BRAIDED CHANNEL Meaning and
Definition
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A braided channel refers to a natural or human-made watercourse, typically a river or stream, characterized by numerous interconnected and intertwining smaller channels. It features a complex network of interlacing streams that split and rejoin, resembling strands of a braid or plait. These smaller channels, also known as distributaries, vary in width, depth, and flow velocity, constantly shifting and rearranging their paths over time.
The formation of a braided channel is typically associated with high sediment loads, steep topography, and high-energy water flow. It commonly occurs in regions with extensive sediment supply, such as mountainous areas or glacial environments. The sediments carried by the river are deposited in bars or islands within the channel, leading to its subdivision into multiple branches. This braiding behavior creates a highly dynamic and ever-changing system, with channels appearing, disappearing, and shifting course frequently.
Braided channels have distinctive features that differentiate them from other river systems. They often exhibit wide floodplains, characterized by numerous gravel bars and islands. The water flow is usually shallow and turbulent, with a relatively high sediment concentration. These channels can undergo rapid changes, as deposition and erosion occur continuously, impacting the channel morphology and hydrological patterns.
The term "braided channel" is commonly used in geography, fluvial geomorphology, and hydrology to describe this specific type of river system. It serves as a classification to understand the behavior, processes, and unique characteristics pertaining to rivers or streams that exhibit the braiding phenomenon.
Etymology of BRAIDED CHANNEL
The term "braided channel" derives its etymology from two different sources.
Firstly, the term "braid" comes from the Old Norse word "bretta", which means "to plait" or "to twist". This Old Norse word later transformed into the Middle English word "braid", which has maintained its meaning of interweaving or intertwining strands.
Secondly, the term "channel" originates from the Latin word "canalis", referring to a narrow conduit or watercourse. This Latin word was adopted into Old French as "chanel", meaning "canal" or "trench", and eventually made its way into English as "channel".
When combined, the term "braided channel" refers to a river or stream that splits or divides into several interconnected and intertwined smaller channels, resembling the appearance of braided hair.
