In geography , a bank is the land alongside a body of water . Different structures are referred to as banks in different fields of geography, as follows.
22-619: [REDACTED] Look up left bank in Wiktionary, the free dictionary. Left Bank generally refers to the bank of a river or other body of water that is on the left side when facing downstream. It may specifically refer to: Places [ edit ] Left Bank of the Rhine , the western bank of the Rhine, formerly part of the Holy Roman Empire Left Bank (Biscay) ,
44-416: A marsh , swamp , slough , or estuary , sometimes called a bank, is likewise studied in freshwater ecology. Banks are also of interest in navigation , where the term can refer either to a barrier island or a submerged plateau , such as an ocean bank . A barrier island is a long narrow island composed of sand and forming a barrier between an island lagoon or sound and the ocean. A submerged plateau
66-698: A 1960s American pop group Administrative-Territorial Units of the Left Bank of the Dniester Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Left Bank . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Left_Bank&oldid=1210899293 " Categories : Disambiguation pages Place name disambiguation pages Hidden categories: Short description
88-674: A 2008 Belgian film Rive Gauche Nightclub , a Parisian-themed nightclub in the River West District of Chicago, US Left Bank , an offshoot of the French New Wave "Left Bank", a song from the 2007 album Pocket Symphony by Air St Margaret of Antioch Church, Leeds , now an arts centre known as Left Bank Leeds See also [ edit ] All pages with titles containing Left Bank All pages with titles containing Rive Gauche Bank (geography) Right Bank (disambiguation) The Left Banke ,
110-487: A constant flux. Channel heads associated with hollows in steep terrain frequently migrate up and down hillslopes depending on sediment supply and precipitation. Natural channels are formed by fluvial process and are found across the Earth . These are mostly formed by flowing water from the hydrological cycle , though can also be formed by other fluids such as flowing lava can form lava channels . Channels also describe
132-411: A natural formation, the cognate term canal denotes a similar artificial structure. Channels are important for the functionality of ports and other bodies of water used for navigability for shipping . Naturally, channels will change their depth and capacity due to erosion and deposition processes. Humans maintain navigable channels by dredging and other engineering processes. By extension,
154-420: Is a difference between low gradient streams (less than a couple of percent in gradient or slightly sloped) and high gradient streams (steeply sloped). A wide variety of stream channel types can be distinguished (e.g. braided rivers , wandering rivers, single-thread sinuous rivers etc.). During floods , water flow may exceed the capacity of the channel and flood waters will spill out of the channel and across
176-418: Is a relatively flat topped elevation of the sea floor at shallow depth — generally less than 200 metres (660 ft) — typically on the continental shelf or near an island . Channel (geography) In physical geography and hydrology , a channel is a landform on which a relatively narrow body of water is situated, such as a river , river delta or strait . While channel typically refers to
198-433: Is different from Wikidata All article disambiguation pages All disambiguation pages left bank In limnology (the study of inland waters), a stream bank or river bank is the terrain alongside the bed of a river , creek, or stream . The bank consists of the sides of the channel , between which the flow is confined. Stream banks are of particular interest in fluvial geography, which studies
220-462: Is frequently called a canal , with the Panama Canal providing an example. The term not only includes the deep-dredged ship-navigable parts of an estuary or river leading to port facilities, but also to lesser channels accessing boat port-facilities such as marinas . When dredged channels traverse bay mud or sandy bottoms, repeated dredging is often necessary because of
242-661: Is the most upslope part of a channel network and is defined by flowing water between defined identifiable banks. A channel head forms as overland flow and/or subsurface flow accumulate to a point where shear stress can overcome erosion resistance of the ground surface. Channel heads are often associated with colluvium , hollows and landslides . Overland flow is a primary factor in channel initiation where saturation overland flow deepens to increase shear stress and begin channel incision. Overland flows converge in topographical depressions where channel initiation begins. Soil composition, vegetation, precipitation, and topography dictate
SECTION 10
