reach volume exceeding maximum lake storage

[chrimerss]

Hello,

I found that my simulated reach volumes at some reaches are larger than maximum lake storage. I guess it is more reasonable to control it below the storage. In my implementation, I modified section "#updating the storage" in lake_route.f90 by simply limiting the storage to min(RCHFLX_out(iens,segIndex)%REACH_VOL(1), RPARAM_in(segIndex)%D03_MaxStorage), but this is only applied when maxstorage is supplied and larger than 1 (1 basically means it does not follow this fill-spill scheme). As for remaining water, it should be added to downstream

Hope this makes sense. Thanks
Zhi