The Shirshov Institute of Oceanology (P.P. Shirshov Institute of Oceanology (IO) RAN, ) is the premier research institution for ocean, climate, and earth science in Russia. It was established in 1946 and is part of the Russian Academy of Sciences. It is headquartered in Moscow. The institute is named after Pyotr Shirshov, who founded it in 1946.
In January 1941, the Laboratory of Oceanology of the Academy of Sciences of the Soviet Union was founded by researcher Pyotr Shirshov. The organisation was the first institution in the country dedicated to the study of oceanology. These plans were however, disrupted by World War II, with Shirshov being appointed the People's Commissar of the Maritime Fleet.
On 31 January 1946, by decision of the Academy of Sciences, the laboratory was reorganised and formalised as the Institute of Oceanology, with Pyotr Shirshov appointed as the institutes first director. By decision of the presidium, the following areas of research were identified:
Throughout the 1990s, the Institute closely cooperated with the Canadian filmmaker James Cameron on the production of Titanic (1997), providing essential technical assistance through dives to the wreck site, located at a depth of 3,821 metres. A number of dives were conducted from the research vessel Akademik Mstislav Keldysh, conducted by the deep-submergence vehicles Mir-1 and Mir-2, all of which appear in the film. The main pilot of the Mir submersibles was explorer and pilot Anatoly Sagalevich.
The institute would cooperate with James Cameron for several more expeditions. In 2001, another expedition to the wreck of the Titanic for the documentary Ghosts of the Abyss took place, as well as another in 2002 to the German battleship Bismarck for the Discovery Channel special '. Cameron also led an expedition for his 2005 documentary Aliens of the Deep.
In 1995, Akademik Mstislav Keldysh, alongside the two Mir submersibles embarked on a salvage operation to locate the Japanese submarine I-52 and retrieve her supposed valuable cargo of gold. Despite a number of dives being conducted, no gold was discovered.
In addition, several more expeditions to the Titanic took place in 2000 and 2005 with RMS Titanic Inc.
In addition to its headquarters in Moscow, the Shirshov Institute maintains branches in Kaliningrad, Gelendzhik, Saint Petersburg, Arkhangelsk, Astrakhan and Vladivostok.
As stated, the institute carries out research in the following fields: