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Shoal – Natural submerged sandbank that rises from a body of water to near the surface; Spring – A point at which water emenges from an aquifer to the surface; Strath – Large valley; Stream – Body of surface water flowing down a channel; Stream pool – Deep and slow-moving stretch of a watercourse; Swamp – A forested wetland
Satellite image of the Cayman Trough Bathymetric features of the Rockall Trough northwest of Scotland and Ireland. 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 ...
Trough (geology), a long depression less steep than a trench; Trough (meteorology), an elongated region of low atmospheric pressure; Trough (physics), the lowest point on a wave; Trough level (medicine), the lowest concentration of a medicine is present in the body over time; Langmuir-Blodgett trough, a laboratory instrument
In geology a sag, or trough, is a depressed, persistent, low area; the opposite of an arch, or ridge, a raised, persistent, high area. The terms sag and arch were used historically to describe very large features, for example, characterizing North America as two arches with a sag between them. [1]
A slough in Nebraska in the United States A slough in Maxwell Township, Lac qui Parle County, Minnesota in the United States.. A slough (/ s l uː / ⓘ [1] [2] or / s l aʊ / ⓘ) [1] [2] [3] is a wetland, usually a swamp or shallow lake, often a backwater to a larger body of water. [4]
Taken Oct. 13, 2022, near the Pit River Bridge, the photo shows the lake when it was 32% full. Another photo, taken in the same area on May 9, shows the results of two wet winters.
A tunnel or conduit that channels water through or beneath an obstacle (e.g. through a man-made crossing of a ravine that would otherwise block the natural flow of water), or any artificially buried watercourse. curvimeter See opisometer. cusp An arc-shaped, dune-like mound of sediment on a beach or foreshore. [14]
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