Geography 101, Week 2 Notes
Geography 101, Week 2 Notes Geog 101
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This 3 page Class Notes was uploaded by Jensine Bonner on Tuesday February 9, 2016. The Class Notes belongs to Geog 101 at Towson University taught by Henry L. Shupple in Summer 2015. Since its upload, it has received 25 views. For similar materials see Physical Geography in Geography at Towson University.
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Date Created: 02/09/16
Geography 101: Notes taken, interpreted, and formatted by: Jensine Bonner Week 2 of Notes (2/8-2/10/16) 2/ 8/16 There are (3) different ways to express degrees: 1. Fraction form: 20 ½ (degrees) N, 77 ½ (degrees) E 2. Decimal form: 20.5 (degrees) N, 75.5 (degrees) E 3. Time: 40 (degree symbol) 30’, 30 (degree symbol) 30’ - In this case the 30’ represents 30 minutes-half The International Dateline is…. - The line that marks the point where each day ends and a new day begins. - The line can be found in the middle of the Pacific Ocean, but it does not correspond with the 180 degree line that is there for political reasons. World Time Zones 50 time zones, each 15 latitudinal wide - When time zones were created, they were created so that they would accommodate each respective state/county that it would pass through Day Light Savings Time Originally created with farmers in mind so that farmers could have elongated hours to harvest their land ! Fun Fact! Arizona and Hawaii do not follow Day Light Savings Time. However, Native American reservations in Arizona do follow Day Light Savings. Directional Systems While there are many directional systems, Mariner’s Compass is one that is most common, as well as one that is most often used. Azimuthal System This system is used in Aviation Maps & Map Scales A cartographer often uses (3) methods of scale representation Definition: Scale representation of all or a portion of earth’s surface Map scale (definition): The index of the area that is being mapped 1. Graphic Scale 2. Stated Inch Scale 3. Representative Fraction - For this method, the units of measurement have to be the same- the same on both sides of the fraction ! Fun Fact! In the legend, it is common to see all (3) of these scales of representation of a map. ------------------------------------------------------------------------- 2/10/16 (Maps continued) 1. Large Scale Maps 2. Small Scale Maps - Show a lot of area- little detail (Ex. World Map) (3) Basic types of Maps - Planimetric shows… 2D information only, and it has no reference to altitude since it is not needed for this type of map (Ex. A Road map) An outline map is also considered a planimetric ma- all maps begin with a planimetric base - Thematic shows…. A theme or topic, and it can be considered best in presenting geological information (Ex. Maps that are color coordinated, with a legend that correspond to the color) - Topographic shows… 3D information, and altitudes, and it stems from topography. There are many ways to show 3D information 1. Raised relief 2. Colors 3. Contour lines (this is seen as the best way to portray altitude) Isoline A large farm of lines that connect point of equal value th - On topographic maps, values are only shown every 5 line Map Projections Surface features can be depicted in many ways, but one popular method is through projection. The surface features are projected onto the map surface, and the features are recorded. - However, there will always be some degree of distortion - Large area- great distortion - Small area- less distortion Polar Projection Makes some places appear to be larger than they actually are - Specifically the polar regions Goode’s projection This projection is very oddly shaped, but designed to project things in a specific way ! Important to know! In the 15000s Gerardus Mercator developed one of the 1 World Mapst End of Week 2 notes. I hope that they were helpful to you. Notes will be uploaded weekly, so be sure to come back again! Up Next: A study guide for the upcoming quiz. - Jensine
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