CE 394

1
CE 394 GIS in Water Resources

• Rio Bravo Rio Grande
• Water Resources Simulation Exercise
• Jason Batchelor
• EWRE LBJ Joint Degree

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Rio Bravo Rio Grande

• Outline
• Background
• Purpose
• Model / Simulation Theory
• GIS Work
• Methods
• Results
• Future Work
• Questions

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Background

• Rio Bravo Rio Grande is entirely adjudicated
• Two treaties, 1906 1944, apportioned water
  between US Mexico
• Scope of this project is from Rio Conchos to
  Gulf 1944 Treaty states amount of water to US
  shall not be less, as an average amount in
  cycles of five consecutive years, than 350,000
  acre-feet annually.
• Dispute over Water Debt
• IBWC / CILA operate reserviors

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Geography Lesson

• Major Features
• Rio Bravo Rio Grande
• Reservoirs
• Rio Conchos
• Pecos River
• Rio Salado
• Border Cities

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Purpose

• Use GIS as an integrated graphic display in a
  watershed modeling exercise.
• In February 2002, the LBJ School of Public
  Affairs hosts a simulation exercise wherein, the
  United States and Mexico will examine water
  quantity and water quality issues along the Rio
  Bravo - Rio Grande. The exercise will utilize
  the OASIS water resources model to examine the
  operation of the river and reservoirs, as well as
  the decisions and interaction of the participants.

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Simulation Theory

• Purpose is to generate dialogue and new
  approaches to problem solving.
• Allows participants to make decisions and see the
  effects without repercussion.
• First time many participants will be in the same
  room.
• One month time steps, using historical
  meteorological and weather data to provide
  hydrological data.

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Model

• OASIS with OCLTM, Hydrologics, Inc. developed and
  written by Dan Sheer
• Models human behavior, rather than trying to
  maximize a system
• Rules vs Goals
• www.hydrologics.net

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GIS

• Three Levels of Production
• 1. Base map with OASIS schematic
• 2. Display time step results for Irrigation
  Districts
• 3. Fully developed Graphic User Interface

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Why GIS?

• OASIS, only outputs graphs tables

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GIS Base Map

• Contacted Miguel Pavon, at the Border Information
  Center at TNRIS
• Received shapefile of the basin
• Problems with the data

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GIS - Problems
Should be ovelapping
Undefined Projection for rgbasin.shp
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GIS Problem Solving
Now to create and add all of the necessary
data layers
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GIS OASIS Schematic
Excel .dbf table Latitude Longitude in
DD Display XY Event
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GIS Multi-Layers
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Future Work

• Irrigation Districts
• Graphical User Interface

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Acknowledgements

• Miguel Pavon, BIC at TNRIS
• Tanya Hoogerwerf
• Dr. Dan Sheer, Hydrologics
• Dr. David Maidment
• Dr. David Eaton, LBJ