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Average Weather Conditions

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by

Katelynn Dorn

on 19 March 2015

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Transcript of Average Weather Conditions

26.1 Factors that Affect Climate
Ch. 26- Climate
climate
average temperature
temperature range
precipitation (describe at different times throughout the year)
Average Weather Conditions
depends on latitude, angle, and hours of daylight
equatorial regions- 12 hour days, 90 degree sunlight angle, 3-4 degree temp. range
larger latitudes- 8-16 hour days, cooler temps, temp. range is larger than 30 degrees
polar regions- daily temp. range is small but yearly temp. range is HUGE. Why?
Fig. 26-1 Avg. Sea Level Temp.
Solar Energy
Wind Patterns
land heats faster and to a higher temp.
water has a higher specific heat
avg. temps of land and water in same area vary
Heat Absorption & Release
rising moist air, low pressure- doldrums (equator)
dry, sinking, warming air (subtropical highs)
warm tropical air meets cold polar air (45-60 latitude)
cold, dry, polar, high-pressure air (above 60 degrees)
Ocean Currents
temp. of ocean currents influence air masses
Why doesn't Gulf Stream make East Coast extremely hot?
Seasonal Winds
heating land causes sea breezes in summer
heating ocean causes land breezes in winter
monsoons- India, E Asia, Australia, E Africa
Topography
altitude increase decreases temp.
mountains influence moisture content of air masses
foehn- warm dry wind on Alps
chinooks- Rocky Mountains
mistral- cold wind blowing from Alps to Mediterranean
bora- cold, Greece/Balkans to Adriatic Sea
El Nino
weakens trade winds
brings water to the coast instead of away from it
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