Nov
19
2013

GIS

Paul Explaning to the Heritage Crew what GPS is: Paul Explaning to the Heritage Crew what GPS is and how it works.
Paul Explaning to the Heritage Crew what GPS is: Paul Explaning to the Heritage Crew what GPS is and how it works.Courtesy SMM
On November 15, the Heritage Crew got to talk with Paul from Flat Rock Geographics. Paul spoke about how GPS works, what GIS is, and how people use GIS and GPS. GPS stands for "Global Positioning System." GPS is a network of satellites, used to find a position on the Earth within 5-10 feet. GPS triangulates your location by using 3 or more satellites that it can "see" by sending a message to them and receiving a location. GPS is a big factor in GIS.

GIS stands for "Geographic Information System." GIS is a combination of GPS and LiDAR, which is an imaging process that takes a laser and scans the ground, timing how long it takes to reach the point where it left the emitter, like sonar does underwater, or radar in the air. Paul and his company used GIS to map the site that we went to this summer. Flat Rock (who is helping us manage our data from Sheffield) can scan the data from the LiDAR and remove things that we don't need, like birds, trees, and even buildings! LiDAR is incredibly accurate, and has even been used to map all the burial mounds in the entire state of Minnesota!

Post new comment

The content of this field is kept private and will not be shown publicly.
  • Allowed HTML tags: <a> <h3> <h4> <em> <i> <strong> <b> <span> <ul> <ol> <li> <blockquote> <object> <embed> <param> <sub> <sup>
  • Lines and paragraphs break automatically.
  • You may embed videos from the following providers vimeo, youtube. Just add the video URL to your textarea in the place where you would like the video to appear, i.e. http://www.youtube.com/watch?v=pw0jmvdh.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Images can be added to this post.

More information about formatting options