| 1 |
MODULE calendar |
| 2 |
!$Header: /home/ioipsl/CVSROOT/IOIPSL/src/calendar.f90,v 2.0 2004/04/05 14:47:47 adm Exp $ |
| 3 |
!- |
| 4 |
!--------------------------------------------------------------------- |
| 5 |
!- This is the calendar which going to be used to do all |
| 6 |
!- calculations on time. Three types of calendars are possible : |
| 7 |
!- - gregorian : The normal calendar. The time origin for the |
| 8 |
!- julian day in this case is 24 Nov -4713 |
| 9 |
!- - nolap : A 365 day year without leap years. |
| 10 |
!- The origin for the julian days is in this case 1 Jan 0 |
| 11 |
!- - xxxd : Year of xxx days with month of equal length. |
| 12 |
!- The origin for the julian days is then also 1 Jan 0 |
| 13 |
!- As one can see it is difficult to go from one calendar to the other. |
| 14 |
!- All operations involving julian days will be wrong. |
| 15 |
!- This calendar will lock as soon as possible |
| 16 |
!- the length of the year and forbid any further modification. |
| 17 |
!- |
| 18 |
!- For the non leap-year calendar the method is still brute force. |
| 19 |
!- We need to find an Integer series which takes care of the length |
| 20 |
!- of the various month. (Jan) |
| 21 |
!- |
| 22 |
!- un_jour : one day in seconds |
| 23 |
!- un_an : one year in days |
| 24 |
!--------------------------------------------------------------------- |
| 25 |
USE stringop, ONLY : strlowercase |
| 26 |
USE errioipsl, ONLY : histerr |
| 27 |
!- |
| 28 |
PRIVATE |
| 29 |
PUBLIC :: ymds2ju,ju2ymds,tlen2itau,isittime,ioconf_calendar, & |
| 30 |
& ioget_calendar,itau2date,ioget_timestamp, & |
| 31 |
& ioconf_startdate,itau2ymds,time_diff,time_add |
| 32 |
!- |
| 33 |
INTERFACE ioget_calendar |
| 34 |
MODULE PROCEDURE & |
| 35 |
& ioget_calendar_real1,ioget_calendar_real2,ioget_calendar_str |
| 36 |
END INTERFACE |
| 37 |
!- |
| 38 |
INTERFACE ioconf_startdate |
| 39 |
MODULE PROCEDURE & |
| 40 |
& ioconf_startdate_simple,ioconf_startdate_internal, & |
| 41 |
& ioconf_startdate_ymds |
| 42 |
END INTERFACE |
| 43 |
!- |
| 44 |
REAL,PARAMETER :: un_jour = 86400.0 |
| 45 |
LOGICAL,SAVE :: lock_startdate = .FALSE. |
| 46 |
!- |
| 47 |
CHARACTER(LEN=30),SAVE :: time_stamp='XXXXXXXXXXXXXXXX' |
| 48 |
!- |
| 49 |
!- Description of calendar |
| 50 |
!- |
| 51 |
CHARACTER(LEN=20),SAVE :: calendar_used="gregorian" |
| 52 |
LOGICAL,SAVE :: lock_unan = .FALSE. |
| 53 |
REAL,SAVE :: un_an = 365.2425 |
| 54 |
INTEGER,SAVE :: mon_len(12)=(/31,28,31,30,31,30,31,31,30,31,30,31/) |
| 55 |
!- |
| 56 |
!- |
| 57 |
!- |
| 58 |
CHARACTER(LEN=3),PARAMETER :: & |
| 59 |
& cal(12) = (/'JAN','FEB','MAR','APR','MAY','JUN', & |
| 60 |
& 'JUL','AUG','SEP','OCT','NOV','DEC'/) |
| 61 |
!- |
| 62 |
REAL,SAVE :: start_day,start_sec |
| 63 |
|
| 64 |
CONTAINS |
| 65 |
|
| 66 |
SUBROUTINE ymds2ju (year,month,day,sec,julian) |
| 67 |
|
| 68 |
IMPLICIT NONE |
| 69 |
|
| 70 |
INTEGER,INTENT(IN) :: year,month,day |
| 71 |
REAL,INTENT(IN) :: sec |
| 72 |
|
| 73 |
REAL,INTENT(OUT) :: julian |
| 74 |
|
| 75 |
INTEGER :: julian_day |
| 76 |
REAL :: julian_sec |
| 77 |
!--------------------------------------------------------------------- |
| 78 |
CALL ymds2ju_internal (year,month,day,sec,julian_day,julian_sec) |
| 79 |
|
| 80 |
julian = julian_day+julian_sec / un_jour |
