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Prince Gustav Channel
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Prince Gustav Channel
The Prince Gustav Channel (63°50′S 58°15′W / 63.833°S 58.250°W) is a strait about 80 nautical miles (150 km; 92 mi) long and from 4 to 15 nautical miles (7.4 to 27.8 km; 4.6 to 17.3 mi) wide, separating James Ross Island and Vega Island from the Trinity Peninsula, Antarctica.
Prince Gustav Channel is in Graham Land on the southeast coast of the Trinity Peninsula, which forms the tip of the Antarctic Peninsula. It separates the James Ross Island group to the east from the Trinity Peninsula and Detroit Plateau to the west. It extends north from the Weddell Sea and turns east to the Erebus and Terror Gulf. The southern entrance is between Cape Longing on the Longing Peninsula and Cape Foster on James Ross Island. Further north it extends past Röhss Bay and other smaller bays on James Ross Island, and past the Cugnot Ice Piedmont on the mainland. It passes Herbert Sound, which leads south between James Ross Island and Vega Island, passes south of the Eagle Island group, and opens onto the Erebus and Terror Gulf between Cape Gordon on Vega Island and Cape Green on the Tabarin Peninsula.
The Prince Gustav Channel was discovered in October 1903 by the Swedish Antarctic Expedition (SwedAE) under Otto Nordenskjöld, who named it for Crown Prince Gustav of Sweden (later King Gustav V) of Sweden.
Prince Gustav Ice Shelf 64°15'S, 58°30'W An ice shelf of more than 15 mi extent occupying the S part of Prince Gustav Channel, including Rohss Bay, James Ross Island. Named by the UK Antarctic Place-Names Committee (UK-APC) in 1990 in association with the channel.
On 27 February 1995, the British Antarctic Survey (BAS) reported that the ice shelf formerly blocking the channel had disintegrated. This ice shelf had spanned approximately 700 square kilometres (270 sq mi) prior to its disintegration. In the area previously covered by the shelf, the channel's water depth is between 600 and 800 metres (2,000 and 2,600 ft). Between February and March 2000, scientists collected sediment cores 5 to 6 m in length from the ocean floor.[citation needed] Carbon dating of organic material found in the sediment layers suggested that for a period between 2,000 and 5,000 years ago, much of the channel was seasonally open water. While icebergs were able to navigate the channel, ice rafted debris was deposited within the sediment.
Prince Gustav Ice Shelf retreated in the mid-Holocene period 5000 to 2000 years before present, [this] "corresponds to regional climate warming deduced from other paleoenvironmental records." It appears that before and after this period, the channel remained closed. The period when the channel was open coincides with a period of local warming supported by data gathered from land-based studies of lake sediments and ancient, abandoned penguin rookeries. With the return of colder conditions about 1900 years ago, the Prince Gustav Ice Shelf reformed until its recent retreat and collapse.
The San Nicolás Refuge (Spanish: Refugio San Nicolás, 63°39′20″S 57°49′46″W / 63.655666°S 57.829346°W) is an Argentine Antarctic refuge located on the north coast of the entrance to the Prince Gustav Channel, on the Trinity Peninsula, at the northern tip of the Antarctic Peninsula. The refuge is administered by the Argentine Army and was inaugurated on 12 September 1963. It is one of the 18 shelters that are under the responsibility of the Esperanza Base, which is responsible for the maintenance and the care. The Argentine Antarctic Program reports that the refuge is inactive.
64°03′S 58°50′W / 64.050°S 58.833°W. A narrow straight glacier, 10 nautical miles (19 km; 12 mi) long, flowing eastward from Detroit Plateau into Prince Gustav Channel 5 nautical miles (9.3 km; 5.8 mi) south of Alectoria Island. Mapped from surveys by the Falkland Islands Dependencies Survey (FIDS) (1960–61). Named by the UK Antarctic Place-Names Committee (UK-APC) for Bramah J. Diplock, British engineer who made considerable advances in the design of chain-track tractors (1885-1913).