#1732765918936264-586: The valley bottom, floodplain or drainage area . Examples of rivers that are trapped in their channels: Grand Canyon and Black Canyon of the Gunnison . In a larger nautical context, as a geographical place name, the term channel is another word for strait , which is defined as a relatively narrow body of water that connects two larger bodies of water. In this nautical context, the terms strait , channel , sound , and passage are synonymous and usually interchangeable. For example, in an archipelago ,
286-545: The amount and rate of overland flow. The composition of a soil determines how quickly saturation occurs and cohesive strength retards the entrainment of material from overland flows. Vegetation slows infiltration rates during precipitation events and plant roots anchor soil on hillslopes. Subsurface flow destabilizes soil and resurfaces on hillslopes where channel heads are often formed. This often results in abrupt channel heads and landslides. Hollows form due to concentrated subsurface flows where concentrations of colluvium are in
308-567: The deeper course through a reef , sand bar , bay , or any shallow body of water. An example of a river running through a sand bar is the Columbia Bar —the mouth of the Columbia River . A stream channel is the physical confine of a stream ( river ) consisting of a bed and stream banks . Stream channels exist in a variety of geometries. Stream channel development is controlled by both water and sediment movement. There
330-962: The left bank of the Nervión in Biscay, Spain The left bank of the Ishim in Astana , Kazakhstan Left-bank Ukraine , a historical region in Ukraine and part of Kyiv Bordeaux wine regions#Left Bank , a wine region in France Left Bank, a laneway adjoining Cuba Street, Wellington Rive Gauche , the southern bank of the Seine in Paris, France Other uses [ edit ] Left Bank (horse) , an American Thoroughbred racehorse Left Bank (film) ,
352-402: The processes associated with rivers and streams and the deposits and landforms created by them. Bankfull discharge is a discharge great enough to fill the channel and overtop the banks. The descriptive terms left bank and right bank refer to the perspective of an observer looking downstream ; a well-known example of this being the southern left bank and the northern right bank of
374-400: The product of the sediment load and bed Bukhara size is proportional to the product of discharge and channel slope. A term " navigable channel " is used as a nautical term to mean a lane for ship travel, frequently marked (cf. Buoy ) and sometimes dredged . Thoresen distinguishes few categories of channels, from A (suitable for day and night navigation with guaranteed fairway depth ) all
396-480: The river Seine defining parts of Paris . The shoreline of ponds , swamps , estuaries , reservoirs , or lakes are also of interest in limnology and are sometimes referred to as banks. The grade of all these banks or shorelines can vary from vertical to a shallow slope. In freshwater ecology , banks are of interest as the location of riparian habitats . Riparian zones occur along upland and lowland river and stream beds. The ecology around and depending on
418-430: The term also applies to fluids other than water, e.g., lava channels . The term is also traditionally used to describe the waterless surface features on Venus . Channel initiation refers to the site on a mountain slope where water begins to flow between identifiable banks. This site is referred to as the channel head and it marks an important boundary between hillslope processes and fluvial processes. The channel head
440-688: The unstable subsequent movement of benthic soils. Responsibility for monitoring navigability conditions of navigation channels to various port facilities varies, and the actual maintenance work is frequently performed by a third party. Storms, sea-states, flooding, and seasonal sedimentation adversely affect navigability . In the U.S., navigation channels are monitored and maintained by the United States Army Corps of Engineers (USACE), although dredging operations are often carried out by private contractors (under USACE supervision). USACE also monitors water quality and some remediation. This
462-512: The water between islands is typically called a channel or passage . The English Channel is the strait between England and France. The channel form is described in terms of geometry (plan, cross-sections, profile) enclosed by the materials of its bed and banks. This form is under influence of two major forces: water discharge and sediment supply. For erodible channels the mutual dependence of its parameters may be qualitatively described by Lane's Principle (also known as Lane's relationship ):
SECTION 20
#1732765918936484-400: The way to D with no navigational aids and only estimated depths provided to the shipmaster . With regard to the dredging , channels can be unrestricted (wide enough to accommodate 10-15 widths of a largest ship used in this channel, semi-restricted with limited dredging in shallow waters, and fully restricted , where the entire channel is dredged. The latter, entirely human-made, channel
#935064