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In physical geography and hydrology, a channel is a landform on which a relatively narrow body of water is situated, such as a river, river delta or strait. While channel typically refers to a natural formation, the cognate term canal denotes a similar artificial structure. Channels are important for the functionality of ports and other bodies ...
Channel pattern. Channel patterns are found in rivers, streams, and other bodies of water that transport water from one place to another. Systems of branching river channels dissect most of the sub-aerial landscape, each in a valley proportioned to its size. Whether formed by chance or necessity, by headward erosion or downslope convergence ...
Distributary. A distributary, or a distributary channel is a stream channel that branches off and flows away from a main stream channel. It is the opposite of a tributary, a stream that flows towards and into another stream or river. Distributaries are a result of river bifurcation and are often found where a river approaches a lake or an ocean ...
t. e. A strait is a water body connecting two seas or two water basins. While the landform generally constricts the flow, the surface water still flows, for the most part, at the same elevation on both sides and through the strait in both directions. In some straits there may be a dominant directional current through the strait.
Low gradient channels of rivers and streams can be divided into braided rivers, wandering rivers, single thread sinuous rivers (meandering), and anastomosing rivers. The channel type developed depends on stream gradient, riparian vegetation and sediment supply. Braided rivers tend to occur on steeper gradients where there is a large supply of ...
Chatham Strait – between Chichagof Island and Admiralty Island, Alaska. Chios Strait – between Turkey and the Greek island Chios. Clarence Strait – between Prince of Wales Island and mainland Alaska. Coco Channel – between the Burmese Coco Islands and the Indian North Andaman Island. Colvos Passage – Puget Sound.
Sound – A long, relatively wide body of water, connecting two larger bodies of water. Spit – Coastal bar or beach landform deposited by longshore drift. Strait – Naturally formed, narrow, typically navigable waterway that connects two larger bodies of water. Strandflat – Type of landform found in high-latitude areas.
A bar in a river is an elevated region of sediment (such as sand or gravel) that has been deposited by the flow. Types of bars include mid-channel bars (also called braid bars and common in braided rivers), point bars (common in meandering rivers), and mouth bars (common in river deltas). The locations of bars are determined by the geometry of ...