GIS in Environmental and Water Resources Engineering

GIS in Environmental and Water Resources Engineering

Research Progress Report Nov 20, 1998

Research Areas

• Texas data and water modeling: Hudgens, Mason, Davis Jonsdottir, Gu, Azagra, Niazi

• Environmental Risk Assessment: Hay-Wilson, Romanek, Kim

• Global runoff: Asante, Lear

• Nonpoint source pollution: Melancon, Osborne

• Flood hydrology and hydraulics: Ahrens, Bigelow, Perales, Tate

• Internet: Favazza,Wei

Research Areas







Brad Hudgens

Geospatial Data Development for Water Availability Modeling

Status• Sulphur : re-model w/ new CPs by Dec 2• Neches : have TNRCC review data, need CPs from F&N• Nueces : TNRCC working location review• Guadalupe : TNRCC wants DRG database• San Antonio :

• Prepro : working on network connectivity

• Water for Texas Conference : presentation by Nov 27

90m DEM limitations

David Mason

Geospatial Data Development for Water Availability Modeling

Building the River Network

• Objective is to create a single-line network

• Must remove open water features– use Query tool to select only R,S, and T streams

– use USGS open water centerlines to define a linear “transport path”

• Using Arcview, manually delineate necessary streams not represented by rf3

• Place an outlet point at each water right location using CRWR-Prepro

Digitizing Streams

Correct stream identified

Water Right location (red dot)

“The Holdup”

• The water right locations to be used as control points for the watershed delineation process must first be reviewed by TNRCC for accuracy.

Trinity River TMDL

Subtask on Network Analyst

Kim Davis

Tools Used

• ArcView Network Analyst– Routing– Tying Points to Network

• Avenue scripts developed by Zechuan Ye– Ties points to network within tolerance

– Accessory scripts for manual corrections

Prepared Stream Network

Add Points of Interest

SOLVING

Route Solution

AREAS

Current Work

• Problems Encountered– RF3– Avenue– Network Analyst

Future Work

• Finish method development for point data– Figure out code/script issues– Is it on a stream we have?

• Apply to the Trinity Basin

• Attribute Pollution Sources

Jona Finndis Jonsdottir

Geospatial Data for Total Maximum Daily Loads

Topographic Maps, DRGs

• Good to understand and correct the river network

• Can be added to the view using hot link

Hot Link• In Quads attribute table,

add a field with the file names of the DRGs

• Write an appropriate script• Activate the hot link in

Theme Properties

• Click on the cell where you want the topographic map

How to do this?

• But what is the best way to add the field with the file names to the attribute table?

• Does someone have a god idea?

New Tool Development for Water Modeling

Richard Gu

Problems need to be solved

• Calculate the drainage area of user-defined control points

• Build stream network relations

Create a user-defined input point theme

• The point coverage contains different type of point.

• The user can define the ID of the control points.

• The input ID will be unique.

Implementation: Addpnt_new.ave

• Script: Addpnt_new.ave.

• User interface:options={"Diversion point", "Stream gage"}

choise=msgbox.choiceasstring(options,"Choose the type of control point:","Select")

id_number=msgbox.input("Enter the ID number:","Input control point","0")

Calculate the user defined drainage area

• Grid solution:– Identified the “Stream gage” points from the input coverage.

– Make a multipoint object from the points identified.

– Extract the points from the Flow-Direction grid and make them NODATA.

– Run Flow-Accumulation.

• Implementation: NewFdrCreat.ave

Build up stream network relations

• Algorithm: get a multi-point coverage,

a line coverage;

check all the points of the point coverage

are on the stream arcs;

if(a point is not a node)then

{split the arc at this point;

make the point fnode of the downstream;

make the point tnode of the upstream};

1

2

33

44 56

6 67

7

77

88

8

1 1

Esteban Azagra

Surface Water Modeling

Rainfall runoff

GIS

HMS

RunHEC-PrePro

Comparison

TopographicHydrologic

Topologic

ParametersCalibration

Field Data

Progress Report: Surface-Subsurface Modeling

Shiva Niazi

Ann Dennis

November 20, 1998

Model Domain Defined by LBG Guyton

Model Domain

Texas.shpModel_basins.shpAquifer.shpCounties.shp

Standard Hydrologic Grid

Research Areas







Lesley Hay Wilson

Spatial Environmental Risk Assessment

Current Research Status• Revising draft dissertation proposal based on

comments from Dr. Charbeneau

• Objective is to develop the spatial risk assessment methodology with emphasis on application to large, complex sites

• Proposal defense scheduled for Dec 11th

• Beginning work on presentation for the defense

Other Activities• Completing paper for the 1999 CSIRO Remediation

Conference (team)• IGERT NSF proposal activities

– working with Dr. Katz on the “capstone” course outline

– preparing a Marcus Hook project summary • Participating in development of a work plan with Dr.

