The Yana River
(), is a river
, located between the Lena
to the west and the Indigirka
to the east.
It is 872 km in length. The area
of its basin
is 238,000 km², whilst its annual discharge totals approximately . Most of this discharge occurs in May and June as the ice on the river breaks up. The Yana freezes up on the surface in October and stays under the ice until late May - early June. In the Verkhoyansk
area, it stays frozen to the bottom for 70 to 110 days, and partly frozen for 220 days of the year.
The river begins at the confluence
of the rivers Sartang
. As the Yana flows into the Yana Bay
of the Laptev Sea
, it forms a huge river delta
(10,200 km²). Yarok
is a large flat island located east of the main mouths of the Yana.
There are approximately 40,000 lakes
in the Yana basin, including both alpine lakes formed from glaciation
in the Verkhoyansk Mountains
(lowlands were always too dry for glaciation) and overflow lakes on the marshy plains in the north of the basin. The whole Yana basin is under continuous permafrost
and most is larch
woodland grading to tundra
north of about 70°N, though trees
extend in suitable microhabitats right to the delta.
The principal tributaries
of the Yana are: Adycha
. Most of these tributaries are short rivers flowing from the high Verkhoyansk Mountains.
are the main ports on the Yana.
The Yana basin is the site of the... Read More