Climate Change - Climate Change MIE380: Ecological Systems...

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Climate Change IE380: MIE380: Ecological Systems Spring 2010 March 4, 2010
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Climate Defined The statistics (mean and variability ) of meteorological elements in a given region over long periods of time. Temperature Precipitation (rain, snow) Humidity Atmospheric pressure Wind Weather = the present condition of these same elements (≤ 2 weeks) 2
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Köppen climate classification 3
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Thornthwaite Climate Classification Soil water budget Portion of total precipitation used to nourish vegetation over a certain area Evapotranspiration average temperature average rainfall average vegetation type hyperhumid, humid, subhumid, subarid, semi-arid and arid microthermal, mesothermal, and megathermal 4
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Climate Records Instrumental temperature records Satellite temperature measurements Paleoclimatology 5
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Climate Change Defined A change in the state of the climate that can be identified (e.g. using statistical tests) by changes in the mean and/or the variability of its properties, and that persists for an extended period, typically decades or longer. It refers to any change in climate over time, whether due to natural variability or as a result of human activity (IPCC) 6
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Climate Change Defined Again A change of climate that is attributed directly or indirectly to human activity that alters the composition
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This note was uploaded on 07/24/2010 for the course MIE MIE380 taught by Professor Enright during the Spring '10 term at University of Toronto- Toronto.

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Climate Change - Climate Change MIE380: Ecological Systems...

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