[Invest-forum] Zhang Constant

[noreply at ecoinformatics.org]

Re: Zhang Constant

http://invest.ecoinformatics.org/discuss/tier-1-water-purification/738159431/371053726

    I see. Thanks! I believe we were relying on InVEST 1.004. I am
   documenting the water yield model for our run and would like to
   include all of the functional relationships within the model. Could
   you send the function that the model uses in the code to calculate Z
   so I can document that? Additionally, the equations provided in the
   1.004 Beta User's Guide for the water yield model (pg 77-78) do not
   describe how the root depth and soil depth variables are incorporated.
   I believe that they are combined with PAWC to estimate AWC (in mm),
   however the function is not provided. Could you also provide that
   functional relationship? Thanks again for your help! This discussion
   group is a great feature for model users! Best, Maura