Delwyn S Oki
Delwyn Oki is a hydrologist with the Pacific Islands Water Science Center in Honolulu, Hawaiʻi.
Science and Products
Filter Total Items: 47
Ground-water resources in Kaloko-Honokohau National Historical Park, Island of Hawaii, and numerical simulation of the effects of ground-water withdrawals Ground-water resources in Kaloko-Honokohau National Historical Park, Island of Hawaii, and numerical simulation of the effects of ground-water withdrawals
Within the Kaloko-Honokohau National Historical Park, which was established in 1978, the ground-water flow system is composed of brackish water overlying saltwater. Ground-water levels measured in the Park range from about 1 to 2 feet above mean sea level, and fluctuate daily by about 0.5 to 1.5 feet in response to ocean tides. The brackish water is formed by mixing of seaward flowing...
Authors
Delwyn S. Oki, Gordon W. Tribble, William R. Souza, Edward L. Bolke
Geohydrology of the Central Oahu, Hawaii, ground-water flow system and numerical simulation of the effects of additional pumping Geohydrology of the Central Oahu, Hawaii, ground-water flow system and numerical simulation of the effects of additional pumping
A two-dimensional, finite-difference, ground-water flow model was developed for the central Oahu flow system, which is the largest and most productive ground-water flow system on the island. The model is based on the computer code SHARP which simulates both freshwater and saltwater flow. The ground-water model was developed using average pumping and recharge conditions during the 1950's...
Authors
Delwyn S. Oki
Geohydrology and Numerical Simulation of the Ground-Water Flow System of Molokai, Hawaii 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 discharge. The model uses the finite-element...
Authors
Delwyn S. Oki
Ground water atlas of the United States: Segment 13, Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands Ground water atlas of the United States: Segment 13, Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands
No abstract available.
Authors
James A. Miller, R.L. Whitehead, Delwyn S. Oki, Stephen B. Gingerich, Perry G. Olcott
Numerical Analysis of Ground-Water Flow and Salinity in the Ewa Area, Oahu, Hawaii 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 system consisting of interbedded marine and...
Authors
Delwyn S. Oki, William R. Souza, Edward I. Bolke, Glenn R. Bauer
Science and Products
Filter Total Items: 47
Ground-water resources in Kaloko-Honokohau National Historical Park, Island of Hawaii, and numerical simulation of the effects of ground-water withdrawals Ground-water resources in Kaloko-Honokohau National Historical Park, Island of Hawaii, and numerical simulation of the effects of ground-water withdrawals
Within the Kaloko-Honokohau National Historical Park, which was established in 1978, the ground-water flow system is composed of brackish water overlying saltwater. Ground-water levels measured in the Park range from about 1 to 2 feet above mean sea level, and fluctuate daily by about 0.5 to 1.5 feet in response to ocean tides. The brackish water is formed by mixing of seaward flowing...
Authors
Delwyn S. Oki, Gordon W. Tribble, William R. Souza, Edward L. Bolke
Geohydrology of the Central Oahu, Hawaii, ground-water flow system and numerical simulation of the effects of additional pumping Geohydrology of the Central Oahu, Hawaii, ground-water flow system and numerical simulation of the effects of additional pumping
A two-dimensional, finite-difference, ground-water flow model was developed for the central Oahu flow system, which is the largest and most productive ground-water flow system on the island. The model is based on the computer code SHARP which simulates both freshwater and saltwater flow. The ground-water model was developed using average pumping and recharge conditions during the 1950's...
Authors
Delwyn S. Oki
Geohydrology and Numerical Simulation of the Ground-Water Flow System of Molokai, Hawaii 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 discharge. The model uses the finite-element...
Authors
Delwyn S. Oki
Ground water atlas of the United States: Segment 13, Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands Ground water atlas of the United States: Segment 13, Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands
No abstract available.
Authors
James A. Miller, R.L. Whitehead, Delwyn S. Oki, Stephen B. Gingerich, Perry G. Olcott
Numerical Analysis of Ground-Water Flow and Salinity in the Ewa Area, Oahu, Hawaii 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 system consisting of interbedded marine and...
Authors
Delwyn S. Oki, William R. Souza, Edward I. Bolke, Glenn R. Bauer