height‚ energy and load changes due to erosion processes such as abrasion‚ cavitation‚ attrition‚ hydraulic action and corrosion as well as how the rivers deposition rates fluxuate. The source of the mouth is the part of the drainage basin where the river starts. It is usually high above base level‚ such as a mountain‚ and has a very steep gradient. As a river flows down steep slopes the water performs head ward and vertical erosion. This form of erosion cuts down towards the river bed and carves
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Coastal Erosion‚ Coastal Transportation and Coastal Deposition. The elements that interact to produce natural processes are wind‚ waves and tides. Each phenomenon at Muriwai’s coastal geographic environment has been produced by interaction. Coastal Erosion is a process at Muriwai that gradually wears away the rock particles of the earth’s surface‚ transporting them to another location. There are many types of processes that cause erosion at Muriwai such as wave erosion‚ wind erosion
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Conclusion Summary of the Presentation of findings Was aim achieved Recommendations What can be done to mitigate negative effects if any? Appendix Samples of findings Questionnaire if any Sample Topic: How do the processes of erosion and deposition influence contrasting landforms observed at selected areas along the coastline of Palisadoes Kingston and Hector’s river Portland. Sample Aim: The aim of the study is to identify and describe the different coastal processes involved in the
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river’s long profile (15 MARKS) Upper - Erosion - Vertical - Weak Erosion but strong Velocity In the upper stage of the river’s long profile‚ there is mainly vertical erosion and by abrasion. Erosion occurs when there are high-energy conditions and discharge are high after heavy rain or ice melt. The rough channel from the high velocity causes turbulence and the large‚ angular bedload is dragged along the river bed‚ causing intense downwards (vertical) erosion. Mainly large particles such as boulders
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of the erosion that occurs in the upper course is vertical and as the river bed is eroded lower the valley becomes steeper. The river is narrow with a shallow channel. As discharge is calculated by measuring the cross sectional area of the channel multiplied by the velocity‚ the discharge is small. The river is mainly slow flowing as most of its energy is used overcoming the friction of the large angular bedload. The bedload is large and angular as it hasn’t been subjected too much erosion. Any changes
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Rivers‚ Flood and Management The draining basin hydrological cycle: The drainage basin is the area of land that is drained by a river and its tributaries. Also; the catchment area from which a river system obtains its water. Drainage basin largely ‘closed’ system- watershed – boundary of a water basin- generally follows a ridge of high land. Movement of water in a drainage basin-Drainage Basin Hydrological Cycle- open system with inputs and outputs LOOK AT PAGE 9 IN NEW TEXTBOOK FOR DIAGRAM
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cycle. Michigan is full of rivers and lakes‚ but it is most importantly known for its great lakes‚ making Michigan the “Mitten State.” That being said‚ it is no surprise that water has a large effect on the state‚ shaping the land with the erosion and deposition that occurs with lakes and rivers‚ to the glacial movement a million years ago. How has water shaped the mitten shape of Michigan not only today‚ but also during the glaciers of the Ice Age? The glaciers that covered Michigan over one million
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energy and more erosive power. Energy is lost as the river flows over a riffle because of friction. These cause the river’s flow to become uneven and maximum flow to be concentrated on one side of the river‚ causing lateral erosion on one side‚ creating an outer concave bank. Deposition takes place on the other side of the bend‚ creating a convex bank. The cross-section of a meander is asymmetrical. The outer bank forms a river cliff or a bluff with a deep pool close to the bank‚ mainly because of the
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little water in the river giving it less energy to change the depth of the channel by erosion. As you go downstream the volume/amount of water (also known as discharge) also increases because more and more tributaries join the main river. The increase of water makes the energy levels rise when theres moe energy there is more erosion (in the form of abrasion‚ attrition and hydraulic action). these types of erosion erode away at the river bed creating a deeper channel. Whilst the depth varies downstream
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One of the most unique factors of Death Valley is its thoroughly different geological characteristics. There is volcanic activity‚ occurrences of erosion and deposition‚ as well as interesting types of landforms‚ minerals and rocks that all makes up Death Valley’s complicated‚ but interesting geological history and features. The current aspect of the geology of Death Valley as well as the shape of its future is all but dull‚ but how did Death Valley get this‚ both intriguing and beautiful‚ landscape
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