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Water Budget for the Island of Molokai, Hawaii

Water-Resources Investigations Report 97-4155

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Abstract

Ground-water recharge is estimated from a monthly water budget calculated using long-term average rainfall and streamflow data, synthesized pan-evaporation data, and soil characteristics. The water-budget components are defined seasonally, through the use of monthly data, and spatially by geohydrologic areas, through the use of a geographic information system model.<\p> The long-term average ground-water recharge for Molokai was estimated for natural land-use conditions. The island-wide mean recharge rate for natural conditions is 189 million gallons per day, which is 34 percent of rainfall. The island-wide rainfall, direct runoff, and actual evapotranspiration are 552, 89, and 274 millions gallons per day, respectively.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Water Budget for the Island of Molokai, Hawaii
Series title:
Water-Resources Investigations Report
Series number:
97-4155
Edition:
-
Year Published:
1997
Language:
ENGLISH
Publisher:
Geological Survey (U.S.)
Contributing office(s):
Pacific Islands Water Science Center
Description:
iv, 20 p.