Big River (Banks Island)
| Big River | ||
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| Data | ||
| location | Banks Island , Northwest Territories ( Canada ) | |
| River system | Big River | |
| origin | nameless lake in the southeast of Banksinsel 71 ° 42 ′ 37 ″ N , 121 ° 1 ′ 4 ″ W |
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| Source height | approx. 285 m | |
| muzzle |
Beaufort Sea ( Arctic Ocean ) Coordinates: 72 ° 30 ′ 1 " N , 125 ° 14 ′ 11" W 72 ° 30 ′ 1 " N , 125 ° 14 ′ 11" W |
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| Mouth height | 0 m | |
| Height difference | approx. 285 m | |
| Bottom slope | approx. 1.2 ‰ | |
| length | approx. 230 km | |
| Catchment area | approx. 7160 km² | |
| Discharge A Eo : 3640 km² Location: 80 km above the mouth |
MQ 1976/1977 1979/1988 2008/2009 Mq 1976/1977 1979/1988 2008/2009 |
7.4 m³ / s 2 l / (s km²) |
| Left tributaries | Sungukpagaluk River, White Fox River, Egg River | |
| Bird sanctuary Banks Iceland Migratory Bird Sanctuary No. 1 | ||
The Big River (English for "large river") is an approx. 230 km long river in the south of Banks Island in the Northwest Territories belonging to Canada .
River course
The Big River has its origin in a 285 m high nameless lake in the southeast of the island, about 20 km from the southeast coast. It initially flows 100 km in a north-northwest direction. The Big River then gradually turns west. The Big River mostly has wide river loops along its entire course . The river is flanked by numerous oxbow lakes . In the lower reaches of the river the river forms several river arms that run within an approximately 800 m wide gravel bed. The Big River has three major tributaries that all flow into it from the left: The mouth of the Sungukpagaluk River is at km 58, that of the White Fox River at km 50 and that of the Egg River at km 28. The Big River finally reaches the west coast Banksinsel and flows into the Beaufort Sea , 65 km north of the southwest tip of the island. The Big River forms a 5 km wide alluvial cone at the mouth .
Hydrology
The mean discharge at the gauge about 80 km above the mouth is 7.4 m³ / s. In June the Big River has the highest monthly discharge with 69.6 m³ / s. The river is frozen from November to March, so there are no measured discharges for these months.
fauna
The lower 140 kilometers of the Big River are within the Banks Island Migratory Bird Sanctuary No. 1 . This is only accessible with the appropriate permission. At the confluence of the Egg River and the Big River in the southwest of Banks Island is one of the largest breeding colonies of the Lesser Snow Goose ( Anser caerulescens caerulescens ) with 479,500 birds in 1995.
Web links
- Big River at Natural Resources Canada
Individual evidence
- ^ A b Government of Canada: Historical Hydrometric Data Search Results: Station 10TA001
- ↑ a b c Banks Island Migratory Bird Sanctuary No. 1 . Government of Canada. Retrieved November 6, 2018.