da_calculate_grady_airsr.inc

1 subroutine da_calculate_grady_airsr(iv, re, jo_grad_y)
2 
3    !----------------------------------------------------------------------
4    ! Purpose: Applies obs inverse on AIRS 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_airsr")
16 
17    do n=1, iv%info(airsr)%nlocal
18       do k=1, iv%info(airsr)%levels(n)
19          if (iv%airsr(n)%t(k)%qc < obs_qc_pointer) re%airsr(n)%t(k) = 0.0
20          if (iv%airsr(n)%q(k)%qc < obs_qc_pointer) re%airsr(n)%q(k) = 0.0
21 
22          jo_grad_y%airsr(n)%t(k) = -re%airsr(n)%t(k) / (iv%airsr(n)%t(k)%error * iv%airsr(n)%t(k)%error)
23          jo_grad_y%airsr(n)%q(k) = -re%airsr(n)%q(k) / (iv%airsr(n)%q(k)%error * iv%airsr(n)%q(k)%error)
24        end do
25     end do
26    
27    if (trace_use_dull) call da_trace_exit("da_calculate_grady_airsr")
28 
29 end subroutine da_calculate_grady_airsr
30 
31