[325] | 1 | MODULE daymod |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE daymod *** |
---|
| 4 | !! Ocean : calendar |
---|
| 5 | !!===================================================================== |
---|
| 6 | |
---|
| 7 | !!---------------------------------------------------------------------- |
---|
| 8 | !! day : calendar |
---|
| 9 | !!---------------------------------------------------------------------- |
---|
| 10 | !! * Modules used |
---|
| 11 | USE dom_oce ! ocean space and time domain |
---|
| 12 | USE phycst ! physical constants |
---|
| 13 | USE in_out_manager ! I/O manager |
---|
| 14 | |
---|
| 15 | IMPLICIT NONE |
---|
| 16 | PRIVATE |
---|
| 17 | |
---|
| 18 | !! * Routine accessibility |
---|
| 19 | PUBLIC day ! called by step.F90 |
---|
| 20 | |
---|
| 21 | !! * Shared module variables |
---|
| 22 | INTEGER , PUBLIC :: & !: |
---|
| 23 | nyear , & !: current year |
---|
| 24 | nmonth , & !: current month |
---|
| 25 | nday , & !: current day of the month |
---|
| 26 | nday_year , & !: curent day counted from jan 1st of the current year |
---|
| 27 | ndastp !: time step date in year/month/day aammjj |
---|
| 28 | REAL(wp), PUBLIC :: & !: |
---|
| 29 | adatrj , & !: number of elapsed days since the begining of the run |
---|
| 30 | adatrj0 !: value of adatrj at nit000-1 (before the present run). |
---|
| 31 | ! ! it is the accumulated duration of previous runs |
---|
| 32 | ! ! that may have been run with different time steps. |
---|
| 33 | !!---------------------------------------------------------------------- |
---|
| 34 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
---|
[719] | 35 | !! $Header$ |
---|
[325] | 36 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
---|
| 37 | !!---------------------------------------------------------------------- |
---|
| 38 | |
---|
| 39 | CONTAINS |
---|
| 40 | |
---|
| 41 | SUBROUTINE day( kt ) |
---|
| 42 | !!---------------------------------------------------------------------- |
---|
| 43 | !! *** ROUTINE day *** |
---|
| 44 | !! |
---|
| 45 | !! ** Purpose : Compute the date with a day iteration IF necessary. |
---|
| 46 | !! |
---|
| 47 | !! ** Method : - ??? |
---|
| 48 | !! |
---|
| 49 | !! ** Action : - nyear : current year |
---|
| 50 | !! - nmonth : current month of the year nyear |
---|
| 51 | !! - nday : current day of the month nmonth |
---|
| 52 | !! - nday_year : current day of the year nyear |
---|
| 53 | !! - ndastp : =nyear*10000+nmonth*100+nday |
---|
| 54 | !! - adatrj : date in days since the beginning of the run |
---|
| 55 | !! |
---|
| 56 | !! History : |
---|
| 57 | !! ! 94-09 (M. Pontaud M. Imbard) Original code |
---|
| 58 | !! ! 97-03 (O. Marti) |
---|
| 59 | !! ! 97-05 (G. Madec) |
---|
| 60 | !! ! 97-08 (M. Imbard) |
---|
| 61 | !! 9.0 ! 03-09 (G. Madec) F90 + nyear, nmonth, nday |
---|
| 62 | !! ! 04-01 (A.M. Treguier) new calculation based on adatrj |
---|
| 63 | !!---------------------------------------------------------------------- |
---|
| 64 | !! * Arguments |
---|
| 65 | INTEGER, INTENT( in ) :: kt ! ocean time-step indices |
---|
| 66 | |
---|
| 67 | !! * Local declarations |
---|
| 68 | INTEGER :: js ! dummy loop indice |
---|
| 69 | INTEGER :: iend, iday0, iday1 ! temporary integers |
---|
| 70 | REAL(wp) :: zadatrjn, zadatrjb ! adatrj at timestep kt-1 and kt-2 |
---|
| 71 | CHARACTER (len=25) :: charout |
---|
| 72 | !!---------------------------------------------------------------------- |
---|
| 73 | |
---|
| 74 | ! 0. initialization of adatrj0 and nday, nmonth,nyear, nday_year. |
---|
| 75 | ! ndastp has been initialized in domain.F90 or restart.F90 |
