1 | MODULE nudging_mod |
---|
2 | USE icosa, ONLY : rstd |
---|
3 | USE grid_param, ONLY : llm, nqdyn |
---|
4 | USE omp_para, ONLY : ll_begin, ll_end |
---|
5 | USE domain_mod, ONLY : ndomain, assigned_domain |
---|
6 | USE dimensions, ONLY : swap_dimensions, u_right, u_lup, u_ldown |
---|
7 | USE dimensions, ONLY : iim, jjm, ij_begin_ext, ij_end_ext |
---|
8 | USE geometry, ONLY : swap_geometry |
---|
9 | USE field_mod |
---|
10 | IMPLICIT NONE |
---|
11 | SAVE |
---|
12 | PRIVATE |
---|
13 | ! nudging will be active outside a disc of radius 'radius' centered at 'center_lon', 'center lat'. |
---|
14 | REAL(rstd) :: center_lon, center_lat, nudging_radius, time |
---|
15 | !$OMP THREADPRIVATE(center_lon, center_lat, nudging_radius, time) |
---|
16 | |
---|
17 | TYPE(t_field),POINTER :: f_relax_coef_e(:), f_target_ue(:), & |
---|
18 | f_relax_coef_i(:), f_target_theta_rhodz(:) |
---|
19 | CHARACTER(LEN=255),SAVE :: guided_nudging_field |
---|
20 | INTEGER,SAVE :: nudging_time |
---|
21 | |
---|
22 | PUBLIC :: init_guided, guided |
---|
23 | |
---|
24 | CONTAINS |
---|
25 | |
---|
26 | SUBROUTINE init_guided(f_u,f_theta_rhodz) |
---|
27 | USE getin_mod, ONLY : getin |
---|
28 | USE math_const, ONLY : pi |
---|
29 | USE earth_const, ONLY : scale_factor |
---|
30 | TYPE(t_field),POINTER :: f_u(:)! initial condition |
---|
31 | TYPE(t_field),POINTER :: f_theta_rhodz(:)! initial condition |
---|
32 | REAL(rstd), POINTER :: ue(:,:), target_ue(:,:), coef_e(:) |
---|
33 | REAL(rstd), POINTER :: theta_rhodz(:,:,:), target_theta_rhodz(:,:,:), coef_i(:) |
---|
34 | INTEGER :: ind |
---|
35 | ! read DEF keys describing how to relax |
---|
36 | center_lon=0. |
---|
37 | CALL getin('nudging_center_lon', center_lon) |
---|
38 | center_lat=0. |
---|
39 | CALL getin('nudging_center_lat', center_lat) |
---|
40 | nudging_radius=0. |
---|
41 | CALL getin('nudging_radius', nudging_radius) |
---|
42 | nudging_radius = nudging_radius / scale_factor |
---|
43 | |
---|
44 | nudging_time=0. |
---|
45 | CALL getin('nudging_time', nudging_time) |
---|
46 | nudging_time = nudging_time/scale_factor |
---|
47 | ! we should check that radius>0 |
---|
48 | CALL getin("guided_nudging_field",guided_nudging_field) |
---|
49 | |
---|
50 | SELECT CASE(TRIM(guided_nudging_field)) |
---|
51 | CASE ('wind') |
---|
52 | CALL allocate_field(f_relax_coef_e, field_u, type_real, name='nudging_coef_e') |
---|
53 | CALL allocate_field(f_target_ue, field_u, type_real, llm, name='nudging_target_e') |
---|
54 | CASE ('temperature') |
---|
55 | CALL allocate_field(f_relax_coef_i, field_t, type_real, name='nudging_coef_i') |
---|
56 | CALL allocate_field(f_target_theta_rhodz, field_t, type_real, llm,nqdyn, name='nudging_target_theta') |
---|
57 | CASE ('wind_temperature') |
---|
58 | CALL allocate_field(f_relax_coef_e, field_u, type_real, name='nudging_coef_e') |
---|
59 | CALL allocate_field(f_target_ue, field_u, type_real, llm, name='nudging_target_e') |
---|
60 | CALL allocate_field(f_relax_coef_i, field_t, type_real, name='nudging_coef_i') |
---|
61 | CALL allocate_field(f_target_theta_rhodz, field_t, type_real, llm,nqdyn, name='nudging_target_theta') |
---|
62 | CASE DEFAULT |
---|
63 | PRINT*,"Bad selector for varaible init_guided_nudging>",TRIM(guided_nudging_field) |
---|
64 | PRINT*," option are <none>, <wind>, <temperature>,<wind_temperature>" |
---|
65 | STOP |
---|
66 | END SELECT |
---|
67 | |
---|
68 | ! compute relax_coef and target_ue |
---|
69 | center_lon = center_lon * pi/180. |
---|
70 | center_lat = center_lat * pi/180. |
---|
71 | DO ind = 1 , ndomain |
---|
72 | IF (.NOT. assigned_domain(ind)) CYCLE |
---|
73 | CALL swap_dimensions(ind) |
---|
74 | CALL swap_geometry(ind) |
---|
75 | coef_e = f_relax_coef_e(ind) |
---|
76 | coef_i = f_relax_coef_i(ind) |
---|
77 | target_ue = f_target_ue(ind) |
---|
78 | ue = f_u(ind) |
---|
79 | target_theta_rhodz = f_target_theta_rhodz(ind) |
---|
80 | theta_rhodz = f_theta_rhodz(ind) |
---|
81 | CALL compute_relax_coef(coef_e, coef_i) |
---|
82 | CALL compute_target_u(ue, target_ue) |
---|
83 | CALL compute_target_center(theta_rhodz, target_theta_rhodz) |
---|
84 | END DO |
---|
85 | END SUBROUTINE init_guided |
---|
86 | |
---|
87 | !----------------------------- Compute relaxation coefficients ------------------------------ |
---|
88 | |
---|
89 | SUBROUTINE compute_relax_coef(coef_e, coef_i) |
---|
90 | USE geometry, ONLY : lon_e, lat_e, lon_i, lat_i |
---|
91 | REAL(rstd), INTENT(OUT) :: coef_e(iim*3*jjm), coef_i(iim*jjm) |
---|
92 | INTEGER :: l, ij |
---|
93 | DO ij=ij_begin_ext, ij_end_ext |
---|
94 | coef_e(ij+u_right) = relax_coef(lon_e(ij+u_right), lat_e(ij+u_right) ) |
---|
95 | coef_e(ij+u_lup) = relax_coef(lon_e(ij+u_lup), lat_e(ij+u_lup) ) |
---|
96 | coef_e(ij+u_ldown) = relax_coef(lon_e(ij+u_ldown), lat_e(ij+u_ldown) ) |
---|
97 | coef_i(ij) = relax_coef(lon_i(ij), lat_i(ij) ) |
---|
98 | END DO |
---|
99 | END SUBROUTINE compute_relax_coef |
---|
100 | |
---|
101 | FUNCTION relax_coef(lon,lat) |
---|
102 | USE spherical_geom_mod, ONLY : dist_lonlat |
---|
103 | REAL(rstd), INTENT(IN) :: lon,lat |
---|
104 | REAL(rstd) :: relax_coef, dist, c |
---|
105 | ! NB : dist is computed on unit sphere |
---|
106 | CALL dist_lonlat(lon, lat, center_lon, center_lat, dist) |
---|
107 | c = tanh((1.-radius*dist/nudging_radius)*20.) ! 1 inside circle, -1 outside |
---|
108 | IF (c>0.99) c=1 |
---|
109 | IF (c<-0.99) c=-1 |
---|
110 | relax_coef = .5*(1.+c) ! rescale to [0,1] range ; ! 1 inside circle, 0 outside |
---|
111 | END FUNCTION relax_coef |
---|
112 | |
---|
113 | !----------------------------- Copy initial condition as target ------------------------------ |
---|
114 | |
---|
115 | SUBROUTINE compute_target_u(ue, target_ue) |
---|
116 | REAL(rstd), INTENT(OUT) :: target_ue(iim*3*jjm,llm) |
---|
117 | REAL(rstd), INTENT(IN) :: ue(iim*3*jjm,llm) |
---|
118 | INTEGER :: l, ij |
---|
119 | DO l = ll_begin, ll_end |
---|
120 | DO ij=ij_begin_ext, ij_end_ext |
---|
121 | target_ue(ij+u_right,l)=ue(ij+u_right,l) |
---|
122 | target_ue(ij+u_lup,l)=ue(ij+u_lup,l) |
---|
123 | target_ue(ij+u_ldown,l)=ue(ij+u_ldown,l) |
---|
124 | END DO |
---|
125 | END DO |
---|
126 | END SUBROUTINE compute_target_u |
---|
127 | |
---|
128 | SUBROUTINE compute_target_center(theta_rhodz, target_theta_rhodz) |
---|
129 | REAL(rstd), INTENT(OUT) :: target_theta_rhodz(iim*jjm,llm,nqdyn) |
---|
130 | REAL(rstd), INTENT(IN) :: theta_rhodz(iim*jjm,llm,nqdyn) |
