gis on a budget: simple applications for real world solutions marty scholl calaveras county...
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GIS On A Budget:Simple Applications for
Real World Solutions
Marty SchollMarty SchollCalaveras County Environmental HealthCalaveras County Environmental Health1010thth Annual LEA/CIWMB Conference Annual LEA/CIWMB Conference
October 2007October 2007
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Topics Covered
What is GIS
Tools of The Trade
Creating a Simple GIS Project
Field Viewing and Editing
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Geographic Information SystemGIS – What Is It?
Geographic information system (GIS)
data represents real world objects such
as roads, , land use, elevation, parcels, etc., parcels, etc.
with digital data, found in a local database
called attributes.
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Geographic Information System- GIS -
GIS links GIS links spatial information (location)spatial information (location)
with with descriptive information (attributes)descriptive information (attributes)and createsand creates a map (layer)a map (layer)
In GIS you can overlay these In GIS you can overlay these layers to create specific maps.layers to create specific maps.
For any point on these maps For any point on these maps all information stored as all information stored as attributes are available to seeattributes are available to see
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Geographic Information SystemWhat do we get?
GIS creates a map with the GIS creates a map with the spatial spatial information (location)information (location) in the selected layers. in the selected layers.
Using the “Information”- Using the “Information”- tool ( ) thetool ( ) the descriptive descriptive information (attributes)information (attributes) can be accessed.can be accessed.
Transfer Station #03 (1254 Main, 5 Transfer Station #03 (1254 Main, 5 container capacity, Thu-Mon 9-5, container capacity, Thu-Mon 9-5, incl. Haz.Mat.)incl. Haz.Mat.)
Main arteries within 500’: S. Main Main arteries within 500’: S. Main St., Church St.St., Church St.
Medium density residential (R3, 2.5 Medium density residential (R3, 2.5 persons/household, 7500 people)persons/household, 7500 people)
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Site assessment of illegal dump sites,
Facilities, etc.
Geographic Information System
What do we get?
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Visualization of Dump Sites
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Parcel information
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So How Do We Do It?
There are almost as many ways to There are almost as many ways to implement GIS, as there are options implement GIS, as there are options
within GIS. The sky’s the limit!within GIS. The sky’s the limit!
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Basic Tools of the Trade
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Basic Tools of the Trade
Computer or Laptop
GPS Unit
GIS Software
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ArcMap 9
ESRI GIS Software (Industry Standard)
Visit www.esri.com for online training seminars.
One user, costs $1,500/license (publishing extensions extra)
ArcReader
ArcPad
FREE GIS Viewer
Many users, costs $500/license
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Step One
Microsoft Access or SQL are the most common (ask your IT department for help)
Getting Started - Creating a GIS Project
From as simple as a spreadsheet to complex with multiple tables
Don’t let the creation of a spreadsheet stop you from using GIS
Load data into a database
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Microsoft Access database
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Step Two
Build a working shapefile in ArcView
Data set used by ESRI ArcView geographic software; represents a set of geographic features such as streets, notable locations, boundaries, etc;
Each object in a shapefile represents a single geographic feature and its attributes.
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The following 9 slides depict the ease of creating a working GIS Database
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Open ArcMap 9, click “Add Data” and select base layer or Boundary shp file
Step Two
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Congratulations, you have just loaded your first shp file!
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Steps Three-Seven
Create working shapefile, with site data
Example of layers and data in ArcView
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Click “Add Data” again,and select database.
Step Three
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Select table(s)
Step Four
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Step Five
Right click, “Display X,Y Coordinates”
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Here’s what it looks like
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Right mouse click, “Export data”
Step Six
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Delete layer
Step Seven
Exported data, ready for final step
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Final Steps – Field Data and Viewing Options
1. Save as a project in ArcMap for future editing,
2. Export shapefile to ArcPad and a mobile device,
3. Publish map layers for ArcReader using “Publisher” extension in ArcView - Perfect for field use when electronic GPS coordinates are
not essential
Visit www.esri.com for more information on editing options
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ArcPadArcPadMajor Pros
Low cost GIS software ($500)
Used on many handheld GPS devices
View real-time GPS Coordinates and log location with brief descriptions
Major Cons
Cannot pull data from table – Data must come from ArcMap
Not a stand alone product
Can only view data from one table
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Logging GPS Coordinates in ArcPad
X Marks the spot
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ArcReaderMajor Pros
FREE GIS viewing software
Can turn on and off layers
Can view multiple attributes of individual points
Can view changes made to mobile database
Major Cons
No real-time GPS
Must be published from ArcMap($$)
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A Published ArcReader Application (non-editable)
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Thank You
Questions will be taken at the end of the session