I am studying the impact of wetlands on the water availability in one of the "large" watersheds in the US. Our model calibration (KGE -> 0.83) and validation (KGE -> 0.71) scores are good without including any parameters specific to the wetland. Do I need to include wetland parameters specifically for the study, or can we tweak the existing set of parameters to include wetland information in the model? If we need to include the range, please suggest the range of wetland parameters such as WET_NVOL, WET_MXVOL, or any other that could be useful.
I look forward to listening to your thoughts. I really appreciate any help you can provide.