Toward monitoring and estimating the size of the HFO-contaminated seabed around a shipwreck using MBES backscatter data

MARINE POLLUTION BULLETIN

卷:171

Article

Szafranska, Marta¹  Gil, Mateusz^2,3  Nowak, Jaroslaw¹ 

[1] MEWO SA, Starogardzka 16, PL-83010 Straszyn, Poland

[2] Gdynia Maritime Univ, Res Grp Maritime Transportat Risk & Safety, Morska 81-87, PL-81225 Gdynia, Poland

[3] Aalto Univ, Dept Mech Engn, Marine Technol Grp, POB 15300, FI-00076 Aalto, Finland

关键词: Backscatter;    Heavy fuel oil (HFO);    Multibeam echosounder (MBES);    Shipwreck;    Submerged oil;    Marine pollution monitoring;   

DOI  :  10.1016/j.marpolbul.2021.112747

来源: Elsevier

【 摘 要 】

Despite a progressive reduction of oil spills caused by the activity of maritime transportation, the latent sources of pollution still exist. Although the harmful impact of heavy fuel oil (HFO) on the marine environment is widely known, many shipwrecks cause contamination of the surrounding areas. In this paper, an approach to monitor the area of the HFO spill around a shipwreck is made using a bottom backscattering strength (BBS) obtained by a multibeam echosounder (MBES). As a case study, the s/s Stuttgart wreck located in the Gulf of Gdansk (Poland) is verified. Two different measurement campaigns have been carried out in shallow waters using low (190 kHz) and high (420 kHz) MBES frequency. The results indicate that the polluted area around s/s Stuttgart was estimated at 49.1 ha, which is around 18.3% more in comparison to the geological surveys made four years earlier.

【 授权许可】

Free