| 81 |
!--------------------- |
| 82 |
END SUBROUTINE ymds2ju |
| 83 |
|
| 84 |
!=== |
| 85 |
|
| 86 |
SUBROUTINE ymds2ju_internal (year,month,day,sec,julian_day,julian_sec) |
| 87 |
!--------------------------------------------------------------------- |
| 88 |
!- Converts year, month, day and seconds into a julian day |
| 89 |
|
| 90 |
!- In 1968 in a letter to the editor of Communications of the ACM |
| 91 |
!- (CACM, volume 11, number 10, October 1968, p.657) Henry F. Fliegel |
| 92 |
!- and Thomas C. Van Flandern presented such an algorithm. |
| 93 |
|
| 94 |
!- See also : http://www.magnet.ch/serendipity/hermetic/cal_stud/jdn.htm |
| 95 |
|
| 96 |
!- In the case of the Gregorian calendar we have chosen to use |
| 97 |
!- the Lilian day numbers. This is the day counter which starts |
| 98 |
!- on the 15th October 1582. |
| 99 |
!- This is the day at which Pope Gregory XIII introduced the |
| 100 |
!- Gregorian calendar. |
| 101 |
!- Compared to the true Julian calendar, which starts some |
| 102 |
!- 7980 years ago, the Lilian days are smaler and are dealt with |
| 103 |
!- easily on 32 bit machines. With the true Julian days you can only |
| 104 |
!- the fraction of the day in the real part to a precision of |
| 105 |
!- a 1/4 of a day with 32 bits. |
| 106 |
!--------------------------------------------------------------------- |
| 107 |
IMPLICIT NONE |
| 108 |
|
| 109 |
INTEGER,INTENT(IN) :: year,month,day |
| 110 |
REAL,INTENT(IN) :: sec |
| 111 |
|
| 112 |
INTEGER,INTENT(OUT) :: julian_day |
| 113 |
REAL,INTENT(OUT) :: julian_sec |
| 114 |
|
| 115 |
INTEGER :: jd,m,y,d,ml |
| 116 |
!--------------------------------------------------------------------- |
| 117 |
lock_unan = .TRUE. |
| 118 |
|
| 119 |
m = month |
| 120 |
y = year |
| 121 |
d = day |
| 122 |
|
| 123 |
!- We deduce the calendar from the length of the year as it |
| 124 |
!- is faster than an INDEX on the calendar variable. |
| 125 |
|
| 126 |
!- Gregorian |
| 127 |
IF ( (un_an > 365.0).AND.(un_an < 366.0) ) THEN |
| 128 |
jd = (1461*(y+4800+INT(( m-14 )/12)))/4 & |
| 129 |
& +(367*(m-2-12*(INT(( m-14 )/12))))/12 & |
| 130 |
& -(3*((y+4900+INT((m-14)/12))/100))/4 & |
| 131 |
& +d-32075 |
| 132 |
jd = jd-2299160 |
| 133 |
!- No leap or All leap |
| 134 |
ELSE IF (ABS(un_an-365.0) <= EPSILON(un_an) .OR. & |
| 135 |
& ABS(un_an-366.0) <= EPSILON(un_an)) THEN |
| 136 |
ml = SUM(mon_len(1:m-1)) |
| 137 |
jd = y*INT(un_an)+ml+(d-1) |
| 138 |
!- Calendar with regular month |
| 139 |
ELSE |
| 140 |
ml = INT(un_an)/12 |
| 141 |
jd = y*INT(un_an)+(m-1)*ml+(d-1) |
| 142 |
ENDIF |
| 143 |
|
| 144 |
julian_day = jd |
| 145 |
julian_sec = sec |
| 146 |
!------------------------------ |
| 147 |
END SUBROUTINE ymds2ju_internal |
| 148 |
!- |
| 149 |
!=== |
| 150 |
!- |
| 151 |
SUBROUTINE ju2ymds (julian,year,month,day,sec) |
| 152 |
!--------------------------------------------------------------------- |
| 153 |
IMPLICIT NONE |
| 154 |
|
| 155 |
REAL,INTENT(IN) :: julian |
| 156 |
|
| 157 |
INTEGER,INTENT(OUT) :: year,month,day |
| 158 |
REAL,INTENT(OUT) :: sec |
| 159 |
|
| 160 |
INTEGER :: julian_day |
| 161 |
REAL :: julian_sec |
| 162 |
!--------------------------------------------------------------------- |
| 163 |
julian_day = INT(julian) |
