Hill Country Associates Pedernales River analysisTeam:

Kelly Blanton, Erica Tice, William Weldon, and Paul Starkel

2 Overview

Introduction

Data

Literature Review

Methods

Timeline

Budget

Final Deliverables

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

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

5Using 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.

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.

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

8

9

10 Timeline

JANUARY FEBRUARY S M T W T F S #### S M T W T F S

28 29 30 31 1 2 3 1 2 3 4 5 6 7 4 5 6 7 8 9 10 8 9 10 11 12 13 14

11 12 13 14 15 16 17 15 16 17 18 19 20 21 18 19 20 21 22 23 24 22 23 24 25 26 27 28 25 26 27 28 29 30 31 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14

MARCH APRIL S M T W T F S #### S M T W T F S

1 2 3 4 5 6 7 29 30 31 1 2 3 4 8 9 10 11 12 13 14 5 6 7 8 9 10 11

15 16 17 18 19 20 21 12 13 14 15 16 17 18 22 23 24 25 26 27 28 19 20 21 22 23 24 25 29 30 31 1 2 3 4 26 27 28 29 30 1 2 5 6 7 8 9 10 11 3 4 5 6 7 8 9

MAY

S M T W T F S ####

26 27 28 29 30 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6

Project research 9 Feb- 23 Mar and proposal

Final product 23 Apr- 8 May Assimilation

Data compilation 30 Mar- 22 Apr

Data Collection 27Jan- 6 Feb

11 Budget

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

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.