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12.3: Climate Zones and Biomes

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    12873
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    A climate zone results from the climate conditions of an area: its temperature, humidity, amount and type of precipitation, and the season. A climate zone is reflected in a region’s natural vegetation. Perceptive travelers can figure out which climate zone they are in by looking at the vegetation, even if the weather is unusual for the climate on that day.

    The major factors that influence climate determine the different climate zones. In general, the same type of climate zone will be found at similar latitudes and in similar positions on nearly all continents, both in the Northern and Southern Hemispheres. The one exception to this pattern is the climate zones called the continental climates, which are not found at higher latitudes in the Southern Hemisphere. This is because the Southern Hemisphere land masses are not wide enough to produce a continental climate.

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    The most common system used to classify climatic zones is the Köppen classification system. This system is based on the temperature, the amount of precipitation, and the times of year when precipitation occurs. Since climate determines the type of vegetation that grows in an area, vegetation is used as an indicator of climate type.

    World map of Koppen-Geiger climate classification. There are five broad categories: A-Tropical, B-Arid, C-Temperate, D-Cold, E-Polar. Each of these is broken down into smaller subcategories: Af, Am, Aw. BWh, BWk, BSh, BSk. Csa, Csb, Cwa, Cwb, Cwc, Cfa, Cfb, Cfc. Dsa,Dsb, Dsc, Dsd, Dwa, Dwb, Dwc, Dwd, Dfa, Dfb, Dfc, Dfd. ET, EF. The climates are largely striated: Tropical and Arid climates exist near the equator. Temperate and cold climates exist between the equator and the poles. Polar climates exist at the poles. There are a few notable exceptions, such as the arid climates in Australia and South Africa.
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    A climate type and its plants and animals make up a biome. The organisms of a biome share certain characteristics around the world, because their environment has similar advantages and challenges. The organisms have adapted to that environment in similar ways over time. For example, different species of cactus live on different continents, but they have adapted to the harsh desert in similar ways.

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    The Köppen classification system recognizes five major climate groups, each with a distinct capital letter A through E. Each lettered group is divided into subcategories. Some of these subcategories are forest (f), monsoon (m), and wet/dry (w) types, based on the amount of precipitation and season when that precipitation occurs.

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    • What is climate? - Met Office climate change guide. Authored by: Met Office - Weather. Located at: https://youtu.be/bjwmrg__ZVw. License: All Rights Reserved. License Terms: Standard YouTube License
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    12.3: Climate Zones and Biomes is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts.

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