| 164 |
julian_sec = (julian-julian_day)*un_jour |
| 165 |
|
| 166 |
CALL ju2ymds_internal(julian_day,julian_sec,year,month,day,sec) |
| 167 |
!--------------------- |
| 168 |
END SUBROUTINE ju2ymds |
| 169 |
!- |
| 170 |
!=== |
| 171 |
!- |
| 172 |
SUBROUTINE ju2ymds_internal (julian_day,julian_sec,year,month,day,sec) |
| 173 |
!--------------------------------------------------------------------- |
| 174 |
!- This subroutine computes from the julian day the year, |
| 175 |
!- month, day and seconds |
| 176 |
|
| 177 |
!- In 1968 in a letter to the editor of Communications of the ACM |
| 178 |
!- (CACM, volume 11, number 10, October 1968, p.657) Henry F. Fliegel |
| 179 |
!- and Thomas C. Van Flandern presented such an algorithm. |
| 180 |
|
| 181 |
!- See also : http://www.magnet.ch/serendipity/hermetic/cal_stud/jdn.htm |
| 182 |
|
| 183 |
!- In the case of the Gregorian calendar we have chosen to use |
| 184 |
!- the Lilian day numbers. This is the day counter which starts |
| 185 |
!- on the 15th October 1582. This is the day at which Pope |
| 186 |
!- Gregory XIII introduced the Gregorian calendar. |
| 187 |
!- Compared to the true Julian calendar, which starts some 7980 |
| 188 |
!- years ago, the Lilian days are smaler and are dealt with easily |
| 189 |
!- on 32 bit machines. With the true Julian days you can only the |
| 190 |
!- fraction of the day in the real part to a precision of a 1/4 of |
| 191 |
!- a day with 32 bits. |
| 192 |
!--------------------------------------------------------------------- |
| 193 |
IMPLICIT NONE |
| 194 |
|
| 195 |
INTEGER,INTENT(IN) :: julian_day |
| 196 |
REAL,INTENT(IN) :: julian_sec |
| 197 |
|
| 198 |
INTEGER,INTENT(OUT) :: year,month,day |
| 199 |
REAL,INTENT(OUT) :: sec |
| 200 |
|
| 201 |
INTEGER :: l,n,i,jd,j,d,m,y,ml |
| 202 |
INTEGER :: add_day |
| 203 |
!--------------------------------------------------------------------- |
| 204 |
lock_unan = .TRUE. |
| 205 |
|
| 206 |
jd = julian_day |
| 207 |
sec = julian_sec |
| 208 |
IF (sec > un_jour) THEN |
| 209 |
add_day = INT(sec/un_jour) |
| 210 |
sec = sec-add_day*un_jour |
| 211 |
jd = jd+add_day |
| 212 |
ENDIF |
| 213 |
|
| 214 |
!- Gregorian |
| 215 |
IF ( (un_an > 365.0).AND.(un_an < 366.0) ) THEN |
| 216 |
jd = jd+2299160 |
| 217 |
|
| 218 |
l = jd+68569 |
| 219 |
n = (4*l)/146097 |
| 220 |
l = l-(146097*n+3)/4 |
| 221 |
i = (4000*(l+1))/1461001 |
| 222 |
l = l-(1461*i)/4+31 |
| 223 |
j = (80*l)/2447 |
| 224 |
d = l-(2447*j)/80 |
| 225 |
l = j/11 |
| 226 |
m = j+2-(12*l) |
| 227 |
y = 100*(n-49)+i+l |
| 228 |
!- No leap or All leap |
| 229 |
ELSE IF (ABS(un_an-365.0) <= EPSILON(un_an) .OR. & |
| 230 |
& ABS(un_an-366.0) <= EPSILON(un_an) ) THEN |
| 231 |
y = jd/INT(un_an) |
| 232 |
l = jd-y*INT(un_an) |
| 233 |
m = 1 |
| 234 |
ml = 0 |
| 235 |
DO WHILE (ml+mon_len(m) <= l) |
| 236 |
ml = ml+mon_len(m) |
| 237 |
m = m+1 |
| 238 |
ENDDO |
| 239 |
d = l-ml+1 |
| 240 |
!- others |
| 241 |
ELSE |
| 242 |
ml = INT(un_an)/12 |
| 243 |
y = jd/INT(un_an) |
| 244 |
l = jd-y*INT(un_an) |
| 245 |
m = (l/ml)+1 |
| 246 |
d = l-(m-1)*ml+1 |
| 247 |
ENDIF |
| 248 |
|
| 249 |
day = d |
| 250 |
month = m |
| 251 |
year = y |
| 252 |
!------------------------------ |
| 253 |
END SUBROUTINE ju2ymds_internal |
| 254 |
