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View article: ODP Leg 114, Hole 703A - Well Logging Data
ODP Leg 114, Hole 703A - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 108, Hole 661A - Well Logging Data
ODP Leg 108, Hole 661A - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 108, Hole 661A - Well Logging Data
ODP Leg 108, Hole 661A - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 114, Hole 700B - Well Logging Data
ODP Leg 114, Hole 700B - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 114, Hole 703A - Well Logging Data
ODP Leg 114, Hole 703A - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 114, Hole 704B - Well Logging Data
ODP Leg 114, Hole 704B - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 114, Hole 704B - Well Logging Data
ODP Leg 114, Hole 704B - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 114, Hole 700B - Well Logging Data
ODP Leg 114, Hole 700B - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: Methane hydrate mobilization by ice stream erosion during the last glacial
Methane hydrate mobilization by ice stream erosion during the last glacial Open
<p>During the past ~2.6 Ma, some 30 glaciations have caused episodic high pressure and low temperature conditions and forced growth and decay of extensive subglacial methane hydrate accumulations globally. Research on Arctic methane …
View article: High-resolution underwater laser spectrometer sensing provides new insights into methane distribution at an Arctic seepage site
High-resolution underwater laser spectrometer sensing provides new insights into methane distribution at an Arctic seepage site Open
Methane (CH4) in marine sediments has the potential to contribute to changes in the ocean and climate system. Physical and biochemical processes that are difficult to quantify with current standard methods such as acoustic surveys and disc…
View article: Replication Data for: High-resolution underwater laser spectrometer sensing provides new insights into methane distribution at an Arctic seepage site
Replication Data for: High-resolution underwater laser spectrometer sensing provides new insights into methane distribution at an Arctic seepage site Open
Methane (CH4) in marine sediments has the potential to contribute to changes in the ocean- and climate system. Physical and biochemical processes that are difficult to quantify with current standard methods such as acoustic surveys and dis…
View article: High-resolution under-water laser spectrometer sensing provides new insights to methane distribution at an Arctic seepage site
High-resolution under-water laser spectrometer sensing provides new insights to methane distribution at an Arctic seepage site Open
Methane (CH4) in marine sediments has the potential to contribute to changes in the ocean- and climate system. Physical and biochemical processes that are difficult to quantify with current standard methods such as acoustic surveys and dis…
View article: Corrigendum: A new methodology for quantifying bubble flow rates in deep water using splitbeam echosounders: Examples from the Arctic offshore NW‐Svalbard
Corrigendum: A new methodology for quantifying bubble flow rates in deep water using splitbeam echosounders: Examples from the Arctic offshore NW‐Svalbard Open
In our original paper, M. Veloso, J. Greinert, J. Mienert, M. De Batist, 2015, A new methodology for quantifying bubble flow rates in deep water using splitbeam echosounders: Examples from the Arctic offshore NW-Svalbard, Limnol. Oceanogr.…
View article: Methane at Svalbard and over the European Arctic Ocean
Methane at Svalbard and over the European Arctic Ocean Open
Methane (CH4) is a powerful greenhouse gas. Its atmospheric mixing ratios have been increasing since 2005. Therefore, quantification of CH4 sources is essential for effective climate change mitigation. Here we report observations of the CH…
View article: Supplementary material to "Methane at Svalbard and over the European Arctic Ocean"
Supplementary material to "Methane at Svalbard and over the European Arctic Ocean" Open
Figure S1: Methane mixing ratios at the RV Helmer Hanssen vs apparent wind angle relative to the bow (β), using β=arcos(W cos α + V/ √(W2+V2+2WV cos α)) where α=true pointing angle, W=true wind velocity, and V=ship velocity.
View article: Methane at Svalbard and over the European Arctic Ocean
Methane at Svalbard and over the European Arctic Ocean Open
Methane (CH4) is a powerful greenhouse gas and atmospheric mixing ratios have been increasing since 2005. Therefore, quantification of CH4 sources is essential for effective climate change mitigation. Here we report observations of the CH4…
View article: Climatic impact of Arctic Ocean methane hydratedissociation in the 21&lt;sup&gt;st&lt;/sup&gt;-century
Climatic impact of Arctic Ocean methane hydratedissociation in the 21<sup>st</sup>-century Open
Greenhouse gas methane trapped in sub-seafloor gas hydrates may play an important role in a potential climate feedback system. The impact of future Arctic Ocean warming on the hydrate stability and its contribution to atmospheric methane c…
View article: Microseismicity Linked to Gas Migration and Leakage on the Western Svalbard Shelf
Microseismicity Linked to Gas Migration and Leakage on the Western Svalbard Shelf Open
The continental margin off Prins Karls Forland, western Svalbard, is characterized by widespread natural gas seepage into the water column at and upslope of the gas hydrate stability zone. We deployed an ocean bottom seismometer integrated…
View article: Postglacial response of Arctic Ocean gas hydrates to climatic amelioration
Postglacial response of Arctic Ocean gas hydrates to climatic amelioration Open
Significance Shallow Arctic Ocean gas hydrate reservoirs experienced distinct episodes of subglacial growth and subsequent dissociation that modulated methane release over millennial timescales.
View article: Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor
Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor Open
Massive methane blow-outs may be responsible for clusters of kilometer-wide craters in the Barents Sea.
View article: Bottom‐simulating reflector dynamics at Arctic thermogenic gas provinces: An example from Vestnesa Ridge, offshore west Svalbard
Bottom‐simulating reflector dynamics at Arctic thermogenic gas provinces: An example from Vestnesa Ridge, offshore west Svalbard Open
The Vestnesa Ridge comprises a >100 km long sediment drift located between the western continental slope of Svalbard and the Arctic mid‐ocean ridges. It hosts a deep water (>1000 m) gas hydrate and associated seafloor seepage system. Near‐…
View article: Enhanced CO <sub>2</sub> uptake at a shallow Arctic Ocean seep field overwhelms the positive warming potential of emitted methane
Enhanced CO <sub>2</sub> uptake at a shallow Arctic Ocean seep field overwhelms the positive warming potential of emitted methane Open
Significance Methane released from the seafloor and transported to the atmosphere has the potential to amplify global warming. At an arctic site characterized by high methane flux from the seafloor, we measured methane and carbon dioxide (…
View article: Constraints on oceanic methane emissions west of Svalbard from atmospheric in situ measurements and Lagrangian transport modeling
Constraints on oceanic methane emissions west of Svalbard from atmospheric in situ measurements and Lagrangian transport modeling Open
Methane stored in seabed reservoirs such as methane hydrates can reach the atmosphere in the form of bubbles or dissolved in water. Hydrates could destabilize with rising temperature further increasing greenhouse gas emissions in a warming…
View article: Constraints on oceanic methane emissions west of Svalbard from atmospheric in situ measurements and Lagrangian transport modeling
Constraints on oceanic methane emissions west of Svalbard from atmospheric in situ measurements and Lagrangian transport modeling Open
Methane stored in seabed reservoirs such as methane hydrates can reach the atmosphere in the form of bubbles or dissolved in water. Hydrates could destabilize with rising temperature further increasing greenhouse gas emissions in a warming…
View article: Extensive release of methane from Arctic seabed west of Svalbard during summer 2014 does not influence the atmosphere
Extensive release of methane from Arctic seabed west of Svalbard during summer 2014 does not influence the atmosphere Open
We find that summer methane (CH 4 ) release from seabed sediments west of Svalbard substantially increases CH 4 concentrations in the ocean but has limited influence on the atmospheric CH 4 levels. Our conclusion stems from complementary m…