/[lmdze]/trunk/Sources/filtrez/inifilr.f
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revision 140 by guez, Fri Jun 5 18:58:06 2015 UTC revision 151 by guez, Tue Jun 23 15:14:20 2015 UTC
# Line 32  contains Line 32  contains
32      USE dimens_m, ONLY : iim, jjm      USE dimens_m, ONLY : iim, jjm
33      USE dynetat0_m, ONLY : rlatu, rlatv, xprimu, grossismx      USE dynetat0_m, ONLY : rlatu, rlatv, xprimu, grossismx
34      use inifgn_m, only: inifgn, eignfnu, eignfnv      use inifgn_m, only: inifgn, eignfnu, eignfnv
35        use jumble, only: new_unit
36      use nr_util, only: pi      use nr_util, only: pi
37    
38      ! Local:      ! Local:
39      REAL dlatu(jjm)      REAL dlatu(jjm)
40      REAL rlamda(2: iim)      REAL rlamda(2: iim)
41      real eignvl(iim) ! eigenvalues      real eignvl(iim) ! eigenvalues sorted in descending order
42      REAL lamdamax, cof      REAL cof
43      INTEGER i, j, k, kf      INTEGER i, j, k, unit
44      REAL dymin, colat0      REAL colat0 ! > 0
45      REAL eignft(iim, iim), coff      REAL eignft(iim, iim), coff
46    
47      ! Filtering coefficients (lamda_max * cos(rlat) / lamda):      ! Filtering coefficients (lamda_max * cos(rlat) / lamda):
48      real coefilu(iim, jjm), coefilv(iim, jjm)      real coefilu(iim, jjm), coefilv(iim, jjm)
49      real coefilu2(iim, jjm), coefilv2(iim, jjm)      real coefilu2(iim, jjm), coefilv2(iim, jjm)
50    
51      integer modfrstu(jjm), modfrstv(jjm)      ! Index of the mode from where modes are filtered:
52      ! index of the mode from where modes are filtered      integer, allocatable:: modfrstnu(:), modfrstsu(:)
53        integer, allocatable:: modfrstnv(:), modfrstsv(:)
54    
55      !-----------------------------------------------------------      !-----------------------------------------------------------
56    
# Line 56  contains Line 58  contains
58    
59      CALL inifgn(eignvl)      CALL inifgn(eignvl)
60    
     PRINT *, 'EIGNVL '  
     PRINT "(1X, 5E13.6)", eignvl  
   
61      ! compute eigenvalues and eigenfunctions      ! compute eigenvalues and eigenfunctions
62      ! compute the filtering coefficients for scalar lines and      ! compute the filtering coefficients for scalar lines and
63      ! meridional wind v-lines      ! meridional wind v-lines
# Line 68  contains Line 67  contains
67      ! is set equal to zero for the regular grid case      ! is set equal to zero for the regular grid case
68    
69      ! Calcul de colat0      ! Calcul de colat0
70        forall (j = 1:jjm) dlatu(j) = rlatu(j) - rlatu(j + 1)
71      DO j = 1, jjm      colat0 = min(0.5, minval(dlatu) / minval(xprimu(:iim)))
        dlatu(j) = rlatu(j) - rlatu(j + 1)  
     END DO  
   
     dymin = dlatu(1)  
     DO j = 2, jjm  
        dymin = min(dymin, dlatu(j))  
     END DO  
   
     colat0 = min(0.5, dymin / minval(xprimu(:iim)))  
   
72      PRINT *, 'colat0 = ', colat0      PRINT *, 'colat0 = ', colat0
73    
74      lamdamax = iim / (pi * colat0 / grossismx)      rlamda = iim / (pi * colat0 / grossismx) / sqrt(abs(eignvl(2: iim)))
     rlamda = lamdamax / sqrt(abs(eignvl(2: iim)))  
   
     DO j = 1, jjm  
        DO i = 1, iim  
           coefilu(i, j) = 0.  
           coefilv(i, j) = 0.  
           coefilu2(i, j) = 0.  
           coefilv2(i, j) = 0.  
        end DO  
     END DO  
   
     ! Determination de jfiltnu, jfiltnv, jfiltsu, jfiltsv  
   
     PRINT *, 'TRUNCATION AT ', iim  
   
     DO j = 2, jjm / 2 + 1  
        IF (cos(rlatu(j)) / colat0 < 1. &  
             .and. rlamda(iim) * cos(rlatu(j)) < 1.) jfiltnu = j  
   
