This dataset contains data from a marine geophysical survey which took place on 1st October 2014 in the area of Ardmucknish Bay on board the RV White Ribbon. The survey was carried out by the British Geological Survey (BGS). This was a follow up survey to the previous work carried out in this area (Surveys: 2011/4 and 2012/5, 2012/7) to monitor changes in the geometry of gas charged sediments. QICS (Quantifying and monitoring potential ecosystem impacts of geological carbon storage) was a scientific research project funded by NERC; its purpose was to improve the understanding of the sensitivities of the UK marine environment to a potential leak from a carbon capture storage (CCS) system. Sub bottom seismic profiling data were collected using an Applied Acoustics surface tow boomer (STB). Webpage www.bgs.ac.uk/QICS/.

CO2 was injected into shallow unconsolidated marine sediments in Ardmucknish Bay, Oban. 2D seismic reflection data were collected pre-release (15/05/2012), syn-release (17/05/2012, 18/05/2012, 19/052012, 29/05/2012, 30/05/2012, 20/06/2012) and after release stages (23/04/2014 and 24/04/2014) of CO2 help to better understand the spatial and temporal evolution of free gas anomalies within the overburden. The impact of CO2 on sediment acoustic properties, namely seismic reflectivity and attenuation, was also investigated. This dataset was collected by the National Oceanography Centre Southampton (NOCS) and the British Geological Survey (BGS) under the program QICS (Quantifying and monitoring environmental impacts of geological carbon storage) which was funded by the Natural Environment Research Council (NERC), with support from the Scottish Government. The dataset includes segy files, a presentation which summarises the main results and a map showing the spatial extent of the seismic data collected after gas release. QICS project website: http://www.bgs.ac.uk/qics/home.html. Cevatoglu et al., 2015. Gas migration pathways, controlling mechanisms and changes in sediment acoustic properties observed in a controlled sub-seabed CO2 release experiment. Int J Greenhouse Gas Control. DOI:10.1016/j.ijggc.2015.03.005. NERC grant NE/H013873/1

CO2 was injected into shallow unconsolidated marine sediments in Ardmucknish Bay, Oban. 2D seismic reflection data were collected pre-release (15/05/2012), syn-release (17/05/2012, 18/05/2012, 19/052012, 29/05/2012, 30/05/2012, 20/06/2012) and after release stages (23/04/2014 and 24/04/2014) of CO2 help to better understand the spatial and temporal evolution of free gas anomalies within the overburden. The impact of CO2 on sediment acoustic properties, namely seismic reflectivity and attenuation, was also investigated. This dataset was collected by the National Oceanography Centre Southampton (NOCS) and the British Geological Survey (BGS) under the program QICS (Quantifying and monitoring environmental impacts of geological carbon storage) which was funded by the Natural Environment Research Council (NERC), with support from the Scottish Government. The dataset includes segy files, a presentation which summarises the main results and a map showing the spatial extent of the seismic data collected after gas release. QICS project website: http://www.bgs.ac.uk/qics/home.html. Cevatoglu et al., 2015. Gas migration pathways, controlling mechanisms and changes in sediment acoustic properties observed in a controlled sub-seabed CO2 release experiment. Int J Greenhouse Gas Control. DOI:10.1016/j.ijggc.2015.03.005. The post-release data is currently restricted. NERC grant NE/H013873/1

This dataset contains data from a marine geophysical and multibeam survey took place in June 2012 in the area of Ardmucknish Bay on board the RV White Ribbon. This was a follow up survey to the previous work carried out in this area (2011/4 and 2012/5). QICS (Quantifying and monitoring potential ecosystem impacts of geological carbon storage) was a scientific research project funded by NERC; its purpose was to improve the understanding of the sensitivities of the UK marine environment to a potential leak from a carbon capture storage (CCS) system. Sea floor bathymetry data were collected using a Kongsberg EM3002D multibeam system. Sub bottom seismic profiling data were collected using an Applied Acoustics surface tow boomer (STB). Webpage www.bgs.ac.uk/QICS/. NERC grant NE/H013954/1.

This dataset contains data from a marine multibeam and geophysical survey which took place in June 2011 in the Ardmucknish Bay area on board the BGS survey vessel RV White Ribbon. The survey was carried out by the British Geological Survey (BGS) in collaboration with Scottish Association for Marine Science (SAMS) and National Oceanography Centre (SAMS). QICS (Quantifying and monitoring potential ecosystem impacts of geological carbon storage) was a scientific research project funded by NERC. The purpose was to collect the data necessary to identify a potential directional drilling route from shore to a submerged gas release point. Sea floor bathymetry data were collected using an EM3002D. Sub bottom seismic profiling data were collected using a surface tow boomer. Technical details of the survey are contained in the BGS Report of Survey. Webpage www.bgs.ac.uk/QICS/. NERC Grant. NE/H013962/1.

This dataset contains data from a marine geophysical and multibeam survey which took place in April 2012 in the area of Ardmucknish Bay on board the RV White Ribbon. This was a follow up survey to the previous work carried out in this area in 2011 (2011/4). QICS (Quantifying and monitoring potential ecosystem impacts of geological carbon storage) was a scientific research project funded by NERC; its purpose was to improve the understanding of the sensitivities of the UK marine environment to a potential leak from a carbon capture storage (CCS) system. The aim of the survey was to assess any affect the drilling of the borehole had on the underlying sediments. Sea floor bathymetry data were collected using a Kongsberg EM3002D multibeam system. Sub bottom seismic profiling data were collected using an Applied Acoustics surface tow boomer (STB). Technical details of the survey are contained in the BGS Report of Survey. Webpage www.bgs.ac.uk/QICS/. NERC Grant NE/H013954/1.