Jack Pincus- Assessment 2.docx

Jack Pincus- Assessment 2.docx - Jack Pincus Practical...

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Jack Pincus Practical Weeks 5-6: Monash Simple Climate Model 1) The lowered surface temperature is caused by the feedback effect of the clouds and is decreased by around 16 degrees. Clouds decrease surface temperature when put into perspective because they reflect the heat back into outer space. Without clouds, the Earth would experience warmer overall temperatures, because it will not have protection of the clouds in the sky. The ice albedo shows a lower surface temperature when the feedback of albedo is present (2-13 degrees). In the winter months of Australia from May-September, there is more of an effect of albedo. The increase in ice coverage in Australia is a factor that could cause more ice albedo. Ice coverage cools the Earths surface by reflecting the suns radiation back into the atmosphere, which is why there is a lower surface temperature when the positive feedback of ice albedo is present. The feedback from ice albedo and clouds both combine forces and have a very large cooling impact on the Earth. There is an overall combined cooling of about 35 degrees when both of the feedbacks are present. The ice acts as a secondary defence mechanism and reflects the sun that is able to make it through the clouds. During the Australian summer, the southern
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