da_jo_and_grady_radar.inc

1 subroutine da_jo_and_grady_radar(iv, re, jo, jo_grad_y)
2 
3    !-----------------------------------------------------------------------
4    ! Purpose: TBD
5    !-----------------------------------------------------------------------
6 
7    implicit none
8 
9    type (ob_type), intent(in)   :: iv          ! Innovation vector.
10    type (y_type), intent(in)    :: re          ! Residual vector.
11    type (y_type), intent(inout) :: jo_grad_y   ! Grad_y(Jo)
12    type (jo_type),intent(inout) :: jo          ! Obs cost function.
13 
14    integer                      :: n, k
15 
16    jo % Radar_rv = 0.0
17    jo % Radar_rf = 0.0
18 
19    if (iv%num_Radar < 0) return
20    
21    do n=1, iv%num_Radar
22       do k=1, iv%Radar(n)%info%levels
23          if (use_Radar_rv) then
24             jo_grad_y%Radar(n)%rv(k) = -re%Radar(n)%rv(k) / &
25                                     (iv%Radar(n)%rv(k)%error * &
26                                       iv%Radar(n)%rv(k)%error)
27          end if
28 
29          if (use_Radar_rf) then
30             jo_grad_y%Radar(n)%rf(k) = -re%Radar(n)%rf(k) / &
31                                     (iv%Radar(n)%rf(k)%error * &
32                                       iv%Radar(n)%rf(k)%error)
33          end if
34       end do
35 
36       if (iv%Radar(n)%loc%proc_domain) then
37          do k=1, iv%Radar(n)%info%levels
38             if (use_Radar_rv) then
39                jo % Radar_rv = jo % Radar_rv - &
40                          re%Radar(n)%rv(k) * jo_grad_y%Radar(n)%rv(k)
41             end if
42 
43             if (use_Radar_rf) then
44                jo % Radar_rf = jo % Radar_rf - &
45                          re%Radar(n)%rf(k) * jo_grad_y%Radar(n)%rf(k)
46             end if
47          end do
48       end if
49    end do
50       
51    jo % Radar_rv = 0.5 * jo % Radar_rv
52    jo % Radar_rf = 0.5 * jo % Radar_rf
53 
54 end subroutine da_jo_and_grady_radar
55 
56