Scientists discover dangerous water oscillations between Lake Varna and Black Sea
Researchers from Tallinn University of Technology have identified dangerous water oscillations in the canal connecting Lake Varna to the Black Sea. The study suggests that resonance within the canal-lake system causes significant water movement, which could impact vessel navigation.
Why it matters
Understanding these flow dynamics is critical for maritime safety and infrastructure planning in coastal regions.
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Add to Preferred Sources Location of the study areas. Credit: Ocean Science (2026). DOI: 10.5194/os-22-2471-2026 For years, pilots have observed strong and unusual currents in the 2.4-kilometer-long (1.5-mile-long), 300-meter-wide (984-foot-wide) canal connecting Lake Varna with the Black Sea. Maarja Kruusmaa, an academician and professor at Tallinn University of Technology, and researcher Laura Piho, working with the Port of Varna, undertook detailed measurements to determine the causes of the phenomenon.
"For this, we used Hydromast measuring stations developed at Tallinn University of Technology's Center for Biorobotics. Three of the stations recorded the speed and direction of water movement as well as water levels at one-minute intervals," Piho explained.
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