A5085025555- Methane Hydrates and Related Phenomena
- Marine and environmental studies
- Geological Studies and Exploration
- Atmospheric and Environmental Gas Dynamics
- Hydrocarbon exploration and reservoir analysis
- Geology and Paleoclimatology Research
- Aquatic and Environmental Studies
- Oil Spill Detection and Mitigation
- Oceanographic and Atmospheric Processes
- Heavy metals in environment
- Underwater Acoustics Research
- Soil and Environmental Studies
A.O. Kovalevsky Institute of Biology of the Southern Seas
2003-2020
Marine Hydrophysical Institute
2015-2020
Nikita Botanical Gardens
2020
Russian Academy of Sciences
2015-2019
National Academy of Sciences of Ukraine
2003-2013
There is growing concern about the transfer of methane originating from water bodies to atmosphere. Methane sediments can reach atmosphere directly via bubbles or indirectly vertical turbulent transport. This work quantifies gas bubble dissolution using a combination modeling and acoustic observations rising determine what fraction transported by will The model predicts evolving size, composition, rise distance suitable for almost all aquatic environments. was validated argon measurements...
Shallow gas occurs between 0 and 1000 m below the sea floor. It consists mainly of microbial-formed or thermogenic methane a combination both, sometimes with limited admixture higher hydrocarbons (propane, butane, etc.).
During the echo-survey at open part of bay Laspi, a path more than 25 km was passed.The area covered by acoustic observations was, approximately, 41,5•10 3 m 2 .In total, 5 anomalies were revealed, identifying presence gas bubble streams in depth range 14 -24 m.It is assumed they are originated from same deep source hydrocarbon gases which methane emits apex bay.
INTRODUCTION Extensive methane expulsions of free gas from cold vents are well known deep (>2000m) and shallow (tens metres) water depths (Figure 1). Supposedly, much more is transported into the column as than dissolved gas, which oxidized by anaerobic aerobic processes partly precipitated carbonate. Rising bubbles not affected these filter mechanisms. Visual hydroacoustic investigations ideal methods to investigate where released seafloor determine amount rising speed, overall bubble...
«Дыхание недр» в форме метановых струйных газовыделений из морского дна (метановые сипы, или пузырьковые эманации) — явление планетарного масштаба, на которое обратили внимание лишь конце XX столетия. Изучение этого явления как важного звена процессов взаимодействия литосферы, гидросферы, атмосферы и биосферы не потеряло своей актуальности до настоящего времени. В данной работе определены потоки метана известном районе интенсивных метанопроявлений биогенной природы, географически привязанных...