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  • 2020-2024  (11)
Document type
Keywords
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Year
  • 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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    Ocean bottom seismic data from the continent-ocean transition in the Deep Galicia Margin, offshore west Iberia (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: 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
  • 6
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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
  • 7
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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
  • 8
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    Passive acoustic monitoring of a natural CO2 seep site – Implications for carbon capture and storage (2020)
    Elsevier
    Details
    Publication Date: 2023-02-08
    Description: Estimating the range at which an acoustic receiver can detect greenhouse gas (e.g., CO2) leakage from the sub-seabed is essential for determining whether passive acoustic techniques can be an effective environmental monitoring tool above marine carbon storage sites. Here we report results from a shallow water experiment completed offshore the island of Panarea, Sicily, at a natural CO2 vent site, where the ability of passive acoustics to detect and quantify gas flux was determined at different distances. Cross-correlation methods determined the time of arrival for different travel paths which were confirmed by acoustic modelling. We develop an approach to quantify vent bubble size and gas flux. Inversion of the acoustic data was completed using the modelled impulse response to provide equivalent propagation ranges rather than physical ranges. The results show that our approach is capable of detecting a CO2 bubble plume with a gas flux rate of 2.3 L/min at ranges of up to 8 m, and determining gas flux and bubble size accurately at ranges of up to 4 m in shallow water, where the bubble sound pressure is 10 dB above that of the ambient noise.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 9
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    Suitability analysis and revised strategies for marine environmental carbon capture and storage (CCS) monitoring (2021)
    Elsevier
    Details
    Publication Date: 2024-02-07
    Description: Highlights • Approaches for CO2 leakage detection, attribution and quantification monitoring exist. • Many approaches cover multiple monitoring tasks simultaneously. • Sonars and chemical sensors on ships or AUVs can cover large areas. • Newer, more specific technologies can detect, verify and quantify smaller, localised leaks. Environmental monitoring of offshore Carbon Capture and Storage (CCS) complexes requires robust methodologies and cost-effective tools to detect, attribute and quantify CO2 leakage in the unlikely event it occurs from a sub-seafloor reservoir. Various approaches can be utilised for environmental CCS monitoring, but their capabilities are often undemonstrated and more detailed monitoring strategies need to be developed. We tested and compared different approaches in an offshore setting using a CO2 release experiment conducted at 120 m water depth in the Central North Sea. Tests were carried out over a range of CO2 injection rates (6 - 143 kg d−1) comparable to emission rates observed from abandoned wells. Here, we discuss the benefits and challenges of the tested approaches and compare their relative cost, temporal and spatial resolution, technology readiness level and sensitivity to leakage. The individual approaches demonstrate a high level of sensitivity and certainty and cover a wide range of operational requirements. Additionally, we refer to a set of generic requirements for site-specific baseline surveys that will aid in the interpretation of the results. Critically, we show that the capability of most techniques to detect and quantify leakage exceeds the currently existing legal requirements.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 10
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    Quantification of dissolved CO2 plumes at the Goldeneye CO2-release experiment (2021)
    Elsevier
    Details
    Publication Date: 2024-02-07
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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