Discuss the relative importance of two or more processes responsible for shaping the coast (such as marine erosion, transportation; deposition and land-based sub-aerial weathering, mass movement and runoff). (15 marks) The coast has many processes, which overtime will shape and change what it looks like. They are all responsible for shaping the land, they are all important in one way or another. The coastline is always changing. Marine erosion is a process which has a massive effect on the coastline.
Which category a hurricane is put under is decided by storm’s wind speed. The higher the category the more deadly the storm becomes. Large storms at sea cause huge waves that can roll over tanker ships and other top heavy vessels. The most powerful part of a hurricane is it’s eye wall. The eye wall is where the heaviest rain and the most powerful wind is located.
The evidence of sea floor spreading was further supported by Vine and Drummond, who studied the magnetic pattern of the sea floor. They found that the Earth’s magnetic field changes over time, because as magma from the mantle rises to the crust it cools but the basalt will align to the field it cools to. It is also found that on either side of mid oceanic ridges there were symmetrical magnetic patterns, so suggesting that the ocean was created at the mid oceanic ridges and as new ocean floor cooled, it pushed the crust away. Both Hess and Vine and Drummond found evidence that is crucial to the explanation of how continental drift happened, and it is very important in the development of geologists understanding, however other people found evidence to support continental drift also. Dan McKenzie went on to further explain sea floor spreading, being able to explain why new crust was made at mid oceanic ridges.
Erosion is also another key factor that can affect the environment. Hurricanes generate strong winds which batter the coastline as well as storm surges which are associated with hurricanes. This wears away at cliff faces and shorelines and can deposit whole sections of beaches and destroy cliffs as far as 100m back. Sand is also picked up by the winds and hurled inland creating a sandpaper effect on anything in its path and large amounts of sand are also deposited inland having an effect on the beach. The long term effects of this are that the shoreline then
Explain the cause of sea level change and the formation of resultant coastal landforms. (15) There are a number of factors that contribute to long and short-term variations in sea level. Short term variations generally occur on a daily basis and include waves, tides, or specific flood events, such as those associated with a winter snow melt, or hurricanes or other coastal storms. Long term variations in sea level occur over various time scales, from monthly to several years, and may be repeatable cycles, gradual trends, or intermittent anomalies. These long term variations in sea level can be caused by major glacial episodes, changes in the hydrological cycle, vertical land motion or even changes in the ocean and coastal circulation.
The associated air masses of storms within the British Isles are Polar maritime and Tropical maritime. As these two bodies of air move towards each other the warmer, less dense air from the south rises above the colder, dense air from the north. Circulations of low pressure then develop at points where the air is rising vigorously, this then coincides with waves in the polar front and jet stream. As a consequence there is much unsettled weather including heavy rain, strong winds and a variety of stormy cumulus clouds form; all of which can have devastating impacts socio-economically for an area as well as on the environment. The storm of 1987 occurred on the 15th and 16th of October due to a depression forming within the Bay of Biscay and had disastrous effects on the south and south-east of the UK.
Refraction occurs when waves change speed when changing media. Diffraction occurs when waves bend around a barrier. 81. ANS: At the node, destructive interference takes place. At the crest (antinode), constructive interference takes place.
The tide is high Happisburgh Coastal erosion happisburugh Coastal erosion is when the water and/or wind carry out sediments of land; sediment is rocks, dirt and earth. It happens mostly on beaches and shorelines because they had no vegetation or plants to be a natural protection against the water. People believe that it is just the water that erodes the coast, but both the water and wind are main factors that constantly change the boundary between the land and water. The beach can be affected severely or lightly depending on the lunar tides and the difference in water density. Coastal erosion in Happisburgh Happisburgh is to the east of England and in 2001 had a population of 1,372 in 607 households.
The shallower an earthquake, the more damage to structures it causes, all else being equal. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. “When the epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently
The water cycle can really begin at any location of the Earth but if I were a water molecule I would start my Journey in the ocean. I love the ocean and most of the planets water is there as well. The sun is the source of heat for the ocean and gives the water the opportunity to turn into water vapor which move into the air with the wind currents and into the atmosphere. The vapor rises into the air where cooler temperatures cause it to condense into clouds. (http://water.