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Topic: Braided river


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In the News (Wed 9 Dec 09)

  
  River - MSN Encarta
A watershed is bounded by the ridges or hilltops that divide it from adjacent watersheds, or drainage basins.
The third zone of a river is the zone influenced by the ocean or lake where the river ends.
Braided and straight patterns are usually located in the mountains or hills below the headwater zone of rivers, while meandering and anastomosing patterns are located in the middle and mouth zones of most rivers.
encarta.msn.com /encyclopedia_761569915/River.html   (2002 words)

  
 Braided river - Wikipedia, the free encyclopedia
Braided drainage pattern near the junction of the Yukon River and the Koyukuk River in Alaska, August 24, 1941.
A braided river is one of a number of channel types and has a channel that consists of a network of small channels separated by small and often temporary islands called braid bars.
Braided streams are common wherever a drastic reduction in stream gradient causes the rapid deposition of the stream's sediment load.
en.wikipedia.org /wiki/Braided_river   (482 words)

  
 Platte River—Braided Rivers   (Site not responding. Last check: 2007-11-01)
Braided rivers flow across a broad floodplain, covering it with multiple channels of shallow water and loose sediment.
In the Platte, however, reduced flows and sediment supply have impaired the river's ability to maintain its braided character, allowing forests to become established river and causing the channel to change to a meandering form.
The Platte River was originally a braided river—wide, shallow and dotted with sandbars.
www.whoopingcrane.org /html/braided.html   (187 words)

  
 Braided Chair Pads -- Recommendations and Resources   (Site not responding. Last check: 2007-11-01)
Braiding of fiber yarn creates a strand or rope that is thicker and stronger than the strands would have been separately.
The idea is that braids can be organised into groups, in which the group operation is 'do the first braid on a set of strings, and then follow it with a second on the twisted strings'.
Braid groups may also be given a deeper mathematical interpretation: as the fundamental group of certain configuration spaces.
www.becomingapediatrician.com /health/22/braided-chair-pads.html   (1194 words)

  
 [No title]
Although the quantitative description of braided river phenomena is at present dominated by static planform characteristics, topographic characteristics and the dynamic behaviour of the morphology are equally important for describing braiding.
Characteristics describing braided river dynamics encompass the spatial and temporal sequence of events like channel migration, avulsion or chute cut-off, the rate of bar migration relative to bend migration or the range of magnitude and shape of erosion and deposition zones relative to the average sediment transport rate.
On this basis, the cellular braided river model of Murray and Paola was chosen as a case study to apply the introduced evaluation techniques capturing planform and topographic characteristics as well as some dynamic aspects, as far as it is possible from the sparse set of present methods.
www.apmaths.uwo.ca /~mdavison/_library/preprints/River.doc   (13685 words)

  
 LECTURE NOTES ON THE MAJOR SOILS OF THE WORLD
Braided rivers are particularly common near glacier fronts and in volcanic areas where glacier melting or volcanic eruptions are associated with sharp peaks in sediment supply.
The deltas of the rivers Rhône, Ebro and Nile in the Mediterranean Sea, and of the river Danube in the Black Sea are examples of wave-dominated deltas.
Rivers debauching on meso- and macrotidal coasts have mouths that are strongly widened by incoming tides.
www.fao.org /DOCREP/003/Y1899E/y1899e07.htm   (13506 words)

  
 rivernote3
Geologically, the Vermillion River Bottoms is a remnant of the old braided-stream river system that dominated the Mississippi after the last glaciers melted.
The river bottoms were popular long before Europeans arrived; there are 31 known archeological sites in the Mississippi Valley from the St. Croix to the Cannon River, four of them within a half-mile of the outlet of Goose Lake, near Prairie Island.
It was a desperate attempt to knock the river into a steady state," said Mike Davis, DNR biologist in Lake City, Minn. "In the meantime the Vermillion has become an increasingly algae-driven system.
www.big-river.com /rivernote3.html   (1536 words)

  
 Braided Streams
Braided river at junction of Gakona and Copper River, Alaska
Braided streams are created when the discharge of water cannot transport its load.
Braided channels are common in glaciated or recently glaciated landscapes where streams are fed by debris-choked melt water..
www.uwsp.edu /geo/faculty/ritter/glossary/A_D/braided_streams.html   (84 words)

  
 Platte River Whooping Crane Maintenance Trust—Publications & Reports   (Site not responding. Last check: 2007-11-01)
The Platte as a prairie river: a response to Johnson and Boettcher.
Currier, P.J. Reclamation of crane roosting habitat on the Platte River and restoration of riverine wetlands.
Proceedings of the Platte River Basin Symposium 1996.
www.whoopingcrane.org /html/reports1.shtml   (1149 words)

  
 Braided Rivers :: Stronghold Knights :: Ready to serve you!
Rivers vary because there are many factors that influence them such as their age, the amount of sediment they carry, the climate, their flowing speed and the angle of the river bed.
Braided rivers form because the water they carry holds so much sediment that the river is forced to split in small streams that constantly change their path.
Braided rivers are best placed o­n large open spaces in maps, preferably gently sloping plateau's.
www.stronghold-knights.com /site/article163.html-1   (544 words)

