da_calculate_grady_radar.inc

1 subroutine da_calculate_grady_radar(iv, re, jo_grad_y)
2 
3    !-------------------------------------------------------------------------
4    ! Purpose: Applies obs inverse on re-vector
5    !-------------------------------------------------------------------------
6 
7    implicit none
8 
9    type (iv_type), intent(in)     :: iv          ! Innovation vector.
10    type (y_type),  intent(inout)  :: re          ! Residual vector.
11    type (y_type),  intent(inout)  :: jo_grad_y   ! Grad_y(Jo)
12 
13    integer  :: n, k
14 
15    if (trace_use_dull) call da_trace_entry("da_calculate_grady_radar")
16 
17    do n=1, iv%info(radar)%nlocal
18       do k=1, iv%info(radar)%levels(n)
19          if (use_radar_rv) then
20             if (iv%radar(n)%rv(k)%qc < obs_qc_pointer) then
21                re%radar(n)%rv(k) = 0.0
22             end if
23 
24             jo_grad_y%radar(n)%rv(k) = -re%radar(n)%rv(k) / &
25                (iv%radar(n)%rv(k)%error * iv%radar(n)%rv(k)%error)
26          end if
27 
28          if (use_radar_rf) then
29             if (iv%radar(n)%rf(k)%qc < obs_qc_pointer) then
30                re%radar(n)%rf(k) = 0.0
31             end if
32             jo_grad_y%radar(n)%rf(k) = -re%radar(n)%rf(k) / &
33                 (iv%radar(n)%rf(k)%error * iv%radar(n)%rf(k)%error)
34          end if
35       end do
36    end do
37 
38    if (trace_use_dull) call da_trace_exit("da_calculate_grady_radar")
39 
40 end subroutine da_calculate_grady_radar
41 
42