Merge branch 'rivers' into rigid_lid

src/2d/bdy_2d.F90

@@ -388,16 +388,18 @@
             select case (bdy_2d_type(l))
                case (ZERO_GRADIENT,CLAMPED_VEL,FLATHER_VEL)
                   do j = wfj(n),wlj(n)
-                     z(i,j) = z(i+1,j)
+                     if ( az(i+1,j) .ne. 0 ) z(i,j) = z(i+1,j)
                   end do
                case (SOMMERFELD)
                   do j = wfj(n),wlj(n)
+                     if ( az(i+1,j) .ne. 0 ) then
                      cfl = sqrt(g*_HALF_*(D(i,j)+D(i+1,j)))*dtm/DXU
                      z(i,j) = (                                             &
                                 (_ONE_ - _TWO_*cfl*(_ONE_-theta))*z (i  ,j) &
                                +(_ONE_ + _TWO_*cfl*(_ONE_-theta))*zo(i+1,j) &
                                -(_ONE_ - _TWO_*cfl*theta        )*z (i+1,j) &
                               )/(_ONE_ + _TWO_*cfl*theta        )
+                     end if
                   end do
                case (CLAMPED_ELEV,CLAMPED)
                   do j = wfj(n),wlj(n)
@@ -407,13 +409,16 @@
                   end do
                case (FLATHER_ELEV)
                   do j = wfj(n),wlj(n)
+                     if ( az(i+1,j) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j)+D(i+1,j))
 !                    Note (KK): note approximation of sse at vel-time stage
-                     a = ramp*bdy_data(kl) &
-                         - _TWO_/sqrt(g*depth)*(U(i,j)-ramp*bdy_data_u(kl)*depth)
-                     z(i,j) = max(a,-H(i,j)+min_depth)
+                     a = _TWO_/sqrt(g*depth)*(U(i,j)-ramp*bdy_data_u(kl)*depth)
+                     else
+                     a = _ZERO_
+                     end if
+                     z(i,j) = max(ramp*bdy_data(kl)-a,-H(i,j)+min_depth)
                      k = k+1
                      kl = kl + 1
                   end do
@@ -427,16 +432,18 @@
             select case (bdy_2d_type(l))
                case (ZERO_GRADIENT,CLAMPED_VEL,FLATHER_VEL)
                   do i = nfi(n),nli(n)
-                     z(i,j) = z(i,j-1)
+                     if ( az(i,j-1) .ne. 0 ) z(i,j) = z(i,j-1)
                   end do
                case (SOMMERFELD)
                   do i = nfi(n),nli(n)
+                     if ( az(i,j-1) .ne. 0 ) then
                      cfl = sqrt(g*_HALF_*(D(i,j-1)+D(i,j)))*dtm/DYVJM1
                      z(i,j) = (                                             &
                                 (_ONE_ - _TWO_*cfl*(_ONE_-theta))*z (i,j  ) &
                                +(_ONE_ + _TWO_*cfl*(_ONE_-theta))*zo(i,j-1) &
                                -(_ONE_ - _TWO_*cfl*theta        )*z (i,j-1) &
                               )/(_ONE_ + _TWO_*cfl*theta        )
+                     end if
                   end do
                case (CLAMPED_ELEV,CLAMPED)
                   do i = nfi(n),nli(n)
@@ -446,13 +453,16 @@
                   end do
                case (FLATHER_ELEV)
                   do i = nfi(n),nli(n)
+                     if ( az(i,j-1) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j-1)+D(i,j))
 !                    Note (KK): note approximation of sse at vel-time stage
-                     a = ramp*bdy_data(kl) &
-                         + _TWO_/sqrt(g*depth)*(V(i,j-1)-ramp*bdy_data_v(kl)*depth)
-                     z(i,j) = max(a,-H(i,j)+min_depth)
+                     a = _TWO_/sqrt(g*depth)*(V(i,j-1)-ramp*bdy_data_v(kl)*depth)
+                     else
+                     a = _ZERO_
+                     end if
+                     z(i,j) = max(ramp*bdy_data(kl)+a,-H(i,j)+min_depth)
                      k = k+1
                      kl = kl + 1
                   end do
@@ -466,16 +476,18 @@
             select case (bdy_2d_type(l))
                case (ZERO_GRADIENT,CLAMPED_VEL,FLATHER_VEL)
                   do j = efj(n),elj(n)
-                     z(i,j) = z(i-1,j)
+                     if ( az(i-1,j) .ne. 0 ) z(i,j) = z(i-1,j)
                   end do
                case (SOMMERFELD)
                   do j = efj(n),elj(n)
+                     if ( az(i-1,j) .ne. 0 ) then
                      cfl = sqrt(g*_HALF_*(D(i-1,j)+D(i,j)))*dtm/DXUIM1
                      z(i,j) = (                                             &
                                 (_ONE_ - _TWO_*cfl*(_ONE_-theta))*z (i  ,j) &
                                +(_ONE_ + _TWO_*cfl*(_ONE_-theta))*zo(i-1,j) &
                                -(_ONE_ - _TWO_*cfl*theta        )*z (i-1,j) &
                               )/(_ONE_ + _TWO_*cfl*theta        )
+                     end if
                   end do
                case (CLAMPED_ELEV,CLAMPED)
                   do j = efj(n),elj(n)
@@ -485,13 +497,16 @@
                   end do
                case (FLATHER_ELEV)
                   do j = efj(n),elj(n)
+                     if ( az(i-1,j) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i-1,j)+D(i,j))
 !                    Note (KK): note approximation of sse at vel-time stage
-                     a = ramp*bdy_data(kl) &
-                         + _TWO_/sqrt(g*depth)*(U(i-1,j)-ramp*bdy_data_u(kl)*depth)
-                     z(i,j) = max(a,-H(i,j)+min_depth)
+                     a = _TWO_/sqrt(g*depth)*(U(i-1,j)-ramp*bdy_data_u(kl)*depth)
+                     else
+                     a = _ZERO_
+                     end if
+                     z(i,j) = max(ramp*bdy_data(kl)+a,-H(i,j)+min_depth)
                      k = k+1
                      kl = kl + 1
                   end do
@@ -505,16 +520,18 @@
             select case (bdy_2d_type(l))