  
 Library Index Page   (Site not responding. Last check: 2007-11-01)
As the Willamette Valley was settled, though, the complexity of the river ecosystem made it difficult to float logs and crops from Eugene to Portland.
When combined with urban and suburban growth along the river, the cumulative result was to reduce total channel length by 40-50% and to cut off the river from much of its floodplain.
The role of River Network is to keep alive the vision of floodplain restoration as one tangible thing that we can do to prepare for the next big flood, and at the same time to help fish and wildlife, water quality and water supply.
www.rivernetwork.org /library/index.cfm?doc_id=163   (1143 words)

  
 UC Davis Geology - GEL 109 Lecture 8: Ice   (Site not responding. Last check: 2007-11-01)
Rivers consist of a channel, bank and overbank or flood plain deposits.
Braided Rivers - Braided rivers develop when the proportion bed load sediment is high, which produces abundant bedforms and promotes the development of bars, and thus, the braided character of the river.
When the next flood comes along, the river avulses and does not go back into its old channel which is higher than a new one on the flood plain.
www-geology.ucdavis.edu /~gel109/Lectures/Rivers.html   (826 words)

  
 Rivers   (Site not responding. Last check: 2007-11-01)
Rivers carry nutrients to the forests by way of fish, insects and other animals that live in this aqueous world.
Rivers face many new hazards in today's world: fishery reductions, habitat destruction from logging along a river’s edge, run-off pollution from roads and development, water use from growing populations, water flow shifts due to climate change.
Olympic National Park's rivers are protected from some of these impacts, but further protection depends on you.
www.nps.gov /olym/invriver.htm   (211 words)

  
 Everglades Restoration Priorities :: Kissimmee River Restoration
Before channelization, the river was a haven for wildlife, including at least 39 species of fish and 38 species of water birds.
Utilization of the river by ducks decreased an estimated 93%.
Only part of the river will be restored, however, by the removal of two water control structures and the filling in of 22 miles of canal.
www.audubonofflorida.org /science/kissrivrest.htm   (532 words)

  
 Too-loó-uk - Alaska River Guides - River Exploratory
River volumes here are tremendous and their waters heavily laden with the silt and sediments from the countless glaciers and massive ice fields at their source and the source of nearly every tributary.
We'll start this epic river expedition on the Kennicott River, a tributary of the Nizina River, which is a tributary of the Chitina.
This engineering marvel of it's time is a remnant of the Northwest and Copper River railroad that once traveled up the Copper And Chitina Rivers in the early 20th century to the once booming towns of Chitina and McCarthy and the rich Kennicott Copper mines.
www.akrivers.com /tana.html   (519 words)

  
 CHRS - Alsek River - Fact Sheet
From its origin as a braided stream at the confluence of the Kaskawulsh, Dusty and Dezadeash rivers, the Alsek flows for approximately 250 km across the Yukon Territory, the northern tip of British Columbia and the Alaskan panhandle, emptying into the Pacific Ocean at Dry Bay, Alaska.
The designated river segment comprises the headwaters and upper reaches which flow through a 5-10 km wide, 16 km long braided channel section and then through a 74 km stretch of big water rapids, canyons, glaciers and floating icebergs.
The Tatshenshini-Alsek River corridor south of Kluane, from Dalton Post to Dry Bay, and the Dezadeash-Alsek River corridor entering the reserve from Haines Junction, are becoming popular as destinations for white water enthusiasts.
www.chrs.ca /Rivers/Alsek/Alsek-F_e.htm   (1907 words)

  
 The Durango Telegraph - Cover Story
According to Christian, Braided River works to create an environment where offenders are held accountable for their actions and harm is repaired to victims.
In the case of Anderson, he approached Braided River for the mediation and wanted to make peace with Allen and her family of four.
According to Christian and Graham, who run Braided River along with Julie Goodman, this kind of healing and accountability is the aim of the project and restorative justice.
www.durangotelegraph.com /03-10-02/cover_story.htm   (1170 words)

  
 Prediction of discharge from water surface width in a braided river with implications for at-a-station hydraulic ...
Prediction of discharge from water surface width in a braided river with implications for at-a-station hydraulic geometry
The total discharge of small braided rivers can be monitored nearly continuously using ground-based, orthorectified oblique images and a locally derived relationship between mean water surface width in a reach and total discharge with accuracy of the order of 10%.
However, the prospect of a more universal relation for braided rivers is remote because of differences in channel geometry and hydraulics between rivers.
www.agu.org /pubs/crossref/2006/2005WR003993.shtml   (293 words)

  
 [No title]   (Site not responding. Last check: 2007-11-01)
Braided Rivers exhibit numerous channels that split off and rejoin each other to give a braided appearance.
Consequently, braided rivers usually exist near mountainous regions, especially those with glaciers.
Deposits of Braided Rivers tend to be coarse-grained and contain abundant channels.
darkwing.uoregon.edu /~millerm/braided.html   (69 words)

