okansas.blogspot.com

okansas.blogspot.com
Occassional thoughts about orienteering

Sunday, January 22, 2006

Playing with the GPS

I spent some time exploring some new trails at Wyandotte Lake yesterday. I ran the new section of trails four times (out and back, twice). The image below shows the GPS track on the USGS map.

Overall, I'd say the track is pretty good. Actually, the track is quite a bit better than the USGS contours. This particular section of contours is not very well done (bad photogrametrist?). The shape of the hill at the top of the map bit is really screwy (e.g. that reentrant that runs NE under the spot where the GPS track doubles back on the north section of the map clip -- there isn't a reentrant there).

posted by Michael | 7:27 PM

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