1. Hill Country Associates Pedernales River analysis Team: Kelly Blanton, Erica Tice, William Weldon, and Paul Starkel

2. Overview  Introduction  Data  Literature Review  Methods  Timeline  Budget  Final Deliverables 2

3. Introduction  The Pedernales River Basin is an area of approximately 815,000 acres located in the central Texas Hill Country  The Pedernales river is prone to major fluctuation in water levels  Monitoring water quality and quantity is important  Irrigates agricultural and ranching land  Contributes 23% of flow into Lake Travis, a critical source of drinking water for Austin, Texas 3

4. Data  2014 USDA NAIP Imagery  National LULC Data Set (1992, 2001, 2006, 2011)  TNRIS  TPWD Ecological Systems Classification Project  Texas Water Development Board  Aerial imagery showing change  Shapefiles showing Land use and Land Cover (LULC) amounts across the area  Ecological Classification system similar to LULC classification 4

5. Using GIS to Detect Changes in Land Use Land Cover for Electrical transmission Line Sitting and Expansion Planning in Winona County, Minnesota, USA. By Charles U. Uzoukwu  Uzoukwu was able to detect LULC changes in percentage by calculating raster area of each category in 1991 and comparing it to 2001 data.  This way he was able to show the specific size of the change that had occurred in different types of land use.  Using percentage change in LULC he used the Cell Statistics Function and “CON” tool to isolate and display areas of change between 1991 and 2001. 5

6. Little River Watershed, Tennessee  Five main LULC classes were classified: water, commercial land, residential land, mixed forest, and agricultural land.  Images were taken at a two year interval from 1984-2010. Landsat images were used to observe LULC change.  Since the spatial resolution of Landsat TM/ETM+ images is 30 meters, each pixel of the image is mixed in nature, especially in transition boundaries among different LULC classes (Zhu and Li 2010).  This study showed that there was an increase in urban areas and forest, while a decrease in agriculture.  The urban growth was concurrent with a rise in population. The increase in forest land may be aligned to farmers seeking employment in the city and abandoning their farms.  Also, an increased conservation effort of the Great Smoky Mountains National Park to preserve forest land is attributed to forest growth. 6

7. Methods  Illustrate the percent change in land use and land cover over the years 1992, 2001, 2006, and 2011  a projection of current and future land use in the Pedernales area  Create a visualization of land use and land cover change over time with population data  Show effects of population growth over time by showing increase or decrease in amount of 16 land use classes  measure our pixel size and get a total land area of the different LULC classifications  Use cell statistics functions to show the actual areas where change has occurred between different years of data 7

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10. Timeline 10

11. Budget 11

12. Final Deliverables  Report detailing changes in Land use and Land cover in the Pedernales river basin  Analysis and predictions of population growth for the study area  Shapefiles showing land use patterns in the Pedernales river basin area  KMZ files for website access of analysis maps 12

13. Resources  Pedernales River Watershed: Brush Control Assessment and Feasibility Study. Austin, TX: Lower Colorado River Authority, 2000. 3-5. Pedernales River Watershed. Lower Colorado River Authority, 2000. Web. Feb. 2015.  Texas Water Symposium. "Challenges Facing The Pedernales Basin." Challenges Facing The Pedernales Basin. Texas Public Radio, 27 Mar. 2014. Web. 12 Feb. 2015.  Pedernales River Watershed: Brush Control Assessment and Feasibility Study. Austin, TX: Lower Colorado River Authority, 2000. 3-1, 3-4. Pedernales River Watershed. Lower Colorado River Authority, 2000. Web. Feb. 2015. 13