CHAPTER 5. * Weather is daily changes in temp and precipitation. * CLIMATE is the average year to...
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Transcript of CHAPTER 5. * Weather is daily changes in temp and precipitation. * CLIMATE is the average year to...
![Page 1: CHAPTER 5. * Weather is daily changes in temp and precipitation. * CLIMATE is the average year to year conditions.](https://reader035.fdocuments.in/reader035/viewer/2022062321/56649dbf5503460f94ab40c7/html5/thumbnails/1.jpg)
CHAPTER 5
*CLIMATE CHANGE
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*CLIMATE
*Weather is daily changes in temp and precipitation.
*CLIMATE is the average year to year conditions.
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*CLIMATE
*TEMPERATURE
1.Latitude Location
2.Altitude
3.Distance from Water
4.Ocean Currents
*PRECIPITATION
1.Prevailing Winds
2.Mountains
3.Seasonal Winds
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*MARINE CLIMATES: Located near large bodies of water. Climate has mild winters and cool summers. Wind off the ocean prevents extreme changes in temp (mild climate).
*CONTINENTAL CLIMATES: Surrounded by land. Climate has cold winters and hot summers. More extreme changes in temp.
*DISTANCE from WATER
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*Which side is the WINDWARD and which is the LEEWARD?
*WINDWARD has lots of moisture (snow and rain) but little moisture is left when the air mass reaches the LEEWARD side.
*LEEWARD side is dry / less moisture.
*MOUNTAINS
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*TEMP Always above 18 C
*PRECIPITATION Lots of moisture
Year round / Wet and Dry seasons
*TROPICAL REGION
http://www.mathsisfun.com/measure/thermometer.html
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*TEMP: Can be cold or hot
*PRECIPIATION:Very, Very LOW precipitation
*DRY REGION
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*TEMP:Warmest is 10 C or above
Coldest is between -3 C and 18 C
Mild changes in temp
*PRECIPIATION:Humid and more rainfall in winter
*TEMPERATE MARINE REGION
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*TEMP: Warmest is 10 C or above
Coldest is -3 C or below
More extreme temps than marine
*TEMPERATE CONTINENTAL REGION
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*TEMP:In the warmest months temp is BELOW 10 C
*PRECIPITATION:Cold air contains little moisture
Relatively dry
*POLAR REGION
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MOVEMENT of CONTINENTS:
*location of land and ocean change
*Affects GLOBAL WIND and OCEAN CURRENTS – which changes global climate.
*NATURAL CAUSES OF CLIMATE CHANGE
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*ICE AGES: More elliptical orbit causes less sunlight to reach Earth – results in ice ages (100,000 yr cycles)
*VOLCANIC ACTIVITY:Release ash and aerosols into the atmosphere
Reflects sun rays causing cooler temps
*SOLAR ENERGY:Cause short term changes
Less solar energy can cause small ice ages*NATURAL CAUSES OF CLIMATE CHANGE
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*GREENHOUSE EFFECT
*Greenhouse gases (water vapor, CO2, methane) absorb/trap heat.
*This is a natural effect that helps insulate Earth and keep it warm.
*Increase in greenhouse gases cause and INCREASE in global temperatures.
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*EFFECTS OF GLOBAL WARMING
*Melting Glaciers and Rising Sea LevelsOver the last century glaciers have been melting worldwide
Antarctica ice sheet temp has risen 6 degrees
As ice sheets and glaciers melt, sea level rises
*Regional Temp ChangesChanges in regional climate
*Drought and DesertificationRising temps causes regions to warm and become very dry. This can lead to desertification and food shortage.
*Biosphere ChangesAs climate regions change, organisms are pushed to find new locations.
Adaptations and Extinctions