Local GIS/GPS specialist Lisa Arnold will introduce you to geographic information systems and demonstrate how to translate geographic information onto the web: * Why geographic location — "where" — matters * Options available for delivering maps on the web * Focus on ESRI's ArcGIS mapping software utilizing the ArcGIS API for Flex.

1. Web Mapping & The
Power of Where
Lisa Arnold
lisaarn@gmail.com
Twitter @lisaarn

2. About Me
GIS Analyst – Natural Heritage New Mexico,
Museum of Southwestern Biology, University of
New Mexico
Adjunct Instructor – Department of Geography,
University of New Mexico
Geographic information Spatial modeling
science Web mapping
Conservation GIS GPS

3. Have a little bite
http://ndnforum.com/blogs//index.php/2009/07/03/freedom-pass-it-on?blog=6

4. Geographic Information System
GIS is a computer-
based technology to
collect, integrate,
analyze, query, model
and visualize
geographic-oriented
data (like a visual
database)
Technology, Methodology, Profession, Business
Bolstad, P. (2008).

5. Answer Global and Local Questions
Location
– What is at …?
– What exists at a particular location?
Condition
– Where is it?
– Find location where certain conditions
are satisfied.
Trends
– What has changed since?
– Differences in an area over time.
Patterns
– What spatial patterns exist?
– Spatial relationships between
geographic data.
Modeling
– What if …?
– Predict cause and effects of new
scenarios.
Great examples of GIS in action here!

6. GIS Software
Desktop Professional Industry
– ArcGIS, ArcView – ESRI Leader
– Geomedia – Intergraph Corp. •Environmental Systems
– MapInfo – MapInfo Corp. Research Institute,
Inc.
– AutoCAD Map – AutoDesk Inc. •Founded in 1969
– Smallworld - GE •Used by 24,000 state
– Idrisi – Clark Labs and local governments
– MapPoint - Microsoft •Annual revenues of
– QGIS – open source $794 million
•20% of revenues
– GRASS – open source invested in Research &
Server Development each
year
– ArcGIS Server - ESRI
– MapServer – open source

7. Geospatial Revolution
http://geospatialrevolution.psu.edu/episod
e2/chapter3
Don’t miss these videos!

8. Web GIS Models
Fu, P. & Sun, J. (2011).

9. Web GIS Architecture
Fu, P. & Sun, J. (2011).

10. Application Components
Basemap
– Often cached services pre-created by server
Road map
Aerial imagery
Operational layers
– Dynamic data rendered by the browser
Real time weather
Disease locations
Tools
– Find an address
– Get directions
– Query or search

11. Geospatial Web Services
Application components are driven by
geospatial web services
– Web service is a method of communication
– Programming interface that can be accessed
by other applications

12. Fu, P. & Sun, J. (2011).

13. Service Functions
Map services
– Most basic: display, query, identify
Data services
– Edit, serve imagery, synchronize
Analytical services
– Geocode, route, proximity, buffer,
– Geoprocessing – custom analysis models

14. Service Standards
Open Geospatial Consortium
– WMS (Web Map Service)
– WFS (Web Feature Service)
– WCS (Web Coverage Service )
Other related standards
– KML (Keyhole Markup Language)
– GEORSS
– GML (Geography Markup Language)

15. REST Services
“With REST, everything is a URL”
– Communication type used between the web
service and the browser (client)
Using the ArcGIS Server Rest API to generate a map covering the
United States, asking the return to be a JPEG of 800 pixels by 500
pixels, the request is the following:
http://server.arcgisonline.com/ArcGIS/rest/services/ESRI_ShadedReli
ef_World_2D/MapServer/export?
bbox=-183.33, 15.20, -9.53, 74.08
&size=800, 500
&format=jpg
&dpi=96
&f=image
Fu, P. & Sun, J. (2011).

16. The Mashup
Bringing it all together
– Integrate diverse resources to create an
application
Use browser side API to represent web
services and handle user interaction
– API for JavaScript
– API for Flex
– API for Silverlight

17. ArcGIS Viewer for Flex

20. Demo: site process

21. Start right now!
ArcGIS.com
– Search for geospatial web services
– Create and share a mashup without
programming
ESRI’s Mapping for Everyone Site
– Create and share maps
– http://www.esri.com/mapping-for-
everyone/index.html

22. Book Recommendations
Fu, P. & Sun, J. (2011). Web Duvander, A. (2010). Map
GIS: Principles and Scripting 101. San Francisco,
Applications. Redlands, CA: CA: No Starch Press, Inc.
ESRI Press.

23. References
Bolstad, P. (2008). GIS Fundamentals: A first text on
geographic information systems. White Bear Lake, MN:
Eider Press.
Fu, P. & Sun, J. (2011). Web GIS: Principles and
Applications. Redlands, CA: ESRI Press.
http://www.gis.com/
http://www.esri.com/
http://www.arcgis.com/home/
http://help.arcgis.com/en/webapps/flexviewer/
http://help.arcgis.com/en/webapi/flex/index.html
http://www.esri.com/news/publications/index.html
http://www.esri.com/mapping-for-everyone/index.html
http://geospatialrevolution.psu.edu/

24. Thanks!
Tell me what you think
– http://spkr8.com/t/5549
– http://speakerrate.com/series/181-
webuquerque-2011
Lisa Arnold
lisaarn@gmail.com
Twitter @lisaarn