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

• Autorzy: Gajewski L. , Morgaś W. , Relisko J. , Tęgowski J.
• Konferencja: "Oceanografhy from Theory to Practice". Conference held in Gdynia, Poland, on 14-16 June 2000 in celebration of the 70 th birthday of Professor Krzysztof Korzeniowski. Part 2
• Języki publikacji: EN

Abstrakty

EN

On twelve testing fields located in the main water basins of the Gdańsk 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.

Słowa kluczowe

EN

aucoustic sounding; autical depth; nuclear density probes

• Wydawca: Institute of Oceanography University of Gdańsk
• Czasopismo: Oceanological Studies
• Rocznik: 2000
• Tom: Vol. 29, No. 3
• Strony: 67--84
• Opis fizyczny: Bibliogr. 13 poz., tab., wykr.

Twórcy

autor

Gajewski L.

• Maritime Institute, ul. Długi Targ 41-42, 80-830 Gdańsk, Poland

autor

Morgaś W.

• Maritime Institute, ul. Długi Targ 41-42, 80-830 Gdańsk, Poland

autor

Relisko J.

• Maritime Institute, ul. Długi Targ 41-42, 80-830 Gdańsk, Poland

autor

Tęgowski J.

• Institute of Oceanology, Polish Academy of Sciences, ul. Powstańców Warszawy 55, 81-972 Sopot, Poland

Bibliografia

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