!- |
| 255 |
!=== |
| 256 |
!- |
| 257 |
SUBROUTINE tlen2itau (input_str,dt,date,itau) |
| 258 |
!--------------------------------------------------------------------- |
| 259 |
!- This subroutine transforms a sting containing a time length |
| 260 |
!- into a number of time steps. |
| 261 |
!- To do this operation the date (in julian days is needed as the |
| 262 |
!- length of the month varies. |
| 263 |
!- The following convention is used : |
| 264 |
!- n : n time steps |
| 265 |
!- nS : n seconds is transformed into itaus |
| 266 |
!- nH : n hours |
| 267 |
!- nD : n days |
| 268 |
!- nM : n month |
| 269 |
!- nY : n years |
| 270 |
!- Combinations are also possible |
| 271 |
!- nYmD : nyears plus m days ! |
| 272 |
!--------------------------------------------------------------------- |
| 273 |
IMPLICIT NONE |
| 274 |
|
| 275 |
CHARACTER(LEN=*),INTENT(IN) :: input_str |
| 276 |
REAL,INTENT(IN) :: dt,date |
| 277 |
|
| 278 |
INTEGER,INTENT(OUT) :: itau |
| 279 |
|
| 280 |
INTEGER :: y_pos,m_pos,d_pos,h_pos,s_pos |
| 281 |
INTEGER :: read_time |
| 282 |
CHARACTER(LEN=13) :: fmt |
| 283 |
CHARACTER(LEN=80) :: tmp_str |
| 284 |
|
| 285 |
INTEGER :: year,month,day |
| 286 |
REAL :: sec,date_new,dd,ss |
| 287 |
!--------------------------------------------------------------------- |
| 288 |
itau = 0 |
| 289 |
CALL ju2ymds (date,year,month,day,sec) |
| 290 |
|
| 291 |
y_pos = MAX(INDEX(input_str,'y'),INDEX(input_str,'Y')) |
| 292 |
m_pos = MAX(INDEX(input_str,'m'),INDEX(input_str,'M')) |
| 293 |
d_pos = MAX(INDEX(input_str,'d'),INDEX(input_str,'D')) |
| 294 |
h_pos = MAX(INDEX(input_str,'h'),INDEX(input_str,'H')) |
| 295 |
s_pos = MAX(INDEX(input_str,'s'),INDEX(input_str,'S')) |
| 296 |
|
| 297 |
IF (MAX(y_pos,m_pos,d_pos,s_pos) > 0) THEN |
| 298 |
tmp_str = input_str |
| 299 |
DO WHILE ( MAX(y_pos,m_pos,d_pos,s_pos) > 0) |
| 300 |
!---- WRITE(*,*) tmp_str |
| 301 |
!---- WRITE(*,*) y_pos,m_pos,d_pos,s_pos |
| 302 |
IF (y_pos > 0) THEN |
| 303 |
WRITE(fmt,'("(I",I10.10,")")') y_pos-1 |
| 304 |
READ(tmp_str(1:y_pos-1),fmt) read_time |
| 305 |
CALL ymds2ju (year+read_time,month,day,sec,date_new) |
| 306 |
dd = date_new-date |
| 307 |
ss = INT(dd)*un_jour+dd-INT(dd) |
| 308 |
itau = itau+NINT(ss/dt) |
| 309 |
tmp_str = tmp_str(y_pos+1:LEN_TRIM(tmp_str)) |
| 310 |
ELSE IF (m_pos > 0) THEN |
| 311 |
WRITE(fmt,'("(I",I10.10,")")') m_pos-1 |
| 312 |
READ(tmp_str(1:m_pos-1),fmt) read_time |
| 313 |
CALL ymds2ju (year,month+read_time,day,sec,date_new) |
| 314 |
dd = date_new-date |
| 315 |
ss = INT(dd)*un_jour+ dd-INT(dd) |
| 316 |
itau = itau+NINT(ss/dt) |
| 317 |
tmp_str = tmp_str(m_pos+1:LEN_TRIM(tmp_str)) |
| 318 |
ELSE IF (d_pos > 0) THEN |
| 319 |
WRITE(fmt,'("(I",I10.10,")")') d_pos-1 |
| 320 |
READ(tmp_str(1:d_pos-1),fmt) read_time |
| 321 |
itau = itau+NINT(read_time*un_jour/dt) |
| 322 |
tmp_str = tmp_str(d_pos+1:LEN_TRIM(tmp_str)) |
| 323 |
ELSE IF (h_pos > 0) THEN |
| 324 |
WRITE(fmt,'("(I",I10.10,")")') h_pos-1 |
| 325 |
READ(tmp_str(1:h_pos-1),fmt) read_time |
| 326 |
itau = itau+NINT(read_time*60.*60./dt) |
| 327 |
tmp_str = tmp_str(d_pos+1:LEN_TRIM(tmp_str)) |
| 328 |
ELSE IF (s_pos > 0) THEN |
| 329 |
WRITE(fmt,'("(I",I10.10,")")') s_pos-1 |
| 330 |
READ(tmp_str(1:s_pos-1),fmt) read_time |
| 331 |
