pkg/cal/cal_convdate.F

C $Header: /u/gcmpack/development/heimbach/ecco_env/pkg/cal/cal_convdate.F,v 1.4 2001/02/02 16:57:22 heimbach Exp $

#include "CAL_CPPOPTIONS.h"

      subroutine cal_ConvDate(
     I                         date,
     O                         yy, mm, dd, ss,
     O                         lp, wd,
     I                         mythid
     &                       )

c     ==================================================================
c     SUBROUTINE cal_ConvDate
c     ==================================================================
c
c     o Decompose the first part of a date array.
c              
c     started: Christian Eckert eckert@mit.edu  30-Jun-1999
c
c     changed: Christian Eckert eckert@mit.edu  29-Dec-1999
c
c              - restructured the original version in order to have a
c                better interface to the MITgcmUV.
c
c              Christian Eckert eckert@mit.edu  03-Feb-2000
c
c              - Introduced new routine and function names, cal_<NAME>,
c                for verion 0.1.3.
c
c     ==================================================================
c     SUBROUTINE cal_ConvDate
c     ==================================================================

      implicit none

c     == global variables ==

#include "cal.h"

c     == routine arguments ==

      integer date(4)
      integer mythid

c     == local variables ==

      integer yy
      integer mm
      integer dd
      integer ss
      integer lp
      integer wd
      integer fac
      integer date_1
      integer date_2
      integer check_sign_1
      integer check_sign_2
      integer ierr

c     == end of interface ==

      fac = 1

c     Check the sign of the date.

      check_sign_1 = sign(1,date(1))
      check_sign_2 = sign(1,date(2))

      if ( check_sign_1*check_sign_2 .ge. 0 ) then
        if (date(1) .eq. 0) then
          date_1 = date(1)
          if (date(2) .lt. 0) then
            date_2 = -date(2)
            fac    = -1
          else
            date_2 = date(2)
            fac    = 1
          endif
        else if (date(1) .lt. 0) then
          date_1 = -date(1)
          date_2 = -date(2)
          fac    = -1
        else
          date_1 = date(1)
          date_2 = date(2)
          fac    = 1
        endif
      else

        ierr = 901
        call cal_PrintError( ierr, mythid )
        stop ' stopped in cal_ConvDate.'

      endif

c     Decompose the entries.
      if (date(4) .ne. -1) then
        yy = date_1/10000
        mm = mod(date_1/100,100)
        dd = mod(date_1,100)
      else
        yy = 0
        mm = 0
        dd = date_1
      endif
      ss = mod(date_2,100) +
     &     mod(date_2/100,100)*secondsperminute +
     &     date_2/10000*secondsperhour

c     Include the sign.
      yy = fac*yy
      mm = fac*mm
      dd = fac*dd
      ss = fac*ss

      lp = date(3)
      wd = date(4)

      return
      end

1	C $Header: /u/gcmpack/development/heimbach/ecco_env/pkg/cal/cal_convdate.F,v 1.4 2001/02/02 16:57:22 heimbach Exp $
2
3	#include "CAL_CPPOPTIONS.h"
4
5	subroutine cal_ConvDate(
6	I date,
7	O yy, mm, dd, ss,
8	O lp, wd,
9	I mythid
10	& )
11
12	c ==================================================================
13	c SUBROUTINE cal_ConvDate
14	c ==================================================================
15	c
16	c o Decompose the first part of a date array.
17	c
18	c started: Christian Eckert eckert@mit.edu 30-Jun-1999
19	c
20	c changed: Christian Eckert eckert@mit.edu 29-Dec-1999
21	c
22	c - restructured the original version in order to have a
23	c better interface to the MITgcmUV.
24	c
25	c Christian Eckert eckert@mit.edu 03-Feb-2000
26	c
27	c - Introduced new routine and function names, cal_<NAME>,
28	c for verion 0.1.3.
29	c
30	c ==================================================================
31	c SUBROUTINE cal_ConvDate
32	c ==================================================================
33
34	implicit none
35
36	c == global variables ==
37
38	#include "cal.h"
39
40	c == routine arguments ==
41
42	integer date(4)
43	integer mythid
44
45	c == local variables ==
46
47	integer yy
48	integer mm
49	integer dd
50	integer ss
51	integer lp
52	integer wd
53	integer fac
54	integer date_1
55	integer date_2
56	integer check_sign_1
57	integer check_sign_2
58	integer ierr
59
60	c == end of interface ==
61
62	fac = 1
63
64	c Check the sign of the date.
65
66	check_sign_1 = sign(1,date(1))
67	check_sign_2 = sign(1,date(2))
68
69	if ( check_sign_1*check_sign_2 .ge. 0 ) then
70	if (date(1) .eq. 0) then
71	date_1 = date(1)
72	if (date(2) .lt. 0) then
73	date_2 = -date(2)
74	fac = -1
75	else
76	date_2 = date(2)
77	fac = 1
78	endif
79	else if (date(1) .lt. 0) then
80	date_1 = -date(1)
81	date_2 = -date(2)
82	fac = -1
83	else
84	date_1 = date(1)
85	date_2 = date(2)
86	fac = 1
87	endif
88	else
89
90	ierr = 901
91	call cal_PrintError( ierr, mythid )
92	stop ' stopped in cal_ConvDate.'
93
94	endif
95
96	c Decompose the entries.
97	if (date(4) .ne. -1) then
98	yy = date_1/10000
99	mm = mod(date_1/100,100)
100	dd = mod(date_1,100)
101	else
102	yy = 0
103	mm = 0
104	dd = date_1
105	endif
106	ss = mod(date_2,100) +
107	& mod(date_2/100,100)*secondsperminute +
108	& date_2/10000*secondsperhour
109
110	c Include the sign.
111	yy = fac*yy
112	mm = fac*mm
113	dd = fac*dd
114	ss = fac*ss
115
116	lp = date(3)
117	wd = date(4)
118
119	return
120	end
121