Geospatial Technologies

• In the EAST Lab

– GPS Technology– Intergraph GeoMedia GIS– ESRI GIS

. Most of you are familiar with GPS, right? So, GPS is really just a means to find out “where you are”, or, in the case of acquiring map data, “where you were”. In EAST, students primarily use GPS to gather map data that aren’t available from other sources, such as the Internet. What they do with the data after they gather it is really the key, and that is where GIS comes into play.

Here’s an example from Russellville High School, where students used GPS to add map features for their school to a digital aerial photograph.

In another example, also from Russellville, students took a GPS unit in a car and drove a new segment of road,

providing updated data for their street map.

Software in your Labs

• Intergraph:– Upgrade to GeoMedia Pro 5.1(request

upgrade at http://imgs.intergraph.com/education/edgrant.asp

– By grant: Transportation Manager– By grant: GeoMedia Terrain– By grant: GeoMedia Grid– By grant: GeoMedia WebMap Professional– By grant: OnDemand (PDA – WinCE)

• GeoMedia Pro lets you take data for a large area...

• …and easily create a map for a specific local area.

• More importantly, you can ask complex questions about your data:– Whose property would be affected by a

road-widening project? (using parcel data from a city or county).

– What’s the mean income of people living close to a river (or railroad, or highway…) vs. that of people that live further away? (using US Census data).

– Where are the structures that are most likely to be flooded? (using FEMA flood plain data, or NRCS soils data).

• Example….

• “Arkansas cities within 10 miles of major rivers, by population size.”

• Information about your map data can also be viewed and sorted in tables.

• Results can be imported to other programs, such as Microsoft Excel.

• The easiest way to learn a little about GeoMedia is to run through its tutorial.

• The GeoMedia tutorial….

• GeoMedia Professional is most useful for dealing with features that have definite edges, such as:– buildings and parcels– roads, pipelines, stream networks– political boundaries and associated data– any point-based data

Geographic Information Systems (GIS)

• GeoMedia also can map street addresses and latitude/longitude points.– Very easy to import data from tabular

databases that include either addresses or lat/long

– crime reports, earthquake locations, etc.

Geographic Information Systems (GIS)

Software in Your Lab

• ESRI:– Upgrade to full school licenses of ArcView 3.3

and extensions– By request: ArcGIS 8.2– By request: ArcPad (PDA – WinCE)– By request: ArcIMS (Web mapping)

ArcView 3.x Extensions• Spatial Analyst

www.esri.com

ArcView 3.x Extensions• Spatial Analyst

–Crime Hot-Spots

ArcView 3.x Extensions

• Network Analyst-

• Used to show distance and routes (in yellow) a hit and run suspect could have driven in a 30 minute time period.http://www.esri.com/news/thedistrict/index.html

ArcView 3.x Extensions• 3-D Analyst

Into three dimensions

Transform two dimensions

http://www.esri.com/news/thedistrict/index.html

ArcView 3.x Extensions• 3-D Analyst – Crime Scene Investigation, Washington DC

–http://www.esri.com/news/thedistrict/index.html