Friday, October 22, 2010

Monsoons

Yesterday, during Asia´s presentations, Alejandro explained the big influence of monsoon winds in the south and East of Asia. Here you have some more information about these periodic winds. Periodic winds blow in different directions depending on the season of the year. The reason for these different directions lies on the Earth´s revolution around the Sun movement. Here you have an animation where you can learn the process of formation of monsoon winds:


On the picture below you can observe that monsoons blow from the continent to the ocean in winter and on the other way around in summer. In winter the winds are cold and dry. In summer the winds are hot and wet and they produce abundant precipitation. Floods are frequent in the area affected by the monsoons.



On the second image you can oberve the effects the monsoons have caused in Pakistan this last summer. You can have an idea of the area flooded by observing the normal Indus´ river course and the overflowing produced by the torrential rainfall of the summer monsoon. The flood covered almost one third of the Pakistani territory.




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