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

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Revision 1.1 - (show annotations) (download)
Mon May 14 22:07:26 2001 UTC (23 years 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_isleap.F,v 1.4 2001/02/02 16:57:22 heimbach Exp $
2
3 #include "CAL_CPPOPTIONS.h"
4
5 integer function cal_IsLeap(
6 I year,
7 I mythid
8 & )
9
10 c ==================================================================
11 c FUNCTION cal_IsLeap
12 c ==================================================================
13 c
14 c o In case the Gregorian calendar is used determine whether the
15 c given year is a leap year or not.
16 c
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 FUNCTION cal_IsLeap
32 c ==================================================================
33
34 implicit none
35
36 c == global variables ==
37
38 #include "cal.h"
39
40 c == routine arguments ==
41
42 integer year
43 integer mythid
44
45 c == end of interface ==
46
47 if ( usingGregorianCalendar ) then
48 if ( mod(year,4) .ne. 0 ) then
49 cal_IsLeap = 1
50 else
51 cal_IsLeap = 2
52 if ( (mod(year,100) .eq. 0) .and.
53 & (mod(year,400) .ne. 0) ) then
54 cal_IsLeap = 1
55 endif
56 endif
57 else if ( usingJulianCalendar ) then
58 if ( mod(year,4) .ne. 0 ) then
59 cal_IsLeap = 1
60 else
61 cal_IsLeap = 2
62 endif
63 else
64 cal_IsLeap = 1
65 endif
66
67 return
68 end
69
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