Loehr’s research team to implement environmentally acceptable endpoint studies at Marcus Hook

• Drafting paper abstract for EPA conference: “Environmental Problem Solving with GIS”

Andrew Romanek

Surface Representation of the Marcus Hook Refinery

Activities• Since last time:

– Seminar– ESP Poster– COC Transport Extension– Review of nearby facility data

• For next two weeks:– Hydrology project -> develop transient

recharge rate for GW model

COC Transport Extension

• 4 step extension to surface water model to characterize COC transport

• Conservative - no decay except from additional flow

• Compare to WQS

• Waiting on data - will complete by Jan. ‘99

Point Sources

Flow and Load Grids

Accumulated Flow and Load Grids

Predicted Concentration Grid

Load = Flow * Concentration

Spatial Analysis of Sources and Source Areas on Marcus

HookProgress report by Julie Kim

Friday, November 20, 1998

Lube Plant Area• Tanks• Historical Features

– ponds– storage tanks– process areas– storage areas– loading/unloading areas

• Former RCRA Features– EPA AOC’s

Lube Area Data Spreadsheet

• Fields from database– Coverage number

– Coverage ID

– Fcode

– Location ID

– Location label

– Environmental condition

– Reference

• New fields added– Materials stored

– Volume stored

– Time of operation

– Releases

– Data classification number

Data Classification

1-Specific release with volume and date or time

2-Anecdotal evidence describing release but no time or data specified; visual observation of standing oil or stained soils

3-Oily stains, discoloration or other evidence based on historical photos or reports

4-No releases identified; not a source feature

Spreadsheet With New Fields

Future Work

• Compare concentration data in spreadsheet with data in environmental database

• Look for patterns in releases• Edit info in Releases Field• Join data with attributes table in Arcview• Use releases with best info to see if they correlate

with data in environmental database• For #4 classification, look through historical reports

for more info

Research Areas







Global Runoff Routing

Kwabena Asante

Comparison of Old and New Delineations

Flow Length Zones for Each Watershed

Grid Cell Translation from High to Low Resolution

Mary LearNovember 20, 1998

Project Description

• Make a tool to translate fine resolution grids to any specified coarse resolution mesh

• Write the tool using Arc Macro Language (AML)

• GOAL: Identify downstream polygon in a new field in Value Attribute Table (VAT)

Sample Area

Niger River Basin2.3 million km^2

•Well studied area•Variety of climatic regions•Variety of rainfall values

Grid and Mesh

FINE RESOLUTION Flow Direction Grid 1km x 1km

COARSE RESOLUTION Fishnet (Polygons) 30km x 30km

Output - Method I

“Simple” Method• Eight Direction Output!• Cardinal Directions Preferred

Output - Method II

FLOW DIRECTION GRID 3 Directions out of 8 Pourpoint Method

Output - Method II

Inability to Choose Diagonal Directions

Puzzles to Solve

• Eight Pour-Point Direction

• Diagonal Directions

• Translating the output to Geographic Coordinates

Research Areas







Patrice Melancon

Pollutant Loading Model for Tillamook Bay

Patrice’s Progress to 20 Nov 1998

• Draft of Methodology Chapter has been turned in

• Requirements for metatdata are being reviewed; starting to look at MetaMaker

• Downloaded FDGC standard - printed and bound - available at CRWR

• Transferred all currrent final coverages and grids to Pacific

• Finalized hydrology and bactimodel project files

• Bactimodel.apr sent to ODEQ for ‘beta testing’ at their request

EMC Values

• Still looking for articles to support EMC values for general ag/cropland and for all baseflow values

• Have found several articles with values that may be of use for sediment part of model

Goals for Next Meeting - 11 Dec

• Draft of Intro/Background

• Draft of Results/Conclusions Chapter

• Finish metadata for all final data sets

• Finish literature search to support EMC values

• Decide how to handle sediment model

Katherine Osborne

Water Quality Master Planning for Austin

Review Steps Import DEMs using ArcInfo

Used ArcView after finding metadata for DEMs

Received Seamless DEMS from EROS

Add USGS Gauge pointsUsed points from Christine’s work

• Obtain stream file from City of Austin Delineate watersheds

• Submit these watersheds to COA Read Urban Model material

Ok, began reading.

Attend GIS class in CRP

Seamless 30m DEM

Difference between seamless and compiled 30m DEMs

Delineated watersheds using 10,000 cell threshold

Next Steps

• Decide on which DEMs to use.

• Submit delineated watersheds to COA.

• Read Urban Model material.

• Work with CAPCO data to develop more accurate watersheds.

