REMOTE SENSING, GEOPHYSICAL AND GEOLOGICAL SURVEYS IN THE BULGARIAN BLACK SEA SECTOR: REVIEW OF AVAILABLE DATA AND ADVANCEMENTS.

This study presents an review of the geophysical and geological data available for the Bulgarian Black Sea shelf, highlighting the methodologies employed for data storage and their effectiveness. Such data are crucial for understanding the shelf's historical dynamics and ongoing changes, serving as a foundation for various scientific investigations. Through an analysis of geological, morphological, geophysical, and geochronological data, we trace the evolution of the shelf's structure and movements, delineating its key characteristics and trends. The research, inquiries, and interpretations conducted over the years have yielded significant hypotheses and conclusions, setting the stage for future multidisciplinary studies. Technological advancements in data collection and processing have continually enhanced the depth, accuracy, and scope of the information gathered, underpinning the importance of these studies for the scientific community's efforts in diverse exploratory missions. This article details the data sourced from the Institute of Oceanology (BAS) and the Centre for Underwater Archaeology (CUA-Sozopol), emphasizing the use of primary geophysical techniques such as single and multibeam echo sounders, unmanned aerial vehicles, side-scan sonar, sub-bottom profilers, LIDAR, and localized electrical and magnetic surveys. [ABSTRACT FROM AUTHOR]