1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
C Copyright 1981-2007 ECMWF
C
C Licensed under the GNU Lesser General Public License which
C incorporates the terms and conditions of version 3 of the GNU
C General Public License.
C See LICENSE and gpl-3.0.txt for details.
C
INTEGER FUNCTION INTUVY( PVIN, PDIN, INLEN,
X PUOUT, PVOUT, OUTLEN)
C
C---->
C**** INTUVY
C
C Purpose
C -------
C
C Convert GRIB format input vorticity and divergence field to
C unpacked U and V fields.
C
C
C Interface
C ---------
C
C IRET = INTUVY( PVIN, PDIN, INLEN, PUOUT,PVOUT,OUTLEN)
C
C Input
C -----
C
C KVIN - Input vorticity field (spectral).
C KDIN - Input divergence field (spectral).
C INLEN - Input field length (words).
C
C
C Output
C ------
C
C KUOUT - Output U field
C KVOUT - Output V field
C OUTLEN - Output field length (words).
C
C
C Method
C ------
C
C Convert spectral vorticity/divergence to spectral U/V without
C subsequent interpolation.
C
C Note that a common block is used in intf.h to hold the U/V
C fields before interpolation.
C
C Externals
C ---------
C
C INTUVU - Now does all the work!
C INTLOG - Log error message.
C
C
C Author
C ------
C
C S.Curic ECMWF Dec 2006
C
C
C----<
C -----------------------------------------------------------------|
C
IMPLICIT NONE
C
C Function arguments
C
INTEGER INLEN, OUTLEN
REAL PVIN(INLEN), PDIN(INLEN), PUOUT(*), PVOUT(*)
C
#include "parim.h"
#include "nifld.common"
#include "nofld.common"
#include "grfixed.h"
#include "intf.h"
C
C Parameters
C
INTEGER JPROUTINE
PARAMETER (JPROUTINE = 26900 )
C
C Local variables
C
INTEGER IHOLD1, IHOLD2, IHOLD3
LOGICAL LHOLD4
C
C Externals
C
INTEGER INTUVU
C
C -----------------------------------------------------------------|
C* Section 1. Initialise
C -----------------------------------------------------------------|
C
100 CONTINUE
C
C -----------------------------------------------------------------|
C* Section 2. Unpack the vorticity/divergence fields.
C -----------------------------------------------------------------|
C
200 CONTINUE
C
C Ensure output representation says 'spectral, no rotation'
C
IHOLD1 = NOREPR
NOREPR = JPSPHERE
IHOLD2 = NOROTA(1)
IHOLD3 = NOROTA(2)
NOROTA(1) = -9000000
NOROTA(2) = 0.0
LHOLD4 = LNOROTA
LNOROTA = .FALSE.
C
INTUVY =
X INTUVU(PVIN,PDIN,INLEN,PUOUT,PVOUT,OUTLEN)
C
C Restore output representation
C
NOREPR = IHOLD1
NOROTA(1) = IHOLD2
NOROTA(2) = IHOLD3
LNOROTA = LHOLD4
C
C -----------------------------------------------------------------|
C* Section 9. Closedown.
C -----------------------------------------------------------------|
C
900 CONTINUE
C
RETURN
END
|
