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  • 2020-2024  (11)
  • 2015-2019  (5)
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Keywords
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  • 1
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    Paleosecular geomagnetic variation for the Holocene measured from U-channels 2014-2016 (2020)
    PANGAEA
    In:  University of Southampton
    Details
    Publication Date: 2023-01-30
    Description: Inclination, declination, and relative palaeointensity calculated as a composite (WINPSV-12K) of four sediment cores (+54-03/57PC, +54-03/64PC, +54-03/67PC, +54-03/68PC) from Windermere, UK, spanning the Holocene. The inclination and declination are reliable, but the RPI is not reliable and should not be used in publications. It is made available for those who wish to plot it anyway. For each variable we have included the calculated values and the 5% and 95% confidence envelope limits. Values are calaculated for every 50 year timestep.
    Keywords: +54-03/57PC; +54-03/64PC; +54-03/67PC; +54-03/68PC; AGE; British Geological Survey; Calculated; COMPCORE; Composite Core; Confidence interval lower limit; Confidence interval upper limit; Declination; Holocene; Inclination; lake sediments; Lake Windermere, United Kingdom; Magnetic; Palaeomagnetic; Paleomagnetic; Paleosecular variation; PC; Piston corer; Principal component analyses (PCA); Relative paleointensity proxy; U-channel; Windermere; WINPSV-12K
    Type: Dataset
    Format: text/tab-separated-values, 2106 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Ocean bottom seismometer sgy-files of seismic refraction and wide angle data from profiles P1000 and P2000 during Maria S. Merian cruise MSM63 with links to data files (2020)
    PANGAEA
    Details
    Publication Date: 2023-01-30
    Description: High-resolution 3D seismic refraction data during research cruise MSM63 in April/May 2017 onboard RV Maria S. Merian. 15 ocean bottom seismometers sampled seismic shots around the Scanner Pockmark, central North Sea. Seismic data are in standard segy-format.
    Keywords: Central North Sea; Event label; File content; File format; File name; File size; Maria S. Merian; MCSEIS; MSM63; MSM63_5-1; MSM63_5-10; MSM63_5-11; MSM63_5-12; MSM63_5-13; MSM63_5-14; MSM63_5-15; MSM63_5-16; MSM63_5-17; MSM63_5-2; MSM63_5-3; MSM63_5-5; MSM63_5-6; MSM63_5-7; MSM63_5-9; MSM63_7-2; MSM63_8-1; Multichannel seismics; North Sea; OBS; OBS01; OBS02; OBS03; OBS05; OBS06; OBS07; OBS09; OBS10; OBS11; OBS12; OBS13; OBS14; OBS15; OBS16; OBS17; Ocean bottom seismometer; Optional event label; P1000; P2000; PERMO; Pockmark; seismic refraction; Uniform resource locator/link to metadata file; Uniform resource locator/link to sgy data file
    Type: Dataset
    Format: text/tab-separated-values, 160 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Ocean bottom seismic data from the continent-ocean transition in the Deep Galicia Margin, offshore west Iberia: continuous data (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: Seismic data was acquired to study the transition from rifted continental crust to oceanic crust at the Deep Galicia Margin from June to August 2013. 3D Multichannel reflection and coincident wide-angle seismic data were acquired simultaneously as part of a seismic experiment over an area of 80 km long and 25 km wide in the Deep Galicia margin. The multichannel reflection seismic volume was acquired by the R/V Marcus G. Langseth, which provided a source for the ocean bottom seismic data. A total of 86 ocean bottom hydrophones/seismometer deployments were carried out by F/S Poseidon. Two airgun arrays with total gun volumes of 3,300 cu.in. were deployed as seismic sources. Shots were fired alternately using two source arrays every 37.5 m (shot interval of ~ 16 s with ship speed of 4.5 knots). Data were converted into SEGY format. Further details are available at https://doi.org/10.1038/NGEO2671.
