who is the ross ice shelf named after
Ross Ice Shelf The ice shelf is named after Captain Sir James Clark Ross, who discovered it on 28 January 1841. It was originally called The Barrier, with various adjectives including Great Ice Barrier, as it prevented sailing further south. Ross mapped the ice front eastward to 160Â°W. In 1947, the US Board on Geographic Names applied the name Ross Shelf Ice to this feature and published it in the original US Antarctic Gazetteer. In January 1953 the name was changed to Ross Ice Shelf; that name was published in 1956.[4][5]
Icebreaker Canada's largest and most powerful icebreaker, the 120-metre (390 ft) CCGS Louis S. St. Laurent, was delivered in 1969. Her original 3 steam turbine/9 generator/ 3 electric motor system produces 27,000*shaft horsepower. A multi-year mid-life refit project (1987–1993) saw the ship get a new bow, and a new propulsion system. The new power plant consists of 5 diesels/ 3 generators/ 3 electric motors giving about the same SHP. On 22 August 1994 Louis S. St-Laurent and USCGC Polar Sea became the first North American surface vessels to reach the North Pole. The vessel was originally scheduled to be decommissioned in 2000 however a refit extended the decommissioning date to 2017.