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Land Cover Mapping of a Housing Subdivision in Elk Grove, California

Land Cover Mapping of a Housing Subdivision in Elk Grove, California. Joanna Nishimura Fall 2012 Geography 342: Remote Sensing. Photo credit: www.rmacompanies.com. Study Site. Housing subdivision developed between 2002 and 2010 Southern region of city of Elk Grove 2959 Acres. Imagery.

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Land Cover Mapping of a Housing Subdivision in Elk Grove, California

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  1. Land Cover Mapping of a Housing Subdivision in Elk Grove, California Joanna Nishimura Fall 2012 Geography 342: Remote Sensing Photo credit: www.rmacompanies.com

  2. Study Site • Housing subdivision developed between 2002 and 2010 • Southern region of city of Elk Grove • 2959 Acres

  3. Imagery 2002 2011 • Downloaded from EarthExplorer • High resolution orthorectified aerial photography • 2-foot resolution • Classifications: urban, water, vegetation, shadow, bare earth

  4. Training sites in ArcGIS ArcGIS Interactive Supervised Classification ENVI Supervised Classification

  5. Results Excluding shadows: 14.9% impervious cover in 2002 to 55% impervious cover in 2011 Excluding shadows: 7.4% impervious cover in 2002 to 58% impervious cover in 2011

  6. ENVI 2002 ArcGIS 2002 ENVI 2011 ArcGIS 2011

  7. Results

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