Human Geography 1123 - 1.30.08

Human Geography 1123 - 1.30.08 - b. Noon occurs when the...

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Human Geography 1123 Dot Neely January 30, 2008 Concepts of Modern Geography, Part II 1. Review of Latitude and Longitude a. Both are based on the Cartesian Reference System b. Axes on a 3-D Cartesian graph include: i. Z axis – shows elevation ii. X axis – runs North and South iii. Y axis – runs East and West c. John Harrison i. Invented a portable clock without a pendulum which could keep accurate time on a ship ii. Made use of longitudinal lines d. Longitude Act of 1714 put longitude officially into use in mapping 2. The Prime Meridian a. 0 degrees latitude – runs through the Royal Observatory in London, England 3. The International Date Line a. Runs 180 degrees parallel to the Prime Meridian (opposite side of globe) b. Not a straight line because the USSR, and other countries who owned territories in the region, did not want their property broken into two different days. 4. Time Zones – “Local Solar Time” a. Time zones divide the world into standardized hourly time segments
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Unformatted text preview: b. Noon occurs when the sun is at its highest point in the sky i. Noon will be slightly different for every degree of longitude c. Earth is divided into 24 hours i. 360 degrees / 24 hours = 15 1. Each time zone is 1 hour or 15 degrees in longitude 5. Greenwich Mean Time vs. Local Solar Time a. Earth rotates to the east 6. Location Site and Situation a. Physical characteristics of a location Site i. Climate ii. Soils iii. Topography iv. Vegetation v. Hilltops vi. River crossings vii. Islands 1. historically important in town establishment viii. junctions 1. historically important for defense and trade ix. absolute distance from other places b. Physical characteristics of a location Situation i. Relationship of a place to another place ii. Change over time 1. technical advances in transport, communications iii. physical distance/relative distance 1. time vs. distance...
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