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Unformatted text preview: Earth Science Stuff He Mentioned in Lecture: El nino, La nina, Water Temperature in Pacific basin, current that regulates temperature, bluegreen Algae, mercury in fish... most comes from the burning of coal in china Foundations
Chapter 1 Elemental Geosystems (Earth's Four Spheres) Part 1: The Energy-Atmosphere System (atmosphere) Part 2: Water, Weather, and Climate Systems (hydrosphere) Part 3: Earth's Changing Landscape (Lithosphere) Part 4: Biogeogrpahy (Biosphere) All Interconnected! Parallels of latitude; Meridians of longitude (Geographical line system)
Bulge in the middle a little bit Latitude 0- 90 degrees North and South North Pole is 90 degrees (North pole is directly above the center of the earth) 49th parallel Equatorial Plane (half way... splits earth between Northern and Southern Hemisphere) "Angle of latitude" Longitude Greenwich, England (prime Meridian) Cuts the world into east and west hemispheres 0-180 degrees east and west 180 degrees... time date line or something like that "Angle of longitude" http://worldatlas.com/ aatlas/imageg.htm Earth Science Foundations Chapter 1, Earth Science North Pole 90 degrees N Lat Arctic Circle 66.5 degrees N Lat Tropic of Cancer 23.5 degrees N lat Equator 0 degrees Lat Tropic of Capricorn 23.5 degrees south Lat Antarctic Circle 66.5 degrees S Lat South Pole 90 degrees S Lat Time Zones At First evenly split between longitudes Now split irregularly Arizona does not use daylight savings time Maps Scale Verbal Linear Representative Fraction (For really big maps) Title Geophysical location Map Shape Map projection 7927 miles equatorial 7900 miles from pole to pole Accuracy must be compromised because the earth is round flat map made by Mercator Point of Tangency is the most accurate part of the map The difference between latitude should be 69 degrees... but on maps that gets distorted. On the real earth, the longitude lines get closer and closer together... but on maps they look straight and equally spaced. Flat maps good for traveling around the equator Imagined a source of light from the center of the earth projecting the shape of the continent Earth Science Foundations Chapter 1, Earth Science Conic Projection The point of tangency is 20 degrees N. Used as a reflection of North America Lambert True for both distance and direction, shape too Planer Projection Most accurate map Usually used to map the polar regions Touches one point on the map Circle routes for pilots Earth Science Foundations Chapter 1, Earth Science Interrupted projections Compromised projection Robinson Projection Cartographers are map makers. Precision tools are used.... Mountains are stippled and airbrushed... all done b hand Satellites can also help.... Very detailed and accurate Earth Science Foundations Chapter 1, Earth Science Geographic information system... merges existing data from different maps of the same area and puts them all together Earth Science Foundations Chapter 1, ...
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This note was uploaded on 08/18/2008 for the course GEOG 1710 taught by Professor Byers during the Spring '08 term at North Texas.
- Spring '08