water quality is worsening in many branches of the Yangtze River that drain into the reservoir. Additionally‚ the quality of water behind the reservoir is only minimally improving. This can be attributed to the slowing of the natural flow of the river due to the dam and reservoir. The reduced flow inhibits the rivers ability to flush out pollutants naturally (Bradsher‚ 2008). Even before construction began on the 3 Gorges Dam the Yangtze River was already suffering from extreme pollution but the
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velocity of the river increases down the stream as the angle of the slope increases. RIVER DEFINITION A river is the natural course of the water‚ which goes from a higher point‚ to the lowest point‚ usually the sea‚ ocean‚ lake or another river. There are few cases where the river simply flows under the ground surface or dries completely before reaching a bigger body of water. The river is also freshwater; there are no rivers with sea water (salty water). Rivers are not always
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Key Ideas for this Topic? The Shape of river valleys changes as the river flows downstream River Features & Landforms Storm Hydrographs Flooding in MEDC’s and LEDC’s Hard and Soft Strategies for River Management and Reservoirs The Shape of river valleys and River Processes A rivers long profile changes over its course. Every river has: An Upper Course Middle Course Lower Course Long Profile- shows how the gradient of a river changes along its length. Cross Profile-
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The Bradshaw model aims to show how different characteristics of a river change from the source to the mouth in a simplistic method that can easily be understood (greenfield geography‚ 2012). A geographical model is “an attempt to understand natures is high complexity. Therefore geographers try to develop simplified models of it” (Waugh‚ D. 2009). The model shows a series of triangles and each one represents a different fluvial characteristic. On the left is the source and on the right is the mouth
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urban settlements. To cope with urbanization within a drainage basin‚ urban development and deforestation are carried out‚ which affect flows to and within a river channel. Other factors like drainage density‚ climate‚ area of drainage basin and gradient of slope can also affect flows to and within a river channel. Flows to and within a river channel also include overland flow‚ infiltration‚ through flow and base flow. Overland flow is the movement of rainwater over land. It occurs when either the
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course of the morant bay river? DONE BY: GRADE: 101 METHODOLOGY This project is based on the Morant Bay River and some of the different
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across the River Caerfarell‚ in Brecon Beacons National Park. Introduction: In my report‚ I will investigate how well the Bradshaw model fits in river Caerfanell. In particular my report will focus on 3 sub questions; 1. How does the cross-sectional area of the river Caerfanell change with distance downstream? 2. How does the velocity change with distance downstream? 3. How does channel efficiency change with distance downstream? Figure 1: Bradshaw Model shows the changes of river from Upstream
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nowadays. The water is used for many reasons such as for drinking‚ increase the water supply for irrigation and to generate hydroelectric power. Besides that‚ the damped rivers also being made as one of the destination for tourism like Tasik Kenyir in Terengganu. The process of constructing the reservoir is being made by damping of a river. We always think that these reservoirs will give us a lot of benefit‚ but how about the negative effect of the existence of this reservoir? Do you know that the construction
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duration‚ flood routing and catchments basin modeling. 7. Discuss the – i. Extend of flooding ii. Measures taken to control flooding iii. Advantages of measures taken iv. Disadvantages of the measures taken for follow two rivers a. Mississippi river b. Kissimmee river 8. What are the causes of flooding in Bangladesh? 9. How the floods of Bangladesh can be controlled? 2|Page Flood A flood is relatively high flow of stream or tidal water that overtops the natural or artificial banks
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reminder of life. In ancient complex river societies water provided a beginning and advancement opportunity in agriculture in that it cared for plants‚ provided for animals‚ replenished drinking water‚ and was a beacon for trade and vocation. One main use of water was providing fertile silt and fresh water for agriculture and planting necessary fruits and vegetables. Due to the excessive flooding and heavy rain falls that were common to the complex river societies in ancient Egypt‚ Asia‚ and
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