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Prince Gustav Channel
The Prince Gustav Channel (63°50′S 58°15′W / 63.833°S 58.250°W) is a strait about 80 nautical miles (150 km; 92 mi) long and from 4 to 15 nautical miles (7.4 to 27.8 km; 4.6 to 17.3 mi) wide, separating James Ross Island and Vega Island from the Trinity Peninsula, Antarctica.
Prince Gustav Channel is in Graham Land on the southeast coast of the Trinity Peninsula, which forms the tip of the Antarctic Peninsula. It separates the James Ross Island group to the east from the Trinity Peninsula and Detroit Plateau to the west. It extends north from the Weddell Sea and turns east to the Erebus and Terror Gulf. The southern entrance is between Cape Longing on the Longing Peninsula and Cape Foster on James Ross Island. Further north it extends past Röhss Bay and other smaller bays on James Ross Island, and past the Cugnot Ice Piedmont on the mainland. It passes Herbert Sound, which leads south between James Ross Island and Vega Island, passes south of the Eagle Island group, and opens onto the Erebus and Terror Gulf between Cape Gordon on Vega Island and Cape Green on the Tabarin Peninsula.
The Prince Gustav Channel was discovered in October 1903 by the Swedish Antarctic Expedition (SwedAE) under Otto Nordenskjöld, who named it for Crown Prince Gustav of Sweden (later King Gustav V) of Sweden.
Prince Gustav Ice Shelf 64°15'S, 58°30'W An ice shelf of more than 15 mi extent occupying the S part of Prince Gustav Channel, including Rohss Bay, James Ross Island. Named by the UK Antarctic Place-Names Committee (UK-APC) in 1990 in association with the channel.
On 27 February 1995, the British Antarctic Survey (BAS) reported that the ice shelf formerly blocking the channel had disintegrated. This ice shelf had spanned approximately 700 square kilometres (270 sq mi) prior to its disintegration. In the area previously covered by the shelf, the channel's water depth is between 600 and 800 metres (2,000 and 2,600 ft). Between February and March 2000, scientists collected sediment cores 5 to 6 m in length from the ocean floor.[citation needed] Carbon dating of organic material found in the sediment layers suggested that for a period between 2,000 and 5,000 years ago, much of the channel was seasonally open water. While icebergs were able to navigate the channel, ice rafted debris was deposited within the sediment.
Prince Gustav Ice Shelf retreated in the mid-Holocene period 5000 to 2000 years before present, [this] "corresponds to regional climate warming deduced from other paleoenvironmental records." It appears that before and after this period, the channel remained closed. The period when the channel was open coincides with a period of local warming supported by data gathered from land-based studies of lake sediments and ancient, abandoned penguin rookeries. With the return of colder conditions about 1900 years ago, the Prince Gustav Ice Shelf reformed until its recent retreat and collapse.
The San Nicolás Refuge (Spanish: Refugio San Nicolás, 63°39′20″S 57°49′46″W / 63.655666°S 57.829346°W) is an Argentine Antarctic refuge located on the north coast of the entrance to the Prince Gustav Channel, on the Trinity Peninsula, at the northern tip of the Antarctic Peninsula. The refuge is administered by the Argentine Army and was inaugurated on 12 September 1963. It is one of the 18 shelters that are under the responsibility of the Esperanza Base, which is responsible for the maintenance and the care. The Argentine Antarctic Program reports that the refuge is inactive.
64°03′S 58°50′W / 64.050°S 58.833°W. A narrow straight glacier, 10 nautical miles (19 km; 12 mi) long, flowing eastward from Detroit Plateau into Prince Gustav Channel 5 nautical miles (9.3 km; 5.8 mi) south of Alectoria Island. Mapped from surveys by the Falkland Islands Dependencies Survey (FIDS) (1960–61). Named by the UK Antarctic Place-Names Committee (UK-APC) for Bramah J. Diplock, British engineer who made considerable advances in the design of chain-track tractors (1885-1913).
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