meander bar

См. также в других словарях:

• bar —    1)     a) [ streams ]    A general landform term for a ridge like accumulation of sand, gravel, or other alluvial material formed in the channel, along the banks, or at the mouth of a stream where a decrease in velocity induces deposition; e.g …   Glossary of landform and geologic terms

• Meander — For other uses, see Meander (disambiguation). A hypothetical stream bed following a tilted valley. The maximum gradient is along the down valley axis represented by a hypothetical straight channel. Meanders develop, which lengthen the course of… …   Wikipedia

• Meander cutoff — Animation of the formation of an oxbow lake A meander cutoff occurs when a meander bend in a river is breached by a chute channel that connects the two closest parts of the bend. This causes the flow to abandon the meander and to continue… …   Wikipedia

• meander scroll —     a) One of a series of long, parallel, close fitting, crescent shaped ridges and troughs formed along the inner bank of a stream meander as the channel migrated laterally down valley and toward the outer bank.    Compare: meander belt, point… …   Glossary of landform and geologic terms

• bar and channel topography —    A local scale topographic pattern of recurring, small, sinuous or arcuate ridges separated by shallow troughs irregularly spaced across low relief flood plains(slopes generally 2 –6 %); the effect is one of a subdued, sinuously undulating… …   Glossary of landform and geologic terms

• Mouth bar — A mouth bar is a bar in a river that is typically created in the middle of a channel in a river delta.[1] It is created by a positive feedback between mid channel deposition and flow divergence. As the flow diverges near the ocean, sediment… …   Wikipedia

• Braid bar — Braid Bars, or mid channel bars, are landforms in a river that begin to form when the discharge is low and the river is forced to take the route of less resistance by means of flowing in locations of lowest elevation. Over time, the river begins… …   Wikipedia

• point bar —    1) One of a series of low, arcuate ridges of sand and gravel developed on the inside of a growing meander by the slow addition of individual accretions accompanying migration of the channel toward the outer bank.    Compare: meander scroll.… …   Glossary of landform and geologic terms

• Gravel bar — A gravel bar is a hydrogeologic sediment composed of gravel, and is prone to continuous erosion and meandering due to fluid dynamics. Gravel bars are typically found in the slowest moving, and shallowest parts of water bodies. [cite book… …   Wikipedia

• point bar — noun A ridge, formed from the accretion of sand or gravel, on the inside curve of a meander …   Wiktionary

• point-bar —   gently sloping inner bank of a meander. The shorter distance around the inside of the bend requires a lower velocity and therefore deposition. Leads to the encroachment of the inner bend across the channel …   Geography glossary