The NASA environment remote sensing analysis facility (ERSAF) support for space shuttle earth observations |
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| Authors: | David R Helms Patricia A Jaklitch Mark A Chambers Victor S Whitehead |
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| Institution: | 1. Lockheed Engineering &2. Sciences Company , Houston, Texas, 77258, U.S.A.;3. Space Shuttle Earth Observations Office , NASA‐Johnson Space Center , Houston, Texas, 77058, U.S.A. |
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| Abstract: | Abstract A major concept in urban geography deals with determining the spheres of influence for urban centers. This paper describes an instructional module used in two different geography courses showing students how a model might be developed to measure spheres of influence for multiple urban centers within a given region. A geographic information system (GIS) is employed throughout the development of the model. This module is incorporated into a traditional undergraduate urban geography course and a beginning GIS course. The software packages used are MapViewer and Grapher. The region is the Mississippi Lowlands with five urban centers: New Orlenas, Memphis, Little Rock, Jackson, and Baton Rouge. Keywords: GIS, spheres of influence, MapViewer, urban geography. |
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| Keywords: | Buffalo Commons Geographic Information Systems Map Viewer Short‐Grass Region Great Plains |
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