Where to find slope of tension vs moisture for different soil types?
Where to find slope of tension vs moisture for different soil types?
(OP)
Also looking for slope of Conductivity vs moisture content. Anybody know a journal paper or book?
Thanks
Thanks





RE: Where to find slope of tension vs moisture for different soil types?
RE: Where to find slope of tension vs moisture for different soil types?
I am running SWMM5 and two parameters I need are slope of these curves. I was able to find a couple of papers that have these curves for three different soil types but not all. So I wanted to know if anybody here knows where I can find these cyrves for all soil types.
RE: Where to find slope of tension vs moisture for different soil types?
RE: Where to find slope of tension vs moisture for different soil types?
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Published data is available for such curves. These are for specific soils. Have you tried W3 searches or contacted NRCS for these? You can also utilize one of several methodologies to estimate such curves based upon soil texture.
I am unclear as to why such is needed for SWMM5. I do not know where within SWMM5 that unsaturated hydraulic conductivity is utilized. That is what such curves provide.
If you are utilizing the Green-Ampt or Horton infiltration methods, suggested parameters for such are included in the context-sensitive help. These methods assume saturated plug flow.
You might look into UNSODA for unsaturated soil data (http://ars.usda.gov/Services/docs.htm?docid=8967).
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tsgrue: site engineering, stormwater
management, landscape design, ecosystem
rehabilitation, mathematical simulation
http://hhwq.blogspot.com
RE: Where to find slope of tension vs moisture for different soil types?
Thaks for the link, tsgrue. I will look into this software.