Voyage to the Bottom of the Sea named for the radio message he sent to the Chief of Naval Operations to announce that "Nautilus" had reached the pole. His second book about these missions, "The Ice Diaries: The Untold Story of the Cold War's Most Daring Mission" (with Don Keith), was completed shortly before Anderson's death. This second book includes many previously classified details. On March 17, 1959, the nuclear submarine , under the command of Commander (later Vice Admiral) James F. Calvert, became the first submarine to surface at the North Pole. While at the Pole, her crew scattered the ashes of Arctic explorer Sir Hubert
Hans Tausen Ice Cap Hans Tausen Ice Cap Hans Tausen Ice Cap () is an ice cap in northern Greenland. Ice cores show it is around 3500–4000 years old. It formed since the Holocene climatic optimum of 6000-8000 BP. The ice cap is about 100 km from north to south and 80 km from east to west and sits on a 1300 m high plateau. The Hans Tausen Ice Cap is the source of many glaciers, including Ymer Glacier, Lur Glacier and the Tjalfe Glacier. It is a well studied ice cap, and is important to understanding the last Climatic Optimum. (Holocene climatic optimum)