da_transform_xtoy_polaramv_adj.inc

1 subroutine da_transform_xtoy_polaramv_adj (iv, xp, jo_grad_y, jo_grad_x)
2 
3    !-------------------------------------------------------------------------
4    ! Purpose: X to Y Transpose operator for Polar 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_polaramv > 0) then
20       ! xyh
21       !  do n=1, iv % num_polaramv
22       do n=iv%ob_numb(iv%current_ob_time-1)%polaramv + 1, &
23          iv%ob_numb(iv%current_ob_time)%polaramv
24 
25          k = iv % polaramv(n) % info % levels
26 
27          if (k < 1) cycle
28 
29          i = iv%polaramv(n)%loc%i
30          dy = iv%polaramv(n)%loc%dy
31          dym = iv%polaramv(n)%loc%dym
32          j = iv%polaramv(n)%loc%j
33          dx = iv%polaramv(n)%loc%dx
34          dxm = iv%polaramv(n)%loc%dxm
35 
36          call da_interp_lin_3d_adj(jo_grad_x % u, xp, i, j, dx, dy, dxm, dym, &
37             jo_grad_y%polaramv(n)%u, k, iv%polaramv(n)%zk, k)
38          call da_interp_lin_3d_adj(jo_grad_x % v, xp, i, j, dx, dy, dxm, dym, &
39             jo_grad_y%polaramv(n)%v, k, iv%polaramv(n)%zk, k)
40       end do
41    end if
42 
43 end subroutine da_transform_xtoy_polaramv_adj
44 
45