Processing data on sea bottom structure obtained by means of the parametric sounding

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

Abstrakty

EN

The aim of the paper is to analyze data obtained during sounding the Gdansk Bay sea bed by means of the parametric echo-sounder. The accuracy of the sea bottom structure investigation needs correct configuration of research equipment and proper calibration of peripheral devices (GPS, heading sensor, MRU-Z motion sensor and navigation instruments which provide necessary data to bathymetrical measurement system, enabling its work with full capability. The parametric sub-bottom profiler delivers two types of data which include different information: envelope and pure echo signal sampled without processing. The first is used to present echograms in real time and the second one is stored during sounding and the obtained data can be analyzed by using post-processing software. Differences in the results are presented and discussed. And, are described also criteria taken into account during determination of the measurement areas and selection of different configurations of the software according to the information to be obtained from trials. Complementary information can be achieved from processing the data by means of the procedures offered by Matlab software, which allows for a clear 3D presentation of the results. The consideration are illustrated by echograms taken in the natural conditions.

Słowa kluczowe

EN

sea bottom acoustic; sub-bottom profiler; sea bed structure

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2012
• Tom: nr 4
• Strony: 3--10
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Kozaczka E.

autor

Grelowska G.

autor

Kozaczka S.

autor

Szymczak W.

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

Bibliografia

• 1. G. Grelowska, E. Kozaczka: Nonlinear properties of water (in Polish), AMW, Gdynia, 1996
• 2. K. Naugolnykh, L. Ostrovsky: Nonlinear Wave Processes in Acoustics, Cambridge University, Cambridge, 1998
• 3. P. Blondel, A. Caiti: Buried Waste in the Seabed Acoustic Imaging and Bio-Toxicity, University of Bath, UK, 2007
• 4. Innomar Technologie GmbH: SES-2000 Narrow-beam parametric sub-bottom profilers, Innomar Technologie, Rostock, 2008
• 5. E. Kozaczka, G. Grelowska, S. Kozaczka: Images of the seabed of the Gulf of Gdansk obtain by means of the parametric sonar, Acta Physica Polonica A, Vol. 118, No 1, 91-94, 2010.
• 6. G. Grelowska, E. Kozaczka: Sounding of layered marine bottom - modelling investigations, Acta Physica Polonica A, Vol. 118, No 1, 66-70, 2010.
• 7. G. Grelowska, E. Kozaczka, S. Kozaczka, W. Szymczak: Sea bottom structure investigation by means of acoustic methods, Polish Journal of Environmental Studies, Vol. 19, No 4A, 35-38, 2010.
• 8. G. Grelowska, E. Kozaczka, S. Kozaczka, W. Szymczak: Post processing and selecting data obtain with parametric subbottom profiler SES-2000 Standard during sounding the Gulf of Gdansk, 11th European Conference on Underwater Acoustics 2012 - ECUA 2012, Volume 34 Pt. 3, p. 1446-1453, Edinburgh United Kingdom, 2-6 July 2012.
• 9. Results from shallow gas area outside Namibia: http://www.km.kongsberg.com/ks/web/nokbg0240.nsf/AllWeb/ 56E492C388344357C1256F800045E141?OpenDocumen