---|
131 | INTEGER :: l, ij, iq |
---|
132 | DO iq=1, nqdyn |
---|
133 | DO l = ll_begin, ll_end |
---|
134 | DO ij=ij_begin_ext, ij_end_ext |
---|
135 | target_theta_rhodz(ij,l,iq)=theta_rhodz(ij,l,iq) |
---|
136 | END DO |
---|
137 | END DO |
---|
138 | END DO |
---|
139 | END SUBROUTINE compute_target_center |
---|
140 | |
---|
141 | !----------------------------- Relax towards target ------------------------------ |
---|
142 | |
---|
143 | SUBROUTINE guided(tt, f_ps, f_theta_rhodz, f_u, f_q) |
---|
144 | USE xios_mod |
---|
145 | USE theta2theta_rhodz_mod |
---|
146 | USE wind_mod |
---|
147 | USE transfert_mod |
---|
148 | USE time_mod |
---|
149 | USE vertical_remap_mod |
---|
150 | USE compute_pression_mod, ONLY : pression_mid |
---|
151 | REAL(rstd), INTENT(IN):: tt |
---|
152 | TYPE(t_field),POINTER :: f_ps(:) |
---|
153 | TYPE(t_field),POINTER,SAVE :: f_pmid_target(:) |
---|
154 | TYPE(t_field),POINTER :: f_phis(:) |
---|
155 | TYPE(t_field),POINTER :: f_theta_rhodz(:) |
---|
156 | TYPE(t_field),POINTER :: f_u(:) |
---|
157 | TYPE(t_field),POINTER :: f_q(:) |
---|
158 | TYPE(t_field),POINTER, SAVE :: f_T_guided(:), f_ulon_guided(:), f_ulat_guided(:),f_T_guided_interp(:), & |
---|
159 | f_ulon_guided_interp(:),f_ulat_guided_interp(:) |
---|
160 | REAL(rstd), POINTER :: target_ue(:,:), ue(:,:), coef_e(:) |
---|
161 | REAL(rstd), POINTER :: target_theta_rhodz(:,:,:), theta_rhodz(:,:,:), coef_i(:) |
---|
162 | INTEGER :: ind |
---|
163 | |
---|
164 | IF (abs(MOD(tt,REAL(nudging_time))-dt) < 1.0D-2) THEN |
---|
165 | |
---|
166 | CALL allocate_field(f_T_guided, field_t, type_real, llm, name='nudging_T') |
---|
167 | CALL allocate_field(f_T_guided_interp, field_t, type_real, llm, name='nudging_T') |
---|
168 | CALL allocate_field(f_ulon_guided_interp, field_t, type_real, llm, name='nudging_T') |
---|
169 | CALL allocate_field(f_ulat_guided_interp, field_t, type_real, llm, name='nudging_T') |
---|
170 | CALL allocate_field(f_ulon_guided, field_t, type_real, llm, name='nudging_ulon') |
---|
171 | CALL allocate_field(f_ulat_guided, field_t, type_real, llm, name='nudging_ulat') |
---|
172 | CALL allocate_field(f_pmid_target,field_t,type_real,llm,name='target_pressure') |
---|
173 | CALL xios_read_field("T_guided_read",f_T_guided) |
---|
174 | CALL pression_mid(f_ps, f_pmid_target) |
---|
175 | CALL vertical_remap_extdata(f_T_guided,f_pmid_target,f_T_guided_interp) |
---|
176 | CALL transfert_request(f_T_guided,req_i0) |
---|
177 | CALL transfert_request(f_T_guided_interp,req_i0) |
---|
178 | CALL transfert_request(f_T_guided,req_i1) |
---|
179 | CALL transfert_request(f_T_guided_interp,req_i1) |
---|
180 | CALL temperature2theta_rhodz(f_ps,f_T_guided_interp,f_target_theta_rhodz) |
---|
181 | CALL xios_read_field("ulon_guided_read",f_ulon_guided) |
---|
182 | CALL xios_read_field("ulat_guided_read",f_ulat_guided) |
---|
183 | CALL vertical_remap_extdata(f_ulon_guided,f_pmid_target,f_ulon_guided_interp) |
---|
184 | CALL vertical_remap_extdata(f_ulat_guided,f_pmid_target,f_ulat_guided_interp) |
---|
185 | CALL transfert_request(f_ulon_guided,req_i0) |
---|
186 | CALL transfert_request(f_ulon_guided_interp,req_i0) |
---|
187 | CALL transfert_request(f_ulat_guided,req_i0) |