itau = itau+NINT(read_time/dt) |
| 332 |
tmp_str = tmp_str(s_pos+1:LEN_TRIM(tmp_str)) |
| 333 |
ENDIF |
| 334 |
|
| 335 |
y_pos = MAX(INDEX(tmp_str,'y'),INDEX(tmp_str,'Y')) |
| 336 |
m_pos = MAX(INDEX(tmp_str,'m'),INDEX(tmp_str,'M')) |
| 337 |
d_pos = MAX(INDEX(tmp_str,'d'),INDEX(tmp_str,'D')) |
| 338 |
h_pos = MAX(INDEX(tmp_str,'h'),INDEX(tmp_str,'H')) |
| 339 |
s_pos = MAX(INDEX(tmp_str,'s'),INDEX(tmp_str,'S')) |
| 340 |
ENDDO |
| 341 |
ELSE |
| 342 |
WRITE(fmt,'("(I",I10.10,")")') LEN_TRIM(input_str) |
| 343 |
READ(input_str(1:LEN_TRIM(input_str)),fmt) itau |
| 344 |
ENDIF |
| 345 |
!----------------------- |
| 346 |
END SUBROUTINE tlen2itau |
| 347 |
!- |
| 348 |
!=== |
| 349 |
!- |
| 350 |
REAL FUNCTION itau2date (itau,date0,deltat) |
| 351 |
!--------------------------------------------------------------------- |
| 352 |
!- This function transforms itau into a date. The date whith which |
| 353 |
!- the time axis is going to be labeled |
| 354 |
|
| 355 |
!- INPUT |
| 356 |
!- itau : current time step |
| 357 |
!- date0 : Date at which itau was equal to 0 |
| 358 |
!- deltat : time step between itau s |
| 359 |
|
| 360 |
!- OUTPUT |
| 361 |
!- itau2date : Date for the given itau |
| 362 |
!--------------------------------------------------------------------- |
| 363 |
IMPLICIT NONE |
| 364 |
|
| 365 |
INTEGER :: itau |
| 366 |
REAL :: date0,deltat |
| 367 |
!--------------------------------------------------------------------- |
| 368 |
itau2date = REAL(itau)*deltat/un_jour+date0 |
| 369 |
!--------------------- |
| 370 |
END FUNCTION itau2date |
| 371 |
!- |
| 372 |
!=== |
| 373 |
!- |
| 374 |
SUBROUTINE itau2ymds (itau,deltat,year,month,date,sec) |
| 375 |
!--------------------------------------------------------------------- |
| 376 |
!- This subroutine transforms itau into a date. The date whith which |
| 377 |
!- the time axis is going to be labeled |
| 378 |
|
| 379 |
!- INPUT |
| 380 |
!- itau : current time step |
| 381 |
!- deltat : time step between itau s |
| 382 |
|
| 383 |
!- OUTPUT |
| 384 |
!- year : year |
| 385 |
!- month : month |
| 386 |
!- date : date |
| 387 |
!- sec : seconds since midnight |
| 388 |
!--------------------------------------------------------------------- |
| 389 |
IMPLICIT NONE |
| 390 |
|
| 391 |
INTEGER,INTENT(IN) :: itau |
| 392 |
REAL,INTENT(IN) :: deltat |
| 393 |
|
| 394 |
INTEGER,INTENT(OUT) :: year,month,date |
| 395 |
REAL,INTENT(OUT) :: sec |
| 396 |
|
| 397 |
INTEGER :: julian_day |
| 398 |
REAL :: julian_sec |
| 399 |
!--------------------------------------------------------------------- |
| 400 |
julian_day = start_day |
| 401 |
julian_sec = start_sec+REAL(itau)*deltat |
| 402 |
|
| 403 |
CALL ju2ymds_internal (julian_day,julian_sec,year,month,date,sec) |
| 404 |
!----------------------- |
| 405 |
END SUBROUTINE itau2ymds |
| 406 |
!- |
| 407 |
!=== |
| 408 |
!- |
| 409 |
SUBROUTINE isittime & |
| 410 |
& (itau,date0,dt,freq,last_action,last_check,do_action) |
| 411 |
!--------------------------------------------------------------------- |
| 412 |
!- This subroutine checks the time has come for a given action. |
| 413 |
!- This is computed from the current time-step(itau). |
| 414 |
!- Thus we need to have the time delta (dt), the frequency |
| 415 |
