The Vasyugan ( Russian : Васюга́н ) is a river in the southern West Siberian Plain of Russia . It is a tributary of the Ob on the left side, and its course from its source in the Vasyugan Swamp is entirely within the Kargasok district of Tomsk Oblast .
6-520: The river is 1,082 kilometres (672 mi) long and is navigable upriver for 886 kilometres (551 mi) from the mouth . The Vasyugan drains a basin of 61,800 square kilometres (23,900 sq mi). Average annual runoff: 345 m/c, 10.9 km/year. Tributaries: Municipalities (downstream from source): Novy Vasyugan , Aypolovo, Novy Tevriz , Sredny Vasyugan , Staraya Beryozovka, Ust-Chizhapka , Naunak, Bolshaya Griva, Staroyugino, Novoyugino, Bondarka. This Tomsk Oblast location article
12-462: Is a stub . You can help Misplaced Pages by expanding it . This article related to a river in Siberia is a stub . You can help Misplaced Pages by expanding it . River mouth A river mouth is where a river flows into a larger body of water , such as another river, a lake / reservoir , a bay / gulf , a sea , or an ocean . At the river mouth, sediments are often deposited due to the slowing of
18-451: The current, reducing the carrying capacity of the water. The water from a river can enter the receiving body in a variety of different ways. The motion of a river is influenced by the relative density of the river compared to the receiving water, the rotation of the Earth, and any ambient motion in the receiving water, such as tides or seiches . If the river water has a higher density than
24-454: The mouth of a river, the change in flow conditions can cause the river to drop any sediment it is carrying. This sediment deposition can generate a variety of landforms , such as deltas , sand bars , spits , and tie channels. Landforms at the river mouth drastically alter the geomorphology and ecosystem. Along coasts, sand bars and similar landforms act as barriers, sheltering sensitive ecosystems that are enriched by nutrients deposited from
30-460: The river. However, the damming of rivers can starve the river of sand and nutrients, creating a deficit at the river's mouth. As river mouths are the site of large-scale sediment deposition and allow for easy travel and ports, many towns and cities are founded there. Many places in the United Kingdom take their names from their positions at the mouths of rivers, such as Plymouth (i.e. mouth of
36-470: The surface of the receiving water, the river water will plunge below the surface. The river water will then either form an underflow or an interflow within the lake. However, if the river water is lighter than the receiving water, as is typically the case when fresh river water flows into the sea, the river water will float along the surface of the receiving water as an overflow. Alongside these advective transports, inflowing water will also diffuse . At
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