Alaseja
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Alaseja Alazaya |
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 Alaseja catchment area |
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| Data | ||
| Water code | RU : 18060000112117700071351 | |
| location | Sakha Republic ( Russia ) | |
| River system | Alaseja | |
| Confluence of |
Nelkan and Kadylchan on the Alaseja Plateau 67 ° 57 ′ 41 ″ N , 148 ° 16 ′ 2 ″ E |
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| muzzle | east of the Indigirka Delta in the East Siberian Sea Coordinates: 70 ° 51 ′ 29 ″ N , 153 ° 41 ′ 22 ″ E 70 ° 51 ′ 29 ″ N , 153 ° 41 ′ 22 ″ E |
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| Mouth height |
0 m
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| length | 1520 km | |
| Catchment area | 64,700 km² | |
| Discharge at the Argachtach A Eo gauge : 17,700 km² Location: 825 km above the mouth |
MQ 1962/1994 Mq 1962/1994 |
32 m³ / s 1.8 l / (s km²) |
| Discharge at the Andrjuschkino A Eo gauge : 29,000 km² Location: 521 km above the mouth |
MQ 1978/1993 Mq 1978/1993 |
45.9 m³ / s 1.6 l / (s km²) |
| Discharge at the gauge near the mouth |
MQ |
320 m³ / s |
| Left tributaries | Rossocha | |
| Communities | Argachtach , Andrjuschkino | |
The Alaseja ( Russian Алазея ) is a 1520 km long river or stream of the Kolyma lowlands in eastern Siberia and northeastern Russia ( Asia ).
course
The Alaseja arises in the northern foothills of the Alaseja plateau (up to 954 m ), which protrudes from the southern part of the East Siberian lowlands , through the confluence of the Nelkan flowing from the southwest and the Kadylchan (east) coming from the southeast . It runs very winding between the river areas of Indigirka in the west and Kolyma in the east.
Initially, the Alaseja flows northeast to flow into the Kolyma Lowlands , the eastern part of the East Siberian Lowlands. In it it runs via Argachtach to Andrjuschkino , and then swings north.
Eventually the Alaseja reaches its small estuary , which is about 200 km east of the Indigirka Delta. After flowing through the delta, which essentially consists of two main arms, it flows into the East Siberian Sea , part of the Arctic Ocean ; Immediately before its mouth, the Logashkino trading post, which was abandoned in 1998, was directly east of the river .
Landscape, hydrography and ice drift
The landscape on the Alaseja is dominated by boreal coniferous forest (taiga), which merge towards the coast into the forest tundra and tundra . In the last-mentioned, northernmost inhabited regions of the world, tall plants such as trees cannot develop because of the permafrost and the short vegetation period, where lichens , mosses , shrubs and ferns predominate. The relatively small catchment area (64,700 km²) of the Alaseja in comparison to the length of the river has extensive swamps and thousands of small and large lakes . The river is covered by ice from late September or early October to late May or early June . When the snow melts and the permafrost thaws in summer, severe flooding occurs along the river .
Individual evidence
- ↑ a b c d Alaseja in the State Water Register of the Russian Federation (Russian)
- ↑ a b c Article Alaseja in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ Article Argachtach in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ^ Article Andryushkino in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ Topographic map ( Memento of the original from August 20, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Alaseja (Алазея) in the Kolyma lowlands (1: 1,000,000, p. R-55,56, edition 1988; see right)
