© RIA Novosti. Oleg swallowtail
The ecosystem of the Black Sea remains a "serious but stable", and the maximum wave height increases, experts say.
International Black Sea Day is celebrated on October 31.
"Gradually, the average height of extreme waves (maximum wave height in the most stormy day) in the Black Sea is growing from year to year, or roughness of the sea increases," — said the member of RAS Sergey Dob.
According to the oceanographer, no single hypothesis to explain this phenomenon. Force winds at sea has not changed, and the frequency of storms has increased.
"The sea does not have time to calm down from one storm to another, and it turns out that the waves get bigger. If we have an average wind storm occurs again, then that is one thing, if we have, after five days of calm, a new storm — this is different," — said Dob.
He also added that the analysis of the behavior of the sea, is needed to calculate the stability of oil rigs — "say, we have calculated the height of the tower wave of 6 meters, and the wave will come 8 meters and destroyed everything." Assessment of extreme events are also needed in the construction of ports, oil and gas pipelines. The expert reminded of the tragedy in the Kerch Strait in 2007, when a huge wave height of the pier collapsed and led to the destruction of four ships, as well as bottling 2 tons of fuel oil.
Scientific studies of the Black Sea coastal waters is limited. The Russian scientists, according Dobrolyubova no navy, so it is impossible to take samples of water away from the shore, but on the basis of such data, scientists can study the ocean currents, the state of the animal and plant world. Furthermore it remains unknown behavior of hydrogen sulfide layer — especially the Black Sea, which, unlike other seas is many times closer to the surface at a depth of 150-200 meters.
"Students learn the sea on inflatable boats near Gelendzhik (South Branch Institute of Oceanography — Ed.) That are further than 500 meters from the shore do not depart, and oceanographer can bring when he once spent the night without seeing the shore," — said the scientist.
"State of the Black Sea ecology remains serious but stable. Biggest harm caused rivers, which is bringing in a sea of their untreated sewage," — said Dob.
The same opinion is shared by the representative of the World Wildlife Fund, WWF Russia's Krasnodar Territory Roman Mnatsakanov. According to him, the technogenic load will only increase due to the expansion, such as the port in Novorossiysk and the commissioning of the gas pipeline "South Stream", which will ensure the supply of Russian gas to Europe.
"It is not that nothing is being done, but the increase in traffic ahead while caring for the environment" — said Mnatsakanov.
In the waters of the sea, according to experts, continue to get fertilizer from rice fields of the Krasnodar Territory and harmful substances from landfills, which with the ground and river waters are also at sea.
"My friend has been studying mussels in Sevastopol. So they can not get water from the Black Sea and put mussels in it — it will not survive. First have to clean sea water", — the head of the marine program of WWF-Russia Konstantin Zgurovsky.
All three experts agree that, to preserve the Black Sea require targeted government program that would link the research interests of business and the local community.
In 1996, October 31, in Istanbul, representatives of the governments of Russia, Ukraine, Bulgaria, Romania, Turkey and Georgia signed a strategic action plan for the salvation of the Black Sea. The need for such a document has arisen in connection with the danger of the destruction of unique natural water areas. It was then decided to make October 31 the International Day of the Black Sea.
Source: RIA "Novosti".