Loch Linnhe Pockmarks and Gas locations

Abstract

This data is associated with the paper, Audsley et al. (In Press) Spatial relationships between sub-seabed gas and pockmarks in fjordic settings: evidence from Loch Linnhe, West Scotland. Geosciences. The data contains Esri shapefiles and bathymetric rasters used to observe the distribution of sub seabed gas and the presence of pockmarks within Loch Linnhe. Location and depth of the gas front was measured from original paper records of a boomer seismic survey from Loch Linnhe in 2010. These points were then processed using the inverse distance weighting tool within ArcGIS. The distribution of pockmarks was also analysed using the optimised hot-spot analysis tool within ArcGIS. The distribution of pockmarks and sub-seabed shallow gas within localised hot-spots show that important depocenters of organic matter exist within the region.