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Distributary
A distributary, or a distributary channel is a stream channel that branches off and flows a main stream channel. It is the opposite of a ''tributary'', a stream that flows another stream or river. Distributaries are a result of river bifurcation and are often found where a river approaches a lake or an ocean and divides into distributary networks; as such they are a common feature of river deltas. They can also occur inland, on alluvial fans, or where a tributary stream bifurcates as it nears its confluence with a larger stream. In some cases, a minor distributary can divert so much water from the main channel that it can later become the main route. Related terms Common terms to name individual river distributaries in English-speaking countries are ''arm'' and ''channel''. These terms may refer to a distributary that does not rejoin the channel from which it has branched (e.g., the North, Middle, and South Arms of the Fraser River, or the West Channel of the Mackenzie River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Bifurcation
River bifurcation (from , fork) occurs when a river (a ''bifurcating river'') flowing in a single channel (hydrology), channel separates into two or more separate streams (called distributary, ''distributaries'') which then continue downstream (hydrology), downstream. Some rivers form complex networks of distributaries, typically in their delta (river), deltas. If the streams eventually merge again or empty into the same body of water, then the bifurcation forms a river island. River bifurcation may be temporary or semi-permanent, depending on the strength of the material that is dividing the two distributaries. For example, a mid-stream island of soil or silt in a delta is most likely temporary, due to low material strength. A location where a river divides around a rock fin, e.g. a volcanically formed Dike (geology), dike, or a mountain, may be more lasting as a result of higher material strength and resistance to weathering and erosion. A bifurcation may also be man-made, for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Delta
A river delta is a landform, archetypically triangular, created by the deposition of the sediments that are carried by the waters of a river, where the river merges with a body of slow-moving water or with a body of stagnant water. The creation of a river delta occurs at the '' river mouth'', where the river merges into an ocean, a sea, or an estuary, into a lake, a reservoir, or (more rarely) into another river that cannot carry away the sediment supplied by the feeding river. Etymologically, the term ''river delta'' derives from the triangular shape (Δ) of the uppercase Greek letter delta. In hydrology, the dimensions of a river delta are determined by the balance between the watershed processes that supply sediment and the watershed processes that redistribute, sequester, and export the supplied sediment into the receiving basin. River deltas are important in human civilization, as they are major agricultural production centers and population centers. They can provide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teton River (Idaho)
The Teton River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed May 4, 2011 tributary of the Henrys Fork of the Snake River in southeastern Idaho in the United States. It drains through the Teton Valley along the west side of the Teton Range along the Idaho-Wyoming border at the eastern end of the Snake River Plain. Its location along the western flank of the Tetons provides the river with more rainfall than many other rivers of the region. History At the time of the arrival of the Europeans to the region in the 1820s, the area was inhabited by the Shoshone and various related tribes. The lushness of the Teton Basin provided prime area for the fur trade, attracting many other tribes to region, including the Nez Perce, Flathead and the Gros Ventre. At the time, the basin was part of the disputed Oregon Country. The resulting friction between the trading groups led to recurring skirmishes in the basin. In 1832, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atchafalaya River
The Atchafalaya River () is a distributary of the Mississippi River and Red River of the South, Red River in south central Louisiana in the United States. It flows south, just west of the Mississippi River, and is the fifth largest river in North America, by discharge. The name ''Atchafalaya'' comes from Choctaw language, Choctaw for 'long river', from , 'river', and , 'long'. Atchafalaya Basin The Atchafalaya River is navigable and provides a significant industrial shipping channel for the state of Louisiana. It is the cultural heart of the Cajun Country. The maintenance of the river as a navigable channel of the Mississippi River has been a significant project of the U.S. Army Corps of Engineers for more than a century. Natural development of the river channel, coupled with channel training and maintenance for flood control and navigation, have combined to isolate the river from the swamp. The river valley forms the Atchafalaya Basin and Atchafalaya Swamp located in south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stream
A stream is a continuous body of water, body of surface water Current (stream), flowing within the stream bed, bed and bank (geography), banks of a channel (geography), channel. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long, large streams are usually called rivers, while smaller, less voluminous and more intermittent river, intermittent streams are known, amongst others, as brook, creek, rivulet, rill, run, tributary, feeder, freshet, narrow river, and streamlet. The flow of a stream is controlled by three inputs – surface runoff (from precipitation or meltwater), daylighting (streams), daylighted subterranean river, subterranean water, and surfaced groundwater (Spring (hydrology), spring water). The surface and subterranean water are highly variable between periods of rainfall. Groundwater, on the other hand, has a relatively constant input and is controlled more by long-term patterns of pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Columbia
