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The Impact of Urbanization In Austin Texas and Surrounding Counties

The Impact of Urbanization In Austin Texas and Surrounding Counties. An analysis of land use and development. Bryant Chambers University of Texas, Austin GIS in water resourcing Fall 2011. Objectives. Examine land use change for: Patterns of change How did change occur

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The Impact of Urbanization In Austin Texas and Surrounding Counties

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  1. The Impact of Urbanization In Austin Texas and Surrounding Counties An analysis of land use and development Bryant Chambers University of Texas, Austin GIS in water resourcing Fall 2011

  2. Objectives • Examine land use change for: • Patterns of change • How did change occur • Develop %impervious cover at the subwatershed level

  3. 2001

  4. 2006

  5. 01-06 Total Change • 2 digit value YX • Y is old value • X is new value • 4 digit value YYXX • Y is old value • X is new value

  6. How did things change? 2.119409% was inter-category change 0.0440% was intra-category change 92% of the intra-category change was an increase in developed impermeable land 22.55% of inter-category change was an increase in developed impermeable land Inter-category change

  7. How have urban centers developed? 2001 2006 1992 Combined Map of Development 1992, 2001, and 2006

  8. Remaining work • Identify percent impervious land cover in local subwatersheds • Identify subwatersheds with greater than 10% impervious cover • Identify which subwatersheds experienced largest increases over 14 year period

  9. Questions? Taken from xkcd.org by Randall Munroe 11/16/11

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