pkg/cal/cal_timeinterval.F

C $Header: /usr/local/gcmpack/MITgcm/pkg/cal/cal_timeinterval.F,v 1.1 2001/05/14 22:07:27 heimbach Exp $

#include "CAL_CPPOPTIONS.h"

      subroutine cal_TimeInterval(
     I                             timeint,
     I                             timeunit,
     O                             date,
     I                             mythid
     &                           )

c     ==================================================================
c     SUBROUTINE cal_TimeInterval
c     ==================================================================
c
c     o Create an array in date format given a time interval measured in
c       units of timeunit.
c
c       Available time units: 'secs'
c                             'model'
c
c       Fractions of seconds are not resolved in this version.
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_TimeInterval
c     ==================================================================

      implicit none

c     == global variables ==

#include "cal.h"

c     == routine arguments ==

      integer date(4)
      _RL     timeint
      character*(*) timeunit
      integer mythid

c     == local variables ==

      integer fac
      integer nsecs
      integer hhmmss
      integer ierr

c     == end of interface ==

      fac = 1
      if (timeint .lt. 0) fac = -1

      date(4) = -1
      date(3) =  0
      if (timeunit .eq. 'secs') then

        date(1) = int(timeint/float(secondsperday))
        nsecs   = int(timeint - float(date(1)) * float(secondsperday))

      else if (timeunit .eq. 'model') then

        date(1) = int(timeint*modelstep/float(secondsperday))
        nsecs   = int(timeint*modelstep -
     &                float(date(1)) * float(secondsperday))

      else

        ierr = 701
        call cal_PrintError( ierr, mythid )
        stop ' stopped in cal_TimeInterval.'

      endif

      hhmmss  = nsecs/secondsperminute
      date(2) = hhmmss/minutesperhour*10000 +
     &          (mod(fac*hhmmss,minutesperhour)*100 +
     &           mod(fac*nsecs,secondsperminute))*fac

      return
      end
1	C $Header: /usr/local/gcmpack/MITgcm/pkg/cal/cal_timeinterval.F,v 1.1 2001/05/14 22:07:27 heimbach Exp $
2
3	#include "CAL_CPPOPTIONS.h"
4
5	subroutine cal_TimeInterval(
6	I timeint,
7	I timeunit,
8	O date,
9	I mythid
10	& )
11
12	c ==================================================================
13	c SUBROUTINE cal_TimeInterval
14	c ==================================================================
15	c
16	c o Create an array in date format given a time interval measured in
17	c units of timeunit.
18	c
19	c Available time units: 'secs'
20	c 'model'
21	c
22	c Fractions of seconds are not resolved in this version.
23	c
24	c started: Christian Eckert eckert@mit.edu 30-Jun-1999
25	c
26	c changed: Christian Eckert eckert@mit.edu 29-Dec-1999
27	c
28	c - restructured the original version in order to have a
29	c better interface to the MITgcmUV.
30	c
31	c Christian Eckert eckert@mit.edu 03-Feb-2000
32	c
33	c - Introduced new routine and function names, cal_<NAME>,
34	c for verion 0.1.3.
35	c
36	c ==================================================================
37	c SUBROUTINE cal_TimeInterval
38	c ==================================================================
39
40	implicit none
41
42	c == global variables ==
43
44	#include "cal.h"
45
46	c == routine arguments ==
47
48	integer date(4)
49	_RL timeint
50	character() timeunit
51	integer mythid
52
53	c == local variables ==
54
55	integer fac
56	integer nsecs
57	integer hhmmss
58	integer ierr
59
60	c == end of interface ==
61
62	fac = 1
63	if (timeint .lt. 0) fac = -1
64
65	date(4) = -1
66	date(3) = 0
67	if (timeunit .eq. 'secs') then
68
69	date(1) = int(timeint/float(secondsperday))
70	nsecs = int(timeint - float(date(1)) * float(secondsperday))
71
72	else if (timeunit .eq. 'model') then
73
74	date(1) = int(timeint*modelstep/float(secondsperday))
75	nsecs = int(timeint*modelstep -
76	& float(date(1)) * float(secondsperday))
77
78	else
79
80	ierr = 701
81	call cal_PrintError( ierr, mythid )
82	stop ' stopped in cal_TimeInterval.'
83
84	endif
85
86	hhmmss = nsecs/secondsperminute
87	date(2) = hhmmss/minutesperhour*10000 +
88	& (mod(fachhmmss,minutesperhour)100 +
89	& mod(facnsecs,secondsperminute))fac
90
91	return
92	end