3.17 Northern Ontario drainage region 3.17 Northern Ontario drainage region

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The Northern Ontario drainage region extends across 691,809 km² of Manitoba and Ontario and drains into Hudson Bay. In 2011, its landscape was almost entirely natural and semi-natural area—arable land, natural land for pasture and built-up areas combined accounted for less than 1% of the total land area.
The population was 134,355 in 2011, with a population density of 0.2 persons/km².
Surface freshwater intake from thermal-electric production, manufacturing, drinking water plants and mining was 106.0 million m³ in 2013.
The long-term^{Note 1} average annual water yield was 199.2 km³. The water yield per unit area was 0.29 m³/m², compared to 0.35 m³/m² at the Canada level. Data on the monthly yield and trends over time are not available.

Map 3.3.17
Land use and water yield for the Northern Ontario drainage region

Chart 3.17
Land cover and land use, Northern Ontario drainage region, 2011

Table 3.17.1
Selected land cover and land use statistics, Northern Ontario drainage region, 2011

Table 3.17.2
Selected statistics on water supply and demand, Northern Ontario drainage region

Table 3.17.3
Selected indicators of pressures on water quality, Northern Ontario drainage region

Notes

Footnote 1.

The water yield estimates are 42-year annual averages (1971 to 2013), with the exception of estimates for drainage region 1, which is based on 41 years of data (1971 to 2012); drainage regions 5, 7, 17 and 18 and portions of 8, 16 and 25 (Labrador), which are based on 20 years of data (1976 to 1995); and portions of drainage region 8 and 16, which are based on a 23-year average (1972 to 1994) for the Arctic Archipelago (Spence and Burke, 2008). These different time periods are used due to lower availability of hydrometric data in the North. As well, because there are fewer stations in northern Canada, only the long-term average annual water yield is publishable for these regions—data quality was insufficient to derive the monthly water yield or the change over time.

Return to note 1 referrer

Date modified:: 2017-03-21

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3.17 Northern Ontario drainage region 3.17 Northern Ontario drainage region

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