CSIR (Council of Scientific & Industrial Research) Earth Sciences Physical Geography-Climatology Study Material (Page 13 of 56)

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Atmospheric Circulation: Longitudinal Circulation Features, Important High and Low Pressure Areas

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Longitudinal Circulation Features

Hadley, Ferrel, and Polar cells are latitudinal circulation features, which affect global heat transport across latitudes. They have to be combined with longitudinal circulation cells called zonal overturning circulation. Longitudinal circulation is due to differential heating of water and land. Water with higher specific heat capacity than land absorbs and releases more heat, but temperature change …

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Jet Streams: Formation of Jet Streams

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Jet streams are high-speed winds areas occurring at 7,600 to 15,200 m above earth mainly at troposphere՚s top and some at lower stratosphere. They are irregular, concentrated, meandering bands of geostrophic westerly winds flowing between middle latitudes (summer and winter ) in Northern and Southern Hemisphere. Many of them are known and most of them are related to weather and climate at earth՚s surface. They have varying course, speed, and altitude. Their average width is 100 m…

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