da_get_innov_vector_airep.inc
References to this file elsewhere.
1 subroutine da_get_innov_vector_airep( it, xb, xp, ob, iv)
2
3 !-----------------------------------------------------------------------
4 ! Purpose: TBD
5 ! Update :
6 ! 01/24/2007 Syed RH Rizvi
7 ! Updated for "VERIFY"
8 !-----------------------------------------------------------------------
9
10 implicit none
11
12 integer, intent(in) :: it ! External iteration.
13 type(xb_type), intent(in) :: xb ! first guess state.
14 type(xpose_type), intent(in) :: xp ! Domain decomposition vars.
15 type(y_type), intent(inout) :: ob ! Observation structure.
16 type(ob_type), intent(inout) :: iv ! O-B structure.
17
18 integer :: n ! Loop counter.
19 integer :: i, j, k ! Index dimension.
20 integer :: num_levs ! Number of obs levels.
21 real :: dx, dxm ! Interpolation weights.
22 real :: dy, dym ! Interpolation weights.
23 real, dimension(1:max_ob_levels) :: model_u ! Model value u at ob location.
24 real, dimension(1:max_ob_levels) :: model_v ! Model value v at ob location.
25 real, dimension(1:max_ob_levels) :: model_t ! Model value t at ob location.
26
27
28 real, dimension(xp%kms:xp%kme) :: v_h ! Model value h at ob hor. location.
29 real, dimension(xp%kms:xp%kme) :: v_p ! Model value p at ob hor. location.
30
31 integer :: itu,ituf,itvv,itvvf,itt,ittf
32
33 if (iv % num_airep < 1) return
34
35 if (trace_use) call da_trace_entry("da_get_innov_vector_airep")
36
37 itu = 0; itvv = 0; itt = 0;
38 ituf = 0; itvvf = 0; ittf = 0;
39
40 do n=iv%ob_numb(iv%current_ob_time-1)%airep + 1, iv%ob_numb(iv%current_ob_time)%airep
41 num_levs = iv % airep(n) % info % levels
42 if (num_levs < 1) cycle
43
44 model_u(:) = 0.0
45 model_v(:) = 0.0
46 model_t(:) = 0.0
47
48 ! [1.1] Get horizontal interpolation weights:
49
50 i = iv%airep(n)%loc%i
51 j = iv%airep(n)%loc%j
52 dx = iv%airep(n)%loc%dx
53 dy = iv%airep(n)%loc%dy
54 dxm = iv%airep(n)%loc%dxm
55 dym = iv%airep(n)%loc%dym
56
57 do k=xp%kts,xp%kte
58 v_h(k) = dym*(dxm*xb%h(i,j ,k) + dx*xb%h(i+1,j ,k)) &
59 + dy *(dxm*xb%h(i,j+1,k) + dx*xb%h(i+1,j+1,k))
60 v_p(k) = dym*(dxm*xb%p(i,j ,k) + dx*xb%p(i+1,j ,k)) &
61 + dy *(dxm*xb%p(i,j+1,k) + dx*xb%p(i+1,j+1,k))
62 end do
63
64 num_levs=0
65 do k=1, iv % airep(n) % info % levels
66 iv%airep(n)%zk(k)=missing_r
67 if (iv % airep(n) % p(k) > 1.0) then
68 call da_to_zk(iv % airep(n) % p(k), v_p, xp, v_interp_p, &
69 iv%airep(n)%zk(k))
70 else if (iv % airep(n) % h(k) > 0.0) then
71 call da_to_zk(iv % airep(n) % h(k), v_h, xp, v_interp_h, &
72 iv%airep(n)%zk(k))
73 end if
74
75 if (iv%airep(n)%zk(k) < 0.0 .and. .not.anal_type_verify ) then
76 iv % airep(n) % u(k) % qc = missing
77 iv % airep(n) % v(k) % qc = missing
78 iv % airep(n) % t(k) % qc = missing
79 end if
80 end do
81
82 num_levs = iv % airep(n) % info % levels
83
84 ! [1.2] Interpolate horizontally:
85 call da_interp_lin_3d( xb % u, xp, i, j, dx, dy, dxm, dym, &
86 model_u, max_ob_levels, iv%airep(n)%zk, num_levs)
87
88 call da_interp_lin_3d( xb % v, xp, i, j, dx, dy, dxm, dym, &
89 model_v, max_ob_levels, iv%airep(n)%zk, num_levs)
90
91 call da_interp_lin_3d( xb % t, xp, i, j, dx, dy, dxm, dym, &
92 model_t, max_ob_levels, iv%airep(n)%zk, num_levs)
93
94 !-------------------------------------------------------------------
95 ! [2.0] Initialise components of innovation vector:
96 !-------------------------------------------------------------------
97
98 do k = 1, iv % airep(n) % info % levels
99 iv % airep(n) % u(k) % inv = 0.0
100 iv % airep(n) % v(k) % inv = 0.0
101 iv % airep(n) % t(k) % inv = 0.0
102
103 !----------------------------------------------------------------
104 ! [3.0] Fast interpolation:
105 !----------------------------------------------------------------
106
107 if (ob % airep(n) % u(k) > missing_r .AND. &
108 iv % airep(n) % u(k) % qc >= obs_qc_pointer) then
109 iv % airep(n) % u(k) % inv = ob % airep(n) % u(k) - model_u(k)
110 end if
111
112 if (ob % airep(n) % v(k) > missing_r .AND. &
113 iv % airep(n) % v(k) % qc >= obs_qc_pointer) then
114 iv % airep(n) % v(k) % inv = ob % airep(n) % v(k) - model_v(k)
115 end if
116
117 if (ob % airep(n) % t(k) > missing_r .AND. &
118 iv % airep(n) % t(k) % qc >= obs_qc_pointer) then
119 iv % airep(n) % t(k) % inv = ob % airep(n) % t(k) - model_t(k)
120 end if
121 end do
122
123 !-------------------------------------------------------------------
124 ! [5.0] Perform optional maximum error check:
125 !-------------------------------------------------------------------
126
127 if (check_max_iv)then
128 call da_check_max_iv_airep(it, iv % airep(n),itu,ituf,itvv, &
129 itvvf,itt,ittf)
130 end if
131 end do
132
133 if (rootproc .and. check_max_iv_print) then
134 write(unit = check_max_iv_unit, fmt ='(A,i5,A)') &
135 'For outer iteration ',it, &
136 ', Total Rejections for Airep follows:'
137 write(unit = check_max_iv_unit, fmt = '(/,10(2(A,I6),/))') &
138 'Number of failed u-wind observations: ',ituf, ' on ',itu, &
139 'Number of failed v-wind observations: ',itvvf,' on ',itvv, &
140 'Number of failed temperature observations:',ittf, ' on ',itt, &
141 'Finally Total Airep rejections ',ituf+itvvf+ittf,' on ', &
142 itu +itvv +itt
143 end if
144
145 if (trace_use) call da_trace_exit("da_get_innov_vector_airep")
146
147 end subroutine da_get_innov_vector_airep
148
149