da_transform_xtoy_geoamv_adj.inc

1 subroutine da_transform_xtoy_geoamv_adj (iv, xp, jo_grad_y, jo_grad_x)
2 
3    !-------------------------------------------------------------------------
4    ! Purpose: X to Y Transpose operator for Geo. AMVs
5    !-------------------------------------------------------------------------
6 
7    implicit none
8 
9    type (ob_type), intent(in)    :: iv          ! obs. inc vector (o-b).
10    type (xpose_type), intent(in) :: xp          ! Domain decomposition vars.
11    type (y_type) , intent(in)    :: jo_grad_y   ! grad_y(jo)
12    type (x_type) , intent(inout) :: jo_grad_x   ! grad_x(jo)
13 
14    integer                       :: n, k     ! Loop counter.
15    integer                       :: i, j     ! Index dimension.
16    real                          :: dx, dxm  ! 
17    real                          :: dy, dym  !
18 
19    if (iv%num_geoamv > 0) then
20       do n=iv%ob_numb(iv%current_ob_time-1)%geoamv+1, iv%ob_numb(iv%current_ob_time)%geoamv
21 
22          k = iv % geoamv(n) % info % levels
23 
24          if (k < 1) cycle
25 
26          i = iv%geoamv(n)%loc%i
27          dy = iv%geoamv(n)%loc%dy
28          dym = iv%geoamv(n)%loc%dym
29          j = iv%geoamv(n)%loc%j
30          dx = iv%geoamv(n)%loc%dx
31          dxm = iv%geoamv(n)%loc%dxm
32 
33          call da_interp_lin_3d_adj(jo_grad_x % u, xp, i, j, dx, dy, dxm, dym, &
34                                    jo_grad_y%geoamv(n)%u, k, iv%geoamv(n)%zk, k)
35          call da_interp_lin_3d_adj(jo_grad_x % v, xp, i, j, dx, dy, dxm, dym, &
36                                    jo_grad_y%geoamv(n)%v, k, iv%geoamv(n)%zk, k)
37       end do
38    end if
39 
40 end subroutine da_transform_xtoy_geoamv_adj
41 
42