Acoustic investigations of shallow gas in the southern Baltic Sea (Polish Exclusive Economic Zone): a review

Damian Jaśniewicz , Zygmunt Klusek , Aleksandra Brodecka-Goluch , Jerzy Bolałek


This paper synthesizes, compares, and discusses acoustic data pertaining to the presence of gas in sediments within the Polish Exclusive Economic Zone in the southern Baltic Sea, which are scattered among different journals, some of which are difficult to access and therefore have limited availability to a wider group of readers. It includes data collected between the 1970s and the present day, collected using different acoustic measurement devices. A majority of reported acoustic manifestations of gas presence in sediments in the Polish EEZ take the form of acoustic blanking followed by layer enhancement, acoustic turbidity, and increased acoustic energy absorption. The observed morphological structures related to gas presence are pockmarks (shallow and buried—17 km2), gas-saturated sediments, gas pockets, and gas chimneys. The estimated total area of acoustic manifestation of shallow gas in the Polish EEZ is around 700 km2. Geochemical analyses of surface sediments demonstrated strong correlation with acoustic data and revealed that methane occurs at relatively shallow depths compared with other regions of the Baltic Sea.
Author Damian Jaśniewicz
Damian Jaśniewicz,,
, Zygmunt Klusek
Zygmunt Klusek,,
, Aleksandra Brodecka-Goluch (FOG / IO / DMChEP)
Aleksandra Brodecka-Goluch,,
- Division of Marine Chemistry and Environmental Protection
, Jerzy Bolałek (FOG / IO / DMChEP)
Jerzy Bolałek,,
- Division of Marine Chemistry and Environmental Protection
Journal seriesGeo-Marine Letters, ISSN 0276-0460, (N/A 70 pkt)
Issue year2019
Publication size in sheets0.8
ASJC Classification1901 Earth and Planetary Sciences (miscellaneous); 1909 Geotechnical Engineering and Engineering Geology; 1910 Oceanography; 2301 Environmental Science (miscellaneous)
Languageen angielski
LicenseOther; published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)70
Score sourcejournalList
ScoreMinisterial score = 70.0, 17-11-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.998; WoS Impact Factor: 2018 = 1.94 (2) - 2018=1.934 (5)
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