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WRRCTR No.23 Electrical Resistivity Profile from Mahukona to Kawaihae, Hawaii
|Title:||WRRCTR No.23 Electrical Resistivity Profile from Mahukona to Kawaihae, Hawaii|
|Authors:||Adams, William M.|
|LC Subject Headings:||Groundwater -- Hawaii -- Hawaii Island.|
Prospecting -- Geophysical methods.
|Issue Date:||Nov 1968|
|Publisher:||Water Resources Research Center, University of Hawaii at Manoa|
|Citation:||Adams WM. 1968. Electrical resistivity profile from Mahukona to Kawaihae, Hawaii. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC technical report, 23.|
|Series/Report no.:||WRRC Technical Report|
|Abstract:||In order to locate the relatively optimum sites for drilling exploratory holes for fresh water, an electrical resistivity survey was conducted along the new Mahukona-Kawaihae Road on the west flank of the
Kohala Mountain. Two resistivity soundings were run using the Schlumberger spread configuration to determine a satisfactory spacing for a Wenner profile spread. Using an "a" spacing of 275 feet, a profile of
209 stations was run using the Wenner spread configuration. The data were correlated with elevation at 0.41, so a procedure for removing the elevation effect from observed apparent resistivity was developed. The
procedure is probably uniquely applicable to insular environments. Based on the reduced resistivity profile, four relatively optimum sites for additional exploration, such as by drilling, are specified. There is not, however, any interpretation of the data that can definitely indicate the occurrence anywhere on the profile of large underground reservoirs of freshwater. This is because the interpretation of profile data is
essentially relative, not absolute.
|Sponsor:||Division of Water and Land Development of the Department of Land and Natural Resources of the State of Hawaii; the Water Resources Research Center; the Hawaii Institute of Geophysics|
|Pages/Duration:||vi + 32 pages|
|Appears in Collections:||WRRC Technical Reports|
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