GEO 121 1st Edition Lecture 28 Outline of Last Lecture a Meaning of Each Letter i A ii B iii C iv D v E 1 F 2 M 3 S 4 W a b c d e f A B C D H K Outline of Current Lecture b Three Basic Climate Groups i Low latitude ii Mid latitude iii High latitude iv Highlands Current Lecture 1 Three basic climate groups a Three major climate groups show the dominance of special combinations of air mass source regions i Low latitude Climates These climates are controlled by equatorial a tropical air masses 1 Tropical Moist Climates 2 Wet Dry Climates 3 Dry Tropical Climate ii Mid latitude Climates Climates in this zone are affected by two different airmasses The tropical air masses are moving towards the poles and the polar airmasses are moving towards the equator These two air masses are in constant conflict Either air mass may dominate the area but neither has exclusive control These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 1 Dry Middle Latitude Steppe 2 Mediterranean Chaparral 3 Dry Middle Latitude Grasslands 4 Moist Continental Deciduous iii High latitude climates Polar and arctic air masses dominate these regions Canada and Siberia are two air mass sources which fall into this group A southern hemisphere counterpart to these continental centers does not exist Air masses of arctic origin meet polar continental air masses along the 60th and 70th parallels 1 Boreal Forest Taiga 2 Tundra iv Also Highlands but they don t fall under any category 1 Highland climates are cool to cold found in mountains and high plateaus Climates change rapidly on mountains becoming colder the higher the altitude gets The climate of a highland area is closely related to the climate of the surrounding biome The highlands have the same seasons and wet and dry periods as the biome they are in 2 Mountain climates are very important to midlatitude biomes They work as water storage areas Snow is kept back until spring and summer when it is released slowly as water through melting 3 Temperature Range 18 C to 10 C 2 F to 50 F 4 Average Annual Precipitation 23 cm 9 in 5 Latitude Range found all over the world 6 Global Position Rocky Mountain Range in North America the Andean mountain range in South America the Alps in Europe Mt Kilimanjaro in Africa the Himalayans in Tibet Mt Fuji in Japan
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