EARTHSS 21 Lecture Notes - Lecture 4: Cryosphere
20 Jul 2016
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Weather: ex. whether it"s raining or not climate: average weather over 30 years or more in a given place. Which news stories are talking about climate? all are talking about one particular year not talking about climate. Koeppen system vegetation is telling of climate can categorize places by climate (tropical, dry, mild, severe mid-latitude, polar, highland) Which climate zones will contain parts of the cryosphere and why: polar areas (polar or at the poles, areas with cold winters (severe mid-latitudes): further north, closer to the poles, highland regions. In the mid-latitudes: further north (severe) ocean currents determine if climate is mild or severe. Why are the poles cold? beam spreading here, illumination/energy is spread over a larger area less energy colder. Why do we experience seasons: earth is spherical. 2. the mechanics of earth"s orbit around the sun o revolution: (365 days) small influence on seasonal heating o o rotation: (24 hours) tilt (23. 5 )
