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    Las Vegas Metropolitan Area Urban Sprawl Assessment Using Shannon's Entropy

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    MS-GIST_2022_Stuht.pdf
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    Description:
    MS-GIST Report
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    Author
    Stuht, Casey M
    Issue Date
    2022-05-03
    Keywords
    urban sprawl
    Shannon's Entropy
    urbanization
    Las Vegas
    morphology
    Advisor
    Mason, Jennifer
    
    Metadata
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    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Collection Information
    This item is part of the MS-GIST Master's Reports collection. For more information about items in this collection, please contact the UA Campus Repository at repository@u.library.arizona.edu.
    Abstract
    A population center’s growth, known as urbanization, can pressure delicate environments and place strain on a region’s natural resources. Remote sensing combined with Geographic Information Systems can analyze and map the phenomenon of urban sprawl. This study quantifies growth within the Las Vegas, Nevada urban boundary using the aforementioned tools and Shannon’s Entropy method for 2000 and 2020. Shannon’s Entropy measures urban morphology, calculating compactness and dispersion of binary categorization, in this case, ‘developed’ and ‘undeveloped’ land cover. Eighteen multi-ring buffers were placed around Las Vegas City Hall at 1-mile intervals and found entropy values of 1.10 and 1.15 respectively. In comparison for the same years mentioned, five multi-ring buffers were set around the study area’s three main highways at 1-mile intervals and found entropy values of .608 and .628 respectively. All entropy values using the multi-ring buffer method were > 50% of log(n) for each dataset, meaning that the ‘developed’ land cover spatial variable is evenly dispersed across the study area with compactness or clustering of the ‘developed’ class found within each buffer zone. Temporally, over the 20-year period, the dispersion of development continued, with an increase in entropy values. Further, a geographic quadrant assessment revealed that the greatest land cover change-over from ‘undeveloped’ to ‘developed’ occurred in the northwestern and southwestern portions of the study area. This exercise provides a framework for developing municipalities that seek a cost effective, accessible, and expeditious method to better recognize sprawl patterns with the aim of correcting inefficient land and resource management.
    Type
    Electronic Report
    text
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Geographic Information Systems Technology
    Degree Grantor
    University of Arizona
    Collections
    MS-GIST (Master's Reports)

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