Tanquary Fiord

Tanquary Fiord
Aerial view of Tanquary Fiord with Tanquary Fiord Airport on the right
The north-east part of Tanquary Fiord with Tanquary Fiord Airport on the right
Tanquary Fiord is located in Nunavut
Tanquary Fiord
Tanquary Fiord
Location
LocationEllesmere Island, Nunavut
Coordinates81°05′N 78°45′W / 81.083°N 78.750°W / 81.083; -78.750
Ocean/sea sourcesNansen Sound via Greely Fiord
Basin countriesCanada

Tanquary Fiord[1] is a fjord on the north coast of the Arctic Archipelago's Ellesmere Island, Nunavut, Canada. It is located in the Quttinirpaaq National Park and extends 48 km (30 mi) in a north-westerly direction from Greely Fiord.

History

Radiocarbon dating methods suggest that between 10,000 and 4,100 BP, deglaciation occurred, followed by a period of glacial readvance and the formation of ice shelves until 2,400 BP. Until 1,400 BP, a period of glacial retreat occurred, and since then glacial readvance and nearby ice rises have marked the area.[2]

Radiocarbon analysis of charcoal undertaken by the Geological Survey of Canada has shown that Inuit were present at Tanquary Fiord around 1070 BP at the latest.[3]

Geography

The head of the Tanquary Fiord is the convergence point of four river valleys, three of which end in a floodplain and one in a river delta. Carbon dating findings show that the fjord was free of glacial ice approximately 6,500 years ago.[4] In the past 40 years, the terminal points of side glaciers have receded.[5]

Tanquary Fiord has 65 frost-free days per year (enough to grow lettuce), which is remarkable for its latitude. Summer temperatures of 18 °C (64 °F) have been recorded.[6]

Human activity

In 1963, the Defence Research Board began 'Operation Tanquary' in the area, with a focus on oceanography. The operation concluded in 1972.[7] As the fjord is in a remote location, there is little human habitation. A Warden Station is staffed by Parks Canada during the summer months,[8] and Tanquary Fiord Airport is located nearby. It is possible to reach the area via charter aircraft, or increasingly via icebreaker cruise ships.[9] In 1947, a meteorological station was installed at Eureka, about 175 km (109 mi) southwest of the fiord.[10] The Fiord was named by Explorer Donald Baxter MacMillan in honor of his friend and fellow explorer Maurice Cole Tanquary.[11] See also the Crocker Land Expedition.

References

  1. ^ "Tanquary Fiord". Geographical Names Data Base. Natural Resources Canada. Retrieved 2020-06-15.
  2. ^ Lyons, J. & Mielke, J. (1973). "Holocene History of a Portion of Northernmost Ellesmere Island" (PDF). University of Calgary. Retrieved July 20, 2010.
  3. ^ Hattersley-Smith, G. "An Archaeological Site on the North Coast of Ellesmere Island" (PDF). University of Calgary. Retrieved July 20, 2010.
  4. ^ Hattersley-Smith, G. & Long, A. "Postglacial Uplift at Tanquary Fiord, Northern Ellesmere Island, Northwest Territories" (PDF). University of Calgary. Retrieved July 20, 2010.
  5. ^ Hattersley-Smith, G. (1968). "Glacial features of Tanquary Fiord and adjoining areas of northern Ellesmere Island, N.W.T." Defence Research Telecommunications Establishment Ottawa (Ontario). Archived from the original on March 12, 2012. Retrieved July 20, 2010.
  6. ^ Serreze, Mark; Barry, Roger Graham (2005). The Arctic climate system. Cambridge: Cambridge University Press. p. 219. ISBN 978-0-521-81418-8. Retrieved July 20, 2010.
  7. ^ van Steenburgh, W. "Canada" (PDF). University of Calgary. Retrieved July 20, 2010.
  8. ^ "Quttinirpaaq National Park of Canada: Hours of Operation". Parks Canada. 2009. Retrieved July 20, 2010.
  9. ^ "Quttinirpaaq National Park of Canada: How to Get There". Parks Canada. 2009. Retrieved July 20, 2010.
  10. ^ Mills, William (2003). Exploring polar frontiers: a historical encyclopedia. Santa Barbara: ABC-CLIO. p. 211. ISBN 978-1-57607-422-0. Retrieved July 20, 2010.
  11. ^ MacMillan, Donald, Four Years in the White North, Harper Brothers Publishers, 1918, pg. 353.

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