| 词条 | Ice River Spring |
| 释义 |
The Ice River Spring on Ellesmere Island, in Nunavut, Canada, is a high discharge perennial spring. As of 2014, it is the highest latitude perennial spring known. The spring is located at {{convert|300|m|abbr=on}} above sea level, on the south-facing slope of an {{convert|800|m|abbr=on}} mountain. The spring's discharge has carved a gully, and flows to the Ice River.[1] The spring was originally discovered in 2009, and observed to gush forth all year round. Analysis of the spring water, shows that it originated from the surface, and circulated deep into the Earth before returning through the cryosphere. The spring flows year-round, even in the middle of winter when surface air temperatures reach {{convert|-50|C}}. The gully it carves out is reminiscent of gullies on Mars.[2] The average annual air temperatures in the region is {{Convert|-19.7|C}}, while the spring's water's average is {{convert|9|C}}. The spring discharges {{convert|520|L/s|abbr=on|lk=in}}, even though it is located in an area with permafrost over {{convert|400|m|abbr=on}} thick.[3] Further reading
References1. ^{{cite news |url= http://www.marsdaily.com/reports/Discovery_of_Earths_Northernmost_Perennial_Spring_999.html |title= Discovery of Earth's Northernmost Perennial Spring |publisher= SpaceDaily |date= 17 June 2014 }} 2. ^{{cite news |url= https://www.sciencedaily.com/releases/2014/06/140616204540.htm |title= Discovery of Earth's northernmost perennial spring |date= 16 June 2014 |publisher= Science Daily }} 3. ^{{cite web |url= http://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fulle.web&search1=R=293797 |title= GEOSCAN 293797 |author1=Grasby, S E |author2=Proemse, B |author3=Beauchamp, B |work= Deep groundwater circulation through the High Arctic cryosphere forms Mars-like gullies |accessdate= 2014-06-18 }} External links
4 : Ellesmere Island|Springs of Canada|Landforms of Qikiqtaaluk Region|Landforms of Nunavut |
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