1. What is geospatial science? Updated: March 29, 2012
2. How are GPS satellites powered? Updated: October 31, 2011
3. If the GPS gives a position only at the antenna, how does a spray nozzle thirty feet away on the end of a boon know to turn on or off? Updated: May 13, 2011
4. What is GPS? Updated: May 13, 2011
5. What can a GPS calculate? Updated: May 13, 2011
6. Hello I am working on a mapping project. I have waypoints in a Garmin ex legend tracker. I have downloaded Garmin DNR to extract the waypoints to the computer. I am going to map this project through ArcView GIS. Are there any tips or guidelines you can offer me to get this project done correctly? Updated: October 27, 2010
7. My community is considering acquiring aerial photography. What are some things we need to consider? Updated: October 27, 2010
8. Where can I find free aerial imagery? Updated: October 26, 2010
9. What are some uses for GIS? Updated: September 27, 2010
10. What is the difference between land use and land cover? Updated: September 27, 2010
11. How can I obtain an aerial or satellite image for my area? Updated: September 27, 2010
12. How might a municipal conservation commission benefit from using a GIS? Updated: September 27, 2010
13. What are typical uses of a GIS for economic development in my area? Updated: September 19, 2010
14. I have a Garmin e-trex Vista handheld GPS. It comes preloaded with a base map, but that map does not have much detail. I would like to know if I can get shapefiles from public websites, load them into the DNR Garmin program and then upload them to my handheld so that my base map will show more detail. I am mainly interested in having my unit show more roads, lakes and streams. It would be nice to be able to take advantage of the free data that is available without having to purchase additional maps. Updated: December 17, 2009
15. Where do I find support for Google Earth issues? Updated: December 17, 2009
16. Is there any link which offers free download of aster imagery and how to calculate the area covered by the aster in a single scene Updated: December 03, 2009
17. What are some local applications of GIS? Updated: August 07, 2009
18. Where do I find data to start my municipal GIS? Updated: August 06, 2009
19. Why is it important to know the scale of the data I want to use? Updated: August 06, 2009
20. What is a pixel? Updated: August 06, 2009
21. What is a digital soil survey or SSURGO? Updated: August 06, 2009
22. Where can I get digital soils data for my county? Updated: August 06, 2009
23. Are free GIS software programs available on the Internet? Updated: August 06, 2009
24. What is a digital line graph or DLG? Updated: August 06, 2009
25. What is a DRG? Updated: August 06, 2009
26. What is a datum? Updated: August 06, 2009
27. What is GLONASS? Updated: August 06, 2009
28. What is Galileo? Updated: August 06, 2009
29. I have a digital soil map, how accurate are the boundaries between soil types? Updated: August 05, 2009
30. What does vegetation index mean in remote sensing technology? Updated: October 14, 2008

Didn't find what you were looking for? Try asking one of our Experts.