[OSM-talk] GPS Accuracy under Forest Canopy

[Stephen Hope]

I've done some rain-forest hiking, and I've noticed similar results.
If you really want to see some wandering tracks, try hiking along the
base of some cliffs, in dense forest.

I have noticed that the errors do seems to be less the faster I'm
moving.  If I stand in one place for a while, the path can wander over
quite an area if there is dense cover.  If I walk fairly quickly, then
it still has errors, but not as large.  I think it must be finding
more open patches and correcting itself more often.

Stephen

2009/8/10 Mike N. <niceman at att.net>:
> I'm using netbook with  just your average $30 GPS dongle to collect data.
> Today I took a 5 mile out-and back hike under dense forest canopy.   The GPX
> traces for the same trail out and back are separated by as much as 100
> meters.
>
>   I didn't record PDOP information and such, but are there any solutions to
> record decent GPS traces on trails under forest canopy data collection other
> than a high end professional GPS datalogger?
>
>
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