                case (ZERO_GRADIENT,CLAMPED_VEL,FLATHER_VEL)
                   do i = sfi(n),sli(n)
-                     z(i,j) = z(i,j+1)
+                     if ( az(i,j+1) .ne. 0 ) z(i,j) = z(i,j+1)
                   end do
                case (SOMMERFELD)
                   do i = sfi(n),sli(n)
+                     if ( az(i,j+1) .ne. 0 ) then
                      cfl = sqrt(g*_HALF_*(D(i,j)+D(i,j+1)))*dtm/DYV
                      z(i,j) = (                                             &
                                 (_ONE_ - _TWO_*cfl*(_ONE_-theta))*z (i,j  ) &
                                +(_ONE_ + _TWO_*cfl*(_ONE_-theta))*zo(i,j+1) &
                                -(_ONE_ - _TWO_*cfl*theta        )*z (i,j+1) &
                               )/(_ONE_ + _TWO_*cfl*theta        )
+                     end if
                   end do
                case (CLAMPED_ELEV,CLAMPED)
                   do i = sfi(n),sli(n)
@@ -524,13 +541,16 @@
                   end do
                case (FLATHER_ELEV)
                   do i = sfi(n),sli(n)
+                     if ( az(i,j+1) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j)+D(i,j+1))
 !                    Note (KK): note approximation of sse at vel-time stage
-                     a = ramp*bdy_data(kl) &
-                         - _TWO_/sqrt(g*depth)*(V(i,j)-ramp*bdy_data_v(kl)*depth)
-                     z(i,j) = max(a,-H(i,j)+min_depth)
+                     a = _TWO_/sqrt(g*depth)*(V(i,j)-ramp*bdy_data_v(kl)*depth)
+                     else
+                     a = _ZERO_
+                     end if
+                     z(i,j) = max(ramp*bdy_data(kl)-a,-H(i,j)+min_depth)
                      k = k+1
                      kl = kl + 1
                   end do
@@ -625,21 +645,25 @@
             select case (bdy_2d_type(l))
                case (FLATHER_VEL)
                   do j = wfj(n),wlj(n)
+                     if ( az(i+1,j) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j)+D(i+1,j))
 !                    Note (KK): note approximation of sse at vel-time stage
                      U(i,j) = ramp*bdy_data_u(kl)*depth &
                               - _HALF_*sqrt(g*depth)*(z(i,j)-ramp*bdy_data(kl))
+                     end if
                      k = k+1
                      kl = kl + 1
                   end do
                case (CLAMPED_VEL,CLAMPED)
                   do j = wfj(n),wlj(n)
+                     if ( az(i+1,j) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j)+D(i+1,j))
                      U(i,j) = ramp*bdy_data_u(kl)*depth
+                     end if
                      k = k+1
                      kl = kl + 1
                   end do
@@ -654,21 +678,25 @@
             select case (bdy_2d_type(l))
                case (FLATHER_VEL)
                   do j = efj(n),elj(n)
+                     if ( az(i-1,j) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i-1,j)+D(i,j))
 !                    Note (KK): note approximation of sse at vel-time stage
                      U(i-1,j) = ramp*bdy_data_u(kl)*depth &
                                 + _HALF_*sqrt(g*depth)*(z(i,j)-ramp*bdy_data(kl))
+                     end if
                      k = k+1
                      kl = kl + 1
                   end do
                case (CLAMPED_VEL,CLAMPED)
                   do j = efj(n),elj(n)
+                     if ( az(i-1,j) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i-1,j)+D(i,j))
                      U(i-1,j) = ramp*bdy_data_u(kl)*depth
+                     end if
                      k = k+1
                      kl = kl + 1
                   end do
@@ -686,21 +714,25 @@
             select case (bdy_2d_type(l))
                case (FLATHER_VEL)
                   do i = nfi(n),nli(n)
+                     if ( az(i,j-1) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j-1)+D(i,j))
 !                    Note (KK): note approximation of sse at vel-time stage
                      V(i,j-1) = ramp*bdy_data_v(kl)*depth &
                                 + _HALF_*sqrt(g*depth)*(z(i,j)-ramp*bdy_data(kl))
+                     end if
                      k = k+1
                      kl = kl + 1
                   end do
                case (CLAMPED_VEL,CLAMPED)
                   do i = nfi(n),nli(n)
+                     if ( az(i,j-1) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j-1)+D(i,j))
                      V(i,j-1) = ramp*bdy_data_v(kl)*depth
+                     end if
                      k = k+1
                      kl = kl + 1
                   end do
@@ -715,21 +747,25 @@
             select case (bdy_2d_type(l))
                case (FLATHER_VEL)
                   do i = sfi(n),sli(n)
+                     if ( az(i,j+1) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j)+D(i,j+1))
 !                    Note (KK): note approximation of sse at vel-time stage
                      V(i,j) = ramp*bdy_data_v(kl)*depth &
                               - _HALF_*sqrt(g*depth)*(z(i,j)-ramp*bdy_data(kl))
+                     end if
                      k = k+1
                      kl = kl + 1
                   end do
                case (CLAMPED_VEL,CLAMPED)
                   do i = sfi(n),sli(n)
+                     if ( az(i,j+1) .ne. 0 ) then
 !                    Note (KK): approximate interface depths at vel-time stage
 !                               by spatial mean at last sse-time stage
                      depth = _HALF_*(D(i,j)+D(i,j+1))
                      V(i,j) = ramp*bdy_data_v(kl)*depth
+                     end if
                      k = k+1
                      kl = kl + 1
                   end do

