/[MITgcm]/MITgcm/pkg/cal/cal_subdates.F
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Contents of /MITgcm/pkg/cal/cal_subdates.F

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Revision 1.1 - (show annotations) (download)
Mon May 14 22:07:27 2001 UTC (23 years, 1 month ago) by heimbach
Branch: MAIN
CVS Tags: checkpoint46n_post, checkpoint47e_post, checkpoint44e_post, checkpoint46l_post, checkpoint46g_pre, checkpoint47c_post, release1_p13_pre, checkpoint50c_post, checkpoint46f_post, checkpoint48e_post, checkpoint50c_pre, checkpoint44f_post, checkpoint46b_post, checkpoint43a-release1mods, ecco_c50_e32, ecco_c50_e33, ecco_c50_e30, ecco_c50_e31, release1_p13, checkpoint40pre3, checkpoint40pre1, checkpoint40pre7, checkpoint40pre6, checkpoint48i_post, checkpoint40pre9, checkpoint40pre8, checkpoint46l_pre, chkpt44d_post, checkpoint51, checkpoint50, release1_p8, release1_p9, checkpoint50d_post, release1_p1, release1_p2, release1_p3, release1_p4, release1_p5, release1_p6, release1_p7, checkpoint50b_pre, checkpoint44e_pre, checkpoint51f_post, release1_b1, ecco_c51_e34d, ecco_c51_e34e, ecco_c51_e34f, ecco_c51_e34g, ecco_c51_e34a, ecco_c51_e34b, ecco_c51_e34c, checkpoint48b_post, checkpoint43, checkpoint51d_post, checkpoint48c_pre, checkpoint47d_pre, release1_chkpt44d_post, checkpoint47a_post, checkpoint48d_pre, checkpoint51j_post, checkpoint47i_post, checkpoint47d_post, icebear5, icebear4, icebear3, icebear2, checkpoint46d_pre, checkpoint40pre2, checkpoint48d_post, release1-branch_tutorials, checkpoint48f_post, checkpoint45d_post, checkpoint46j_pre, chkpt44a_post, checkpoint44h_pre, checkpoint48h_post, checkpoint40pre4, ecco_c50_e29, checkpoint51b_pre, checkpoint46a_post, checkpoint47g_post, checkpoint46j_post, checkpoint51h_pre, checkpoint46k_post, ecco_c50_e28, chkpt44c_pre, checkpoint48a_post, checkpoint45a_post, checkpoint50f_post, checkpoint50a_post, checkpoint50f_pre, ecco_c44_e19, ecco_c44_e18, ecco_c44_e17, ecco_c44_e16, release1_p12, release1_p10, release1_p11, release1_p16, release1_p17, release1_p14, release1_p15, checkpoint47j_post, ecco_c50_e33a, branch-exfmods-tag, checkpoint44g_post, branchpoint-genmake2, checkpoint46e_pre, checkpoint48c_post, checkpoint45b_post, checkpoint46b_pre, release1-branch-end, release1_final_v1, checkpoint51b_post, checkpoint51c_post, checkpoint46c_pre, checkpoint46, checkpoint47b_post, checkpoint44b_post, ecco_c51_e34, checkpoint46h_pre, checkpoint46m_post, checkpoint46a_pre, checkpoint50g_post, checkpoint45c_post, ecco_ice2, ecco_ice1, checkpoint44h_post, checkpoint46g_post, release1_p12_pre, checkpoint39, ecco_c44_e22, checkpoint50h_post, checkpoint50e_pre, checkpoint50i_post, ecco_c44_e25, checkpoint51i_pre, checkpoint40pre5, checkpoint47f_post, checkpoint50e_post, chkpt44a_pre, checkpoint46i_post, ecco_c44_e23, ecco_c44_e20, ecco_c44_e21, ecco_c44_e26, ecco_c44_e27, ecco_c44_e24, checkpoint46c_post, ecco-branch-mod1, ecco-branch-mod2, ecco-branch-mod3, ecco-branch-mod4, ecco-branch-mod5, checkpoint50d_pre, checkpoint46e_post, release1_beta1, checkpoint51e_post, checkpoint44b_pre, checkpoint42, checkpoint40, checkpoint41, checkpoint47, checkpoint44, checkpoint45, checkpoint48, checkpoint49, checkpoint46h_post, checkpoint51f_pre, chkpt44c_post, checkpoint48g_post, checkpoint47h_post, checkpoint44f_pre, checkpoint51g_post, checkpoint46d_post, checkpoint50b_post, release1-branch_branchpoint, checkpoint51a_post
Branch point for: c24_e25_ice, branch-exfmods-curt, release1_final, release1-branch, branch-genmake2, release1, ecco-branch, release1_50yr, icebear, release1_coupled 
Added calendar package.
Not currently supported by mitgcm, i.e. disabled by default.
1 C $Header: /u/gcmpack/development/heimbach/ecco_env/pkg/cal/cal_subdates.F,v 1.4 2001/02/02 16:57:22 heimbach Exp $
2
3 #include "CAL_CPPOPTIONS.h"
4
5 subroutine cal_SubDates(
6 I finaldate,
7 I initialdate,
8 O diffdate,
9 I mythid
10 & )
11
12 c ==================================================================
13 c SUBROUTINE cal_SubDates
14 c ==================================================================
15 c
16 c o Subtract two dates. In case calendar dates are given finaldate
17 c must be after initialdate.
18 c
19 c started: Christian Eckert eckert@mit.edu 30-Jun-1999
20 c
21 c changed: Christian Eckert eckert@mit.edu 29-Dec-1999
22 c
23 c - restructured the original version in order to have a
24 c better interface to the MITgcmUV.
25 c
26 c Christian Eckert eckert@mit.edu 03-Feb-2000
27 c
28 c - Introduced new routine and function names, cal_<NAME>,
29 c for verion 0.1.3.
30 c
31 c ==================================================================
32 c SUBROUTINE cal_SubDates
33 c ==================================================================
34
35 implicit none
36
37 c == global variables ==
38
39 #include "cal.h"
40
41 c == routine arguments ==
42
43 integer finaldate(4)
44 integer initialdate(4)
45 integer diffdate(4)
46 integer mythid
47
48 c == local variables ==
49
50 integer workdate(4)
51 integer ierr
52
53 c == end of interface ==
54
55 if ((initialdate(4) .gt. 0) .eqv.
56 & ( finaldate(4) .gt. 0)) then
57
58
59 if (initialdate(4) .eq. -1) then
60 c The time interval is subtracted.
61 workdate(1) = -initialdate(1)
62 workdate(2) = -initialdate(2)
63 workdate(3) = 0
64 workdate(4) = -1
65 call cal_AddTime( finaldate, workdate, diffdate, mythid )
66 else
67 c The time interval between initial and final date is calculated.
68 call cal_TimePassed(
69 & initialdate, finaldate, diffdate, mythid )
70 endif
71 else
72
73 ierr = 801
74 call cal_PrintError( ierr, mythid )
75 stop ' stopped in cal_SubDates.'
76
77 endif
78
79 100 continue
80
81 return
82 end
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