GG101 Lecture Notes - Mesothermal, Microthermal, Thrust Stage

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26 Feb 2013
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Department
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GG Week 7 lecture 1
Cyclones
Cylones
o an enclosed area of low pressure with air circulation in a spiral or vortex
Wave Cyclone
o System of the mid and high latitudes, a moving vortex with warm and cold air
masses
o Importance
Development
Stationary Front
Cyclongenesis
stage where circulation around low pressure appears
Open stage
well developed cold and warm fronts
Occluded stage
Dissolving stage
mid latitude cyclones are weather makers
Tropical Cyclone
Tornado
Global Climate
chapter 10. summary boxes for tropical climates mesothermal climates, microthermal climates,
polar and highland climates, and arid and semiarid climates (desert climates)
Weather and Climate
o weather = day to day fluctuations in:
temperature
humidity
pressure
clouds
precipitation
wind
Climate
o the characteristic condition of the atmosphere near the surface, at a place or across
a region
o long term weather conditions at a location or a region
o characterize climate by computing long term means and ranges of the weather
elements
o "Normals":30 year period 1971-2000 , 1981-2010
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