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CdnGISProf
(Stranger )
05/16/11 11:32 AM
Re: Computing Grade of a slope [re: tomcon]Report this article as Inappropriate to us !!!Login to Reply

I would suspect inaccuracies in both the GPS locations and the elevation database.  The former is a function of the quality of the GPS reciever - recreational GPS is accurate to only 5 meters at the best.  Unfortunately, the only way to acquire accurate values is to rent a survey-grade (centimeter accuracy) GPS receiver (not cheap) and use its location & elevation data to calculate the slopes.


Sorry I cannot provide a better answer.


 






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*Computing Grade of a slope tomcon   04/29/11 12:34 PM
.*Re: Computing Grade of a slope CdnGISProf   05/16/11 11:32 AM
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