1 subroutine da_transform_xtoy_metar (grid, iv, y)
3 !-----------------------------------------------------------------------
5 ! Updated for Analysis on Arakawa-C grid
6 ! Author: Syed RH Rizvi, MMM/ESSL/NCAR, Date: 10/22/2008
7 !-----------------------------------------------------------------------
11 type (domain), intent(inout) :: grid
12 type (iv_type), intent(in) :: iv ! Innovation vector (O-B).
13 type (y_type), intent(inout) :: y ! y = h (grid%xa) (linear)
15 integer :: n ! Loop counter.
17 real, allocatable :: model_u(:,:)
18 real, allocatable :: model_v(:,:)
19 real, allocatable :: model_t(:,:)
20 real, allocatable :: model_q(:,:)
21 real, allocatable :: model_p(:)
23 real, allocatable :: ub(:,:)
24 real, allocatable :: vb(:,:)
26 if (trace_use_dull) call da_trace_entry("da_transform_xtoy_metar")
28 if (sfc_assi_options == sfc_assi_options_1) then
29 allocate (model_u(1,iv%info(metar)%n1:iv%info(metar)%n2))
30 allocate (model_v(1,iv%info(metar)%n1:iv%info(metar)%n2))
31 allocate (model_t(1,iv%info(metar)%n1:iv%info(metar)%n2))
32 allocate (model_q(1,iv%info(metar)%n1:iv%info(metar)%n2))
33 allocate (model_p(iv%info(metar)%n1:iv%info(metar)%n2))
35 allocate (ub(1,iv%info(metar)%n1:iv%info(metar)%n2))
36 allocate (vb(1,iv%info(metar)%n1:iv%info(metar)%n2))
39 ! [1.2] Interpolate horizontally:
41 call da_interp_lin_3d (grid%xa%u, iv%info(metar),model_u,'u')
42 call da_interp_lin_3d (grid%xa%v, iv%info(metar),model_v,'v')
44 call da_interp_lin_3d (grid%xa%u, iv%info(metar),model_u)
45 call da_interp_lin_3d (grid%xa%v, iv%info(metar),model_v)
47 call da_interp_lin_3d (grid%xa%t, iv%info(metar),model_t)
48 call da_interp_lin_3d (grid%xa%q, iv%info(metar),model_q)
50 call da_interp_lin_2d (grid%xa%psfc, iv%info(metar), 1, model_p)
52 call da_interp_lin_3d (grid%xb%u, iv%info(metar), ub)
53 call da_interp_lin_3d (grid%xb%v, iv%info(metar), vb)
55 do n=iv%info(metar)%n1,iv%info(metar)%n2
57 if (wind_sd_metar) then
58 call da_uv_to_sd_lin(y%metar(n)%u,y%metar(n)%v,model_u(1,n),model_v(1,n),ub(1,n),vb(1,n))
60 y%metar(n)%u = model_u(1,n)
61 y%metar(n)%v = model_v(1,n)
64 y%metar(n)%t = model_t(1,n)
65 y%metar(n)%q = model_q(1,n)
66 y%metar(n)%p = model_p(n)
78 else if (sfc_assi_options == sfc_assi_options_2) then
79 ! [2.0] Surface assimilation approach 2
80 call da_transform_xtopsfc(grid,iv,metar,iv%metar(:),y%metar(:))
83 if (trace_use_dull) call da_trace_exit("da_transform_xtoy_metar")
85 end subroutine da_transform_xtoy_metar