Hello ,teachers
I know that
TP = AlgaeRatio(P:C)*(CHC + CHG + CHD) + ROP + LOP + DOP + P4D
but I can’t find the parameter of AlgaeRatio(P:C) in the version of EFDC11.8
Hi XiaoMeng,
In EFDC, the Algal Phophorus-to-Carbon Ratio (APC) is not a constant but varies in both space and time with the concentration of PO4. During the simulation, the APC ratio will be updated in each time step based on the current value PO4 concentration. The formula to calculate APC ratio can be found in the EFDC+ theory document as:
The three parameters CP1, CP2, CP3 can be modified from the “Phosphorus Parameters” tab in “Nutrients” section as highlighted in yellow.
Sincerely,
Kien