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The work of the river and the speed of the river

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The work of the river and the speed of the river:
The speed of the river mainly depends on the degree of slope of the valley, as well as on the amount of friction in the bottom and sides of the river downstream, as well as on the amount of water and the amount of cargo carried by the river itself. The flow velocity increases in the case of the rest of the stability of other factors with increasing degree Alanhaddarvi valley and river below that speed with a few in the degree of the decline of river valleys. Where increasingly affecting the water in the first case, the force of gravity. The resulting friction between the moving water gets between the bottom and sides of the river valley to reduce the speed of flow in the river. And up to and including the effect with increasing regularity and the absence of vortices, which occur in certain locations of the sector of the river. In spite of the lack of similarity of cross-sections of the rivers, but the surface section of the river water, which is located above the deep river segment is more speed points. Runoff to stay away from that place speed and decreasing toward the bottom and sides.
   River run-off speed increases with the amount of discharged and at least that speed with the rest of variables remain the same, as there is a close relationship between the flow velocity and the amount of discharge identified the following equation:
Q = AV
Where Q = the amount of discharge measured volumetric unit (eg cubic meters)
A = cross-sectional area (square meters)
V = average flow velocity (meters / second, for example)
      The close relationship between the flow velocity and the amount of tonnage the river and there are, as with the rest of the factors that affect the speed stability of river run-off speed is high amount of load is much less than the speed of the flow of rivers that are of less load.
     Speed ​​plays an important role in determining the amount of river load of those that are on the hall and private Gilbert Gilbert stated that the ability to move the river bottom material increase 16 times if it doubled the speed of the river. Also, the degree of impact of the turmoil in the nature of the load carried by the river if a growing proportion of small material particles in rivers dominated by currents increase from the turmoil in the river.
      And play nature of the rocks by the river being an important role in determining the quality and quantity of the payload as it sometimes happens that being fast and powerful rivers above the solid rock and the resistance shall be loaded in this case a few. The opposite occurs when they take place some slow flowing rivers above the fragile configurations disjointed leads to a large river payload, and is considered the river Hwank is in China is a good example of this situation, where he is being above the gently sloping area is coherent conveys large quantities be changed from one form waters towards the yellow color of which came naming this river yellow river. As for the material transported dissolved, it depends on the amount of solubility of the rocks and the degree of purity of the water. The river depositing coarse material atoms and then pick them up again and Arsabha Thus, explains how to navigate these susceptibility dams and barriers, sand and gravel, which is built by the river and then Aahtmha and transmitted to another place.
Mlahoudh: here debugger.
   Payload river: River Load
It deceives the river a factor of geomorphology when the rest of his ability to move the different load. It conveys the river various payload in several ways depending on the quality of the load, which is divided into:
1. load of dissolved Solution Load
Rivers carry a lot of material is dissolved ions and ions that are part of the same water and moving with his movement. The carbonate and sulfates, chlorides, oxides and among the most important of these ions. Most of these salts from the water table, which run slowly through the rocks and soil exposed to weathering processes comes. Only a few of them through melting operations that get on the sides and bottom of the sewer river does not come except those rivers flowing over limestone or gypsum.
     Conveys a number of rivers dissolved load of more than a thousand ppm, and is approaching the overall rate of these materials in the range of 200 ppm. The melting process not only in mountainous regions but also in women with low terrain regions and runoff slow as in the south-eastern section of the United States where it is believed that the melting process has been able to reduce ground level at a rate of one meter every 250,000 years is very important. And beyond the river load dissolved in such other types of cargo riverine areas. Murray Murray has estimated the amount of solutes around 762.587 tons in per cubic mile of river water is made up almost half of the calcium carbonate. And the movement of the rivers to the sea amount of water is estimated at about 6,500 miles 3 If the estimate is true, then Murray rivers transported amounted to 5 billion tons of material in a way to melt from the land to the sea every year.

2. payload outstanding Suspended
Payload consists of outstanding rivers of atoms very soft clay, which can be even colloidal Colloidal and keep these materials stuck in the water flow until the movement depends upon the arrival of the river into a stagnant body of water. The amount of river load of the suspended matter and do not depend on the amount of speed but also on other factors such as the nature and the amount of rain the size of atoms soil surface as well as on the amount of vegetation, especially consisting of grass. And help the turmoil resulting from the movement of water in the river carrying amounts of materials animate larger atoms, the tests conducted on some rivers have shown that a little bit of fast-flowing rivers can only be lifted sandy materials animate medium-sized atoms on the seabed. Emerging trends and plays an important role in raising the material transported and keep them stuck in the water. And increasing frequency of descending currents in the river water as it moves toward the river downstream so outnumbered the amount of water Altiarac emerging but such currents can only lead to a state of turmoil that keep materials stuck in the river water.

3. load benthic Bed load
Some of the rough material atoms, which can not river lifted or moved in a way attachment is lifted and Dhrjtha along the bottom of river to be a load of benthic and payload consists of benthic small gravel rocks and sand and can be embodied them even atoms silt coarse depending on the nature of the flow of the river and terrain. The views showed one of the sewer river laboratory which carried out through a side window located on the side of that river reaches that portion of the load benthic roll over and slip another section of which section the other ones seem him and floats like a part of the load outstanding. It would be difficult to measure the amount of load that can not be benthic where the border between the benthic and suspended solids load that are not clear report. Overall, the proportion of the load to large benthic be suspended load in rivers small ones in the big rivers. The numerous experiments were conducted to assess the viability of the river bottom to move the payload. However, as a result of any of these experiments it was not fully convincing.