water stream over rocks

Introduction

Estimating Hydraulic Properties for Volcanic Island Aquifers Using Wave Setup

Estimating Hydraulic Properties for Volcanic Island Aquifers Using Wave Setup

SPONSOR:
National Institute for Water Resources, Water Resources Research Institute Program

PROJECT PERIOD:
03/01/07 - 02/28/08

ABSTRACT:
The objective of this study was to investigate the influence of swells and wave setup on low-frequency water-table variations in a coastal aquifer and to utilize wave setup in hydraulic parameter estimation. The research has contributed to advances in hydrogeological science by addressing an area that is insufficiently investigated. The approach was beneficial to many high-permeability coastal environments, such as volcanic islands and atolls. The technique also provided a practical approach for aquifer parameter estimation as an important step towards managing Hawaii's valuable ground-water resources. Different techniques of signal processing were applied to available data to filter out other environmental impacts, such as barometric and tidal influences, to limit the water-table fluctuations to wave setup.

Correlation between wave setup data and observed inland head changes were investigated. Analytical solutions for tides were adapted to wave set-up a

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Click here to view the related publications: CP-2008-04, CP-2008-02, CP-2007-03