        IF (cos(rlatu(jjm - j + 2)) / colat0 < 1. &  
             .and. rlamda(iim) * cos(rlatu(jjm - j + 2)) < 1.) &  
             jfiltsu = jjm - j + 2  
     END DO  
   
     DO j = 1, jjm / 2  
        IF (cos(rlatv(j)) / colat0 < 1. .and. rlamda(iim) * cos(rlatv(j)) < 1.) &  
             jfiltnv = j  
75    
76         IF (cos(rlatv(jjm - j + 1)) / colat0 < 1. .and. rlamda(iim) &      ! Determination de jfiltnu, jfiltsu, jfiltnv, jfiltsv
             * cos(rlatv(jjm - j + 1)) < 1.) jfiltsv = jjm - j + 1  
     END DO  
   
     IF (jfiltnu <= 0) jfiltnu = 1  
     IF (jfiltnu > jjm / 2 + 1) THEN  
        PRINT *, 'jfiltnu en dehors des valeurs acceptables ', jfiltnu  
        STOP 1  
     END IF  
77    
78      IF (jfiltsu <= 0) jfiltsu = 1      jfiltnu = (jjm + 1) / 2
79      IF (jfiltsu > jjm + 1) THEN      do while (cos(rlatu(jfiltnu)) >= colat0 &
80         PRINT *, 'jfiltsu en dehors des valeurs acceptables ', jfiltsu           .or. rlamda(iim) * cos(rlatu(jfiltnu)) >= 1.)
81           jfiltnu = jfiltnu - 1
82        end do
83    
84        jfiltsu = jjm / 2 + 2
85        do while (cos(rlatu(jfiltsu)) >= colat0 &
86             .or. rlamda(iim) * cos(rlatu(jfiltsu)) >= 1.)
87           jfiltsu = jfiltsu + 1
88        end do
89    
90        jfiltnv = jjm / 2
91        do while ((cos(rlatv(jfiltnv)) >= colat0 &
92             .or. rlamda(iim) * cos(rlatv(jfiltnv)) >= 1.) .and. jfiltnv >= 2)
93           jfiltnv = jfiltnv - 1
94        end do
95    
96        if (cos(rlatv(jfiltnv)) >= colat0 &
97             .or. rlamda(iim) * cos(rlatv(jfiltnv)) >= 1.) then
98           ! {jfiltnv == 1}
99           PRINT *, 'Could not find jfiltnv.'
100         STOP 1         STOP 1
101      END IF      END IF
102    
103      IF (jfiltnv <= 0) jfiltnv = 1      jfiltsv = (jjm + 1)/ 2 + 1
104      IF (jfiltnv > jjm / 2) THEN      do while ((cos(rlatv(jfiltsv)) >= colat0 &
105         PRINT *, 'jfiltnv en dehors des valeurs acceptables ', jfiltnv           .or. rlamda(iim) * cos(rlatv(jfiltsv)) >= 1.) .and. jfiltsv <= jjm - 1)
106           jfiltsv = jfiltsv + 1
107        end do
108    
109        IF (cos(rlatv(jfiltsv)) >= colat0 &
110             .or. rlamda(iim) * cos(rlatv(jfiltsv)) >= 1.) THEN
111           ! {jfiltsv == jjm}
112           PRINT *, 'Could not find jfiltsv.'
113         STOP 1         STOP 1
114      END IF      END IF
115    
116      IF (jfiltsv <= 0) jfiltsv = 1      PRINT *, 'jfiltnu =', jfiltnu
117      IF (jfiltsv > jjm) THEN      PRINT *, 'jfiltsu =', jfiltsu
118         PRINT *, 'jfiltsv en dehors des valeurs acceptables ', jfiltsv      PRINT *, 'jfiltnv =', jfiltnv
119         STOP 1      PRINT *, 'jfiltsv =', jfiltsv
120      END IF  
121        ! Determination de coefilu, coefilv, modfrst[ns][uv]:
122      PRINT *, 'jfiltnv jfiltsv jfiltnu jfiltsu ', jfiltnv, jfiltsv, jfiltnu, &  
123           jfiltsu      allocate(modfrstnu(2:jfiltnu), modfrstsu(jfiltsu:jjm))
124        allocate(modfrstnv(jfiltnv), modfrstsv(jfiltsv:jjm))
125      ! Determination de coefilu, coefilv, n=modfrstu, modfrstv      coefilu = 0.
126        coefilv = 0.
127      DO j = 1, jjm      coefilu2 = 0.
128         modfrstu(j) = iim      coefilv2 = 0.
        modfrstv(j) = iim  
     END DO  
129    
130      DO j = 2, jfiltnu      DO j = 2, jfiltnu
131         DO k = 2, iim         modfrstnu(j) = 2
132            IF (rlamda(k) * cos(rlatu(j)) < 1.) exit         do while (rlamda(modfrstnu(j)) * cos(rlatu(j)) >= 1. &
133         end DO              .and. modfrstnu(j) <= iim - 1)
134         if (k == iim + 1) cycle            modfrstnu(j) = modfrstnu(j) + 1
