1. Finding Geospatial Data A closer look at several useful sources of free geospatial data René Duplain (rene.duplain@uottawa.ca), Data Analyst, GSGrene.duplain@uottawa.ca Pierre Leblanc (pierre.leblanc@uottawa.ca), Cartographic and GIS Support Specialist, GSGpierre.leblanc@uottawa.ca

2. Introductions

3. Workshop outline ●Intro to geospatial data ●Explore various data portals o Scholars GeoPortal  Hands-on Tutorial o Geogratis  Video o Open Data Ottawa o GSG Libguide o Other sources ●Mapping geospatial data with sample datasets ●Complete evaluation form

5. Intro to geospatial data Common questions: ●What is geospatial data? ●What are the most useful sources of free geospatial data available? ●How do I navigate these portals? ●What is metadata and why is it important? ●Where do I start my data search for my next project?

6. Geospatial data can take many forms... Excel table Shapefile DBF JPG BMP Google Earth KML AutoCAD File Geodatabase MicroStation Design DEM ERDAS IMAGINE Adobe Geospatial PDF GEORSS Esri Grid TIFF GIF SRTM XML … and more! Geospatial Data

7. Our definition ●“Geospatial data identifies and describes the geographic location of features and boundaries. Spatial data is usually stored as coordinates and topology and can be mapped. There are two types of geospatial data: vector and raster.” -https://biblio.uottawa.ca/en/find/geospatial-data-and-mapshttps://biblio.uottawa.ca/en/find/geospatial-data-and-maps

8. Vector data http://researchguides.library.yorku.ca/content.php?pid=245987&sid=2176375 http://webhelp.esri.com/arcgisserver/9.3/java/geodatabases/feat_c-1166806282.gif

9. Raster data http://researchguides.library.yorku.ca/content.php?pid=245987&sid=2176375 http://docs.qgis.org/2.2/en/_images/raster_dataset.png

10. “Layering” data http://www.tualatinoregon.gov/maps/other-gis-resources

11. Scholars GeoPortal http://geo1.scholarsportal.info/

12. Scholars GeoPortal - Tutorial

13. Geogratis http://geogratis.cgdi.gc.ca/geogratis/Home?lang=en

14. Open Data Ottawa http://ottawa.ca/en/mobile-apps-and-open-data/open-data-ottawa

15. GSG Website http://biblio.uottawa.ca/en/gsg-centre

16. Other useful sites ●geoOttawa o http://maps.ottawa.ca/geoottawa/ ●Open Data o http://open.canada.ca/en/maps/open-data-canada http://open.canada.ca/en/maps/open-data-canada ●USGS Earth Explorer o http://earthexplorer.usgs.gov/ http://earthexplorer.usgs.gov/ ●Natural Earth Data o http://www.naturalearthdata.com/downloads/ http://www.naturalearthdata.com/downloads/ ●OpenStreetMap o http://wiki.openstreetmap.org/wiki/Downloading_data http://wiki.openstreetmap.org/wiki/Downloading_data ●SEDAC o http://sedac.ciesin.columbia.edu/ http://sedac.ciesin.columbia.edu/

17. Mapping geospatial data ●Download data: http://gsg.uottawa.ca/geo/workshops/finding_geospatial _data/

18. Questions? Please complete evaluation form