!$Author$
!$Date$
!$Revision$
!$HeadURL$
!     This common block contains the variables representing the soil
!     surface properties for each subregion.

!     Parameter include files:  p1werm.inc

!     + + + VARIABLE DECLARATIONS + + +

      real             aszrgh(mnsub)
      real             aszrho(mnsub)
      real             asxrgw(mnsub)
      real             asxrgs(mnsub)
      real             asargo(mnsub)
      real             asxdks(mnsub)
      real             asxdkh(mnsub)
      real             as0rrk(mnsub)
      real             aslrrc(mnsub)
      real             aslrr(mnsub)
      real             aslrro(mnsub)

      common / s1sgeo /                                                 &
     &                 aszrgh, aszrho, asxrgw, asxrgs, asargo, asxdks,  &
     &                 asxdkh, as0rrk, aslrrc, aslrr, aslrro

!     + + + VARIABLE DEFINITIONS + + +

!     aszrgh - Ridge height (mm)
!     aszrho - original ridge height, after tillage, mm.

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the ridge height for each of
!              the subregions.

!     asxrgw - Ridge width (mm)

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the ridge width for each of
!              the subregions.

!     asxrgs - Ridge spacing (mm)

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the ridge spacing for each of
!              the subregions.

!     asargo - Ridge orientation (degrees)

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the orientation width for each
!              of the subregions.

!     asxdks - Dike spacing (mm)

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the dike spacing for each of
!              the subregions.

!     asxdkh - Dike Height (mm)

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the dike height for each of
!              the subregions.

!     as0rrk - Random roughness parameter K (shape)

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the random roughness shape
!              parameter (K) for each of  the subregions.

!     aslrrc - Random roughness parameter C (scale)

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the random roughness scale
!              parameter (C) for each of  the subregions.

!     aslrr - Allmaras random roughness parameter (mm) 
!     aslrro - original random roughness height, after tillage, mm

!              range values       min        max
!              ------------   ---------  ---------
!              fixed          fmin       fmax
!              typical        tmin       tmax
!              ------------   ---------  ---------

!            - This variable contains the Allmaras random roughness 
!              parameter for each of the subregions.

!     ------------------------------------------------------------------