global_sum_fld2d

INTERFACE:

   real(r8) function global_sum_fld2d(array, spval)

DESCRIPTION:

   Performs a global sum on an input 2d grid array

USES:

     use clm_varsur, only : area                 !km^2

ARGUMENTS:

     implicit none
     real(r8), intent(in) :: array(lsmlon,lsmlat) !W/m2, Kg/m2-s or N/m2
     real(r8), intent(in) :: spval                !points to not include in gl

REVISION HISTORY: