Climate_veg

Climate_veg - Climate and. Climate is the statistical...

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Climate and…. Climate is the statistical summary of atmospheric variables over an extended period of time most commonly used
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…..vegetation. Tundra biome in Rocky Mountains National Park, CO
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Köppen Climate System There are many climate classification systems. They are often named after their inventor, and modified by others
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Af, Am, Aw, BWh, BWk, BS, Cfa, Cs, Cfb, D, ET, EF, H Köppen Climate System Midlatitude cold winter or Microthermal Midlatitude cool winter or Mesothermal Dry Tropical humid Polar Mt
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Climograph Remember that these are averaged monthly values. Temp is continuous, precip is discrete
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Are climate boundaries sharp? Are there locations in Cfa that are more like Dfb? Scale is important when mapping and classifying climate types. Ecotone-gradual transition zone between biomes
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Climate classification systems are models Idealizations/generalizations about the real world. Boundaries between climates not sharp but gradual Boundaries shift through time Many microclimates over a large area
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Climatic controls of vegetation 1. Latitude 2. Proximity to land and water (continentality and maritime effects) 3. Position relative to global pressure cells (ITCZ, STHP, midlatitude cyclones) 4. Rainshadow effect 5. Ocean currents 6. Altitude
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Position relative to global pressure cells
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Ocean currents Cold currents : west sides of continents Warm currents : east sides of continents
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Ocean currents Warm ocean currents : air above ocean is warm, moist and potentially unstable. Adjacent climates are warm and wet. Cold ocean currents : air above ocean is chilled and stabilized (cold air does not rise). Consequently, temp range is smaller, temps are lower, and there is less precipitation Example: Los Angeles,CA (34°N) Charleston,SC (32°N)
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Biome Biomes -a distinctive assemblage of plants that forms a regional ecological unit in response to climate. Usually named for dominant vegetation type. Major types ->
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Availability of water Temperature Rates of photosynthesis and respiration. If too cold or too hot these processes are inefficient. Photosynthesis: production and storage of carbohydrates – CO 2 + H 2 O + energy (from sunlight) ---> C 6 H 12 O 6(Glucose) + O 2 Respiration: breakdown of carbohydrates for energy . – C
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This document was uploaded on 11/04/2011 for the course GEO 2200 at FSU.

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Climate_veg - Climate and. Climate is the statistical...

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