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  1. In geology, a trough is a linear structural depression that extends laterally over a distance. Although it is less steep than a trench, a trough can be a narrow basin or a geologic rift. These features often form at the rim of tectonic plates.

  2. May 28, 2023 · The equatorward region of any meander is called a trough (pronounced like “troff”) and is associated with low pressure or low geopotential height. The poleward portion of a meander is called a ridge , and has high pressure or height.

  3. The term ‘trough’ is also, and in accordance with this definition, applied to equatorward meanders of the flow of the upper westerly winds over middle latitudes. (The ‘equatorial trough’, where trade winds meet, is synonymous with the ‘intertropical convergence zone’.)

  4. The lowest part is called the wave trough. The vertical distance from the highest part of a wave to the lowest is called the wave height. The horizontal distance between one wave crest and the next crest, is called the wavelength. Three things influence how big a wave might get.

  5. The formation of a glacial trough involves two processes abrasion and plucking. Abrasion is when pieces of debris in the glacier wear away at the rocks below, a bit like sandpaper. The...

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  6. Nov 25, 2021 · Glacial troughs and fjords are deep erosional features calved into bedrock marking glacial activity [1,2]. The most characteristic difference between a trough and a fjord, is that a fjord ends in a coastal region, and is flooded by sea water [3].

  7. These are valleys formed by the glacial processes of weathering, erosion and transportation. They have steep sides and flat floors. Unlike V-shaped river valleys, glacial troughs are straight as they have truncated any interlocking spurs which existed prior to glacial advance.

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