---|
| 76 | !----------------------------------------------------------------- |
---|
| 77 | |
---|
| 78 | IF( kt == nit000 ) THEN |
---|
| 79 | |
---|
| 80 | IF( .NOT.ln_rstart ) adatrj0 = 0.e0 ! adatrj0 initialized in rst_read when restart |
---|
| 81 | |
---|
| 82 | adatrj = adatrj0 |
---|
| 83 | nyear = ndastp / 10000 |
---|
| 84 | nmonth = ( ndastp - (nyear * 10000) ) / 100 |
---|
| 85 | nday = ndastp - (nyear * 10000) - ( nmonth * 100 ) |
---|
| 86 | |
---|
| 87 | ! Calculates nday_year, day since january 1st (useful to read daily forcing fields) |
---|
| 88 | nday_year = nday |
---|
| 89 | ! ! accumulates days of previous months of this year |
---|
| 90 | DO js = 1, nmonth-1 |
---|
| 91 | IF( nleapy == 1 .AND. MOD( nyear, 4 ) == 0 ) THEN |
---|
| 92 | nday_year = nday_year + nbiss(js) |
---|
| 93 | ELSE |
---|
| 94 | nday_year = nday_year + nobis(js) |
---|
| 95 | ENDIF |
---|
| 96 | END DO |
---|
| 97 | |
---|
| 98 | ENDIF |
---|
| 99 | |
---|
| 100 | ! I. calculates adatrj, zadatrjn, zadatrjb. |
---|
| 101 | ! ------------------------------------------------------------------ |
---|
| 102 | |
---|
| 103 | adatrj = adatrj0 + ( kt - nit000 + 1 ) * rdttra(1) / rday |
---|
| 104 | zadatrjn = adatrj0 + ( kt - nit000 ) * rdttra(1) / rday |
---|
| 105 | zadatrjb = adatrj0 + ( kt - nit000 - 1 ) * rdttra(1) / rday |
---|
| 106 | |
---|
| 107 | |
---|
| 108 | ! II. increment the date. The date corresponds to 'now' variables (kt-1), |
---|
| 109 | ! which is the time step of forcing fields. |
---|
| 110 | ! Do not do this at nit000 unless nrstdt= 2 |
---|
| 111 | ! In that case ndastp (read in restart) was for step nit000-2 |
---|
| 112 | ! ------------------------------------------------------------------- |
---|
| 113 | |
---|
| 114 | iday0 = INT( zadatrjb ) |
---|
| 115 | iday1 = INT( zadatrjn ) |
---|
| 116 | |
---|
| 117 | IF( iday1 - iday0 >= 1 .AND. ( kt /= nit000 .OR. nrstdt == 2 ) ) THEN |
---|
| 118 | |
---|
| 119 | ! increase calendar |
---|
| 120 | nyear = ndastp / 10000 |
---|
| 121 | nmonth = ( ndastp - (nyear * 10000) ) / 100 |
---|
| 122 | nday = ndastp - (nyear * 10000) - ( nmonth * 100 ) |
---|
| 123 | nday = nday + 1 |
---|
| 124 | IF( nleapy == 1 .AND. MOD( nyear, 4 ) == 0 ) THEN |
---|
| 125 | iend = nbiss(nmonth) |
---|
| 126 | ELSEIF( nleapy > 1 ) THEN |
---|
| 127 | iend = nleapy |
---|
| 128 | ELSE |
---|
| 129 | iend = nobis(nmonth) |
---|
| 130 | ENDIF |
---|
| 131 | IF( nday == iend + 1 ) THEN |
---|
| 132 | nday = 1 |
---|
| 133 | nmonth = nmonth + 1 |
---|
| 134 | IF( nmonth == 13 ) THEN |
---|
| 135 | nmonth = 1 |
---|
| 136 | nyear = nyear + 1 |
---|
| 137 | ENDIF |
---|
| 138 | ENDIF |
---|
| 139 | ndastp = nyear * 10000 + nmonth * 100 + nday |
---|
| 140 | |
---|
| 141 | ! Calculates nday_year, day since january 1st (useful to read daily forcing fields) |
---|
| 142 | nday_year = nday |
---|
| 143 | ! ! accumulates days of previous months of this year |
---|
| 144 | DO js = 1, nmonth-1 |
---|
| 145 | IF( nleapy == 1 .AND. MOD( nyear, 4 ) == 0 ) THEN |
---|
| 146 | nday_year = nday_year + nbiss(js) |
---|
| 147 | ELSE |
---|
| 148 | nday_year = nday_year + nobis(js) |
---|
| 149 | ENDIF |
---|
| 150 | END DO |
---|
| 151 | |
---|
| 152 | IF(lwp) WRITE(numout,*)' ==============>> time-step =', kt, ' New day, DATE= ', & |
---|
| 153 | & nyear, '/', nmonth, '/', nday, 'nday_year:', nday_year |
---|
| 154 | ENDIF |
---|
| 155 | |
---|
| 156 | END SUBROUTINE day |
---|
| 157 | |
---|
| 158 | !!====================================================================== |
---|
| 159 | END MODULE daymod |
---|