  
 Pemigewasset River - Wikipedia, the free encyclopedia
The Pemigewasset River (IPA: [ˌpɛmɪdʒəˈwɑsət]) (known locally as "The Pemi") is a river in the state of New Hampshire, the United States.
The river passes through the communities of Lincoln, North Woodstock, Woodstock, Thornton, Campton, Plymouth, Ashland, Bridgewater, Bristol, New Hampton, Hill, Sanbornton, and Franklin.
The remainder of the northern Pemi, from Lincoln to Ashland, is a braided river that passes over copious gravel bars and attracts numerous boaters and fishermen.
en.wikipedia.org /wiki/Pemigewasset_River   (323 words)

  
 [No title]   (Site not responding. Last check: 2007-11-01)
These rivers are often found in scarcely inhabited regions and are so dynamic that in-situ measurements are almost impossible.
In this paper, SAR imagery was used to extract braided river patterns such that their spatial scaling characteristics could be studied.
From analysis of several reaches of a braided river in Alaska (the Tanana River), self-affine spatial scaling of the river patterns was found to be present under different flow rates and in different seasons when the river was undisturbed (free of external topographic controls).
www.agu.org /pubs/gap/GeorgiouE/GeorgiouE.html   (224 words)

  
 Arkansas River Coalition
The Arkansas River Coalition is an organization working to protect, restore and improve the quality of the groundwater and surface water of the entire Arkansas River Watershed.
The Arkansas River is one of the most historically and economically important rivers in the United States.
The president of the Arkansas River Coalition is Ben Huie.
www.arkriver.org   (564 words)

  
 River Life Teachers' Resource Kit: Other Braided River Birds   (Site not responding. Last check: 2007-11-01)
However, in the South Island, many live inland on braided rivers and sparsely vegetated river terraces, where they are the most numerous wading bird.
During the rest of the year, the flbilled gull is found inland, breeding and feeding in colonies on shingle islands in rivers.
Make a list of the different features, using the birds of the braided rivers, or the river birds which you are familiar with.
www.doc.govt.nz /Community/001~For-Schools/002~Themes/010~Rivers-and-Lakes/River-Life-Resource-Kit/006~Other-Braided-River-Birds.asp   (496 words)

  
 Alaska River Rafting Adventure Tours
The Chitina River is born from the glaciers flanking the broad slopes of Mt. Logan (at 19,850 feet the second highest mountain in North America), the largest single mountain massif on earth...more...
The Copper River is the only waterway to cut through the mighty Chugach Mountains, from the dry interior of the Wrangell-St. Elias to the lush Copper River Delta.
The Chitina River is born from the glaciers flanking the broad slopes of Mt. Logan (at 19,850 feet the second highest mountain in North America), the largest single mountain massif on earth.
www.steliasguides.com /alaska_river_rafting.htm   (1342 words)

  
 Braided River by J.T. Bohlen   (Site not responding. Last check: 2007-11-01)
Commonwealth Court has ruled a Delaware River group and three residents can intervene in the state Department of Environmental Protection's lawsuit against PPL Corp. in connection with the August fly ash spill at the company's Martins Creek power plant.
The Susquehanna River could have killed Danielle MacGuire and Daniel Zapp on Jan. 8, 2000, when they were dumped into its icy, swirling waters.
Girls athlete of the week Kelsey Erdman, a 5-foot-8 junior forward for River Hill, closed out a strong playoff week with a 13-point, 17-rebound effort to help lead the No. 8 Hawks (26-0) past Howard County-rival Mount Hebron, 54-39, for their second straight Class 3A East regional crown on Friday.
www.hudson-river-fishing.com /us/0615112730.html   (410 words)

  
 SUBFOSSIL BRAIDED RIVER PATTERN AS AN INDICATOR OF EXTREME SHORT TERM EVENTS, SUDETES MOUNTAINS, CENTRAL EUROPE   (Site not responding. Last check: 2007-11-01)
Big boulders deposited here form a typical braided pattern overgrown with old spruce forest; the braided river pattern consist of a group of boulder palaeo-bars, te majority of which formed as longitudinal central bars with lee slopes running diagonally to the valley axis.
Tree-ring increment analysis indicates that the oldest spruces growing on this braided river pattern may be more than 75 years old so that, allowing for the time required for the formation of the initial soil and the succession of pioneer vegetation, the spruces succeeded here around the turn of the 20th century.
The largest flood, in July 1903, was caused by a precipitations amount not previously recorded; on 9 July 1903 the rain gauges in the northern part of the massif received 200-240 mm of precipitation which generated a flood wave sufficient to transport and deposits very coarse material, forming the braided river pattern.
gsa.confex.com /gsa/inqu/finalprogram/abstract_54347.htm   (425 words)

  
 Alaska's Copper River Valley   (Site not responding. Last check: 2007-11-01)
The Copper River Valley or Copper River Basin is an area of about 3.5 million acres surrounding the braided Copper River, north of Prince William Sound.
Many of the townsites in the Copper River Basin are situated near the sites of traditional Native fishing villages, at the mouths of tributaries entering the Copper River.
King Salmon season in the Copper River area is from mid-June to mid-July and Copper River Red Salmon can be caught in most tributaries from June through August.
www.alaskayukontravel.com /copperriver.htm   (544 words)

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