!- of the action (freq) and the last time it was done |
| 416 |
!- (last_action in units of itau). |
| 417 |
!- In order to extrapolate when will be the next check we need |
| 418 |
!- the time step of the last call (last_check). |
| 419 |
|
| 420 |
!- The test is done on the following condition : |
| 421 |
!- the distance from the current time to the time for the next |
| 422 |
!- action is smaller than the one from the next expected |
| 423 |
!- check to the next action. |
| 424 |
!- When the test is done on the time steps simplifactions make |
| 425 |
!- it more difficult to read in the code. |
| 426 |
!- For the real time case it is easier to understand ! |
| 427 |
!--------------------------------------------------------------------- |
| 428 |
IMPLICIT NONE |
| 429 |
|
| 430 |
INTEGER,INTENT(IN) :: itau |
| 431 |
REAL,INTENT(IN) :: dt,freq |
| 432 |
INTEGER,INTENT(IN) :: last_action,last_check |
| 433 |
REAL,INTENT(IN) :: date0 |
| 434 |
|
| 435 |
LOGICAL,INTENT(OUT) :: do_action |
| 436 |
|
| 437 |
REAL :: dt_action,dt_check |
| 438 |
REAL :: date_last_act,date_next_check,date_next_act, & |
| 439 |
& date_now,date_mp1,date_mpf |
| 440 |
INTEGER :: year,month,monthp1,day,next_check_itau,next_act_itau |
| 441 |
INTEGER :: yearp,dayp |
| 442 |
REAL :: sec,secp |
| 443 |
LOGICAL :: check = .FALSE. |
| 444 |
!--------------------------------------------------------------------- |
| 445 |
IF (check) THEN |
| 446 |
WRITE(*,*) & |
| 447 |
& "isittime 1.0 ",itau,date0,dt,freq,last_action,last_check |
| 448 |
ENDIF |
| 449 |
|
| 450 |
IF (last_check >= 0) THEN |
| 451 |
dt_action = (itau-last_action)*dt |
| 452 |
dt_check = (itau-last_check)*dt |
| 453 |
next_check_itau = itau+(itau-last_check) |
| 454 |
|
| 455 |
!-- We are dealing with frequencies in seconds and thus operation |
| 456 |
!-- can be done on the time steps. |
| 457 |
|
| 458 |
IF (freq > 0) THEN |
| 459 |
IF (ABS(dt_action-freq) <= ABS(dt_action+dt_check-freq)) THEN |
| 460 |
do_action = .TRUE. |
| 461 |
ELSE |
| 462 |
do_action = .FALSE. |
| 463 |
ENDIF |
| 464 |
|
| 465 |
!---- Here we deal with frequencies in month and work on julian days. |
| 466 |
|
| 467 |
ELSE |
| 468 |
date_now = itau2date (itau,date0,dt) |
| 469 |
date_last_act = itau2date (last_action,date0,dt) |
| 470 |
CALL ju2ymds (date_last_act,year,month,day,sec) |
| 471 |
monthp1 = month-freq |
| 472 |
yearp = year |
| 473 |
|
| 474 |
!---- Here we compute what logically should be the next month |
| 475 |
|
| 476 |
IF (month >= 13) THEN |
| 477 |
yearp = year+1 |
| 478 |
monthp1 = monthp1-12 |
| 479 |
ENDIF |
| 480 |
CALL ymds2ju (year,monthp1,day,sec,date_mpf) |
| 481 |
|
| 482 |
!---- But it could be that because of a shorter month or a bad |
| 483 |
!---- starting date that we end up further than we should be. |
| 484 |
!---- Thus we compute the first day of the next month. |
| 485 |
!---- We can not be beyond this date and if we are close |
| 486 |
!---- then we will take it as it is better. |
| 487 |
|
| 488 |
monthp1 = month+ABS(freq) |
| 489 |
yearp=year |
| 490 |
IF (monthp1 >= 13) THEN |
| 491 |
yearp = year+1 |
| 492 |
monthp1 = monthp1 -12 |
| 493 |
ENDIF |
| 494 |
dayp = 1 |
| 495 |
secp = 0.0 |
| 496 |
CALL ymds2ju (yearp,monthp1,dayp,secp,date_mp1) |
| 497 |
|
| 498 |