    Keywords: Binary Object; Binary Object (File Size); Continental rifting; continent-ocean transition; DATE/TIME; Event label; File name; Julian day; Latitude of event; Longitude of event; OBH; OBH 02; OBH 04; OBH 06; OBH 08; OBH 12; OBH 14; OBH 26; OBH 30; OBH 32; OBH 56; OBH 58; OBH 60; OBH 62; OBH 63; OBH 65; OBH 67; OBH 68; OBH 71; OBH 79; OBH 80; OBH 81; OBH 82; OBH 83; OBH 85; OBH 86; OBS; OBS 1; OBS 11; OBS 13; OBS 15; OBS 16; OBS 17; OBS 18; OBS 19; OBS 20; OBS 21; OBS 22; OBS 23; OBS 24; OBS 25; OBS 27; OBS 29; OBS 3; OBS 33; OBS 34; OBS 35; OBS 37; OBS 38; OBS 39; OBS 40; OBS 41; OBS 42; OBS 43; OBS 45; OBS 46; OBS 47; OBS 48; OBS 5; OBS 51; OBS 52; OBS 53; OBS 54; OBS 57; OBS 59; OBS 61; OBS 64; OBS 66; OBS 69; OBS 72; OBS 73; OBS 74; OBS 75; OBS 76; OBS 78; OBS 9; Ocean bottom hydrophone; Ocean bottom seismometer; POS453; POS453_723-3; POS453_724-1; POS453_725-1; POS453_726-1; POS453_728-1; POS453_729-1; POS453_730-1; POS453_731-1; POS453_733-1; POS453_734-1; POS453_735-1; POS453_736-1; POS453_737-1; POS453_738-1; POS453_739-1; POS453_740-1; POS453_741-1; POS453_742-1; POS453_743-1; POS453_746-1; POS453_747-1; POS453_748-1; POS453_749-1; POS453_751-1; POS453_752-1; POS453_753-1; POS453_754-1; POS453_755-1; POS453_756-1; POS453_757-1; POS453_758-1; POS453_759-1; POS453_761-1; POS453_762-1; POS453_763-1; POS453_764-1; POS453_765-1; POS453_766-1; POS453_767-1; POS453_769-1; POS453_770-1; POS453_771-1; POS453_773-1; POS453_774-1; POS453_775-1; POS453_778-1; POS453_779-1; POS453_780-1; POS453_781-1; POS453_782-1; POS453_783-1; POS453_785-1; POS453_786-1; POS453_787-1; POS453_788-1; POS453_789-1; POS453_790-1; POS453_792-1; POS453_793-1; POS453_794-1; POS453_795-1; POS453_796-1; POS453_797-1; POS453_798-1; POS453_799-1; POS453_801-1; POS453_802-1; POS453_820-1; POS453_821-1; POS453_822-1; POS453_823-1; POS453_824-1; POS453_825-1; POS453_826-1; Poseidon; Station label; Type; West Iberia; wide-angle seismic
    Type: Dataset
    Format: text/tab-separated-values, 25990 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Ocean bottom seismic data from the continent-ocean transition in the Deep Galicia Margin, offshore west Iberia: active source data (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: Seismic data was acquired to study the transition from rifted continental crust to oceanic crust at the Deep Galicia Margin from June to August 2013. 3D Multichannel reflection and coincident wide-angle seismic data were acquired simultaneously as part of a seismic experiment over an area of 80 km long and 25 km wide in the Deep Galicia margin. The multichannel reflection seismic volume was acquired by the R/V Marcus G. Langseth, which provided a source for the ocean bottom seismic data. A total of 86 ocean bottom hydrophones/seismometer deployments were carried out by F/S Poseidon. Two airgun arrays with total gun volumes of 3,300 cu.in. were deployed as seismic sources. Shots were fired alternately using two source arrays every 37.5 m (shot interval of ~ 16 s with ship speed of 4.5 knots). Data were converted into SEGY format. Further details are available at https://doi.org/10.1038/NGEO2671.
    Keywords: Binary Object; Binary Object (File Size); Continental rifting; continent-ocean transition; Event label; Line; OBH; OBH 02; OBH 04; OBH 06; OBH 08; OBH 26; OBH 30; OBH 32; OBH 56; OBH 58; OBH 60; OBH 62; OBH 63; OBH 65; OBH 67; OBH 68; OBH 70; OBS; OBS 11; OBS 16; OBS 17; OBS 18; OBS 19; OBS 20; OBS 22; OBS 23; OBS 24; OBS 28; OBS 34; OBS 38; OBS 40; OBS 42; OBS 43; OBS 46; OBS 48; OBS 52; OBS 54; OBS 59; OBS 64; OBS 69; OBS 7; OBS 73; OBS 75; Ocean bottom hydrophone; Ocean bottom seismometer; POS453; POS453_724-1; POS453_729-1; POS453_731-1; POS453_734-1; POS453_736-1; POS453_738-1; POS453_740-1; POS453_742-1; POS453_746-1; POS453_748-1; POS453_751-1; POS453_752-1; POS453_754-1; POS453_755-1; POS453_757-1; POS453_763-1; POS453_766-1; POS453_768-1; POS453_773-1; POS453_774-1; POS453_775-1; POS453_776-1; POS453_779-1; POS453_780-1; POS453_781-1; POS453_791-1; POS453_792-1; POS453_793-1; POS453_794-1; POS453_795-1; POS453_796-1; POS453_797-1; POS453_798-1; POS453_799-1; POS453_820-1; POS453_821-1; POS453_822-1; POS453_823-1; POS453_824-1; POS453_825-1; POS453_826-1; Poseidon; Station label; Type; West Iberia; wide-angle seismic
    Type: Dataset
