John Francis Ropek this nuclear submarine, Ropek was involved in pioneering oceanographic studies under the polar ice cap of the North Pole, resulting in the report "Characteristics of Polar Ice Observed During the 1957 Arctic Cruise of the USS Nautilus" (Defense Technical Information Center 1958). As a scientist he published many technical papers, such as "US Navy Hydrographic Office synoptic and prognostic wave charts" (US Navy Hydrographic Office 1955), and "An Application of Naval Oceanographic Development to Inland Waters" (Defense Technical Information Center 1967). Later, Ropek was deputy director of the prediction division of the Naval Oceanographic Office. Late in life he lived
North Pole-36 a piece of sea ice that was approximately across. At the moment of disembarkation the station was in so-called to "the Hollow of submariners" between Wrangel island and the North Pole. The vessel "Akademik Fyodorov" carried out the delivery of the expedition to the ice. The station was removed with the nuclear icebreaker NS "Yamal" in the Arctic ocean at the end of August 2009. The evacuation of the station from the drifting ice floe took three days of continuous work. The chief of high-latitude arctic expeditions Vladimir Sokolov supervised the work. North Pole-36 North Pole-36 ("") was the 36th