c***********************************************************************

c include file: hh2o.inc

c***********************************************************************

c must include 'pwerm.inc'

c***********************************************************************

c global hydro variables (local to hydro submodel)

c***********************************************************************

c                    snow water content at the soil surface (mm)
      real snwc
c                    snow water content at the soil surface initial(mm)
      real snwci
c                    rate of snow melt (mm/day)
      real snmlt
c                    cumulative daily amount of water from precipitation,
c                    snow melt, and/or irrigation available at the soil
c                    surface for both infiltration and runoff (mm/day)
      real dh2o
c-----------------------------------------------------------------------
      common /sh2o/
     &       snwc, snwci, snmlt, dh2o