src/2d/m2d.F90

@@ -162,7 +162,6 @@
    integer                   :: i,j
    integer                   :: elev_method=1
    REALTYPE                  :: elev_const=_ZERO_
-   integer,parameter :: rk = kind(_ONE_)
    character(LEN = PATH_MAX) :: elev_file='elev.nc'
    namelist /m2d/ &
           elev_method,elev_const,elev_file,                    &
@@ -415,8 +414,8 @@
 
 !     This is only needed for proper flexible output
       where (az .eq. 0)
-         z  = -9999.0d0
-         zo = -9999.0d0
+         z  = -9999._rk
+         zo = -9999._rk
       end where
 
       call depth_update(zo,z,D,Dvel,DU,DV)

src/2d/variables_2d.F90

@@ -22,6 +22,7 @@
    IMPLICIT NONE
 !
 ! !PUBLIC DATA MEMBERS:
+   integer, parameter                  :: rk = kind(_ONE_)
    REALTYPE                            :: dtm
    REALTYPE,dimension(:,:),pointer     :: zo,z
    logical                             :: do_numerical_analyses_2d=.false.
@@ -101,7 +102,6 @@
 !
 ! !LOCAL VARIABLES:
    integer                   :: rc
-   integer,parameter         :: rk = kind(_ONE_)
 !EOP
 !-------------------------------------------------------------------------
 !BOC
@@ -126,7 +126,7 @@
    break_stat = 0
 #endif
 
