1 | SUBROUTINE glored (pzgg, pworkgr, klon, klat, ktronca) |
---|
2 | C***** |
---|
3 | C ***************************** |
---|
4 | C * OASIS ROUTINE - LEVEL 3 * |
---|
5 | C * ------------- ------- * |
---|
6 | C ***************************** |
---|
7 | C |
---|
8 | C**** *glored* - Global gaussian grid transformation |
---|
9 | C |
---|
10 | C Purpose: |
---|
11 | C ------- |
---|
12 | C Linear interpolation of field from full gaussian grid to reduced grid |
---|
13 | C |
---|
14 | C N.B: It is assumed that a preprocessing of the field on the full grid |
---|
15 | C was done to allocate ocean values to land points as no mask is used |
---|
16 | C in this routine. |
---|
17 | C |
---|
18 | C** Interface: |
---|
19 | C --------- |
---|
20 | C *CALL* *glored (pzgg, pworkgr, klon, klat, ktronca)* |
---|
21 | C |
---|
22 | C Input: |
---|
23 | C ----- |
---|
24 | C pzgg : field on global grid (real 2D) |
---|
25 | C pworkgr : array to store field on global grid (real 2D) |
---|
26 | C klon : number of longitudes of global grid |
---|
27 | C klat : number of latitudes of both grids |
---|
28 | C ktronca : truncature of gaussian grid |
---|
29 | C |
---|
30 | C Output: |
---|
31 | C ------ |
---|
32 | C pzgg: field on reduced grid (real 2D) |
---|
33 | C |
---|
34 | C Workspace: |
---|
35 | C --------- |
---|
36 | C inip |
---|
37 | C |
---|
38 | C Externals: |
---|
39 | C --------- |
---|
40 | C None |
---|
41 | C |
---|
42 | C Reference: |
---|
43 | C --------- |
---|
44 | C See OASIS manual (1995) |
---|
45 | C |
---|
46 | C History: |
---|
47 | C ------- |
---|
48 | C Version Programmer Date Description |
---|
49 | C ------- ---------- ---- ----------- |
---|
50 | C 1.0 L. Terray 94/01/01 created |
---|
51 | C 2.0 L. Terray 95/09/01 modified |
---|
52 | C 2.3 L. terray 99/03/01 bug corrected: inip DIMENSION |
---|
53 | C 2.3 S. Valcke 99/03/16 modified for T213 and T319 |
---|
54 | C 2.3 S. Valcke 99/03/26 changed troncature for number of |
---|
55 | C latitude between equator and pole |
---|
56 | C 2.3 S. Valcke 99/04/30 added: printing levels |
---|
57 | C |
---|
58 | C %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
---|
59 | C |
---|
60 | C* ---------------------------- Include files --------------------------- |
---|
61 | C |
---|
62 | USE mod_kinds_oasis |
---|
63 | USE mod_unit |
---|
64 | USE mod_gauss |
---|
65 | USE mod_printing |
---|
66 | C |
---|
67 | C* ---------------------------- Argument declarations ------------------- |
---|
68 | C |
---|
69 | |
---|
70 | REAL (kind=ip_realwp_p) pzgg(klon,klat), pworkgr(klon*klat) |
---|
71 | INTEGER (kind=ip_intwp_p) inip(320) |
---|
72 | C |
---|
73 | C* ---------------------------- Poema verses ---------------------------- |
---|
74 | C |
---|
75 | C %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
---|
76 | C |
---|
77 | C* 1. Initialization |
---|
78 | C -------------- |
---|
79 | C |
---|
80 | IF (nlogprt .GE. 2) THEN |
---|
81 | WRITE (UNIT = nulou,FMT = *) ' ' |
---|
82 | WRITE (UNIT = nulou,FMT = *) ' ' |
---|
83 | WRITE (UNIT = nulou,FMT = *) |
---|
84 | $ ' ROUTINE glored - Level 3' |
---|
