The Examination of the Upper Layers of the Seabed by the Means of the Acoustic Methods

• Authors: E. Kozaczka , G. Grelowska , W. Szymczak , S. Kozaczka
• Languages of publication: EN

Abstracts

EN

Propagation of acoustic waves in the sea, in particular in shallow sea, depends on several factors. The basic of them are source power and frequency of acoustic waves, spatial distribution inhomogeneous medium in which acoustic wave propagates, and distributions of speed of sound and density of seawater. The coastal conditions, which limit water medium from above (free surface of the sea) and from bottom (the seabed), are no less important. In this paper we will consider the examination of the layer structure of the seabed by the means of the acoustic methods. By the notion of acoustic methods we mean use of phenomena in the field of nonlinear hydroacoustics. Based on this, the parametric sonar was constructed and was used to the seabed sounding. This parametric sonar is commonly called sub-bottom profiler. The selected results of extensive experimental research, that have been performed in waters of the Gulf of Gdańsk in the years 2008-2010, will be presented in this work.

Keywords

EN

43.30.Ma; 43.30.Pc; 43.25.Jh

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 119
• Issue: 6A
• Pages: 1091-1094

Dates

published

2011-06

Contributors

author

E. Kozaczka

• Gdansk University of Technology, G. Narutowicza 11/12, 80-233 Gdansk, Poland
• Polish Naval Academy, Śmidowicza 69, 81-103 Gdynia, Poland
• University of Technology and Life Sciences in Bydgoszcz, ks. A. Kordeckiego 20, 85-225 Bydgoszcz, Poland

author

G. Grelowska

• Polish Naval Academy, Śmidowicza 69, 81-103 Gdynia, Poland

author

W. Szymczak

• Polish Naval Academy, Śmidowicza 69, 81-103 Gdynia, Poland

author

S. Kozaczka

• Polish Naval Academy, Śmidowicza 69, 81-103 Gdynia, Poland

References

• 1. G. Grelowska, E. Kozaczka, Nonlinear Properties of Sea Water, AMW, Gdynia 1996, p. 62
• 2. E. Kozaczka, G. Grelowska, S. Kozaczka, Acta Phys. Pol. A 118, 91 (2010)
• 3. Innomar Technologie GmbH, SES-2000 Narrow-beam parametric sub-bottom profilers, Innomar Technologie, Rostock 2008, p. 106
• 4. W. Szymczak, in: 1st EAA - EuroRegio 2010 Congress on Sound and Vibration with Summer School for Young Researchers, Ljubljana, 2010, CD-ROM - 068 [pdf]
• 5. G. Grelowska, E. Kozaczka, Acta Phys. Pol. A 118, 66 (2010)

Identifiers

DOI

10.12693/APhysPolA.119.1091