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http://cgis.hbg.psu.edu/CGIS%20workshops/Intro%20to
%20GIS.ppt
Introduction to Geospatial Information Science
A one-day, hands-on workshop to introduce users to the basic concepts of GIS
This one-day, hands-on workshop introduces the basic concepts of geospatial information science (GIS). It will present fundamental geographic and cartographic principles that are the foundation of GIS and current state-of-the-art information technology tools that bring GIS to users’ desktops. The workshop will include hands-on use of ArcView 9.1 GIS software and various geospatial databases. Attendees will come away from the workshop with a general understanding of the science and technology behind GIS and a basic skill set for making maps with ArcView 9.1.
Time Topic/activity
08:30 - 09:00 Check-in
09:00 - 09:15 Introduction and overview of geospatial information science
09:15 - 09:30 Spatial representation: maps, coordinate systems, projections, scale
09:30 - 10:00 Spatial features: vectors (points/lines/polygons); rasters; attributes
10:00 - 10:20 Spatial topology: lines-nodes-segments; TIGER
10:20 - 10:30 Break
10:30 - 11:00 Introduction to GIS and ArcGIS 9 overview
11:00 - 12:00 ArcGIS 9: Basic skills and lab exercises
12:00 - 01:00 Lunch
01:00 - 02:20 ArcGIS 9 more basic skills and lab exercises
02:20 - 02:30 Break
02:30 - 04:00 ArcGIS 9 intermediate skills and lab exercises
04:00 - 04:30 Dismissal and open lab time
Geography
GEOSPATIAL INFORMATION SCIENCE
Cartography and Surveying
Photogrammetry
Remote Sensing
Geographic Information Systems (GIS)
Geocoding/geoprocessing
Global Positioning System (GPS)
IT Infrastructure and Human Resources
SPATIAL FEATURESVectors: points-lines-polygonsRastersAttributes
SPATIAL REPRESENTATIONMapsCoordinate systemsProjectionsScale
SPATIAL TOPOLOGYlines-nodes-segmentsTIGER
GEOSPATIAL FOUNDATION CONCEPTS
Spatial Representation
Maps USGS
Coordinate systems Dana
Projections Dana
The “Dana” websites linked on this slide were developed by Peter H. Dana, Department of Geography, University of Texas at Austin, 1995. These materials may be used for study, research, and education in not-for-profit applications. If you link to or cite these materials, please credit the author, Peter H. Dana, The Geographer's Craft Project, Department of Geography, The University of Colorado at Boulder. These materials may not be copied to or issued from another Web server without the author's express permission. Copyright © 1999 Peter H. Dana. All commercial rights are reserved.
Think of map scale the following way.If you have an 8.5’’ x 11” paper map…
Larger scale: (e.g. 1:50,000 or 1” = 0.789 miles) Shows less area and more detail
MAP SCALE
1:50,000 scale map of Harrisburg
Smaller scale: (e.g. 1:500,000 or 1” = 7.89 miles) Shows more area and less detail
Think of map scale the following way.If you have an 8.5’’ x 11” paper map…
Larger scale: (e.g. 1:50,000 or 1” = 0.789 miles) Shows less area and more detail
MAP SCALE
1:500,000 scale map of Harrisburg
Smaller scale: (e.g. 1:500,000 or 1” = 7.89 miles) Shows more area and less detail
Think of map scale the following way.If you have an 8.5’’ x 11” paper map…
Larger scale: (e.g. 1:50,000 or 1” = 0.789 miles) Shows less area and more detail
MAP SCALE
SPATIAL FEATURES Vectors (points-lines-polygons)Rasters
Attributes:Feature Feature class Attribute Point Water wells Depth to waterLine State roads Traffic volumePolygon Counties Total population
SPATIAL TOPOLOGY: lines-nodes-segments
13
2
4
5
AB
C
D
E
SPATIAL TOPOLOGY: lines-nodes-segments
13
2
4
5
AB
C
D
E
SPATIAL TOPOLOGY: lines-nodes-segments
1
3
2
4
5
AB
C
D
E
Seg “A”
Relational Database Tables
Record ID Street Fnode Tnode Lfadd Rfadd Ltadd Rtadd Lzip Rzip Seg-A Roosevelt Node-1 Node-2 100 101 198 199 17111 17112 Seg-B …. Seg-C …. Seg-D …. Seg-E ….
Segments
Nodes
Record ID Latitude Longitude . Node-1 41.90433 76.23594 Node-2 41.90567 76.23407 Node-3 …. …. Node-4 …. …. Node-5 …. ….
Join to Nodes
T IGER
OPOLOGICALLY
NTEGRATED
EOGRAPHIC
NCODING
EFERENCING
U.S. Census Bureau TIGER
GEOCODER
Source: U.S. Bureau of the Census. TIGER Line Files Technical Documentation
Let’s Fire up ArcGIS And Get to Work
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