Results 11 to 20 of about 2,337,719 (289)

Damage and repair of subsea pipeline in shallow gas area

open access: yesYou-qi chuyun, 2020
A 10-in (1 in = 2.54 cm) subsea oil pipeline and a 14-in gas pipeline of an oilfield crosses a shallow gassubsidence area at about 53 km (KP53) away from the landing point of Hangzhou Gulf. These two pipelines have beenin service for nearly 20 years, but
Xiufeng LI, Ying ZHANG, Biao FENG
doaj   +2 more sources

Shear instabilities in shallow-water magnetohydrodynamics [PDF]

open access: yes, 2013
The interaction of horizontal shear flows and magnetic fields in stably stratified layers is central to many problems in astrophysical fluid dynamics.
Mak, Julian
core   +6 more sources

Controls on shallow gas distribution, migration, and associated geohazards in the Yangtze subaqueous delta and the Hangzhou Bay

open access: yesFrontiers in Marine Science, 2023
Shallow gas is generally extensively distributed in the Holocene muddy sediments and gas seepage has been increasingly reported to induce geohazards in coastal seas, but controls on gas distribution and migration remain elusive.
Lei Song   +6 more
doaj   +1 more source

New Seismoacoustic Data on Shallow Gas in Holocene Marine Shelf Sediments, Offshore from the Cilento Promontory (Southern Tyrrhenian Sea, Italy)

open access: yesJournal of Marine Science and Engineering, 2022
High-resolution seismoacoustic data represent a useful tool for the investigations of gas-charged sediments occurring beneath the seabed through the identification of the diagnostic intrasedimentary features associated with them.
Gemma Aiello, Mauro Caccavale
doaj   +1 more source

Faults and gas chimneys jointly dominate the gas hydrate accumulation in the Shenhu Area, northern South China Sea

open access: yesFrontiers in Marine Science, 2023
Gas hydrates possess significant potential as an energy resource and exert a notable influence on global climate change. The Shenhu Area is one of the globally recognized focal points for gas hydrate research, and additional investigation is required to ...
Jinfeng Ren   +9 more
doaj   +1 more source

Seabed fluid flow in the China Seas

open access: yesFrontiers in Marine Science, 2023
Seabed fluid flow is a widespread and important natural phenomenon in marine environments, which involves complex multi-physics, multi-process and multi-scale processes.
Chaoqi Zhu   +12 more
doaj   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming. [PDF]

open access: yesAdv Sci (Weinh)
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Du J   +15 more
europepmc   +2 more sources

Air-sea gas exchange in shallow water environments

open access: yes, 2023
Veron, FabriceThe exchange of gases across the air-sea interface influences the cycling of climatically important trace gases such as carbon dioxide (CO2).
Sommers, Morgan
core   +1 more source

Forward modelling and identification of shallow gas in the Bohai Bay seabed

open access: yesGeoenvironmental Disasters, 2022
The accumulation of shallow gas in the seabed reduces the strength of strata or forms a high-pressure air sac, endangering ocean engineering construction.
Xiao-Di Yang   +3 more
doaj   +1 more source

Complex Eyed Pockmarks and Submarine Groundwater Discharge Revealed by Acoustic Data and Sediment Cores in Eckernförde Bay, SW Baltic Sea

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Submarine groundwater discharge into coastal areas is a common global phenomenon and is rapidly gaining scientific interest due to its influence on marine ecology, the coastal sedimentary environment, and its potential as a future freshwater resource. We
J. J. L. Hoffmann   +7 more
doaj   +1 more source

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