!---- If date_mp1 is smaller than date_mpf or only less than 4 days |
| 499 |
!---- larger then we take it. This needed to ensure that short month |
| 500 |
!---- like February do not mess up the thing ! |
| 501 |
|
| 502 |
IF (date_mp1-date_mpf < 4.) THEN |
| 503 |
date_next_act = date_mp1 |
| 504 |
ELSE |
| 505 |
date_next_act = date_mpf |
| 506 |
ENDIF |
| 507 |
date_next_check = itau2date (next_check_itau,date0,dt) |
| 508 |
|
| 509 |
!---- Transform the dates into time-steps for the needed precisions. |
| 510 |
|
| 511 |
next_act_itau = & |
| 512 |
& last_action+INT((date_next_act-date_last_act)*(un_jour/dt)) |
| 513 |
!----- |
| 514 |
IF ( ABS(itau-next_act_itau) & |
| 515 |
& <= ABS( next_check_itau-next_act_itau)) THEN |
| 516 |
do_action = .TRUE. |
| 517 |
IF (check) THEN |
| 518 |
WRITE(*,*) & |
| 519 |
& 'ACT-TIME : itau, next_act_itau, next_check_itau : ', & |
| 520 |
& itau,next_act_itau,next_check_itau |
| 521 |
CALL ju2ymds (date_now,year,month,day,sec) |
| 522 |
WRITE(*,*) 'ACT-TIME : y, m, d, s : ',year,month,day,sec |
| 523 |
WRITE(*,*) & |
| 524 |
& 'ACT-TIME : date_mp1, date_mpf : ',date_mp1,date_mpf |
| 525 |
ENDIF |
| 526 |
ELSE |
| 527 |
do_action = .FALSE. |
| 528 |
ENDIF |
| 529 |
ENDIF |
| 530 |
|
| 531 |
IF (check) THEN |
| 532 |
WRITE(*,*) "isittime 2.0 ", & |
| 533 |
& date_next_check,date_next_act,ABS(dt_action-freq), & |
| 534 |
& ABS(dt_action+dt_check-freq),dt_action,dt_check, & |
| 535 |
& next_check_itau,do_action |
| 536 |
ENDIF |
| 537 |
ELSE |
| 538 |
do_action=.FALSE. |
| 539 |
ENDIF |
| 540 |
!---------------------- |
| 541 |
END SUBROUTINE isittime |
| 542 |
!- |
| 543 |
!=== |
| 544 |
!- |
| 545 |
SUBROUTINE ioconf_calendar (str) |
| 546 |
!--------------------------------------------------------------------- |
| 547 |
!- This routine allows to configure the calendar to be used. |
| 548 |
!- This operation is only allowed once and the first call to |
| 549 |
!- ymds2ju or ju2ymsd will lock the current configuration. |
| 550 |
!- the argument to ioconf_calendar can be any of the following : |
| 551 |
!- - gregorian : This is the gregorian calendar (default here) |
| 552 |
!- - noleap : A calendar without leap years = 365 days |
| 553 |
!- - xxxd : A calendar of xxx days (has to be a modulo of 12) |
| 554 |
!- with 12 month of equal length |
| 555 |
!--------------------------------------------------------------------- |
| 556 |
IMPLICIT NONE |
| 557 |
|
| 558 |
CHARACTER(LEN=*),INTENT(IN) :: str |
| 559 |
|
| 560 |
INTEGER :: leng,ipos |
| 561 |
CHARACTER(LEN=10) :: str10 |
| 562 |
!--------------------------------------------------------------------- |
| 563 |
|
| 564 |
! 1.0 Clean up the sring ! |
| 565 |
|
| 566 |
CALL strlowercase (str) |
| 567 |
|
| 568 |
IF (.NOT.lock_unan) THEN |
| 569 |
!--- |
| 570 |
lock_unan=.TRUE. |
| 571 |
!--- |
| 572 |
SELECT CASE(str) |
| 573 |
CASE('gregorian') |
| 574 |
calendar_used = 'gregorian' |
| 575 |
un_an = 365.2425 |
| 576 |
mon_len(:)=(/31,28,31,30,31,30,31,31,30,31,30,31/) |
| 577 |
CASE('standard') |
| 578 |
calendar_used = 'gregorian' |
| 579 |
un_an = 365.2425 |
| 580 |
mon_len(:)=(/31,28,31,30,31,30,31,31,30,31,30,31/) |
| 581 |
CASE('proleptic_gregorian') |
| 582 |
calendar_used = 'gregorian' |
| 583 |
un_an = 365.2425 |
| 584 |
