Sea relation between a sea depth detected by acoustical methods and a nautical depth

• Authors: L. Gajewski , Morgas W. Morgas , W. Morgas , Relisko J. Relisko , J. Relisko , Tegowski J. Tegowski , J. Tegowski
• Languages of publication: EN

Abstracts

EN

On twelve testing fields located in the main water basins of the Gda?sk and Szczecin harbours, the efficiency of a new depth technique was verified. The technique that determines a safe nautical depth is defined by a density criterion of a mud-water medium. The measuring results of the medium density varied greatly depending on a physical phenomenon applied in the measuring equipment. The differences found are mainly attributed to a different gas content in the surface mud sediments as well as to reological properties of the sediments. The results of the numerical simulation of acoustic waves propagation in the mud sediments clarify a depth overestimating by the echo sounder of a low frequency.

Keywords

EN

ACOUSTIC SOUNDING; AUTICAL DEPTH; NUCLEAR DENSITY

Discipline

• AQUATIC_SCIENCES: AQUATIC SCIENCES

• Publisher: Institute of Oceanography, University of Gdansk
• Journal: Oceanological Studies
• Year: 2000
• Volume: 29
• Issue: 3
• Pages: 67-84

Contributors

author

L. Gajewski

author

Morgas W. Morgas

author

W. Morgas

author

Relisko J. Relisko

author

J. Relisko

author

Tegowski J. Tegowski

author

J. Tegowski

• Document Type: ARTICLE
• Publication order reference: L. Gajewski, Maritime Institute, ul. Dlugi Targ 41-42, 80-830 Gdansk, Poland, e-mail: [e-mail]