Acoustic imaging of selected areas of Gdansk Bay with the aid of parametric echosounder and side-scan sonar

• Autorzy: Grelowska G. , Kozaczka E. , Szymczak W.
• Języki publikacji: EN

Abstrakty

EN

The article presents and analyses the data recorded during sounding of the Gdansk Bay seabed with the aid of a parametric echosounder and a side-scan sonar. The accuracy of seabed structure examination, as a condition for obtaining valuable results, requires correct configuration of echolocation devices and proper calibration of peripheral devices, such as the survey unit geographical position sensor – GPS, the navigation unit, the MRU-Z sensor of pitch, roll and heave, and the sound velocity meter, which deliver the data to the bathymetric measurement system. Parametric seabed profilers deliver two types of data: the envelope, and the detailed echo signal without processing. The envelope is used for data visualisation in the form of online echograms, while the echo signal is stored for further analyses, to be performed using dedicated software or, after relevant conversion, in arbitrary programming environment1. The presented data analysis is illustrated by selected sample images recorded by the parametric echosounder and the side-scan sonar during Gdansk Bay sounding.

Słowa kluczowe

EN

echolocation; acoustic imaging; seabed structure examination

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2017
• Tom: nr 4
• Strony: 35--41
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Grelowska G.

• Gdansk University of Technology ul. G. Narutowicza 11/12 80-233 Gdansk Poland

autor

Kozaczka E.

• Gdansk University of Technology ul. G. Narutowicza 11/12 80-233 Gdansk Poland

autor

Szymczak W.

• Polish Naval Academy ul. Śmidowicza 69 81-127 Gdynia Poland

Bibliografia

• 1. E. Kozaczka, G. Grelowska, W. Szymczak, S. Kozaczka, Processing data on sea bottom structure obtained by means of the parametric sounding, Polish Maritime Research, Vol. 19, No 4, 3-10, 2012
• 2. Peter C. Wille: Sound Images of the Ocean in Research and Monitoring. 2005.
• 3. L. Hamilton, P. Mulhearn, R. Noecker: Comparison of RoxAnn and QTC-view acoustic bottom classification system performance for the Cairns area, Great Barrier Reef, Australia. Continental Shelf Research 19, 1577÷1597, 1999
• 4. Leighton T., Mantouka A., White P., Klusek Z., Towards field measurements of populations of methane gas bubbles in marine sediment: an inversion method required for interpreting two-frequency insonification data from sediment containing gas bubbles, Hydroacoustics, 11, 203–224, 2008.
• 5. G. Grelowska, E. Kozaczka, Underwater acoustic imaging of the sea, Archives of Acoustics, Vol. 39, 4, 439-452, 2014.
• 6. Kozaczka E., Grelowska G., Kozaczka S., Szymczak W., Detection of Objects Buried in the Sea Bottom with the Use of Parametric Echosounder, Archives on Acoustics, 38, 1, 99–104, 2013.
• 7. Wunderlich J., Müller S.: High-resolution sub-bottom profiling using parametric acoustics. International Ocean Systems, 7 (4),6÷11, 2003
• 8. P. Blondel, A. Caiti: Buried Waste in the Seabed Acoustic Imaging and Bio-Toxicity. University of Bath, UK, 2007
• 9. Tegowski J., Lobbies Z., Seabed characterization using spectral moments of the echo signal, Acta Acustica united with Acustica, 88, 5, 623-626, 2002.
• 10. Zacharias M. and Dybedal J., The parametric side-scan sonar instrument and synthetic aperture sonar processing, [in:] Buried waste in the seabed. Acoustic imaging and Bio-toxicity, P. Blondel and A. Caiti [Eds.], Springer 2007.
• 11. G. Grelowska, S. Kozaczka. W. Szymczak: Some methods of the sea bottom recognition. Hydroacoustics, Vol. 12, 69÷76, 2009
• 12. G. Grelowska, E. Kozaczka, S. Kozaczka, W. Szymczak, Gdansk Bay seabed sounding and classification of its results, Polish Maritime Research No 3 (79) Vol 20, s. 45-50, 2013
• 13. E. Kozaczka, G. Grelowska, S. Kozaczka: Images of the seabed of the Gulf of Gdansk obtained by means of the parametric sonar. Acta Physics Polonica A, Vol. 118, No 1, 91÷94, 2010
• 14. Uścinowicz S., Zachowicz J. (1994), Geological map of the bottom of the Baltic Sea, 8 sheets and pamphlet, scale 1:200 000, Polish Geological Institute, Warsaw.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)