British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, forests, lakes, mountains, inland deserts and grassy plains. British Columbia borders the province of Alberta to the east; the territories of Yukon and Northwest Territories to the north; the U.S. states of Washington (state), Washington, Idaho and Montana to the south, and Alaska to the northwest. With an estimated population of over 5.7million as of 2025, it is Canada's Population of Canada by province and territory, third-most populous province. The capital of British Columbia is Victoria, British Columbia, Victoria, while the province's largest city is Vancouver. Vancouver and its suburbs together make up List of census metropolitan areas and agglomerations in Canada, the third-largest metropolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Control Of Nature
''The Control of Nature'' is a 1989 nonfiction book by John McPhee that chronicles three attempts to control natural processes that had varying success. The book combines three long essays previously published in ''The New Yorker'': "Atchafalaya", "Cooling the Lava", and "Los Angeles Against the Mountains". These respectively describe the Old River Control Structure regulating inflow to the Atchafalaya River; the Eldfell volcanic eruption of 1973; and debris flow from the San Gabriel Mountains. Background In 1980, McPhee traveled with his daughter on a canoe trip on the Atchafalaya River due to her fascination with the novelist Walker Percy. He had conversations with natives about the efforts made by the Army Corps of Engineers in monitoring riverflow in the area. In Vicksburg, Mississippi, a man recommended to McPhee that he research the efforts being undergone to control the debris sliding down from mountains into Los Angeles. When he visited California, a geologist informed him ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Arm Of The Fraser
North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north'' is related to the Old High German ''nord'', both descending from the Proto-Indo-European unit *''ner-'', meaning "left; below" as north is to left when facing the rising sun. Similarly, the other cardinal directions are also related to the sun's position. The Latin word ''borealis'' comes from the Greek ''boreas'' "north wind, north" which, according to Ovid, was personified as the wind-god Boreas, the father of Calais and Zetes. ''Septentrionalis'' is from ''septentriones'', "the seven plow oxen", a name of ''Ursa Major''. The Greek ἀρκτικός (''arktikós'') is named for the same constellation, and is the source of the English word ''Arctic''. Other languages have other derivations. For example, in Lezgian, ''kefer'' can mean bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Arm Of The Fraser
South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both west and east. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþaz'' ("south"), possibly related to the same Proto-Indo-European root that the word ''sun'' derived from. Some languages describe south in the same way, from the fact that it is the direction of the sun at noon (in the Northern Hemisphere), like Latin meridies 'noon, south' (from medius 'middle' + dies 'day', ), while others describe south as the right-hand side of the rising sun, like Biblical Hebrew תֵּימָן teiman 'south' from יָמִין yamin 'right', Aramaic תַּימנַא taymna from יָמִין yamin 'right' and Syriac ܬܰܝܡܢܳܐ taymna from ܝܰܡܝܺܢܳܐ yamina (hence the name of Yemen, the land to the south/right of the Levant). South is sometimes abbreviated as S. Navigation By convention, the ''bottom or down-f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Orleans
New Orleans (commonly known as NOLA or The Big Easy among other nicknames) is a Consolidated city-county, consolidated city-parish located along the Mississippi River in the U.S. state of Louisiana. With a population of 383,997 at the 2020 United States census, 2020 census, it is the List of municipalities in Louisiana, most populous city in Louisiana and the French Louisiana region, the second-most populous in the Deep South, and the twelfth-most populous in the Southeastern United States. The city is coextensive with Orleans Parish, Louisiana, Orleans Parish. New Orleans serves as a major port and a commercial hub for the broader Gulf Coast of the United States, Gulf Coast region. The New Orleans metropolitan area has a population of approximately 1 million, making it the most populous metropolitan area in Louisiana and the List of metropolitan statistical areas, 59th-most populous in the United States. New Orleans is world-renowned for Music of New Orleans, its distincti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baton Rouge
Baton Rouge ( ; , ) is the List of capitals in the United States, capital city of the U.S. state of Louisiana. It had a population of 227,470 at the 2020 United States census, making it List of municipalities in Louisiana, Louisiana's second-most populous city. It is the county seat, seat of Louisiana's most populous List of parishes in Louisiana, parish, East Baton Rouge Parish, Louisiana, East Baton Rouge Parish, and the center of Louisiana's second-largest metropolitan area, Baton Rouge metropolitan area, Greater Baton Rouge, which had 870,569 residents in 2020. Located on the eastern bank of the Mississippi River, the Baton Rouge area owes its historical importance to its strategic site upon the Istrouma Bluff, the first natural cliff, bluff upriver from the Mississippi River Delta at the Gulf of Mexico. This allowed the development of a business quarter safe from seasonal flooding. In addition, it built a levee system stretching from the bluff southward to protect the rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Corps Of Engineers
The United States Army Corps of Engineers (USACE) is the military engineering branch of the United States Army. A direct reporting unit (DRU), it has three primary mission areas: Engineer Regiment, military construction, and civil works. USACE has 37,000 civilian and military personnel, making it one of the world's largest public engineering, design, and construction management agencies. The USACE workforce is approximately 97% civilian, 3% active duty military. The civilian workforce is mainly located in the United States, Europe and in select Middle East office locations. Civilians do not function as active duty military and are not required to be in active war and combat zones; however, volunteer (with pay) opportunities do exist for civilians to do so. The day-to-day activities of the three mission areas are administered by a lieutenant general known as the chief of engineers/commanding general. The chief of engineers commands the Engineer Regiment, comprisi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