135         modfrstu(j) = k         end do
136    
137         kf = modfrstu(j)         if (rlamda(modfrstnu(j)) * cos(rlatu(j)) < 1.) then
138         DO k = kf, iim            DO k = modfrstnu(j), iim
139            cof = rlamda(k) * cos(rlatu(j))               cof = rlamda(k) * cos(rlatu(j))
140            coefilu(k, j) = cof - 1.               coefilu(k, j) = cof - 1.
141            coefilu2(k, j) = cof**2 - 1.               coefilu2(k, j) = cof**2 - 1.
142         end DO            end DO
143           end if
144      END DO      END DO
145    
146      DO j = 1, jfiltnv      DO j = 1, jfiltnv
147         DO k = 2, iim         modfrstnv(j) = 2
148            IF (rlamda(k) * cos(rlatv(j)) < 1.) exit         do while (rlamda(modfrstnv(j)) * cos(rlatv(j)) >= 1. &
149         end DO              .and. modfrstnv(j) <= iim - 1)
150         if (k == iim + 1) cycle            modfrstnv(j) = modfrstnv(j) + 1
151         modfrstv(j) = k         end do
152    
153         kf = modfrstv(j)         if (rlamda(modfrstnv(j)) * cos(rlatv(j)) < 1.) then
154         DO k = kf, iim            DO k = modfrstnv(j), iim
155            cof = rlamda(k) * cos(rlatv(j))               cof = rlamda(k) * cos(rlatv(j))
156            coefilv(k, j) = cof - 1.               coefilv(k, j) = cof - 1.
157            coefilv2(k, j) = cof**2 - 1.               coefilv2(k, j) = cof**2 - 1.
158         end DO            end DO
159           end if
160      end DO      end DO
161    
162      DO j = jfiltsu, jjm      DO j = jfiltsu, jjm
163         DO k = 2, iim         modfrstsu(j) = 2
164            IF (rlamda(k) * cos(rlatu(j)) < 1.) exit         do while (rlamda(modfrstsu(j)) * cos(rlatu(j)) >= 1. &
165         end DO              .and. modfrstsu(j) <= iim - 1)
166         if (k == iim + 1) cycle            modfrstsu(j) = modfrstsu(j) + 1
167         modfrstu(j) = k         end do
168    
169         kf = modfrstu(j)         if (rlamda(modfrstsu(j)) * cos(rlatu(j)) < 1.) then
170         DO k = kf, iim            DO k = modfrstsu(j), iim
171            cof = rlamda(k) * cos(rlatu(j))               cof = rlamda(k) * cos(rlatu(j))
172            coefilu(k, j) = cof - 1.               coefilu(k, j) = cof - 1.
173            coefilu2(k, j) = cof**2 - 1.               coefilu2(k, j) = cof**2 - 1.
174         end DO            end DO
175           end if
176      end DO      end DO
177    
178      DO j = jfiltsv, jjm      DO j = jfiltsv, jjm
179         DO k = 2, iim         modfrstsv(j) = 2
180            IF (rlamda(k) * cos(rlatv(j)) < 1.) exit         do while (rlamda(modfrstsv(j)) * cos(rlatv(j)) >= 1. &
181         end DO              .and. modfrstsv(j) <= iim - 1)
182         if (k == iim + 1) cycle            modfrstsv(j) = modfrstsv(j) + 1
183         modfrstv(j) = k         end do
184    
185         kf = modfrstv(j)         if (rlamda(modfrstsv(j)) * cos(rlatv(j)) < 1.) then
186         DO k = kf, iim            DO k = modfrstsv(j), iim
187            cof = rlamda(k) * cos(rlatv(j))               cof = rlamda(k) * cos(rlatv(j))
188            coefilv(k, j) = cof - 1.               coefilv(k, j) = cof - 1.
189            coefilv2(k, j) = cof**2 - 1.               coefilv2(k, j) = cof**2 - 1.
190         end DO            end DO
191      END DO         end if
192        END DO
193      IF (jfiltnv>=jjm / 2 .OR. jfiltnu>=jjm / 2) THEN  
194         IF (jfiltnv == jfiltsv) jfiltsv = 1 + jfiltnv      call new_unit(unit)
195         IF (jfiltnu == jfiltsu) jfiltsu = 1 + jfiltnu      open(unit, file = "inifilr_out.txt", status = "replace", action = "write")
