Acoustic Monitoring of Gas Emission Processes in the Arctic Shelf Seas

Ananiev, R. A.; Dmitrevsky, N. N.; Roslyakov, A. G.; Chernykh, Denis; Мороз, Е. А.; Zarayskaya, Yulia; Semiletov, I. P.

doi:10.1134/s0001437022010015

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…In order to investigate the geological roots of gas flares in the upper part of the soil profile at sub-bottom depths up to several hundred meters the CSP data is to use. Vertical zones of correlation disturbance in the upper part of the soil profile are due to the high gas content in the bottom sediments while the sharp increase in the amplitudes of reflections can be interpreted as gas-saturated layers [10]. The sampling and analysis of the gas content of cores at the locations of gas anomalies confirmed the interpretation of such sections as gas-saturated zones.…”

Section: Discussionmentioning

confidence: 52%

“…An important advantage of single-beam echo sounding systems is the possibility of using the data obtained to quantify the gas flow in the areas of its bubble discharge. Conventional remote flow measurement techniques are based on estimating the volume of bubble gas from the sound backscatter level using additional data from other methods [10,44,46].…”

Section: Discussionmentioning

confidence: 99%

“…Another important option of the WASSP WMB-3250 is the possibility of real-time 3D data visualization (Figure 9a). Recently, a method using calibration measurements of the dependence of the vertical volumetric flow on the acoustic backscattering cross-section of backscattering of popping bubbles has been used, which makes it possible to perform a quantitative assessment using the acoustic data of multibeam echo sounders [10,43].…”

Section: Discussionmentioning

confidence: 99%

“…Gas streams released from the sea bottom generally weaken the structure and natural stability of bottom sediments and serve as a potential source of natural risks during the construction and operation of underwater structures, such as pipelines, oil platforms, etc. [10].…”

Section: Introductionmentioning

confidence: 99%

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A Complex of Marine Geophysical Methods for Studying Gas Emission Process on the Arctic Shelf

Крылов

Ananiev

Chernykh

et al. 2023

Sensors

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The Russian sector of the arctic shelf is the longest in the world. Quite a lot of places of massive discharge of bubble methane from the seabed into the water column and further into the atmosphere were found there. This natural phenomenon requires an extensive complex of geological, biological, geophysical, and chemical studies. This article is devoted to aspects of the use of a complex of marine geophysical equipment applied in the Russian sector of the arctic shelf for the detection and study of areas of the water and sedimentary strata with increased saturation with natural gases, as well as a description of some of the results obtained. This complex contains a single-beam scientific high-frequency echo sounder and multibeam system, a sub-bottom profiler, ocean-bottom seismographs, and equipment for continuous seismoacoustic profiling and electrical exploration. The experience of using the above equipment and the examples of the results obtained in the Laptev Sea have shown that these marine geophysical methods are effective and of particular importance for solving most problems related to the detection, mapping, quantification, and monitoring of underwater gas release from the bottom sediments of the shelf zone of the arctic seas, as well as the study of upper and deeper geological roots of gas emission and their relationship with tectonic processes. Geophysical surveys have a significant performance advantage compared to any contact methods. The large-scale application of a wide range of marine geophysical methods is essential for a comprehensive study of the geohazards of vast shelf zones, which have significant potential for economic use.

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Section: Discussionmentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Complex of Marine Geophysical Methods for Studying Gas Emission Process on the Arctic Shelf

Крылов

Ananiev

Chernykh

et al. 2023

Sensors

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“…Вопросам донного газопроявления в Мировом океане и в том числе в арктических морях посвящена обширная литература, включая ряд отечественных публикаций, например, [41]-[43], которые в основном касались моря Лаптевых. Вопросы поиска районов донного газопроявления с использованием гидроакустических средств (МЛЭ) и ЭГИС в Карском море обсуждались в работах [44]- [47]. Современные МЛЭ позволяют осуществлять обнаружение донного газопроявления одновременно с выполнением площадной съемки рельефа.…”

Section: обсуждение (Discussion)unclassified

The tasks for bathymetric investigations and cartographic support of the northern sea high latitude routes in the East Siberian Sea

Firsov,

Pozenkova

2023

jour

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The current state and issues of bathymetric investigations of the East Siberian Sea are examined in this study. The main sources of bathymetric data are characterized. The possibilities to solve these issues in order to improve the efficiency of the oncoming bathymetric investigation in the East Siberian Sea for supporting the urgent practical tasks of the Russian Federation concerning the Northern Sea high latitude routes are discussed. The importance of a new hydrographic investigation through the high latitude routes in the East Siberian Sea in order to provide the possibility of year-round navigation of the large-tonnage Arc7‑class icebreaking LNG carriers is especially emphasized. Compiling of the new coastal electronic navigation charts for the new Northern Sea high latitude routes is stated as one of the main priorities. The lack of coastal electronic navigation charts of the high latitude routes in the East Siberian Sea will present a challenge for the establishing of year-round navigation for high ice-capable Arc7‑class LNG carriers during the coming several years. The drafting of high latitude routes must also consider the seafloor gas venting in the East Siberian Sea. The satellite remote sensing data from passive microwave radiometers and optical sensors using «modis & amsr2» technology provided by the University of Bremen ensures the complementary observations of sea ice concentration in the eastern part of the East Siberian Sea. The re-analysis of data from microwave radiometers AMSR‑2 beginning from 2018 provides the conclusion about the autumn degradation of the Aion ice massif. The analysis of the sea-ice concentration of the Aion ice massif during autumn–winter of 2022, the most severe in the last 5 years, allows us to give a recommendation concerning the new high latitude route in the East Siberian Sea. This route passes along the northern coast of Vrangel island into the Chukchi Sea and it is more efficient for large-tonnage Arc7‑class icebreaking LNG carriers ensuring year-round navigation in the East Siberian Sea. It is stated that hydrographic investigations carried out on the sections of the Northern Sea Route must adhere to the requirements of the International Hydrographic Organization. The urgency of developing the state integrated bathymetric database for the Arctic Ocean including the Arctic Seas data along with the necessity of providing all Russian bathymetric data acquired in the Arctic region to the assigned national centre is discussed. The FKU 280 ZKP VMF is proposed as such national centre. The importance of coastal electronic navigation charts for the high latitude routes in the East Siberian Sea created on the basis of modern technology is emphasized.

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Underwater bubble escape volume measurement based on passive acoustic under noise factors: Simulation and experimental research

Rui

Zhou

et al. 2023

Measurement

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Acoustic Monitoring of Gas Emission Processes in the Arctic Shelf Seas

Cited by 6 publications

References 12 publications

A Complex of Marine Geophysical Methods for Studying Gas Emission Process on the Arctic Shelf

A Complex of Marine Geophysical Methods for Studying Gas Emission Process on the Arctic Shelf

The tasks for bathymetric investigations and cartographic support of the northern sea high latitude routes in the East Siberian Sea

Underwater bubble escape volume measurement based on passive acoustic under noise factors: Simulation and experimental research

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