[Invest-forum] Zhang Constant

[noreply at ecoinformatics.org]

Re: Zhang Constant

http://invest.ecoinformatics.org/discuss/tier-1-water-purification/738159431/987534113

    Thanks for replying so quickly Stacie! I understand that the Zhang
   constant is an input to the water yield model. My question is that the
   water yield model doesn't asks for the modeler to specify "Z." We
   never specify this number anywhere as it is not a component of the
   biophysical table for the water yield model (which we ran as part of
   the water purification model). Therefore I'm not sure what InVEST
   assumes absent an input for this constant. Is there a default
   assumption?