Research Areas







Seth Ahrens

Flood Forecasting in Houston

Final Version of Model

Comparison of Gauge Areas (km2)

AllDLG

SomeDLG

NoDLG

Actual

Total 811 792 798 821

Katy 155 162 196 164

Bear 48 42 90 56

Langham 91 93 58 64

Airborne LIDAR Topographic Mapping System

• Developed by the Houston Advanced Research Center (HARC)

• Ten-foot DEM resolution

• Vertically accurate to within six inches

• Nearly all of Harris County complete

• Several other metro areas by 12/99

• 133 Mb per Quarter Quad Sheet

Example Data Set

Image Map from DOQQ DataAerial View of Addicks Reservoir

Click on blue dots to view pictures and text.

Ben Bigelow

Midwest Flood Frequency Analysis

Research Update

• Wrote two more chapters of research report• Writing Results and Conclusions for report• Gave presentation at interagency meeting in

St. Louis (USACE,FEMA,states, and many others)– GIS display capabilities– Relationship between discharge and area– very well received

Design Discharge Profile, Mississippi River

University of Texas at Austin

150000

200000

250000

300000

350000

400000

450000

0 50 100 150 200 250 300 350

Des Moines

Rock

Iowa-Cedar

Des Moines

1-day, 100-yr peak flow

Mean Daily Discharge (cfs)

Distance (miles)

Contribution ofDes Moines RiverAlone: 128,000 cfsTributary: 49,000 cfs

Jerry Perales

GIS-Based Infiltration Modeling

Tenkiller Watershed

Research Seann’s Thesis and Prior Work

• Research Seann’s Dissertation with focus on the Method section

• Research “A GIS Procedure for Merging NEXRAD Precipitation Data and Digital Elevation Models to Determine Rainfall-Runoff Modeling Parameters, CRWR Online Report 95-3, September 1995”.

Data Needed

• The STATSGO soil databases for Oklahoma and Arkansas have been downloaded

• The NEXRAD image needs to be converted to a cell mesh

• The DEM for the watershed is needed.

Eric Tate

Mapping Flood Water Surface Elevation

Recent Activities

• Interim research report for TxDOT

• Media interviews

• HEC-RAS 2.2: a better output solution?

• Finished background chapter of thesis

• Experimentation with City of Austin photogrammetry data to create TINs:

3D Terrain Modeling Example

Research Areas







David Favazza

Map-Based Modeling on the Internet

ESRI’s ArcExplorer• View maps via Internet and pan/zoom/querry as a

local user would with ArcView• Maps are currently being served from Ganges

using ESRI’s Internet Map Server for AE use• Advantages: More reliable than MapCafe; also

allows user to download user-specified portions of maps

• Downers: Requires user to download AE and run it locally - time intensive download; Not as powerful as MapObjects

Kevin Wei

Displaying Environmental Maps on the Internet

Overview of my research Project

Publishing database on the Internet

1. DataBase: Environmental Monitoring data (tabular format) in Pantex Facility. Six Chemicals.

Data processing: Using MS Access.

2. Evaluate different Internet GIS approaches. ArcView Internet Map Server(IMS) Map Object Internet Map Server(IMS) ArcExplore

which approach is more efficient and reliable.

Data Processing. Key field

Using Easting and Northing data to build up a point coverage. How to?

Using loc_cod as key field to associate attributes with GIS shape file.

Run Query in Access and import the query result into ArcView

Only 40 well’s geo information are given,so build up a query to pick up the data only from these 40 wells.

ArcView & Access

1. Set up ODBC driver, select mdb file.2. In Arcview, go to SQL connect, import database into ArcView.3. Go to View and Add event theme to build up a new theme using Easting and Northing data.4. Convert the new theme to a shape file.

So you have a shape file with the information you are interested in.

Next step:

Working on the Internet Map Servers.

Arcview IMS can directly serve ArcView project.MapObject IMS and ArcExplore are primarily working with ESRI shape files.

MapObjects and MOIMS 2.0

MapObjects is ESRI component software for adding mapping and GIS capabilities to Windowsapplications. The development environments can be VB, Visual C++…

MapObject IMS2.0 is IMS extension to MapObjects. It provides ready-to use software componentsthat enable you to run MapObjects applications and ArcExplore.aep file on the Internet.

In machine Rimac, Volta, Viper,we installed MOIMS2.0

Next time I ‘ll give more detailed information about MOIMS

Research Review

Next Research Progress Report

Friday Dec18, 1998, 2PM, ECJ 9.236

GIS in Environmental and Water Resources Engineering

Documents

network connectivity

type of control point

tnrcc review data

point coverage

diversion point

point datafigure

userdefined input point

different type of point