{"ob_id":37072,"uuid":"96dc6996b5534052ab44f3098a99a357","title":"Multi-frequency, multi-channel seismic dataset acquired around an active fluid flow structure: Scanner Pockmark, North Sea.","abstract":"A multi-channel seismic dataset was acquired during RRS James Cook cruise JC152 (August - September 2017), around the Scanner Pockmark Complex in the North Sea. Data were recorded using a number of different seismic sources, comprising: \r\n\r\n1) a GI airgun array, used in two different configurations for separate parts of the survey, \r\ni) a 420 ci (2 x 105/105 ci) array operated in harmonic mode and fired at 8 s intervals, and \r\nii) a 300 ci (2 x 45/105 ci) array operated in true GI mode and fired at 6 s intervals, both towed at 2 m depth below sea surface; \r\n\r\n2) an Applied Acoustic Engineering Squid sparker (1750 or 2000 J), towed at the sea surface and triggered at 2 s intervals; and, \r\n\r\n3) a Duraspark sparker (2000 J), towed at the sea surface and triggered at 2 s intervals. Signals produced by the GI airguns and surface sparkers were recorded on two towed multi-channel streamers: \r\na) a 60 channel, 1 m group interval streamer recorded on a Geometrics Strataview R60 recording system, and \r\nb), a 120 channel, 1.56 m group interval GeoEel streamer, at sampling rates between 0.125 and 0.5 ms depending on the streamer and source pairing. \r\n\r\nData are provided in standard SEG-D format. The data were acquired as part of the 'Characterization of major overburden leakage pathways above sub-seafloor CO2 storage reservoirs in the North Sea' (CHIMNEY) project, funded by the Natural Environment Research Council (NERC) under grant reference NE/N016130/1.","keywords":"seismic reflection, ocean bottom seismograph, active source seismology, passive source seismology, fluid flow pathways","publicationState":"published","dataPublishedTime":"2022-04-26T16:12:02","doiPublishedTime":null,"updateFrequency":"notPlanned","status":"completed","result_field":{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/37073/?format=json","dataPath":"/bodc/USO220011/CHIMNEY_MCS","oldDataPath":[],"storageLocation":"internal","storageStatus":"online","volume":561573583472,"numberOfFiles":203638,"fileFormat":"Data are segd formatted data files"},"timePeriod":"https://catalogue.ceda.ac.uk/api/v2/times/10246/?format=json","geographicExtent":"https://catalogue.ceda.ac.uk/api/v2/bboxes/3424/?format=json","nonGeographicFlag":false,"phenomena":[],"dataLineage":"Multi-channel seismic data were acquired during NERC cruise JC152 from August-September 2017 in the North Sea. The raw data were provided to the British Oceanographic Data Centre for long-term archive. Data were subsequently archived at CEDA.","removedDataTime":null,"removedDataReason":"","language":"English","identifier_set":[],"projects":["https://catalogue.ceda.ac.uk/api/v2/projects/37051/?format=json"],"observationcollection_set":["https://catalogue.ceda.ac.uk/api/v2/observationcollections/37081/?format=json"],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/177224/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177227/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177228/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177226/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177221/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177225/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177223/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177222/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177229/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177230/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177231/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177232/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/177233/?format=json"],"procedureAcquisition":"https://catalogue.ceda.ac.uk/api/v2/acquisitions/37074/?format=json","procedureCompositeProcess":null,"procedureComputation":null,"permissions":[{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/2526/?format=json","useLimitation":null,"accessConstraints":null,"accessCategory":"public","accessRoles":null,"label":"public: None group","licenceURL":"http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/","licenceClassifications":"any, attribution required"}],"discoveryKeywords":[{"ob_id":1138,"name":"NDGO0003"}]}