a question about modelling with SSIIM
 

Hello all,
I think if I use bedrough file for the bed cells in my model in ssiim and also use f 16 and w 1 dataset,the roughness in f 16 will be used for wall roughness and strickler number in w1 will be used for initialization the water level.is it correct?
I have a problem now.
I have used the bedrough file and two roughnesses in this file for bedcells,but when I have seen the variable roughness in map in SSIIM,the values of roughnesses are different from the bedrough file.
please help me to solve this problem.
Thanks