The Imaging of Gdansk Bay Seabed by Using Side Sonar

Grażyna Grelowska; Eugeniusz Kozaczka; Dominika Witos-Okrasińska; Wojciech Szymczak

doi:10.2478/pomr-2018-0031

The Imaging of Gdansk Bay Seabed by Using Side Sonar

Abstract

This paper is mainly aimed at presentation of an impact of environmental conditions on imaging accuracy by using hydro-acoustic systems in waters of a high non-uniformity of spatial distribution of hydrological parameters. Impact of refraction on erroneous estimation of range, in case of wave radiation into water under a large angle, like in side sonars or multi-beam echo-sounders, is especially important. In this paper seasonal changes in sound speed and its impact on acoustic beam refraction is discussed. And, examples which illustrate errors in determination of side sonar range occurred during last investigations carried out in Gdansk Bay waters are presented.

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Articles

Type:

artykuł w czasopiśmie wyróżnionym w JCR

Published in:

Polish Maritime Research no. 25, edition s1, pages 111 - 118,
ISSN: 1233-2585

Language:

English

Publication year:

2018

Bibliographic description:

Grelowska G., Kozaczka E., Witos-Okrasińska D., Szymczak W.: The Imaging of Gdansk Bay Seabed by Using Side Sonar// Polish Maritime Research. -Vol. 25, iss. s1 (2018), s.111-118

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