85 | WRITE (UNIT = nulou,FMT = *) |
---|
86 | $ ' ************** *******' |
---|
87 | WRITE (UNIT = nulou,FMT = *) ' ' |
---|
88 | WRITE (UNIT = nulou,FMT = *) ' Go from global to reduced grid' |
---|
89 | WRITE (UNIT = nulou,FMT = *) ' ' |
---|
90 | WRITE (UNIT = nulou,FMT = *) ' ' |
---|
91 | ENDIF |
---|
92 | CALL izero(inip,320) |
---|
93 | C |
---|
94 | C |
---|
95 | C* 2. Full to reduced linear interpolation |
---|
96 | C ------------------------------------ |
---|
97 | C |
---|
98 | C |
---|
99 | C* get number of longitudes by latitude circle |
---|
100 | C |
---|
101 | IF (ktronca .EQ. 16) THEN |
---|
102 | DO 210 ji = 1, ktronca |
---|
103 | inip(ji) = ninip16(ji) |
---|
104 | 210 CONTINUE |
---|
105 | ELSE IF (ktronca .EQ. 24) THEN |
---|
106 | DO 220 ji = 1, ktronca |
---|
107 | inip(ji) = ninip24(ji) |
---|
108 | 220 CONTINUE |
---|
109 | ELSE IF (ktronca .EQ. 32) THEN |
---|
110 | DO 230 ji = 1, ktronca |
---|
111 | inip(ji) = ninip32(ji) |
---|
112 | 230 CONTINUE |
---|
113 | ELSE IF (ktronca .EQ. 48) THEN |
---|
114 | DO 240 ji = 1, ktronca |
---|
115 | inip(ji) = ninip48(ji) |
---|
116 | 240 CONTINUE |
---|
117 | ELSE IF (ktronca .EQ. 80) THEN |
---|
118 | DO 250 ji = 1, ktronca |
---|
119 | inip(ji) = ninip80(ji) |
---|
120 | 250 CONTINUE |
---|
121 | ELSE IF (ktronca .EQ. 160) THEN |
---|
122 | DO 255 ji = 1, ktronca |
---|
123 | inip(ji) = ninip160(ji) |
---|
124 | 255 CONTINUE |
---|
125 | ELSE |
---|
126 | CALL prtout |
---|
127 | $ ('WARNING!!! Oasis cannot treat this grid with 2*NO |
---|
128 | $ latitude lines with NO = ', ktronca, 2) |
---|
129 | CALL prtout('Implement data for NO =', ktronca, 2) |
---|
130 | CALL HALTE('STOP in glored') |
---|
131 | ENDIF |
---|
132 | C |
---|
133 | C* Extend inip array to both hemispheres |
---|
134 | C |
---|
135 | DO 260 ji = klat/2 + 1, klat |
---|
136 | inip(ji) = inip(klat - ji + 1) |
---|
137 | 260 CONTINUE |
---|
138 | C |
---|
139 | C* Do the interpolation global to reduced |
---|
140 | C |
---|
141 | indice = 0 |
---|
142 | DO 270 jk = 1, klat |
---|
143 | DO 280 ji = 1, inip(jk) |
---|
144 | zxi = 1 + ((ji - 1) * klon) / FLOAT(inip(jk)) |
---|
145 | im = INT(zxi) |
---|
146 | zdx = zxi - im |
---|
147 | im = 1 + MOD(im + klon - 1,klon) |
---|
148 | ip = 1 + MOD(im,klon) |
---|
149 | pworkgr(indice + ji) = pzgg(im,jk) * (1.-zdx) |
---|
150 | $ + pzgg(ip,jk) * zdx |
---|
151 | 280 CONTINUE |
---|
152 | indice = indice + inip(jk) |
---|
153 | 270 CONTINUE |
---|
154 | C |
---|
155 | C* Assign reduced grid values to array pzgg |
---|
156 | C |
---|
157 | DO 290 jj = 1, klat |
---|
158 | DO 295 ji = 1, klon |
---|
159 | pzgg(ji,jj) = pworkgr(klon*(jj-1)+ji) |
---|
160 | 295 CONTINUE |
---|
161 | 290 CONTINUE |
---|
162 | C |
---|
163 | C |
---|
164 | C* 3. End of routine |
---|
165 | C -------------- |
---|
166 | C |
---|
167 | IF (nlogprt .GE. 2) THEN |
---|
168 | WRITE (UNIT = nulou,FMT = *) ' ' |
---|
169 | WRITE (UNIT = nulou,FMT = *) |
---|
170 | $ ' --------- End of routine glored ---------' |
---|
171 | CALL FLUSH (nulou) |
---|
172 | ENDIF |
---|
173 | RETURN |
---|
174 | END |
---|
175 | |
---|