    Format: text/tab-separated-values, 54004 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Three-dimensional four-component ocean bottom seismometer dataset acquired from an active fluid flow structure: Scanner pockmark, North Sea in 2017 (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: The three-dimensional wide-angle active source seismic dataset was acquired during the CHIMNEY seagoing expedition (RRS James Cook – JC152 experiment; August – September 2017), at the Scanner pockmark, an active fluid flow structure in the North Sea. The aim of the data collection was to understand the structure and the physical properties below this methane-venting seafloor depression. The data were acquired using two GI-guns in harmonic mode (2x210 cu. in.) and 25 four-component Ocean Bottom Seismometers recording at a sampling rate of 4 kHz. The shooting interval was 8 s, equivalent to 18.5 m at the mean vessel speed of 4.5 kn. Additional seismic reflection data acquired during JC152 are used for comparison with the ocean bottom seismometer data. Three sub-bottom profiler profiles, one horizon surface (Base of the Witch Ground formation) and one multi-channel profile acquired with a surface sparker are used for comparison. The sub-bottom profiler data were acquired using a chirp sweep lasting 0.035 s, with a bandwidth of 2.8-6 kHz, and a central frequency of 4.4 kHz. These profiles have a trace spacing of 2.5 m and a vertical resolution of 〈 15 cm. The base of the Witch Ground formation is interpreted as a surface from over 100 SBP profiles and the surface attributes are used for comparison with OBS recordings. The Squid surface sparker data were acquired with a 80-1800 Hz source and 2 s shot interval (~4.6 m at 4.5 kn), and were recorded on a multi-channel streamer.
    Keywords: Binary Object; Binary Object (File Size); Binary Object (Media Type); Date/Time of event; Date/Time of event 2; Event label; four components; GI-gun; James Cook; JC152; JC152_OBS-1; JC152_OBS-10; JC152_OBS-11; JC152_OBS-12; JC152_OBS-13; JC152_OBS-14; JC152_OBS-15; JC152_OBS-16; JC152_OBS-17; JC152_OBS-18; JC152_OBS-19; JC152_OBS-2; JC152_OBS-20; JC152_OBS-21; JC152_OBS-22; JC152_OBS-23; JC152_OBS-24; JC152_OBS-25; JC152_OBS-3; JC152_OBS-4; JC152_OBS-5; JC152_OBS-6; JC152_OBS-7; JC152_OBS-8; JC152_OBS-9; Latitude of event; Longitude of event; OBS; ocean bottom seismometer; Ocean bottom seismometer; Scanner Pockmark; Scanner pockmark, North Sea; S-wave splitting; wide-angle data
    Type: Dataset
    Format: text/tab-separated-values, 213 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Ocean bottom seismic data from the continent-ocean transition in the Deep Galicia Margin, offshore west Iberia: miniSeed data (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: Seismic data was acquired to study the transition from rifted continental crust to oceanic crust at the Deep Galicia Margin from June to August 2013. 3D Multichannel reflection and coincident wide-angle seismic data were acquired simultaneously as part of a seismic experiment over an area of 80 km long and 25 km wide in the Deep Galicia margin. The multichannel reflection seismic volume was acquired by the R/V Marcus G. Langseth, which provided a source for the ocean bottom seismic data. A total of 86 ocean bottom hydrophones/seismometer deployments were carried out by F/S Poseidon. Two airgun arrays with total gun volumes of 3,300 cu.in. were deployed as seismic sources. Shots were fired alternately using two source arrays every 37.5 m (shot interval of ~ 16 s with ship speed of 4.5 knots). Data were converted into SEGY format. Further details are available at https://doi.org/10.1038/NGEO2671.
    Keywords: Binary Object; Binary Object (File Size); Continental rifting; continent-ocean transition; DATE/TIME; Date/time end; Event label; OBS; OBS 72; OBS 73; Ocean bottom seismometer; POS453; POS453_731-1; POS453_739-1; Poseidon; Station label; West Iberia; wide-angle seismic
    Type: Dataset
    Format: text/tab-separated-values, 1392 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Ocean bottom seismic data from the continent-ocean transition in the Deep Galicia Margin, offshore west Iberia (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Seismic data was acquired to study the transition from rifted continental crust to oceanic crust at the Deep Galicia Margin from June to August 2013. 3D Multichannel reflection and coincident wide-angle seismic data were acquired simultaneously as part of a seismic experiment over an area of 80 km long and 25 km wide in the Deep Galicia margin. The multichannel reflection seismic volume was acquired by the R/V Marcus G. Langseth, which provided a source for the ocean bottom seismic data. A total of 86 ocean bottom hydrophones/seismometer deployments were carried out by F/S Poseidon. Two airgun arrays with total gun volumes of 3,300 cu.in. were deployed as seismic sources. Shots were fired alternately using two source arrays every 37.5 m (shot interval of ~ 16 s with ship speed of 4.5 knots). Data were converted into SEGY format. Further details are available at https://doi.org/10.1038/NGEO2671.
