Introduction to Digital Mapping using ArcView 9.2

Shelly McCoy [email protected]

Workshop Topics

        What is GIS?

Data used in ArcView Performing basic operations in ArcView Looking at table data Symbolizing Making queries Making a layout Campus Resources

The amount of information you can get from a paper map or  Google Maps is limited

A geographic information system (GIS) is a computer-based tool for

mapping

and

analyzing

things that exist and events that happen on Earth.

Simply said:

Geographic » Information » System(?) » maps data digital A GIS links information to geographic location (connects the what to the where), allowing you to seek patterns and relationships that may not otherwise be apparent.

GIS uses more than just geographic data

:

Start with geographic data, such as a county Attribute data that has a relationship to this county can include:

    

mean monthly humidity average rainfall average feet of beach erosion per year population and demographics zip codes, census tracts, etc.

By mapping more than one county that has these attributes, a new map can be produced to show the comparison between the attribute data.

What GIS Can Do for You?

   Explore –see and interpret spatial relationships Analyze –create new information and find hidden patterns Present results: ready your maps for output

Importance of Layers

 

Proximity

• Finding what is near or within a distance from a certain location or feature e.g., all houses within 100 yards of a stream

Overlay

• Combining two layers to create new information e.g., habitat based on veg, elevation, and temp

A bit about data

Layers can be features or surfaces Polygons Lines Points Raster

Geographic Data

Descriptive Data

Chris Buhi Christian Carlson Chris McGuire Dale Loberger Donna Buccini Doug Ruppel Gary Waters Holly Williams Jim Wojcik Jo-Ann Brown Joe Rubisch Larry Young Lee Ross Marcia Austin Mary Jo Fraley Mike Dyer Mike Rhoades Mike Sweeney Paul Gallimore 1757 Millbrook Ln 1761 Millbrook Ln 1765 Millbrook Ln 1776 Millbrook Ln 1790 Millbrook Ln 1537 Sandberry Dr 1541 Sandberry Dr 1200 Yamasee Dr 990 Harrowfield Rd 1912 Millbrook Ln 1090 Overhill Dr 1109 Kings Canyon Dr 1605 Bosham Ln 1429 Quail Wood Dr 29226 29226 29226 29226 29226 29226 29226 29210 29226 29226 29112 29226 29226 29226 1432 Quail Wood Dr 1430 Quail Wood Dr 29226 29226 1332 Cameron Forest Dr 29173 1327 Red Hickory Ln 1429 Buckeye Ct 29173 29173 Y 2 Y 1 Y 2 N 6 Y 2 Y 1 Y 3 Y 4 N 1 N 2 Y 4 Y 3 Y 2 Y 2 Y 1 Y 3 Y 3 Y 2 Y 2

Geographic Information

N 6 Donna Buccini 1790 Millbrook Ln Y 2 Jo-Ann Bro 1912 Millbr Y 2 Christian Carlson 1761 Millbrook Ln Y 1 Chris McGuire 1765 Millbrook Ln Y

A digital map doesn’t have to have attributes if they are not needed though…

Sometimes a nice geographic map is enough.

For example…

       

Almost every major company and most states use GIS

Federal Agencies Chase Manhattan Sears Roebuck & Co.

Domino’s Pizza Realtor.com

Title offices Metropolitan Life Police and Fire Depts.

         Ace Hardware Gold’s Gym US Postal Service Minolta Corp.

Conectiv UPS AAA USA Today Associated Press (AP)

D a t a

Possibly the most important component of a GIS is the data. A GIS will integrate spatial data with other data resources, such as spreadsheets used by most organizations to organize and maintain their data, to manage spatial data.

Where do you get this data?

 GIS  Internet Mapping Services (IMS)  Internet  Colleagues  YOU provide it!

Data Formats in ArcGIS

         Shapefile Coverage Geodatabase ArcIMS Feature Services ArcIMS Map Services Geography Network Text files (.TXT) OLE DB tables PMF Rasters  ESRI® GRID     ERDAS Imagine (.IMG) Windows Bitmap (.BMP) ER Mapper (.ERS) Graphic Interchange Format, GIF (.GIF)      ADRG Image (.IMG) JPEG File Interchange Format, JIFF (.JPG) Portable Network Graphics (.PNG) LizardTech MrSID (.SID) Tagged Image File Format, TIFF (.TIF)

ArcView 9 has a three part interface:

 ArcCatalog – for navigating spatial data  ArcMap – for creating, viewing, querying, editing, composing, and publishing maps  ArcToolbox – powerful geoprocessing tools

UD GIS Resources

• Morris Library Digital Mapping Station • UD-GIS listserv • ESRI Virtual Campus – GIS Technology Courses • Labs: Graham Hall (10), Library (6), RDMS

Lab in Smith Hall.

• Contact Ben Mearns,

[email protected]

, if you are interested in getting a license; students must have a faculty member request on their behalf.

  I would like to acknowledge that some slides were taken from the following PowerPoint presentations: ESRI. Implementing a Successful GIS Program •

Ann Johnson, ajohnson@ esri .com

•

Milton Ospina , mospina @esri .

com Tina and John Callahan’s Introduction to ArcGIS workshops

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