The Caspian Sea's status as a closed-water basin leads to periodic fluctuations in its level, Nazim Mahmudov, the head of the National Hydrometeorological Service said during a press briefing at an event held on August 12 - Caspian Day - by the Ministry of Ecology and Natural Resources at the Seaside National Park, Paralel.Az reports.

He stated that these level fluctuations are related to the elements of the Caspian Sea's water balance, such as the rivers feeding it, the amount of precipitation, evaporation rates, and, on the other hand, tectonic movements occurring on the seabed: "Moreover, the level may fluctuate throughout the year based on the seasons. It should be noted that although the level fluctuations of the Caspian Sea have been observed since ancient times, initially systematic observation works with a measuring device were carried out by E.A. Lents from the sea area around the city of Baku in 1837. based on systematic observations, it can be concluded that there were no sharp fluctuations in the level of the Caspian Sea from 1837 to the 30s of the 20th century Starting from 2010, sharp decline processes were observed again, and this process continued until the present period."

According to Nazim Mahmudov, since the level fluctuation is related to global climate changes, all Caspian littoral countries need to study this process, choose future climate scenarios, and develop adaptation measures.