-   z  = -9999*_ONE_; zo =_ZERO_
+   z  = -9999._rk ; zo =_ZERO_
 
    U = _ZERO_; DU = _ZERO_; Uint = _ZERO_; UEx = _ZERO_
    V = _ZERO_; DV = _ZERO_; Vint = _ZERO_; VEx = _ZERO_
@@ -230,7 +230,6 @@
 !
 ! !LOCAL VARIABLES:
    logical :: used
-   integer,parameter :: rk = kind(_ONE_)
 !EOP
 !-----------------------------------------------------------------------
 !BOC

src/3d/m3d.F90

@@ -396,8 +396,8 @@
                num(i,j,:) = 1.e-15
                nuh(i,j,:) = 1.e-15
 #ifndef NO_BAROCLINIC
-               S(i,j,:)   = -9999.0
-               T(i,j,:)   = -9999.0
+               S(i,j,:)   = -9999._rk
+               T(i,j,:)   = -9999._rk
 #endif
             end if
          end do

src/3d/salinity.F90

@@ -19,7 +19,7 @@
    use domain, only: imin,jmin,imax,jmax,kmax,H,az,dry_z
 !KB   use get_field, only: get_3d_field
    use variables_2d, only: fwf_int
-   use variables_3d, only: S,hn,kmin
+   use variables_3d, only: rk,S,hn,kmin
    use meteo, only: metforcing,met_method,nudge_sss,sss
    use meteo, only: METEO_CONST,METEO_FROMFILE,METEO_FROMEXT
    use halo_zones, only: update_3d_halo,wait_halo,D_TAG,H_TAG
@@ -224,8 +224,8 @@
          stop 'init_salinity'
    end select
 
-   S(:,:,0) = -9999*_ONE_
-   forall(i=imin:imax,j=jmin:jmax, az(i,j).eq.0) S(i,j,:) = -9999*_ONE_
+   S(:,:,0) = -9999._rk
+   forall(i=imin:imax,j=jmin:jmax, az(i,j).eq.0) S(i,j,:) = -9999._rk
 
    call update_3d_halo(S,S,az,imin,jmin,imax,jmax,kmax,D_TAG)
    call wait_halo(D_TAG)

src/3d/temperature.F90

@@ -20,7 +20,7 @@
    use domain, only: imin,jmin,imax,kmax,jmax,H,az,dry_z
    use domain, only: ill,ihl,jll,jhl
    use domain, only: ilg,ihg,jlg,jhg
-   use variables_3d, only: T,rad,hn,kmin,A,g1,g2,heatflux_net
+   use variables_3d, only: rk,T,rad,hn,kmin,A,g1,g2,heatflux_net
    use meteo, only: metforcing,met_method,nudge_sst,sst
    use meteo, only: METEO_CONST,METEO_FROMFILE,METEO_FROMEXT
 !KB   use get_field, only: get_3d_field
@@ -303,8 +303,8 @@ end interface
          stop 'init_temperature'
    end select
 
-   T(:,:,0) = -9999*_ONE_
-   forall(i=imin:imax,j=jmin:jmax, az(i,j).eq.0) T(i,j,:) = -9999*_ONE_
+   T(:,:,0) = -9999._rk
+   forall(i=imin:imax,j=jmin:jmax, az(i,j).eq.0) T(i,j,:) = -9999._rk
 
    call update_3d_halo(T,T,az,imin,jmin,imax,jmax,kmax,D_TAG)
    call wait_halo(D_TAG)

src/3d/variables_3d.F90

@@ -115,6 +115,7 @@
    IMPLICIT NONE
 !
 ! !PUBLIC DATA MEMBERS:
+   integer, parameter                  :: rk = kind(_ONE_)
    REALTYPE                            :: dt,cnpar=0.9
    REALTYPE                            :: avmback=_ZERO_,avhback=_ZERO_
    logical                             :: do_numerical_analyses_3d=.false.
@@ -175,7 +176,6 @@
 !
 ! !LOCAL VARIABLES:
    integer                   :: rc
-   integer,parameter         :: rk = kind(_ONE_)
 !EOP
 !-------------------------------------------------------------------------
 !BOC
@@ -236,8 +236,8 @@
 #endif
 
