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Articles

1975: Vol. LII, No. 2

Progress with Air Photography from Helicopters for Hydrographic Work

Submitted
August 7, 2015
Published
2015-07-07

Abstract

Helicopters have been found to have useful applications to hydrographic tasks, especially when they can be carried on board survey ships and are thus readily available. The tasks examined in detail in this paper are the measurement of tidal streams by aerial photographic methods, surveying of the inter-tidal zone and the measurement of depths in shallow water. The problems of mounting the camera in the helicopter are also considered.