A river changes as you move from the source to the mouth (downstream)‚ but also from bank to bank (across stream). In this essay I will be discussing how depth velocity and bedload size change downstream and across stream linking to past river theory (the Bradshaw method). Depth is defined as the distance between the surface of the river to the bottom (the river bed) this distance is measured in a straight vertical line. As you move from the source to the mouth the river depth increases. (which
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clean their feathers‚ they may consume the oil which is fatal. In addition‚ animals with fur and feathers may freeze due to the damage of their protective covers (Fominyen‚ 2010). The deep-water spill also known as the Gulf oil spill is identified as the worst oil spill in the United States’ history. By the time deep-water horizon oil rig sank and exploded on April 20‚ 2010. There had been BP pipe leakage of oil and gas on the floor of the ocean located approximately 42 miles off the coast of Louisiana
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diagrams and annotated photographs. When a river runs over alternating layers of hard and soft rock‚ rapids and waterfalls may form Waterfalls A waterfall is a place where water flows over a vertical drop in the course of a stream or river. Landforms in upland regions are dominantly created by erosion processes‚ where land is worn away. Generally‚ the volume and discharge of rivers in upland regions tends to be low‚ and the river uses much of it’s energy in overcoming friction
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The study of ethics is a very old process. It is a topic scholars have been studying and theorizing on for centuries. This is not the case when we talk about environmental ethics. The study of environmental ethics has only really been studied for the past forty years or so. Ethics is defined as the study of right and wrong conduct. (Ruggiero‚ (2008)‚ pg. 5) This translates to the environment by how we as humans do right or wrong to the environment. For many years people have gone about their
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background Upper course The source of the river is normally found in an area of high ground. The river usually flows through a steep V-shaped valley. Most 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
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remnants of Hurricane Alex Valley shape Really steep sided deep valleys of the R. Valency and the R. Jordan The valleys funnel the water down towards Boscastle Small ‘flashy’ catchments that funnel water into rivers quickly. 23 sq. km. Rivers run off the high ground of Bodmin Moor (relief rainfall) Geology Impermeable rocks (slates and granite) and clay soils Human Boscastle built beside the sea on a flood plain at the end of the narrow river valleys. Effects: . Around 1000 residents and visitors
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located on the confluences of the river Ganges and Brahmaputra these are two very large rivers which meet in Bangladesh. Causes: The Bangladesh flood is a result of both physical and human factors because: Topography: Bangladesh has a low height above sea level which is approximately 2-8m. This means that as the sea level rises more water will be closer to the surface and its 140 million people live mainly on the flood plains of the river Ganges‚ Brahmaputra and Meghna
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Streams and rivers * WetlandsPonds and lakes These regions range in size from just a few square meters to thousands of square kilometers. Scattered throughout the earth‚ several are remnants from the Pleistocene glaciation. Many ponds are seasonal‚ lasting just a couple of months (such as sessile pools) while lakes may exist for hundreds of years or more. Ponds and lakes may have limited species diversity since they are often isolated from one another and from other water sources like rivers and oceans
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increase in sea level rise etc. Over–saturated soil (when the ground can’t hold in any more water and could turn into mud etc): Infiltration can’t take place due to the soil’s impermeability resulting in so then surface run off will be increased. High River‚ Stream‚ and Sea Level (caused by heavy rain/particle expansion): The amount of water in the channel becomes too high‚ forcing water inland. Objects such as fallen trees and littering can causes blocks in the flow of the water‚ which can also cause
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boundaries Volcanoes also found in the middle of plates or ‘Hot spots’. Types of plate boundary Destructive Constructive Conservative/Transform Moving towards each other Oceanic crust is destroyed in subduction zone Fold mountains Deep sea trench Composite Volcanoes Severe Earthquakes e.g. West coast of S. America Moving apart New crust is formed as the gap is filled by magma Shield volcanoes Volcanic islands e.g. Iceland Under oceans e.g. Mid-Atlantic ridge Moving
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