 !  must be nonzero for gotm_fabm in case of calc_temp=F
-   g1 = -9999*_ONE_
-   g2 = -9999*_ONE_
+   g1 = -9999._rk
+   g2 = -9999._rk
 
 #ifdef DEBUG
    write(debug,*) 'Leaving init_variables_3d()'
@@ -367,7 +367,7 @@
 !  Original author(s): Karsten Bolding & Jorn Bruggeman
 !
 ! !LOCAL VARIABLES:
-   integer,parameter :: rk = kind(_ONE_)
+!
 !EOP
 !-----------------------------------------------------------------------
 !BOC

src/3d/vertical_coordinates.F90

@@ -171,9 +171,9 @@ stop
    ! calculate the z-coordinate of the cell centers
    ! references to mean sea level
    zc(:,:,0)=-H(:,:)
-   zc(:,:,1)=-H(:,:) + 0.5*hn(:,:,1)
+   zc(:,:,1)=-H(:,:) + _HALF_*hn(:,:,1)
    do k=2,kmax
-      zc(:,:,k)=zc(:,:,k-1)+0.5*(hn(:,:,k-1)+hn(:,:,k))
+      zc(:,:,k)=zc(:,:,k-1)+_HALF_*(hn(:,:,k-1)+hn(:,:,k))
    end do
 
 #ifdef SLICE_MODEL

src/getm/initialise.F90

@@ -372,6 +372,8 @@
       end if
    end if
 
+   call finalize_register_all_variables(runtype)
+
    if (.not. dryrun) then
       if (save_initial) then
       call output_manager_prepare_save(julianday, int(secondsofday), 0, int(MinN-1))

src/getm/register_all_variables.F90

@@ -11,6 +11,12 @@
 !
 ! !USES:
    use field_manager
+   use variables_2d, only: register_2d_variables
+   use variables_3d, only: register_3d_variables
+#ifdef _FABM_
+   use getm_fabm, only: register_fabm_variables
+#endif
+   use output_processing, only: register_processed_variables, finalize_register_processed_variables
    IMPLICIT NONE
 !
 !  default: all is private.
@@ -225,6 +231,7 @@
 #ifdef _FABM_
    call finalize_register_fabm_variables(fm)
 #endif
+   call finalize_register_processed_variables(fm)
 
    return
    end subroutine finalize_register_all_variables

src/ncdf/ncdf_meteo.F90

@@ -148,14 +148,8 @@
                          "dimensions do not match")
       end if
       il = ilg ; jl = jlg ; ih = ihg ; jh = jhg
-   else
-      il = 1 ; jl = 1 ; ih = iextr ; jh = jextr
    end if
 
-   start(1) = il; start(2) = jl;
-   edges(1) = ih-il+1; edges(2) = jh-jl+1;
-   edges(3) = 1
-
    allocate(beta(E2DFIELD),stat=err)
    if (err /= 0) &
        stop 'init_meteo_input_ncdf: Error allocating memory (beta)'
@@ -174,6 +168,7 @@
          call to_rotated_lat_lon(southpole,olon,olat,rlon,rlat,x)
          beta = x
       end if
+      il = 1 ; jl = 1 ; ih = iextr ; jh = jextr
    else
       if (met_lat(1) .gt. met_lat(2)) then
          LEVEL3 'Reverting lat-axis and setting grid_scan to 0'
@@ -228,8 +223,21 @@
          call getm_error("init_meteo_input_ncdf()", &
                           "Some interpolation coefficients are not valid")
       end if
+
+      il = minval(gridmap(:,:,1),mask=(gridmap(:,:,1).gt.0))
+      jl = minval(gridmap(:,:,2),mask=(gridmap(:,:,2).gt.0))
+      ih = min( maxval(gridmap(:,:,1))+1 , iextr )
+      jh = min( maxval(gridmap(:,:,2))+1 , jextr )
+
+      where( gridmap(:,:,1).gt.0 ) gridmap(:,:,1) = gridmap(:,:,1) - il + 1
+      where( gridmap(:,:,2).gt.0 ) gridmap(:,:,2) = gridmap(:,:,2) - jl + 1
+
    end if
 
