Global Positioning Systems (GPS) are changing the way in which people gather data for GIS. Forest companies use them to capture the boundaries of clear cuts, municipalities use them to gather locations of manholes, gutters, stop lights, etc., utility companies use them to locate poles, transformers, etc., remote sensing specialists use them in obtaining training sites and for quality control, and hikers use them to keep track of trails. GPS has ‘democratized’ data gathering in a way that no other technology has. Given how important GPS has become with respect to GIS, it is important that you have some understanding of how the ‘global positioning system’ operates, and what some of the potential problem areas can be.<\/p>\n
\n<\/div>\n
Pocket GPS World: How does the Global Positioning System work?<\/a><\/p>\n Overheads: Lecture 12: Global Positioning Systems<\/a><\/strong><\/p>\n<\/div>\n There are many good pages on the net which describe Global Positioning Systems (GPS). Some of them provide fairly nontechnical introductions others provide more detailed technical discussions. Here is a link to a magazine that covers recent advances in GPS and other related technologies:\u00a0GPS World Magazine<\/a><\/p>\n \n<\/div>\nRecommended Readings<\/a><\/h3>
Video Clips<\/a><\/h3>