    Keywords: Continental rifting; continent-ocean transition; West Iberia; wide-angle seismic
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    A novel sub-seabed CO2 release experiment informing monitoring and impact assessment for geological carbon storage (2015)
    Elsevier
    In:  International Journal of Greenhouse Gas Control, 38 . pp. 3-17.
    Details
    Publication Date: 2015-07-06
    Description: Highlights • A unique and novel CO2 release experiment in the marine environment. • Field-scale simulated leak of CO2 gas from a carbon capture and storage facility. • Experimental design and set-up for the QICS experiment, conducted during the summer of 2012. Abstract Carbon capture and storage is a mitigation strategy that can be used to aid the reduction of anthropogenic CO2 emissions. This process aims to capture CO2 from large point-source emitters and transport it to a long-term storage site. For much of Europe, these deep storage sites are anticipated to be sited below the sea bed on continental shelves. A key operational requirement is an understanding of best practice of monitoring for potential leakage and of the environmental impact that could result from a diffusive leak from a storage complex. Here we describe a controlled CO2 release experiment beneath the seabed, which overcomes the limitations of laboratory simulations and natural analogues. The complex processes involved in setting up the experimental facility and ensuring its successful operation are discussed, including site selection, permissions, communications and facility construction. The experimental design and observational strategy are reviewed with respect to scientific outcomes along with lessons learnt in order to facilitate any similar future.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    DOI: 10.1016/j.ijggc.2014.09.007
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 9
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    Marine baseline and monitoring strategies for carbon dioxide capture and storage (CCS) (2015)
    Elsevier
    In:  International Journal of Greenhouse Gas Control, 38 . pp. 221-229.
    Details
    Publication Date: 2015-07-03
    Description: Highlights • Development of a marine monitoring system suitable for operational CCS is achievable. • Monitoring should be hierarchical, starting with anomaly detection. • Comprehensive baselines are required to support monitoring. Abstract The QICS controlled release experiment demonstrates that leaks of carbon dioxide (CO2) gas can be detected by monitoring acoustic, geochemical and biological parameters within a given marine system. However the natural complexity and variability of marine system responses to (artificial) leakage strongly suggests that there are no absolute indicators of leakage or impact that can unequivocally and universally be used for all potential future storage sites. We suggest a multivariate, hierarchical approach to monitoring, escalating from anomaly detection to attribution, quantification and then impact assessment, as required. Given the spatial heterogeneity of many marine ecosystems it is essential that environmental monitoring programmes are supported by a temporally (tidal, seasonal and annual) and spatially resolved baseline of data from which changes can be accurately identified. In this paper we outline and discuss the options for monitoring methodologies and identify the components of an appropriate baseline survey.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    DOI: 10.1016/j.ijggc.2014.10.004
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 10
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    Gas migration pathways, controlling mechanisms and changes in sediment acoustic properties observed in a controlled sub-seabed CO2 release experiment (2015)
    Elsevier
    In:  International Journal of Greenhouse Gas Control, 38 . pp. 26-43.
    Details
    Publication Date: 2015-07-03
    Description: Highlights • Repeated 2D seismic reflection surveys map migration of CO2 in marine sediments. • CO2 is imaged as bright spots, acoustic blanking, and by reflector terminations. • Seismic chimneys are interpreted as inter-connected micro-scale fractures. • CO2 migration is controlled by stratigraphy and total subsurface gas volume/injection rate. • CO2 changes sediment acoustic properties, including reflectivity and attenuation. Abstract Carbon capture and storage (CCS) is a key technology to potentially mitigate global warming by reducing carbon dioxide (CO2) emissions from industrial facilities and power generation that escape into the atmosphere. To broaden the usage of geological storage as a viable climate mitigation option, it is vital to understand CO2 behaviour after its injection within a storage reservoir, including its potential migration through overlying sediments, as well as biogeochemical and ecological impacts in the event of leakage. The impacts of a CO2 release were investigated by a controlled release experiment that injected CO2 at a known flux into shallow, under-consolidated marine sediments for 37 days. Repeated high-resolution 2D seismic reflection surveying, both pre-release and syn-release, allows the detection of CO2-related anomalies, including: seismic chimneys; enhanced reflectors within the subsurface; and bubbles within the water column. In addition, reflection coefficient and seismic attenuation values calculated for each repeat survey, allow the impact of CO2 flux on sediment acoustic properties to be comparatively monitored throughout the gas release. CO2 migration is interpreted as being predominantly controlled by sediment stratigraphy in the early stages of the experiment. However, either the increasing flow rate, or the total injected volume become the dominant factors determining CO2 migration later in the experiment.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    DOI: 10.1016/j.ijggc.2015.03.005
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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