Selennyakh River

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Location of Selennjach in the catchment area of the Indigirka

Template: Infobox River / Obsolete

The Selennjach (Russian Селеннях, Yakut Силээннээх, Sileenneech ) is a 796 km long left tributary of the Indigirka in Siberia, in the Asian part of Russia.

Course

The river originates in about 420 m in the northeast of the Republic of Sakha (Yakutia ) by the confluence of Chargy - Sala ( from right) and Njamnja (also Njamnjach, from left). The 49 km long Chargy - Sala and the 22 km long Njamnja rise to about 800 m altitude in the north of the northern tip of the Tscherskigebirges extending central mountainous country in the field of Kuigarückens ( Kuiginski krjasch ) and the Irgitschen Crest ( Irgitschinski Chrebet ).

The Selennjach first flows in a southeasterly direction through the Moma Selennjach Valley, which is limited in this area on its west side by the foothills Tscherskigebirges ( Burkat and Chadarannja Crest), to the east by the Selennjachgebirge with the Tommot massif. Both mountain ranges are there over 2000 m high. Throughout the upper reaches of the Selennjach flows through the territory of the Ulus Ust- Jansk; there is also the only town on the river, the village ( selo ) Sajylyk (also called Yakut after the river and after its designee, managed by Sajylyk from county ( Nasleg ) Sileennech to continue in the form Siljannjach ).

In the middle reaches of the Selennjach used in a wide arc to the northeast and then flows in an easterly direction mainly the Ulus Abyj. North on Andrei - Tas - back ( Krjasch Andrei - Tas) over the river reaches the Abyjtiefland ( Abyjskaja nismennost ). In this lakes in the area of Selennjach finally ends at 29 m height in the Indigirka, 20 km downstream from the left Indigirka shore village Kuberganja and about 90 km as the crow southwest of the Belaya Gora Ulusverwaltungssitzes.

The most important tributaries of the Selennjach are Tschubukulach (length 89 km), Agdanschja (37 km, with the longest source river Nagondschja 79 km) and Tommot (98 km) from the left and Tschamet (99 km), Ojosordoch (84 km), Bjorjoljoch (154 km ) and Buor - Jurjach (116 km) from the right.

Hydrology

The Selennjach whose catchment area covers approximately 30,800 km ², freezes up until the end of May is usually the beginning of October. His discharge at the mouth is on average 180 m³ / s