Hosein,
It depends on the goals of the model effort. If eutrophication is being modeled, then the following constituents are usually required:
Dissolved Oxygen
Sediment compartment
Nutrients: PO4-P, NH3-N, NOx-N
Organic Matter compartments: LDOM, RDOM, LPOM, and RPOM (CBOD can be used also)
Phytoplankton (and/or epiphyton)
If only DO depletion downstream of a WTP is being modeled, then only a CBOD group and the zeroth order sediment compartment may be needed.
chris
Thank you for your help.
I have another problem
I have preprocessed and there are no error and warning.
But When running w2_cvf.exe,there are errors as following.
"forrtl: info(58) format syntax error at or near 0.00000 "
and
"forrtl: servere(62):syntax error in format, unit-5,
file internal formatted write or ENCODE "
How can I solve it?
Sincerely Yours
madadi
water quality
Thank you for your help.
W2 running Error