Integrated multichannel seismic profiler dataset from the southeastern apulia continental margin (Otranto Channel, Southern Adriatic Sea): Insights into fault-controlled gas seeps and geo-hazards
Abstract
This dataset presents an integrated collection of multichannel seismic (MCS) profiles acquired along the southeastern Apulia continental margin (Otranto Channel, southern Adriatic Sea) during the OCSS15 (2015), SISOC (2010), and Mediterranean Sea (MS, 1971) geophysical surveys conducted by the Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS). The dataset includes seismic lines acquired with different streamer lengths and energy sources, providing complementary resolution and penetration of the shallow and intermediate subsurface. High-resolution OCSS15 profiles (short streamer and Mini GI gun) image the upper sedimentary units, while SISOC data (longer streamer and higher-energy source) provide deeper subsurface constraints. The MS-29 profile (1971), recently reprocessed using Pre-Stack Depth Migration (PSDM), adds further deep structural information. Standardised processing workflows were applied to all lines to enhance the signal-to-noise ratio, suppress multiples, and preserve relative amplitudes. The dataset is provided in SEGY format, including both stacked and migrated sections. Given the rising costs and environmental restrictions associated with active marine seismic sources (e.g. air guns), new seismic acquisitions for scientific research are increasingly limited. Consequently, the reuse, reprocessing, and open dissemination of legacy and previously acquired datasets are becoming more important. This compilation offers a valuable multi-resolution…
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