Research Article
Nov 1974
Hydrographic Surveys Offshore—Error SourceS
Publication: Journal of the Surveying and Mapping Division
Volume 100, Issue 2
Abstract
Waves at sea limit both the resolution and accuracy of bathymetric surveys. Vessel roll introduces errors difficult to correct. By limiting operations to calm days according to criteria given, these errors can be controlled. Heave and roll appear as wiggles on the record, masking bottom irregularities. Speed limitations are given to assure seeing irregularities of a given size. Three tidal datum plan are defined, and indirect methods of obtaining offshore tidal data are described.
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Information
Published In
Journal of the Surveying and Mapping Division
Volume 100 • Issue 2 • November 1974
Pages: 83 - 93
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Nov 1974
Published online: Feb 12, 2021
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Authors
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Ralph H. Cross, M.ASCE
Dir. of Environmental Programs, Alpine Geophysical Assoc., Norwood, N.J.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.