slope of upslope area

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slope of upslope area	Tom Mueller	Mar 18, 2010
Re: slope of upslope area	William Huber	Mar 18, 2010
Re: slope of upslope area	Tom Mueller	Mar 18, 2010

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Subject	slope of upslope area
Author	Tom Mueller
Date	Mar 18, 2010
Message	I'm trying to calculate the average slope of upslope areas. The way I have done this is 1) calculate flow direction, 2) identify a grid point next to a stream and export it as a shape file, 3) use the watershed command to calculate the upslope area, 4) then multiply grid of 1's by slope, then calculate the average slope of the grid. Anyone know of a better way. Thanks, Tom
	Tom Mueller http://www.uky.edu/~mueller/

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Subject	Re: slope of upslope area
Author	William Huber
Date	Mar 18, 2010
Message	One way is to flowaccumulate the slope, flowaccumulate a constant unit grid, then divide the former by the latter.
	--Bill Huber Quantitative Decisions (http://www.quantdec.com ) More GIS Q&A at http://gis.stackexchange.com/q/3083/664

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Subject	Re: slope of upslope area
Author	Tom Mueller
Date	Mar 18, 2010
Message	Bill, Wow, I tried this....and it seams to be realistic. How the heck did you think of that. Your hired! Let me think this through a bit and see if this is right but I think it is. Best Tom
	Tom Mueller http://www.uky.edu/~mueller/