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The meander belt is defined by an average meander width measured from outer bank to outer bank instead of from centerline to centerline. If there is a flood plain, it extends beyond the meander belt. The meander is then said to be free—it can be found anywhere in the flood plain. If there is no flood plain, the meanders are fixed.
A meander cutoff is a natural form of a cutting or cut in a river occurs when a pronounced meander (hook) in a river is breached by a flow that connects the two closest parts of the hook to form a new channel, a full loop.
Meander scars, oxbow lakes and abandoned meanders in the broad flood plain of the Rio Negro, Argentina. 2010 astronaut photo from ISS. A meander scar, occasionally meander scarp, [1] is a geological feature formed by the remnants of a meandering water channel. They are characterized by "a crescentic cut in a bluff or valley wall, produced by ...
Meander – One of a series of curves in a channel of a matured stream; Misfit stream – River too large or too small to have eroded the valley or cave passage in which it flows; Narrows – Restricted land or water passage; Oxbow lake – U-shaped lake or pool left by an ancient river meander; Point bar – Landform related to streams and rivers
The meander wavelength or alternate bar sequence is considered the primary ecological and morphological unit of meandering alluvial rivers. [4] The meander wavelength is composed of two alternating bar units, each with a pool scoured out from a cutbank, an aggradational lobe or point bar, and a riffle that connects the pool and point bar. [4]
This glossary of geography terms is a list of definitions of terms and concepts used in geography and related fields, including Earth science, oceanography, cartography, and human geography, as well as those describing spatial dimension, topographical features, natural resources, and the collection, analysis, and visualization of geographic data.
Wherever the river meanders, the flowing water erodes the river bank on the outside of the meander. At the same time, sediments are simultaneously deposited in a bar on the inside of the meander. This is described as lateral accretion since the deposition builds the point bar laterally into the river channel. Erosion on the outside of the ...
[3] [6] A terrace on the slip-off slope of a meander spur, known as slip-off slope terrace, can be formed by a brief halt during the irregular incision by an actively meandering river. [7] Aerial photograph of a meander on the Economy River, Nova Scotia. The gravel area on the inside of the meander near the centre-right of the image is a slip ...