Scientists at the University of Southampton conducted a comprehensive study of sea level changes across the northern Adriatic region over the past 10,000 years. The research combined seismic data with sedimentary cores extracted from coastal basins in northern Italy, Slovenia, and northern Croatia to model historical sea level variations and reconstruct ancient landscapes.
Findings published in Quaternary Science Reviews reveal significant transformations in the region’s geography. The area now occupied by the Venice lagoon was once a dry landscape that extended more than 30 miles from the present coastline. Similarly, Trieste was previously characterized by hills that overlooked swamps and lagoons rather than the coastal geography known today.
The study identifies sea level rise as a gradual but persistent process that began slightly more than 10,000 years ago. During certain periods, water levels increased at rates reaching 25mm annually. These changes unfolded in three distinct phases, with the most substantial rises occurring during the earliest periods of human presence in the region.
Mesolithic hunter-gatherer populations inhabiting the area experienced these environmental shifts firsthand, requiring them to continuously adjust their hunting and fishing practices to accommodate the expanding waters. Following the most dramatic phase of change, the region entered a period of relative stability approximately 6,000 years ago. This stabilization enabled human communities to establish permanent settlements and develop agricultural practices, creating the foundation for the landscape and civilization patterns that characterize the region in contemporary times.
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