ERTH 2415 Lecture Notes - Lecture 18: Anticyclone, Alternative Hypothesis, Eastern Canada
27 Mar 2018
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Document Summary
Climate: meteorological elements and phenomena averaged over a long period of time for a region of the earth"s surface, meteorological elements: precipitations, temperature, humidity, etc, phenomena: hail, frost, fog, etc. Climate and weather: climate, long-term variations, 30 years, weather, short-term variation, a few days to a few years. Troposphere: most weather activity occurs in the troposphere, warmer air and higher pressure at the base, colder air and lower pressure at the top, tropopause: boundary between troposphere and stratosphere (8 - 18km) Movements of air: vertical movement: vertical movement of air from regions of high pressure at earth"s surface to regions of low pressure high in the atmosphere, air must overcome gravity, rising air looses energy and becomes cooler. Movements of air: horizontal movement: wind: horizontal movement of air from regions of high pressure to regions of low pressure, wind flows inward to fill low p region.
