Here we outline some new technologies in this context within case studies from different research projects including permanent installation of fiber-optic sensor cables behind casing, monitoring of high-temperature wells, a hybrid wireline logging system, and seismic recording. Here we outline some new technologies in this context within case studies from different research projects including permanent installation of fiber-optic sensor cables behind casing, monitoring of high-temperature wells, a hybrid wireline logging system, and seismic recording. New methods in geophysical exploration and monitoring with DTS and DAS New methods in geophysical exploration and monitoring with DTS and DAS J. Reinsch 1 1 GFZ German Research Centre for Geosciences 2 BAW Federal Waterways Engineering and. Cable landfall projects are complex as land, intertidal, nearshore, and offshore environments all coverage, creating an array of dynamic processes, constraints, hazards, and engineering challenges that an asset may face over its lifespan. Robust site characterisation and ground modelling is key for. ation (TLC) has experienced growing development in recent years and these assets have become strategic. We describe here the main methods and procedures that are followed during geo helves, slopes and deep basins in the Adriatic and Tyrrhenian seas have been recently designed ( overing a relatively. cation capability is an essential infrastructure com-ponent for communication between two countries or areas. Pre-lay surveys utilize Multibeam Echosounders (MBES) and Side-Scan-Sonar (SSS) for detailed seafloor mapping. Geotechnical sampling typically occurs at depths of 1-3 meters along cable routes. ROVs. Distributed Acoustic Sensing (DAS) has been increasingly utilized to build relationships in complex geophysics environments by utilizing continuous measurement along fiber optic cables with high spatial resolution and a frequency response of up to 10 KHz. DAS, as fiber optic technology examining.