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Lake Profile


General Information

Country Canada
Latitude 52° 0' 0" (52.0000)
Longitude -98° 0' 0" (-98.0000)
River Basin Nelson-Saskatchewan


 Largest Lakes in the World by Area (LakeNet Explorer 2004)
 Largest Lakes of the World by Volume (LakeNet Explorer 2004)

Physical Characteristics

Description Winnipeg is one of the 20 largest lakes in the world by both area and volume. It is actually a relict of a huge glacial Lake Agaziz that from 12,000 to 8,000 years ago covered twice the present total area of all the Laurentian Great Lakes.
Volume 371.00 km3
Surface Area 24,500.00 km2
Depth Mean depth: 12.0 m
Maximum depth: 36.0 m
Residence Time 3.6 years
Origin Glacial
Type Fresh
Catchment Catchment size: 490,100.00 km2
Catchment/surface area ratio: 20:1


Economic Value
Major Cities

Watershed Management

Other Issues Nutrient pollution
Invasive Species
Lake Levels (water quantity)
Specific Contaminants Pesticides

Biodiversity Conservation

Designations WWF Freshwater Eco-Region - English-Winnipeg Lakes
WWF Conservation Status Priority II
Species of Concern
Biological Distinctiveness Continentally outstanding



Crop Explorer - Global Reservoir and Lake Elevation Monitoring
Crop Explorer - Lake Level Variations from TOPEX/POSEIDON and Jason-1 Altimetry for Lake Winnipeg
ILEC Database
Lake Winnipeg Research Consortium
Nelson River Basin map & information
Retrospective study of suspended sediment patterns on Lake Winnipeg using NOAA AVHRR satelite imagery
State of Lake Winnipeg Ecosystem: Food Web, Health and Management


11/28/2003 - Environmentalists protest road construction along Lake Winnipeg

Additional Data Sources

Abell, R. and D. Olson, E. Dinerstein, P. Hurley et al. 2000. Freshwater ecoregions of North America. Island Press. Washington, D.C.
Birkett, C., and I. Mason. 1995. A new global lakes database for remote sensing programme studying climatically sensitive large lakes. Journal of Great Lakes Research, 21 (3) 307-318.
International Lake Environment Committee, the United Nations Environment Program and Environment Agency, Government of Japan. 1997. World Lakes Database.

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