And other virtual globes
Web maps and data visualization Many Eyes Gapminder World Freedom Atlas Worldmapper
Virtual globes Celestia World Wind ArcGIS Explorer
Google Earth for Environmental Managers <ul><li>Making place marks (points, line, polygons) </li></ul><ul><li>Image overla...
What is a GIS? <ul><li>An organised collection of  </li></ul><ul><ul><li>computer hardware,  </li></ul></ul><ul><ul><li>so...
Google Earth is NOT… <ul><li>…  a true GIS because it cannot… </li></ul><ul><ul><li>query </li></ul></ul><ul><ul><li>buffe...
Spatial accuracy and precision From  OgleEarth  blogger:  There is no stated accuracy, and accuracy varies. … Of course, G...
Scientific use of Google Earth
Do you still need your GIS skills? <ul><li>Spatial accuracy </li></ul><ul><li>Precision </li></ul><ul><li>Metadata </li></...
Google Earth demonstration gisatvassar.blogspot.com
Questions? Meg Stewart Email: stewart.meg@gmail.com Twitter: meg_stewart Skype: megstewart
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Google Earth and Geospatial Visualization

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Talk on Web 2.0 mapping technologies plus comparison with GIS technology. The link at the end goes to a Google Earth demonstration found on my blog.
http://gisatvassar.blogspot.com/2007/10/google-earth-lunchtime-demonstration.html

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Google Earth and Geospatial Visualization

  1. 1. And other virtual globes
  2. 2.
  3. 3. Web maps and data visualization Many Eyes Gapminder World Freedom Atlas Worldmapper
  4. 4. Virtual globes Celestia World Wind ArcGIS Explorer
  5. 5. Google Earth for Environmental Managers <ul><li>Making place marks (points, line, polygons) </li></ul><ul><li>Image overlays </li></ul><ul><li>Easy to share files (KML or KMZ) </li></ul><ul><li>Easy to use </li></ul><ul><li>Cross-platform </li></ul><ul><li>No overhead (it’s free!) </li></ul>
  6. 6. What is a GIS? <ul><li>An organised collection of </li></ul><ul><ul><li>computer hardware, </li></ul></ul><ul><ul><li>software, </li></ul></ul><ul><ul><li>geographic data, </li></ul></ul><ul><ul><li>procedures and </li></ul></ul><ul><ul><li>personnel </li></ul></ul><ul><li>Designed to efficiently capture , store , update , manipulate , analyze , and display all forms of </li></ul><ul><li>geographically referenced information. </li></ul>
  7. 7. Google Earth is NOT… <ul><li>… a true GIS because it cannot… </li></ul><ul><ul><li>query </li></ul></ul><ul><ul><li>buffer </li></ul></ul><ul><ul><li>clip </li></ul></ul><ul><ul><li>do quantitative analysis </li></ul></ul><ul><ul><li>do cartography </li></ul></ul>≠
  8. 8. Spatial accuracy and precision From OgleEarth blogger: There is no stated accuracy, and accuracy varies. … Of course, Google Earth is free, and good enough for most uses, and especially in the US and Europe the accuracy is high and errors negligible (< 4m)… From a Google Earth contact: Check out this Wikipedia page: http://en.wikipedia.org/wiki/Google_Earth#Resolution_and_accuracy
  9. 9.
  10. 10. Scientific use of Google Earth
  11. 11. Do you still need your GIS skills? <ul><li>Spatial accuracy </li></ul><ul><li>Precision </li></ul><ul><li>Metadata </li></ul><ul><li>Analyses across multiple layers </li></ul><ul><li>Cartography </li></ul>Absolutely
  12. 12. Google Earth demonstration gisatvassar.blogspot.com
  13. 13. Questions? Meg Stewart Email: stewart.meg@gmail.com Twitter: meg_stewart Skype: megstewart

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