da_calculate_grady_synop.inc

1 subroutine da_calculate_grady_synop(iv, re, jo_grad_y)
2 
3   !-------------------------------------------------------------------------
4   ! Purpose: Applies obs inverse on re-vector
5   !-------------------------------------------------------------------------
6 
7   implicit none
8 
9 
10   type (ob_type), intent(in)     :: iv          ! Innovation vector.
11   type (y_type),  intent(inout)  :: re          ! Residual vector.
12   type (y_type),  intent(inout)  :: jo_grad_y   ! Grad_y(Jo)
13 
14 
15   integer                      :: n
16 
17 
18   if (iv%num_synop > 0) then
19      do n=1, iv%num_synop
20         if (iv%synop(n)%u%qc < obs_qc_pointer) re%synop(n)%u = 0.0
21         if (iv%synop(n)%v%qc < obs_qc_pointer) re%synop(n)%v = 0.0
22         if (iv%synop(n)%t%qc < obs_qc_pointer) re%synop(n)%t = 0.0
23         if (iv%synop(n)%p%qc < obs_qc_pointer) re%synop(n)%p = 0.0
24         if (iv%synop(n)%q%qc < obs_qc_pointer) re%synop(n)%q = 0.0
25 
26         if (iv%synop(n)%u%qc < obs_qc_pointer) re%synop(n)%u = 0.0
27         if (iv%synop(n)%v%qc < obs_qc_pointer) re%synop(n)%v = 0.0
28         if (iv%synop(n)%t%qc < obs_qc_pointer) re%synop(n)%t = 0.0
29         if (iv%synop(n)%p%qc < obs_qc_pointer) re%synop(n)%p = 0.0
30         if (iv%synop(n)%q%qc < obs_qc_pointer) re%synop(n)%q = 0.0
31 
32         jo_grad_y%synop(n)%u = -re%synop(n)%u / &
33                                (iv%synop(n)%u%error * iv%synop(n)%u%error)
34         jo_grad_y%synop(n)%v = -re%synop(n)%v / &
35                                (iv%synop(n)%v%error * iv%synop(n)%v%error)
36         jo_grad_y%synop(n)%t = -re%synop(n)%t / &
37                                (iv%synop(n)%t%error * iv%synop(n)%t%error)
38         jo_grad_y%synop(n)%p = -re%synop(n)%p / &
39                                (iv%synop(n)%p%error * iv%synop(n)%p%error)
40         jo_grad_y%synop(n)%q = -re%synop(n)%q / &
41                                (iv%synop(n)%q%error * iv%synop(n)%q%error)
42      end do
43   end if
44      
45 end subroutine da_calculate_grady_synop
46 
47