geog lec 2 - Lecture 2 Basic Concepts of Geography I...

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Lecture 2 Basic Concepts of Geography I. Geographic features A. Objects or places on (or near the earth’s surface) -mountain, river, forest -buildings B. Feature Dimensionality - all features are spacily 3 - dimensional - depends on scale II. Feature Concepts A. Location - absolute and relative systems ( independent of other features) Site - local attributes ( characteristics) Situation - characteristics in terms of other locations B. Distance and Direction Distance ( general concept) - any measure of what it takes to overcome the separation between two places (travel time) - isochrome = equal C. Scale ( Three Meanings) 1. Analysis Scale – relative size ( want the two to match) 2. Phenomenon Scale – feature that exists in relative size 3. Cartographic Scale
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- features represented on maps - scale bars represents fraction ( fraction larger = image smaller) - large scale map shows large area of earth and vice-versa - important detail on amount of implication – generalization III. Feature Distrbution Concepts ( sets of features) A. Density – number of points per unit area
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