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Articles

1979: Vol. LVI, No. 2

Cost Benefits of Photobathymetry

Submitted
August 7, 2015
Published
2015-07-10

Abstract

The National Ocean Survey has recently completed photographing approximately 60 square nautical miles of underwater area surrounding St. Croix Island, Virgin. Islands. Analysis of the field, data acquisition, and processing costs for this underwater mapping project show that photobathymetry is a cost-effective surveying technique. A comparison between photogrammetric underwater mapping and conventional launch hydrography gives a cost benefit ratio of 6:1 in favor of bathymetry.