| Source1 location | Verkhoyansk Range |
|---|---|
| Source1 coordinates | 64°26′52″N 134°8′3″E |
| Source1 elevation | 1,620 m (5,310 ft) |
| Mouth | Adycha |
| Mouth coordinates | 66°42′21″N 136°31′33″E |
| Mouth elevation | 295 m (968 ft) |
| Federal subject | Yakutia, Russia |
| Length | 566 km (352 mi) |
| Discharge1 avg | 61.3 m3/s (2,160 cu ft/s) |
The Nelgese (Russian: Нельгесе; sah: Нэльгэһэ, Nelgehe) is a river in the Republic of Sakha in Russia. It is a left hand tributary of the Adycha, of the Yana basin. It is 566 kilometres (352 mi) long, with a drainage basin of 15,200 square kilometres (5,900 sq mi).[1]
The river flows across a desolate area of severe climate, with continuous permafrost.[2]
Course
The Nelgese is the longest tributary of the Adycha. It begins between two high ranges of the Verkhoyansk Range, running approximately from north to south to the west of the Khunkhadin Range. It heads roughly north across the Yana Plateau of the Yana-Oymyakon Highlands in a wide, swampy area dotted with ancient lakes. Then it turns northeast between the Nelgesin Range and the Tirekhtyakh Range, flowing through a narrow valley before it joins the Adycha 78 km downstream from the mouth of the Derbeke and 13 km upstream from the mouth of the Charky.[3][4]
The Nelgese has many tributaries. The main ones are the Sordong and the Kordekan; the latter is the only one exceeding 100 km (62 mi) in length. The river freezes in late September or early October and is under thick ice until the end of May.
Hydrology
Average monthly flow of the Nelgese based on data collected between 1967 and 1997.[5]
See also
References
- ^ Russian State Water Register - Nelgese (Нельгесе)
- ^ Water - Nelgese
- ^
- ^ Nelgese — Great Soviet Encyclopedia in 30 vols. / Ch. ed. A.M. Prokhorov - 3rd ed. - M, 1969-1978.
- ^ Statistics on the R-ArcticNET website (in Russian)