Numerical Simulation of Flow in Deep Open Boreholes in a Coastal Freshwater Lens, Pearl Harbor Aquifer, Oahu, Hawai'i - Couverture souple

U.S. Department Of The Interior

 
9781499642124: Numerical Simulation of Flow in Deep Open Boreholes in a Coastal Freshwater Lens, Pearl Harbor Aquifer, Oahu, Hawai'i
Couverture souple
ISBN 10 : 1499642121 ISBN 13 : 9781499642124
Editeur : CreateSpace Independent Publishing Platform, 2014

Synopsis

The Pearl Harbor aquifer in southern Oÿahu is one of the most important sources of freshwater in Hawaiÿi. A thick freshwater lens overlays brackish and saltwater in this coastal aquifer. Salinity profiles collected from uncased deep monitor wells (DMWs) commonly are used to monitor freshwater-lens thickness. However, vertical flow in DMWs can cause the measured salinity to differ from salinity in the adjacent aquifer or in an aquifer without a DWM. Substantial borehole flow and displacement of salinity in DMWs over several hundred feet have been observed in the Pearl Harbor aquifer. The objective of this study was to evaluate the effects of borehole flow on measured salinity profiles from DMWs. A numerical modeling approach incorporated aquifer hydraulic characteristics and recharge and withdrawal rates representative of the Pearl Harbor aquifer. Borehole flow caused by vertical hydraulic gradients associated with both the natural regional flow system and groundwater withdrawals was simulated.

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Éditeur
CreateSpace Independent Publishing Platform
Date d'édition
2014
Langue
anglais
ISBN 10 
1499642121
ISBN 13 
9781499642124
Reliure
Broché
Nombre de pages
48
Coordonnées du fabricant
non disponible
Personne responsable
non disponible