Controlled Source Seismic data are essential for understanding the structure and composition of the subsurface. The paper presents a metadata model that allows the user to judge whether a data set is suitable for a specific re-use purpose. The model’s implementation as a metadata catalogue will provide FAIR and open metadata on assets of any legal status and make the assets available for multidisciplinary data integration on the European Plate Observing System (EPOS) research infrastructure.

Passive seismic exploration is an environmentally, friendly and cost effective technique, as it uses ambient noise as a source. As part of a feasibility study for storage of CO₂ below the Baltic Sea, our studies show that passive seismic results correlate well with active seismic data and the borehole section and reveal some potential deep geological information which the active data could not provide. In some cases, it may have the potential to replace active seismic imaging.

Geological storage of CO₂ has emerged again in recent years as a complement to reducing CO₂ emissions to the atmosphere. The Swedish government recently gave the task of further studying the potential for CO₂ storage within Swedish territory to the Geological Survey of Sweden. We report here on results from investigations on southern Gotland island. We find that we can map several geological formations of interest and that the rock is seismically anisotropic.

Reflection seismic data can provide high-resolution images of the Earth's crust and allow a better understanding of crustal structure on all continents. In this paper we revisit reflection seismic data that were acquired previously across the central part of the Scandinavian Peninsula. Merging individual components of the data set in a more optimal manner resulted in a new image of the crust below the Scandinavian Caledonides with a revised interpretation of the crustal structure in the west.

Sinkholes and caves underground pose challenges for various industries in the karst area, particularly those, such as construction, agriculture, and infrastructure development, dependent on stable ground conditions. In this study, we applied seismic reflection, a geophysical method, to delineate shallow subsurface complex geological structures and to better understand limestone cave formation in Shenzhen, China.