da_get_innov_vector_geoamv.inc
References to this file elsewhere.
1 subroutine da_get_innov_vector_geoamv( it, xb, xp, ob, iv)
2
3 !-------------------------------------------------------------------------
4 ! Purpose: Calculates innovation vector does QC for Geo. AMV's
5 !
6 ! Update :
7 ! 01/24/2007 Syed RH Rizvi
8 ! Updated for "VERIFY"
9 !-------------------------------------------------------------------------
10
11 implicit none
12
13 integer, intent(in) :: it ! External iteration.
14 type(xb_type), intent(in) :: xb ! first guess state.
15 type(xpose_type), intent(in) :: xp ! Domain decomposition vars.
16 type(y_type), intent(in) :: ob ! Observation structure.
17 type(ob_type), intent(inout) :: iv ! O-B structure.
18
19 integer :: n ! Loop counter.
20 integer :: i, j, k ! Index dimension.
21 integer :: num_levs ! Number of obs levels.
22
23 real :: dx, dxm ! Interpolation weights.
24 real :: dy, dym ! Interpolation weights.
25 real, dimension(1:max_ob_levels) :: model_u ! Model value u at ob location.
26 real, dimension(1:max_ob_levels) :: model_v ! Model value v at ob location.
27
28 real, dimension(xp%kms:xp%kme) :: v_p ! Model value p at ob hor. location.
29
30 integer :: itu,ituf,itvv,itvvf
31
32 if (iv % num_geoamv < 1) return
33
34 if (trace_use) call da_trace_entry("da_get_innov_vector_geoamv")
35
36 itu = 0
37 itvv = 0
38 ituf = 0
39 itvvf = 0
40
41 do n=iv%ob_numb(iv%current_ob_time-1)%geoamv + 1, iv%ob_numb(iv%current_ob_time)%geoamv
42
43 ! [1.3] Get horizontal interpolation weights:
44
45 num_levs = iv % geoamv(n) % info % levels
46 if (num_levs < 1) cycle
47
48 model_u(:) = 0.0
49 model_v(:) = 0.0
50
51 i = iv%geoamv(n)%loc%i
52 j = iv%geoamv(n)%loc%j
53 dx = iv%geoamv(n)%loc%dx
54 dy = iv%geoamv(n)%loc%dy
55 dxm = iv%geoamv(n)%loc%dxm
56 dym = iv%geoamv(n)%loc%dym
57
58 do k=xp%kts,xp%kte
59 v_p(k) = dym*(dxm*xb%p(i,j ,k) + dx*xb%p(i+1,j ,k)) &
60 + dy *(dxm*xb%p(i,j+1,k) + dx*xb%p(i+1,j+1,k))
61 end do
62
63 do k=1, iv % geoamv(n) % info % levels
64 iv%geoamv(n)%zk(k)=missing_r
65
66 if (iv % geoamv(n) % p(k) > 1.0) then
67 call da_to_zk(iv % geoamv(n) % p(k), v_p, xp, v_interp_p, iv%geoamv(n)%zk(k))
68 end if
69
70 if (iv%geoamv(n)%zk(k) < 0.0 .and. .not.anal_type_verify) then
71 iv % geoamv(n) % u(k) % qc = missing
72 iv % geoamv(n) % v(k) % qc = missing
73 end if
74 end do
75
76 call da_interp_lin_3d( xb % u, xp, i, j, dx, dy, dxm, dym, &
77 model_u, max_ob_levels,iv%geoamv(n)%zk,num_levs)
78 call da_interp_lin_3d( xb % v, xp, i, j, dx, dy, dxm, dym, &
79 model_v, max_ob_levels,iv%geoamv(n)%zk,num_levs)
80
81 do k = 1, iv % geoamv(n) % info % levels
82 iv % geoamv(n) % u(k) % inv = 0.0
83 iv % geoamv(n) % v(k) % inv = 0.0
84 if (ob % geoamv(n) % u(k) > missing_r .AND. &
85 iv % geoamv(n) % u(k) % qc >= obs_qc_pointer) then
86 iv % geoamv(n) % u(k) % inv = ob % geoamv(n) % u(k) - model_u(k)
87 end if
88
89 if (ob % geoamv(n) % v(k) > missing_r .AND. &
90 iv % geoamv(n) % v(k) % qc >= obs_qc_pointer) then
91 iv % geoamv(n) % v(k) % inv = ob % geoamv(n) % v(k) - model_v(k)
92 end if
93 end do
94
95 !------------------------------------------------------------------------
96 ! Perform optional maximum error check:
97 !------------------------------------------------------------------------
98
99 if (check_max_iv) then
100 call da_check_max_iv_geoamv(it, iv % geoamv(n),itu,ituf,itvv,itvvf)
101 end if
102 end do
103
104 if (rootproc .and. check_max_iv_print) then
105 write(unit = check_max_iv_unit, fmt ='(A,i5,A)')'For outer iteration ',it, &
106 ', Total Rejections for Geo. AMVs follows:'
107 write(unit = check_max_iv_unit, fmt = '(/,10(2(A,I6),/))') &
108 'Number of failed u-wind observations: ',ituf, ' on ',itu, &
109 'Number of failed v-wind observations: ',itvvf,' on ',itvv, &
110 'Finally Total Geo. AMVs rejections ',ituf+itvvf,' on ',itu+itvv
111 end if
112
113 if (trace_use) call da_trace_exit("da_get_innov_vector_geoamv")
114
115 end subroutine da_get_innov_vector_geoamv
116
117