Stephen B Gingerich
Stephen Gingerich is a research hydrologist at the USGS Oregon Water Science Center.
Stephen Gingerich has been a Research Hydrologist for the U.S. Geological Survey since 1995. He has authored over 35 scientific papers on subjects such as groundwater modeling and island hydrology. He was a Fulbright Scholar working in Japan during 2008-09. He started working for the USGS in 1990 as a student. He has worked on hydrologic studies in Oregon, Hawaii, Guam, Japan, the Marshall Islands, American Samoa, the Northern Mariana Islands, and Diego Garcia.
Education and Certifications
BS in Geosciences from the Pennsylvania State University, 1986
MS in Hydrology from the University of Hawaii at Manoa, 1992
PhD in Hydrology from the University of Hawaii at Manoa, 1995
Science and Products
Filter Total Items: 58
Numerical modelling of vertically extensive groundwater bodies in Maui, Hawaii: An alternative to perched aquifers
Groundwater in East Maui, Hawaii is traditionally described as a series of discrete aquifers perched on low-permeability units underlain by a basal lens with heads of about 2-3 m. An alternative concept, a fully saturated aquifer to as much as 1400 m elevation, was investigated using a numerical model with various horizontal hydraulic conductivity values and anisotropy ratios. Results indicate tha
Authors
S. B. Gingerich
Estimation of the depth to the fresh-water/salt-water interface from vertical head gradients in wells in coastal and island aquifers
An accurate estimate of the depth to the theoretical interface between fresh, water and salt water is critical to estimates of well yields in coastal and island aquifers. The Ghyben–Herzberg relation, which is commonly used to estimate interface depth, can greatly underestimate or overestimate the fresh-water thickness, because it assumes no vertical head gradients and no vertical flow. Estimatio
Authors
S. K. Izuka, S. B. Gingerich
Construction, geologic log, and aquifer tests of the northwest Kilohana Monitor well (State well 2-0126-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. B. Gingerich, S. K. Izuka
Construction, geologic log, and aquifer tests of the Puakukui Springs monitor well (State well 2-5626-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. B. Gingerich, S. K. Izuka
Construction and geologic log of the South Wailua monitor well (State well 2-0121-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. K. Izuka, S. B. Gingerich
Construction, geologic log, and aquifer tests of the northeast Kilohana monitor well (State well 2-0124-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. K. Izuka, S. B. Gingerich
Construction, geologic log, and aquifer tests of the Hanamaulu monitor well (State well 2-5923-08), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. K. Izuka, S. B. Gingerich
Construction, geologic log, and aquifer tests of the Pukaki Reservoir monitor well (State well 2-0023-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. K. Izuka, S. B. Gingerich
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
Ground-water resources and contamination at Roi-Namur Island, Kwajalein Atoll, Republic of the Marshall Islands, 1990-91
A study was conducted on Roi-Namur Island, Kwajalein Atoll to define the extent of the freshwater lenses and recharge zones and to asses potential contaminant migration from known sources of contamination. Rainfall, which is the sole natural source of freshwater, is strongly seasonal and occasional multi-year droughts are capable of disrupting the island's water supply. The supply of freshwater is
Authors
Stephen B. Gingerich
Science and Products
Filter Total Items: 58
Numerical modelling of vertically extensive groundwater bodies in Maui, Hawaii: An alternative to perched aquifers
Groundwater in East Maui, Hawaii is traditionally described as a series of discrete aquifers perched on low-permeability units underlain by a basal lens with heads of about 2-3 m. An alternative concept, a fully saturated aquifer to as much as 1400 m elevation, was investigated using a numerical model with various horizontal hydraulic conductivity values and anisotropy ratios. Results indicate tha
Authors
S. B. Gingerich
Estimation of the depth to the fresh-water/salt-water interface from vertical head gradients in wells in coastal and island aquifers
An accurate estimate of the depth to the theoretical interface between fresh, water and salt water is critical to estimates of well yields in coastal and island aquifers. The Ghyben–Herzberg relation, which is commonly used to estimate interface depth, can greatly underestimate or overestimate the fresh-water thickness, because it assumes no vertical head gradients and no vertical flow. Estimatio
Authors
S. K. Izuka, S. B. Gingerich
Construction, geologic log, and aquifer tests of the northwest Kilohana Monitor well (State well 2-0126-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. B. Gingerich, S. K. Izuka
Construction, geologic log, and aquifer tests of the Puakukui Springs monitor well (State well 2-5626-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. B. Gingerich, S. K. Izuka
Construction and geologic log of the South Wailua monitor well (State well 2-0121-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. K. Izuka, S. B. Gingerich
Construction, geologic log, and aquifer tests of the northeast Kilohana monitor well (State well 2-0124-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. K. Izuka, S. B. Gingerich
Construction, geologic log, and aquifer tests of the Hanamaulu monitor well (State well 2-5923-08), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. K. Izuka, S. B. Gingerich
Construction, geologic log, and aquifer tests of the Pukaki Reservoir monitor well (State well 2-0023-01), Lihue, Kauai, Hawaii
No abstract available.
Authors
S. K. Izuka, S. B. Gingerich
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
Ground-water resources and contamination at Roi-Namur Island, Kwajalein Atoll, Republic of the Marshall Islands, 1990-91
A study was conducted on Roi-Namur Island, Kwajalein Atoll to define the extent of the freshwater lenses and recharge zones and to asses potential contaminant migration from known sources of contamination. Rainfall, which is the sole natural source of freshwater, is strongly seasonal and occasional multi-year droughts are capable of disrupting the island's water supply. The supply of freshwater is
Authors
Stephen B. Gingerich