Jana (Laptev Lake)
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Jana Яна |
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 The two rivers named Jana in the Russian Far East |
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| Data | ||
| Water code | RU : 18040100112117700006264 | |
| location | Sakha Republic (Yakutia) ( Russia ) | |
| River system | Jana | |
| origin | The confluence of the Dulgalach and Sartang rivers above Verkhoyansk 67 ° 27 ′ 48 ″ N , 133 ° 15 ′ 2 ″ E |
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| muzzle | to Jana Bay of the Laptev Sea Coordinates: 71 ° 32 ′ 14 " N , 136 ° 39 ′ 12" E 71 ° 32 ′ 14 " N , 136 ° 39 ′ 12" E
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| length | 872 km | |
| Catchment area | 238,000 km² | |
| Discharge at the Ubileinaya A Eo gauge : 224,000 km² Location: 157 km above the estuary |
MQ 1972/1999 Mq 1972/1999 |
1020 m³ / s 4.6 l / (s km²) |
| Left tributaries | Bytantai | |
| Right tributaries | Adytscha , Oldscho | |
| Small towns | Verkhoyansk , Batagai , Ust-Kuiga , Nizhnejansk | |
 The Jana catchment area with tributaries |
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The Jana ( Russian Яна , Yakut Дьааҥы Džaangy [ dʒaːŋɯ ]) is a 872 km long river , each in the northeast of the Sakha Republic (Yakutia) and the Asian part of Russia and in the north of the Far East Federal District . With its source river Sartang, it is 1,492 km long.
course
The river arises between the Verkhoyansk Mountains in the west and the Tscherski Mountains in the east just above Verkhoyansk through the union of Dulgalach and Sartang . From Batagai, the Jana flows northwards along the northwestern edge of the Tscherski Mountains and takes in the Adytscha and Bytantai rivers . In Jana Indigirka lowlands (Western part of the East Siberian lowlands ) it forms from about Kasatschje a 10,000 km² delta , then in with Nizhneyansk the northernmost settlement lies in the basin. After flowing through it, the Jana reaches the Laptev Sea , a marginal sea of the Arctic Ocean .
Landscape image
The landscape on the Jana is dominated by the boreal coniferous forest (taiga), which merges into the forest tundra and tundra towards the coast . In the last mentioned, northernmost inhabited regions of the world , no tall plants such as trees can develop because of the permafrost soil and the low water content in the soil, where lichens , mosses , bushes and ferns predominate.
population
The latest studies show that the region around the river was populated early on. Today's researchers, after analyzing the DNA of tooth and bone finds, believe that great migrations took place from this region that led to North America and back. DNA matches can be found with Inuit and Greenlanders .
Individual evidence
- ↑ a b Article Jana in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ a b c Jana in the State Water Directory of the Russian Federation (Russian)
- ↑ Jana at the Ubileinaya gauge - hydrographic data at R-ArcticNET
- ↑ Teeth lead to the discovery of a population group. A popular representation at archeology-online; scientific: Martin Sikora et al., The population history of northeastern Siberia since the Pleistocene. Nature , June 5, 2019 doi : 10.1038 / s41586-019-1279-z