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Earth Systems - Earth Systems Main purpose guide you...

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Earth Systems Main purpose – guide you through the understanding of everyday physical processes that we often take for granted Examples: seasons, tides, dune formation, rivers and floods, nor’easter Where are we on earth? Relate physical processes to life on earth, processes that occur where we live. Geography study… The variety of landscapes and processes within earth. o The reasons why they are different o Their spatial distribution In physical geography may relate to Landforms Soil Climate Water Minerals Interrelationships o Climate and vegetations o Rivers and precipitation o Mountains and plate tectonic Earth’s shape: oblate spheroid – the rotation that happens on earth causes it to be look like an oblate spheroid The geographic grid Grid system o Networking of intersecting lines Coordinate system o Parallel o Meridians Rotation axis= the only line of latitude that is a “great circle” Parallels: imaginary horizontal lines Equator: great circle parallel b/w poles Latitudes: distance measured north or south of the Equator – from 0 to 90 degrees N or S 7 latitudinal markers are most important – north pole, arctic circle, tropic of cancer, equator, tropic of Capricorn, Antarctic circle, south pole
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Meridians: imaginary vertical lines extending from pole to pole Prime Meridian: global reference line for east-west measurements Longitudes – distance measured east or west Latitudes on left hand side will be essential to find the relations between the earth and the sun.
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