City of Austin Water Quality Master Planning - GIS Model

12/17/97

These materials may be used for study, research, and educational purposes only, and are intellectual property of the
Center for Research in Water Resources (CRWR) of The University of Texas at Austin, and the City of Austin.
All commercial rights reserved. Copyright 1997 Center for Research in Water Resources.


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Table of Contents

City of Austin Water Quality Master Planning - GIS Model

OVERVIEW

The Study Area

LOCATION MAP

LAND USE

WATERSHEDS

EDWARDS AQUIFER

BMP’S

CONTROL POINTS

DEM-Based Topographic Analysis

USGS 7.5’ QUADRANTS OF THE AUSTIN AREA

DIGITAL ELEVATION MODEL (DEM)

HYDROLOGIC (RASTER-)GIS FUNCTIONS

FLOW DIRECTION

FLOW ACCUMULATION

STREAM DEFINITION

STREAM SEGMENTATION

WATERSHED DELINEATION

BURNING-IN PROCESS

DELINEATED STREAMS OF THE AUSTIN AREA

DELINEATED WATERSHEDS OF THE AUSTIN AREA

LOCATION OF CONTROL POINTS

GIS-Based Hydrologic Analysis

VECTOR AND RASTER REPRESENTATIONS OF THE TERRAIN

IMPERVIOUS COVER VS. LAND USE

CURRENT IMPERVIOUS COVER

FUTURE IMPERVIOUS COVER

EQUATION FOR ESTIMATING ANNUAL LOADS

DIRECT RUNOFF COEFFICIENT VS. IMPERVIOUS COVER

DIRECT RUNOFF COEFFICIENT VS. IMPERVIOUS COVER

BASEFLOW COEFFICIENT VS. IMPERVIOUS COVER

EMC’S VS. IMPERVIOUS COVER

NH3 CONCENTRATION VS. IMPERVIOUS COVER

TSS CONCENTRATION VS. IMPERVIOUS COVER

EMC’S VS. IMPERVIOUS COVER

VOLUME OF WATER PRODUCED IN EACH CELL

MASS OF POLLUTANT PRODUCED IN EACH CELL

VOLUME OF WATER LOST FROM EACH CREEK CELL OF THE RECHARGE ZONE

FLOW LOST IN THE RECHARGE ZONE

FLOW / LOAD

FLOW CALIBRATION

FLOW CORRECTION COEFFICIENT

LOAD CALIBRATION

LAND-GENERATED POLLUTANT CONCENTRATION

CHANNEL EROSION

CONSTITUENTS THAT INVOLVE CHANNEL EROSION

Construction Load and BMP Effect

CONSTRUCTION LOAD

LOCATED BMP’S DEFINED BY LOAD REMOVAL

LOCATED BMP’S DEFINED BY REMOVAL EFFICIENCY

LOCATED BMP’S DEFINED BY REMOVAL EFFICIENCY

NON-LOCATED BMP’S

NON-LOCATED BMP’S

NON-LOCATED NON-DISCHARGE BMP’S

CONCLUSIONS

Author: Francisco Olivera

Email: folivera@mail.utexas.edu

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