Numerical modelling of vertically extensive groundwater bodies in Maui, Hawaii: An alternative to perched aquifers
IAHS-AISH Publication
By: S. B. Gingerich
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Abstract
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 that horizontal hydraulic conductivity values between about 0.08 and 1.0 m per day and anisotropy ratios between 1:1 and 100:1 will produce simulated water tables that match observed water tables at 400-1400 m elevation. These values of hydraulic conductivity are consistent with available field data for hydraulic conductivity.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 that horizontal hydraulic conductivity values between about 0.08 and 1.0 m per day and anisotropy ratios between 1:1 and 100:1 will produce simulated water tables that match observed water tables at 400-1400 m elevation. These values of hydraulic conductivity are consistent with available field data for hydraulic conductivity.
Suggested Citation
Gingerich, S.B., 1998, Numerical modelling of vertically extensive groundwater bodies in Maui, Hawaii: An alternative to perched aquifers: IAHS-AISH Publication, no. 253, p. 167-174.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Numerical modelling of vertically extensive groundwater bodies in Maui, Hawaii: An alternative to perched aquifers |
| Series title | IAHS-AISH Publication |
| Issue | 253 |
| Year Published | 1998 |
| Language | English |
| Publisher | IAHS |
| Publisher location | Wallingford, United Kingdom |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | IAHS-AISH Publication |
| First page | 167 |
| Last page | 174 |