-4184; Tribble, Gordon W.

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Year Published: 1997

Water Budget for the Island of Molokai, Hawaii

Ground-water recharge is estimated from a monthly water budget calculated using long-term average rainfall and streamflow data, synthesized pan-evaporation data, and soil characteristics. The water-budget components are defined seasonally, through the use of monthly data, and spatially by geohydrologic areas, through the use of a geographic...

Shade, Patricia J.
Water Budget for the Island of Molokai, Hawaii; 1997; WRI; 97-4155; Shade, Patricia J.

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Year Published: 1997

Bibliography of Regional Aquifer-System Analysis Program of the US Geological Survey, 1978-96

The Regional Aquifer-System Analysis (RASA) Program of the U.S. Geological Survey was initiated in 1978 and was completed in 1995. The purpose of this program was to define the regional geohydrology and establish a framework of background information on geology, hydrology, and geochemistry of the Nation's important aquifer systems. This...

Sun, Ren Jen; Weeks, John B.; Grubb, Hayes F.
Bibliography of Regional Aquifer-System Analysis Program of the US Geological Survey, 1978-96; 1997; WRI; 97-4074; Sun, Ren Jen; Weeks, John B.; Grubb, Hayes F.

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Year Published: 1996

Geohydrology of the Island of Oahu, Hawaii

The island of Oahu, Hawaii, is the eroded remnant of two coalesced shield volcanoes, the Waianae Volcano and the Koolau Volcano. Shield-building lavas emanated mainly from the rift zones of the volcanoes. Subaerial eruptions of the Waianae Volcano occurred between 3.9 and 2.5 million years ago, and eruptions of the Koolau Volcano occurred between...

Hunt, Charles D.
Geohydrology of the Island of Oahu, Hawaii; 1996; PP; 1412-B; REGIONAL AQUIFER-SYSTEM ANALYSIS-OAHU, HAWAII; Hunt, Charles D., Jr.

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Year Published: 1996

Summary of the Oahu, Hawaii, Regional Aquifer-System Analysis

Oahu, the third largest of the Hawaiian islands, is formed by the eroded remnants of two elongated shield volcanoes with broad, low profiles. Weathering and erosion have modified the original domed surfaces of the volcanoes, leaving a landscape of deep valleys and steep interfluvial ridges in the interior highlands. The Koolau Range in eastern...

Nichols, William D.; Shade, Patricia J.; Hunt, Charles D.
Summary of the Oahu, Hawaii, Regional Aquifer-System Analysis; 1996; PP; 1412-A; Nichols, William D.; Shade, Patricia J.; Hunt, Charles D., Jr.

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Year Published: 1996

Water Budget and the Effects of Land-Use Changes on Ground-Water Recharge, Oahu, Hawaii

Detailed water budgets calculated for southern and southeastern Oahu are used with a geographic information system to develop simplified methods for estimating areal water budgets for predevelopment and mid-1980's land use. The methods were applied to estimate water budgets for the Waianae area of western Oahu, and for north-central, southern, and...

Shade, Patricia J.; Nichols, William D.
Water Budget and the Effects of Land-Use Changes on Ground-Water Recharge, Oahu, Hawaii; 1996; PP; 1412-C; Shade, Patricia J.; Nichols, William D.

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Year Published: 1996

Streamflow and Suspended-Sediment Loads Before and During Highway Construction, North Halawa, Haiku, and Kamooalii Drainage Basins, Oahu, Hawaii, 1983-91

Concern over potential effects from construction of the H-3 highway on Oahu, Hawaii, prompted a long-term study of streamflow and suspended-sediment transport at a network of five stream-gaging stations along the highway route. This report presents results for 1983-91, which included pre-construction and construction periods at all stream-gaging...

Hill, Barry R.
Streamflow and Suspended-Sediment Loads Before and During Highway Construction, North Halawa, Haiku, and Kamooalii Drainage Basins, Oahu, Hawaii, 1983-91; 1996; WRI; 96-4259; Hill, Barry R.

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Year Published: 1996

Water Budget for the Lahaina District, Island of Maui, Hawaii

Ground-water recharge is estimated as the residual component of a monthly water budget calculated using long-term average rainfall, streamflow, irrigation, pan-evaporation data, and soil characteristics. The water-budget components are defined seasonally, through the use of monthly data, and spatially by topographic and geologic areas, through the...

Shade, Patricia J.
Water Budget for the Lahaina District, Island of Maui, Hawaii; 1996; WRI; 96-4238; Shade, Patricia J.

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Year Published: 1996

Numerical Analysis of Ground-Water Flow and Salinity in the Ewa Area, Oahu, Hawaii

The coastal plain in the Ewa area of southwestern Oahu, Hawaii, is part of a larger, nearly continuous sedimentary coastal plain along Oahu's southern coast. The coastal sediments are collectively known as caprock because they impede the free discharge of ground water from the underlying volcanic aquifers. The caprock is a layered sedimentary...

Oki, Delwyn S.; Souza, William R.; Bolke, Edward I.; Bauer, Glenn R.
Numerical Analysis of Ground-Water Flow and Salinity in the Ewa Area, Oahu, Hawaii; 1996; OFR; 96-442; Oki, Delwyn S.; Souza, William R.; Bolke, Edward I.; Bauer, Glenn R.

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Year Published: 1996

Evaluation of the Surface-Water Quantity, Surface-Water Quality, and Rainfall Data-Collection Programs in Hawaii, 1994

This report documents the results of an evaluation of the surface-water quantity, surface-water quality, and rainfall data-collection programs in Hawaii. Fourteen specific issues and related goals were identified for the surface-water quantity program and a geographic information systems (GIS) data base was developed summarizing information for...

Fontaine, Richard A.
Evaluation of the Surface-Water Quantity, Surface-Water Quality, and Rainfall Data-Collection Programs in Hawaii, 1994; 1996; WRI; 95-4212; Fontaine, Richard A.

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Year Published: 1995

Water Budget for the Island of Kauai, Hawaii

A geographic information system model was created to calculate a monthly water budget for the island of Kauai. Ground-water recharge is the residual component of a monthly water budget calculated using long-term average rainfall, streamflow, and pan-evaporation data, applied irrigation-water estimates, and soil characteristics. The water-budget...

Shade, Patricia J.
Water Budget for the Island of Kauai, Hawaii; 1995; WRI; 95-4128; Shade, Patricia J.