+   start(1) = il; start(2) = jl;
+   edges(1) = ih-il+1; edges(2) = jh-jl+1;
+   edges(3) = 1
+
    allocate(d_airp(E2DFIELD),stat=rc)
    if (rc /= 0) stop 'init_meteo_input_ncdf: Error allocating memory (d_airp)'
    d_airp = -9999*_ONE_
@@ -846,7 +854,7 @@ STDERR 'grid_north_pole_longitude ',southpole(2)
 !
 ! !LOCAL VARIABLES:
    integer         :: i,j,err
-   REALTYPE,dimension(edges(1),edges(2)) :: wrk,wrk_dp
+   REALTYPE,dimension(edges(1),edges(2)) :: wrk!,wrk_dp
    REALTYPE        :: angle,uu,vv,sinconv,cosconv
 !EOP
 !-----------------------------------------------------------------------
@@ -866,8 +874,10 @@ STDERR 'grid_north_pole_longitude ',southpole(2)
          end if
       else
          !KBKwrk_dp = _ZERO_
-         call copy_var(grid_scan,wrk,wrk_dp)
-         call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,airp_input)
+         !call copy_var(grid_scan,wrk,wrk_dp)
+         !call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,airp_input)
+         call flip_var(wrk)
+         call do_grid_interpol(az,wrk,gridmap,ti,ui,airp_input)
       end if
    end if
 
@@ -881,8 +891,10 @@ STDERR 'grid_north_pole_longitude ',southpole(2)
             evap_input(ill:ihl,jll:jhl) = wrk
          end if
       else
-         call copy_var(grid_scan,wrk,wrk_dp)
-         call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,evap_input)
+         !call copy_var(grid_scan,wrk,wrk_dp)
+         !call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,evap_input)
+         call flip_var(wrk)
+         call do_grid_interpol(az,wrk,gridmap,ti,ui,evap_input)
       end if
       if (evap_factor .ne. _ONE_) then
          evap_input = evap_input * evap_factor
@@ -899,8 +911,10 @@ STDERR 'grid_north_pole_longitude ',southpole(2)
             precip_input(ill:ihl,jll:jhl) = wrk
          end if
       else
-         call copy_var(grid_scan,wrk,wrk_dp)
-         call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,precip_input)
+         !call copy_var(grid_scan,wrk,wrk_dp)
+         !call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,precip_input)
+         call flip_var(wrk)
+         call do_grid_interpol(az,wrk,gridmap,ti,ui,precip_input)
       end if
       if (precip_factor .ne. _ONE_) then
          precip_input = precip_input * precip_factor
@@ -920,8 +934,10 @@ STDERR 'grid_north_pole_longitude ',southpole(2)
          end if
       else
          !KBKwrk_dp = _ZERO_
-         call copy_var(grid_scan,wrk,wrk_dp)
-         call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,u10_input)
+         !call copy_var(grid_scan,wrk,wrk_dp)
+         !call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,u10_input)
+         call flip_var(wrk)
+         call do_grid_interpol(az,wrk,gridmap,ti,ui,u10_input)
       end if
    end if
 
@@ -936,8 +952,10 @@ STDERR 'grid_north_pole_longitude ',southpole(2)
          end if
       else
          !KBKwrk_dp = _ZERO_
-         call copy_var(grid_scan,wrk,wrk_dp)
-         call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,v10_input)
+         !call copy_var(grid_scan,wrk,wrk_dp)
+         !call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,v10_input)
+         call flip_var(wrk)
+         call do_grid_interpol(az,wrk,gridmap,ti,ui,v10_input)
       end if
    end if
 
@@ -976,8 +994,10 @@ STDERR 'grid_north_pole_longitude ',southpole(2)
          end if
       else
          !KBKwrk_dp = _ZERO_
-         call copy_var(grid_scan,wrk,wrk_dp)
-         call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,t2_input)
+         !call copy_var(grid_scan,wrk,wrk_dp)
+         !call do_grid_interpol(az,wrk_dp,gridmap,ti,ui,t2_input)
+         call flip_var(wrk)
+         call do_grid_interpol(az,wrk,gridmap,ti,ui,t2_input)
       end if
    end if
 
@@ -992,8 +1012,10 @@ STDERR 'grid_north_pole_longitude ',southpole(2)