Lake Nettilling, Nunavut
Source: NASA
Published: November 16, 2007, 1:51 pm
Updated: July 29, 2012, 7:16 am
This article has been reviewed by the following Topic Editor:
Mark McGinley
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Physical Attributes
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Altitude: 30 m above sea level
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Surface Area: 5699 sq. km
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Mean Depth: 20 m
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Maximum Depth: 132 m
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Volume: 114 cu. km
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Nettilling Lake is the largest lake in the Canadian Arctic Archipelago and the tenth largest in Canada. It is located on south-central Baffin Island.
The Amadjuak River flows from the nearby Amadjuak and Mingo Lakes and entering on the southern shore of Nettilling Lake.
The lake is drained by the Koukdjuak River which travels through the Great Plain of the Koukdjuak into the Foxe Basin of the Arctic Ocean.
Nettilling Lake has a triangular shape and is comprised of two lake basins that can be divided by a theoretical line from Caribou Point to Magnetic Point.
The western region has a deep, regular basin with an absence of islands. The eastern area has an irregular basin with many islands and slightly warmer waters.
Characteristic of lakes that are close to glaciers, the northeastern basin has much suspended material. Within this single lake, there is a transition from clear, ultra-oligotrophic water in the western basin to murky water in the east. Transparency varies from 1.1 to 21.3 m in the lake. Thermocline formation does not take place and mixing of the water is possible even during the summer.
The western shoreline has many gravel ridges formed by ice-push that can cut pools of water off from the lake. Arctic char, threespine stickleback, and ninespine stickleback are the only species of fish that occur in Nettilling Lake.
Watershed
Watershed Precambrian rock borders the north, east and south shores of Nettilling Lake. The Great Plain of Koukdjuak, comprised of Ordovician sedimentary rock covered with glacial drift, is the main geological feature along the west side of the lake.
Source: NASA Visible Earth/Jacques Descloitres, MODIS Land Rapid Response Team. Image taken. July 6, 2001
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Citation
Biodiversity Institute of Ontario, Paul D. N. Hebert (Lead Author);Mark McGinley (Topic Editor) "Lake Nettilling, Nunavut". In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D.C.: Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth November 16, 2007; Last revised Date July 29, 2012; Retrieved May 20, 2013 <http://www.eoearth.org/article/Lake_Nettilling,_Nunavut>
The Authors
The Biodiversity Institute of Ontario (BIO) is an interdisciplinary research institute dedicated to improving the understanding of biodiversity at all scales, from the genetic to the macroecological. Based at the University of Guelph in Ontario, Canada, BIO is host to more than 30 university faculty and their research groups representing a wide range of biological expertise. BIO also includes specialized support staff and unique research and outreach capabilities designed to foster both academi ... (Full Bio)
After receiving his Ph.D. in genetics at Cambridge University in 1972, Paul Hebert took up a Rutherford Fellowship at the University of Sydney. He returned to Canada in 1976, accepting a position at the University of Windsor where he was a professor in Biological Sciences and Director of the Great Lakes Institute. He moved to the University of Guelph in 1990 as Chair of the Department of Zoology. He has been a visiting professor at the Australian National University, the Czech Academy of Scienc ... (Full Bio)
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Physical Attributes
-
Altitude: 30 m above sea level
-
Surface Area: 5699 sq. km
-
Mean Depth: 20 m
-
Maximum Depth: 132 m
-
Volume: 114 cu. km
|
Nettilling Lake is the largest lake in the Canadian Arctic Archipelago and the tenth largest in Canada. It is located on south-central Baffin Island.
The Amadjuak River flows from the nearby Amadjuak and Mingo Lakes and entering on the southern shore of Nettilling Lake.
The lake is drained by the Koukdjuak River which travels through the Great Plain of the Koukdjuak into the Foxe Basin of the Arctic Ocean.
Nettilling Lake has a triangular shape and is comprised of two lake basins that can be divided by a theoretical line from Caribou Point to Magnetic Point.
The western region has a deep, regular basin with an absence of islands. The eastern area has an irregular basin with many islands and slightly warmer waters.
Characteristic of lakes that are close to glaciers, the northeastern basin has much suspended material. Within this single lake, there is a transition from clear, ultra-oligotrophic water in the western basin to murky water in the east. Transparency varies from 1.1 to 21.3 m in the lake. Thermocline formation does not take place and mixing of the water is possible even during the summer.
The western shoreline has many gravel ridges formed by ice-push that can cut pools of water off from the lake. Arctic char, threespine stickleback, and ninespine stickleback are the only species of fish that occur in Nettilling Lake.
Watershed
Watershed Precambrian rock borders the north, east and south shores of Nettilling Lake. The Great Plain of Koukdjuak, comprised of Ordovician sedimentary rock covered with glacial drift, is the main geological feature along the west side of the lake.
Source: NASA Visible Earth/Jacques Descloitres, MODIS Land Rapid Response Team. Image taken. July 6, 2001
Are you absolutely sure you want to delete this article? This process cannot be undone and is permanent.
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