source:
LMDZ4/tags/pre_parallel/libf/dyn3dpar/juldate.F
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1 | ! |
2 | ! $Header$ |
3 | ! |
4 | subroutine juldate(ian,imoi,ijou,oh,om,os,tjd,tjdsec) |
5 | c Sous-routine de changement de date: |
6 | c gregorien>>>date julienne |
7 | c En entree:an,mois,jour,heure,min.,sec. |
8 | c En sortie:tjd |
9 | implicit real (a-h,o-z) |
10 | frac=((os/60.+om)/60.+oh)/24. |
11 | ojou=dfloat(ijou)+frac |
12 | year=dfloat(ian) |
13 | rmon=dfloat(imoi) |
14 | if (imoi .le. 2) then |
15 | year=year-1. |
16 | rmon=rmon+12. |
17 | endif |
18 | cf=year+(rmon/100.)+(ojou/10000.) |
19 | if (cf .ge. 1582.1015) then |
20 | a=int(year/100) |
21 | b=2-a+int(a/4) |
22 | else |
23 | b=0 |
24 | endif |
25 | tjd=int(365.25*year)+int(30.6001*(rmon+1))+int(ojou) |
26 | + +1720994.5+b |
27 | tjdsec=(ojou-int(ojou))+(tjd-int(tjd)) |
28 | tjd=int(tjd)+int(tjdsec) |
29 | tjdsec=tjdsec-int(tjdsec) |
30 | return |
31 | end |
32 | |
33 |
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