Information about Tributary

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A tributary (or confluent/affluent) is a stream or river which flows into a mainstem (or parent) river, and which does not flow directly into a sea. In orography, tributaries are ordered from those nearest to the source of the river to those nearest to the mouth of the river. A confluence is where two or more tributaries or rivers flow together.

The descriptive means terms right tributary and left tributary always apply from the perspective of looking downstream (in the direction the current is going), similarly to the river banks.

The opposite of a tributary is a distributary; a river branch that flows away from the main stream. A river and all its tributaries drain the watershed of the river.

The Strahler Stream Order examines the arrangement of tributaries in a hierarchy of first, second, third and higher orders, with the first order tributary being typically the least in size. For example, a second order tributary is comprised of two or more first order tributaries combining to form the second order stream.

See also

Confluence, in geography, describes the meeting of two or more bodies of water. It usually refers to the point where a tributary joins a more major river, called the mainstem, when that major river is also the highest order stream in the drainage basin.
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worldwide view.

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river is a natural waterway that transits water through a landscape from higher to lower elevations. It is an integral component of the water cycle. The water within a river is generally collected from precipitation through surface runoff, groundwater recharge (as seen at baseflow
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A mainstem is defined as the principal river within a given drainage basin, in the case where a number of tributaries discharge into a larger watercourse. Viewed in terms of the Strahler Stream Order system, the mainstem would be the highest order stream amongst the streams in a
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river is a natural waterway that transits water through a landscape from higher to lower elevations. It is an integral component of the water cycle. The water within a river is generally collected from precipitation through surface runoff, groundwater recharge (as seen at baseflow
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Orography is the average height of land, measured in geopotential meters, over a certain domain. In geoscientific models, such as general circulation models, orography defines the lower boundary (except where there is ocean, of course).
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Headstream is the origin of water flow that initiates the subject watercourse. It is the start of the river or stream.

The source of a river or stream may be a lake, a marsh, a spring, glacier, or a collection of headwaters.
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delta is a landform where the mouth of a river flows into an ocean, sea, desert, estuary, lake or another river. It builds up sediment outwards into the flat area which the river's flow encounters (as a deltaic deposit
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Confluence, in geography, describes the meeting of two or more bodies of water. It usually refers to the point where a tributary joins a more major river, called the mainstem, when that major river is also the highest order stream in the drainage basin.
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A current, in a river or stream, is the flow of water influenced by gravity as the water moves downhill to reduce its potential energy. The current varies spatially as well as temporally within the stream, dependent upon the flow volume of water, stream gradient, and channel
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stream bed is the channel bottom of a stream or river or creek; the physical confine of the normal water flow. The lateral confines (channel margins) during all but flood stage are known as the stream banks or river banks.
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distributary, or a distributary channel, is a stream that branches off and flows away from a main stream channel. They are a common feature of river deltas. The phenomenon is known as river bifurcation. The opposite of a distributary is a tributary.
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A drainage basin is a region of land where water from rain or snow melt drains downhill into a body of water, such as a river, lake, dam, estuary, wetland, sea or ocean. The drainage basin includes both the streams and rivers that convey the water as well as the land surfaces from
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Strahler Stream Order is a simple hydrology algorithm used to define stream size based on a hierarchy of its tributaries.

The streams range from one at the headwaters (which is a "1") to the most powerful which is the Amazon River which is a "12.
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hierarchy (in Greek: Ἱεραρχία, derived from ἱερόςhieros, 'sacred', and
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distributary, or a distributary channel, is a stream that branches off and flows away from a main stream channel. They are a common feature of river deltas. The phenomenon is known as river bifurcation. The opposite of a distributary is a tributary.
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