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Beach Erosion at Waimea Bay, Oahu, Hawaii

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Title: Beach Erosion at Waimea Bay, Oahu, Hawaii
Authors: Campbell, J.F.
Hwang, D.J.
Issue Date: Jan 1982
Publisher: University of Hawai’i Press
Citation: Campbell JF, Hwang DJ. 1982. Beach erosion at Waimea Bay, Oahu, Hawaii. Pac Sci 36(1): 35-43.
Abstract: Waimea Beach on the island of Oahu, Hawaii, is a popular
recreation area, which is presently endangered by severe erosion. The extent of
shoreline erosion has been determined from comparison of an 1884 survey
map with aerial photographs from the period 1928-1975, and from measurements
of the changes in the vegetation line during that time. The Waimea
section of Oahu's shoreline has receded about 200 ft in this 47-yr period. This
erosion is caused primarily by storms that move the beach sand into deeper
waters from which it cannot return to the beach and the lack of supply of new
sand to the beach. Sand mining and abrasion also have contributed to the
retreat of the shoreline.
Continued periodic measurements and aerial surveys would be valuable in
tracking the regression of the shoreline and useful for planning the future of
public facilities located in Waimea Bay.
ISSN: 0030-8870
Appears in Collections:Pacific Science Volume 36, Number 1, 1982

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