var/da/da_ships/da_jo_and_grady_ships.inc

   1 subroutine da_jo_and_grady_ships(iv, re, jo, jo_grad_y)
   2
   3    !-----------------------------------------------------------------------
   4    ! Purpose: TBD
   5    !-----------------------------------------------------------------------
   6
   7    implicit none
   8
   9    type (iv_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
  15
  16    if (trace_use_dull) call da_trace_entry("da_jo_and_grady_ships")
  17
  18    jo % ships_u = 0.0
  19    jo % ships_v = 0.0
  20    jo % ships_t = 0.0
  21    jo % ships_p = 0.0
  22    jo % ships_q = 0.0
  23
  24    do n=1, iv%info(ships)%nlocal
  25       jo_grad_y%ships(n)%u = -re%ships(n)%u / &
  26          (iv%ships(n)%u%error * iv%ships(n)%u%error)
  27       jo_grad_y%ships(n)%v = -re%ships(n)%v / &
  28          (iv%ships(n)%v%error * iv%ships(n)%v%error)
  29       jo_grad_y%ships(n)%t = -re%ships(n)%t / &
  30          (iv%ships(n)%t%error * iv%ships(n)%t%error)
  31       jo_grad_y%ships(n)%p = -re%ships(n)%p / &
  32          (iv%ships(n)%p%error * iv%ships(n)%p%error)
  33       jo_grad_y%ships(n)%q = -re%ships(n)%q / &
  34          (iv%ships(n)%q%error * iv%ships(n)%q%error)
  35
  36       if (iv%info(ships)%proc_domain(1,n)) then
  37          jo % ships_u = jo % ships_u - re%ships(n)%u * jo_grad_y%ships(n)%u
  38          jo % ships_v = jo % ships_v - re%ships(n)%v * jo_grad_y%ships(n)%v
  39          jo % ships_t = jo % ships_t - re%ships(n)%t * jo_grad_y%ships(n)%t
  40          jo % ships_p = jo % ships_p - re%ships(n)%p * jo_grad_y%ships(n)%p
  41          jo % ships_q = jo % ships_q - re%ships(n)%q * jo_grad_y%ships(n)%q
  42       end if
  43    end do
  44
  45    jo % ships_u = 0.5 * jo % ships_u
  46    jo % ships_v = 0.5 * jo % ships_v
  47    jo % ships_t = 0.5 * jo % ships_t
  48    jo % ships_p = 0.5 * jo % ships_p
  49    jo % ships_q = 0.5 * jo % ships_q
  50
  51    if (trace_use_dull) call da_trace_exit("da_jo_and_grady_ships")
  52
  53 end subroutine da_jo_and_grady_ships
  54
  55