---|
188 | CALL transfert_request(f_ulat_guided_interp,req_i0) |
---|
189 | CALL transfert_request(f_ulon_guided,req_i1) |
---|
190 | CALL transfert_request(f_ulon_guided_interp,req_i1) |
---|
191 | CALL transfert_request(f_ulat_guided,req_i1) |
---|
192 | CALL transfert_request(f_ulat_guided_interp,req_i1) |
---|
193 | CALL xios_write_field("ulat_guided_out",f_ulat_guided) |
---|
194 | CALL xios_write_field("ulon_guided_out",f_ulon_guided) |
---|
195 | CALL xios_write_field("T_guided_out",f_T_guided) |
---|
196 | CALL ulonlat2un(f_ulon_guided_interp, f_ulat_guided,f_target_ue) |
---|
197 | CALL deallocate_field(f_T_guided) |
---|
198 | CALL deallocate_field(f_T_guided_interp) |
---|
199 | CALL deallocate_field(f_ulon_guided) |
---|
200 | CALL deallocate_field(f_ulon_guided_interp) |
---|
201 | CALL deallocate_field(f_ulat_guided) |
---|
202 | CALL deallocate_field(f_ulat_guided_interp) |
---|
203 | CALL deallocate_field(f_pmid_target) |
---|
204 | |
---|
205 | ENDIF |
---|
206 | |
---|
207 | |
---|
208 | DO ind = 1 , ndomain |
---|
209 | IF (.NOT. assigned_domain(ind)) CYCLE |
---|
210 | CALL swap_dimensions(ind) |
---|
211 | CALL swap_geometry(ind) |
---|
212 | coef_e = f_relax_coef_e(ind) |
---|
213 | target_ue = f_target_ue(ind) |
---|
214 | ue = f_u(ind) |
---|
215 | CALL compute_guided_u(coef_e, target_ue, ue) |
---|
216 | coef_i = f_relax_coef_i(ind) |
---|
217 | target_theta_rhodz = f_target_theta_rhodz(ind) |
---|
218 | theta_rhodz = f_theta_rhodz(ind) |
---|
219 | CALL compute_guided_center(coef_i, target_theta_rhodz, theta_rhodz) |
---|
220 | END DO |
---|
221 | |
---|
222 | END SUBROUTINE guided |
---|
223 | |
---|
224 | SUBROUTINE compute_guided_u(coef_e, target_ue, ue) |
---|
225 | REAL(rstd), INTENT(IN) :: coef_e(iim*3*jjm) |
---|
226 | REAL(rstd), INTENT(IN) :: target_ue(iim*3*jjm,llm) |
---|
227 | REAL(rstd), INTENT(INOUT) :: ue(iim*3*jjm,llm) |
---|
228 | INTEGER :: l, ij |
---|
229 | DO l = ll_begin, ll_end |
---|
230 | DO ij=ij_begin_ext, ij_end_ext |
---|
231 | ue(ij+u_right,l) = ue(ij+u_right,l)*coef_e(ij+u_right) + & |
---|
232 | target_ue(ij+u_right,l)*(1.-coef_e(ij+u_right)) |
---|
233 | ue(ij+u_lup,l) = ue(ij+u_lup,l)*coef_e(ij+u_lup) + & |
---|
234 | target_ue(ij+u_lup,l)*(1.-coef_e(ij+u_lup)) |
---|
235 | ue(ij+u_ldown,l) = ue(ij+u_ldown,l)*coef_e(ij+u_ldown) + & |
---|
236 | target_ue(ij+u_ldown,l)*(1.-coef_e(ij+u_ldown)) |
---|
237 | END DO |
---|
238 | END DO |
---|
239 | END SUBROUTINE compute_guided_u |
---|
240 | |
---|
241 | SUBROUTINE compute_guided_center(coef_i, target_theta_rhodz, theta_rhodz) |
---|
242 | REAL(rstd), INTENT(IN) :: coef_i(iim*jjm) |
---|
243 | REAL(rstd), INTENT(IN) :: target_theta_rhodz(iim*jjm,llm,nqdyn) |
---|
244 | REAL(rstd), INTENT(INOUT) :: theta_rhodz(iim*jjm,llm,nqdyn) |
---|
245 | INTEGER :: l, ij, iq |
---|
246 | DO iq=1, nqdyn |
---|
247 | DO l = ll_begin, ll_end |
---|
248 | DO ij=ij_begin_ext, ij_end_ext |
---|
249 | theta_rhodz(ij,l,iq) = theta_rhodz(ij,l,iq)*coef_i(ij) + & |
---|
250 | target_theta_rhodz(ij,l,iq)*(1.-coef_i(ij)) |
---|
251 | END DO |
---|
252 | END DO |
---|
253 | END DO |
---|
254 | END SUBROUTINE compute_guided_center |
---|
255 | |
---|
256 | END MODULE nudging_mod |
---|