196        write(unit, fmt = *) '"EIGNVL"', eignvl
197         PRINT *, 'jfiltnv jfiltsv jfiltnu jfiltsu', jfiltnv, jfiltsv, jfiltnu, &      write(unit, fmt = *) '"modfrstnu"', modfrstnu
198              jfiltsu      write(unit, fmt = *) '"modfrstsu"', modfrstsu
199      END IF      write(unit, fmt = *) '"modfrstnv"', modfrstnv
200        write(unit, fmt = *) '"modfrstsv"', modfrstsv
201      PRINT *, 'Modes premiers v '      close(unit)
     PRINT 334, modfrstv  
     PRINT *, 'Modes premiers u '  
     PRINT 334, modfrstu  
202    
203      allocate(matriceun(iim, iim, 2:jfiltnu), matrinvn(iim, iim, 2:jfiltnu))      allocate(matriceun(iim, iim, 2:jfiltnu), matrinvn(iim, iim, 2:jfiltnu))
204      allocate(matricevn(iim, iim, jfiltnv))      allocate(matricevn(iim, iim, jfiltnv))
# Line 232  contains Line 210  contains
210    
211      DO j = 2, jfiltnu      DO j = 2, jfiltnu
212         DO i = 1, iim         DO i = 1, iim
213            IF (i < modfrstu(j)) then            IF (i < modfrstnu(j)) then
214               coff = 0.               coff = 0.
215            else            else
216               coff = coefilu(i, j)               coff = coefilu(i, j)
# Line 244  contains Line 222  contains
222    
223      DO j = jfiltsu, jjm      DO j = jfiltsu, jjm
224         DO i = 1, iim         DO i = 1, iim
225            IF (i < modfrstu(j)) then            IF (i < modfrstsu(j)) then
226               coff = 0.               coff = 0.
227            else            else
228               coff = coefilu(i, j)               coff = coefilu(i, j)
# Line 259  contains Line 237  contains
237    
238      DO j = 1, jfiltnv      DO j = 1, jfiltnv
239         DO i = 1, iim         DO i = 1, iim
240            IF (i < modfrstv(j)) then            IF (i < modfrstnv(j)) then
241               coff = 0.               coff = 0.
242            else            else
243               coff = coefilv(i, j)               coff = coefilv(i, j)
# Line 271  contains Line 249  contains
249    
250      DO j = jfiltsv, jjm      DO j = jfiltsv, jjm
251         DO i = 1, iim         DO i = 1, iim
252            IF (i < modfrstv(j)) then            IF (i < modfrstsv(j)) then
253               coff = 0.               coff = 0.
254            else            else
255               coff = coefilv(i, j)               coff = coefilv(i, j)
# Line 286  contains Line 264  contains
264    
265      DO j = 2, jfiltnu      DO j = 2, jfiltnu
266         DO i = 1, iim         DO i = 1, iim
267            IF (i < modfrstu(j)) then            IF (i < modfrstnu(j)) then
268               coff = 0.               coff = 0.
269            else            else
270               coff = coefilu(i, j) / (1. + coefilu(i, j))               coff = coefilu(i, j) / (1. + coefilu(i, j))
# Line 298  contains Line 276  contains
276    
277      DO j = jfiltsu, jjm      DO j = jfiltsu, jjm
278         DO i = 1, iim         DO i = 1, iim
279            IF (i < modfrstu(j)) then            IF (i < modfrstsu(j)) then
280               coff = 0.               coff = 0.
281            else            else
282               coff = coefilu(i, j) / (1. + coefilu(i, j))               coff = coefilu(i, j) / (1. + coefilu(i, j))
# Line 308  contains Line 286  contains
286         matrinvs(:, :, j) = matmul(eignfnv, eignft)         matrinvs(:, :, j) = matmul(eignfnv, eignft)
287      END DO      END DO
288    
 334 FORMAT (1X, 24I3)  
   
289    END SUBROUTINE inifilr    END SUBROUTINE inifilr
290    
291  end module inifilr_m  end module inifilr_m
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