S-wave reflection profiling: Applicability and demonstrated use in Denmark at site and regional scale

Multi-component reflection methods have gained acceptance for near surface mapping during recent years. Two case studies from Denmark employing shear wave reflection at different survey scales are presented. The first case study is a small site scale investigation to image the near surface lithology of a contaminated site. Here the S-wave reflection mapping was employed to update the Conceptual Site Model. The second application is a regional scale investigation with the aim to supplement mapping of unconsolidated sediments in buried valley structures as the mapping of these geological units is a primary objective in the hydrogeological mapping in Denmark. In both cases the method was utilised to obtain more detailed information on structures at the very near surface. Continuous advances in shear wave acquisition and processing methods contribute to increased applicability of shear wave reflection profiling in near surface characterisations.