Byrd's Later Antarctic Expeditions
Byrd undertook four more expeditions to Antarctica from 1933–35, 1939–40, 1946–47 and 1955–56.
As a senior officer in the United States Navy, Byrd, performed national defense service during World War II (1941–45), mostly as a consultant to the USN high commanders.
On his second expedition, in 1934, Byrd spent five winter months alone operating a meteorological station, Advance Base, from which he narrowly escaped with his life after suffering carbon monoxide poisoning from a poorly ventilated stove. Unusual radio transmissions from Byrd finally began to alarm the men at the base camp, who then attempted to go to Advance Base. The first two trips were failures due to darkness, snow, and mechanical troubles. Finally, Thomas Poulter, E.J. Demas, and Amory Waite arrived at Advanced Base, where they found Byrd in poor physical health. The men remained at Advanced Base until 12 October when an airplane from the base camp picked up Dr. Poulter and Byrd. The rest of the men returned to base camp with the tractor. This expedition is described by Byrd in his autobiography Alone. It is also commemorated in a U.S. postage stamp issued at the time, and a considerable amount of mail using it was sent from Byrd's base at Little America, which was powered by a Jacobs Wind 2.5 kW. Later a souvenir sheet was also issued.
In late 1938, Byrd visited Hamburg and was invited to participate in the 1938/1939 German "Neuschwabenland" Antarctic Expedition, but declined.
Byrd's third expedition was his first one on which he had the official backing of the U.S. government. The project included extensive studies of geology, biology, meteorology and exploration. Within a few months, in March 1940, Byrd was recalled to active duty in the Office of the Chief of Naval Operations. The expedition continued in Antarctica without him. From 1942 to 1945 he headed important missions to the Pacific, including surveys of remote islands for airfields. On one assignment he visited the fighting front in Europe. He was repeatedly cited for meritorious service and was present at the Japanese surrender.
The fourth culminating expedition, Operation Highjump, is the largest Antarctic expedition to date. In 1946, US Navy Secretary James Forrestal assembled a huge amphibious naval force for an Antarctic Expedition expected to last six to eight months. Besides the flagship USS Mount Olympus and the aircraft carrier USS Philippine Sea, there were thirteen US Navy support ships, six helicopters, six flying boats, two seaplane tenders and fifteen other aircraft. The total number of personnel involved was over 4,000. The armada arrived in the Ross Sea on 31 December 1946, and made aerial explorations of an area half the size of the United States, recording ten new mountain ranges. The major area covered was the eastern coastline of Antarctica from 150 degrees east to the Greenwich meridian.
As part of the multinational collaboration for the International Geophysical Year (IGY) 1957–58, Byrd commanded the U.S. Navy Operation Deep Freeze I in 1955–56, which established permanent Antarctic bases at McMurdo Sound, the Bay of Whales, and the South Pole.
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