mon_len(:)=(/31,28,31,30,31,30,31,31,30,31,30,31/) |
| 585 |
CASE('noleap') |
| 586 |
calendar_used = 'noleap' |
| 587 |
un_an = 365.0 |
| 588 |
mon_len(:)=(/31,28,31,30,31,30,31,31,30,31,30,31/) |
| 589 |
CASE('365_day') |
| 590 |
calendar_used = 'noleap' |
| 591 |
un_an = 365.0 |
| 592 |
mon_len(:)=(/31,28,31,30,31,30,31,31,30,31,30,31/) |
| 593 |
CASE('365d') |
| 594 |
calendar_used = 'noleap' |
| 595 |
un_an = 365.0 |
| 596 |
mon_len(:)=(/31,28,31,30,31,30,31,31,30,31,30,31/) |
| 597 |
CASE('all_leap') |
| 598 |
calendar_used = 'all_leap' |
| 599 |
un_an = 366.0 |
| 600 |
mon_len(:)=(/31,29,31,30,31,30,31,31,30,31,30,31/) |
| 601 |
CASE('366_day') |
| 602 |
calendar_used = 'all_leap' |
| 603 |
un_an = 366.0 |
| 604 |
mon_len(:)=(/31,29,31,30,31,30,31,31,30,31,30,31/) |
| 605 |
CASE('366d') |
| 606 |
calendar_used = 'all_leap' |
| 607 |
un_an = 366.0 |
| 608 |
mon_len(:)=(/31,29,31,30,31,30,31,31,30,31,30,31/) |
| 609 |
CASE DEFAULT |
| 610 |
ipos = INDEX(str,'d') |
| 611 |
IF (ipos == 4) THEN |
| 612 |
READ(str(1:3),'(I3)') leng |
| 613 |
IF ( (MOD(leng,12) == 0).AND.(leng > 1) ) THEN |
| 614 |
calendar_used = str |
| 615 |
un_an = leng |
| 616 |
mon_len(:) = leng |
| 617 |
ELSE |
| 618 |
CALL histerr (3,'ioconf_calendar', & |
| 619 |
& 'The length of the year as to be a modulo of 12', & |
| 620 |
& 'so that it can be divided into 12 month of equal length', & |
| 621 |
& str) |
| 622 |
ENDIF |
| 623 |
ELSE |
| 624 |
CALL histerr (3,'ioconf_calendar', & |
| 625 |
& 'Unrecognized input, please ceck the man pages.',str,' ') |
| 626 |
ENDIF |
| 627 |
END SELECT |
| 628 |
ELSE |
| 629 |
WRITE(str10,'(f10.4)') un_an |
| 630 |
CALL histerr (2,'ioconf_calendar', & |
| 631 |
& 'The calendar was already used or configured. You are not', & |
| 632 |
& 'allowed to change it again. '// & |
| 633 |
& 'The following length of year is used :',str10) |
| 634 |
ENDIF |
| 635 |
!----------------------------- |
| 636 |
END SUBROUTINE ioconf_calendar |
| 637 |
!- |
| 638 |
!=== |
| 639 |
!- |
| 640 |
SUBROUTINE ioconf_startdate_simple (julian) |
| 641 |
!--------------------------------------------------------------------- |
| 642 |
IMPLICIT NONE |
| 643 |
|
| 644 |
REAL,INTENT(IN) :: julian |
| 645 |
|
| 646 |
INTEGER :: julian_day |
| 647 |
REAL :: julian_sec |
| 648 |
!--------------------------------------------------------------------- |
| 649 |
julian_day = INT(julian) |
| 650 |
julian_sec = (julian-julian_day)*un_jour |
| 651 |
|
| 652 |
CALL ioconf_startdate_internal (julian_day,julian_sec) |
| 653 |
!------------------------------------- |
| 654 |
END SUBROUTINE ioconf_startdate_simple |
| 655 |
!- |
| 656 |
!=== |
| 657 |
!- |
| 658 |
SUBROUTINE ioconf_startdate_ymds (year,month,day,sec) |
| 659 |
!--------------------------------------------------------------------- |
| 660 |
IMPLICIT NONE |
| 661 |
|
| 662 |
INTEGER,INTENT(IN) :: year,month,day |
| 663 |
REAL,INTENT(IN) :: sec |
| 664 |
|
| 665 |
INTEGER :: julian_day |
| 666 |
REAL :: julian_sec |
| 667 |
!--------------------------------------------------------------------- |
| 668 |
CALL ymds2ju_internal (year,month,day,sec,julian_day,julian_sec) |
| 669 |
|
| 670 |
CALL ioconf_startdate_internal (julian_day,julian_sec) |
| 671 |
!----------------------------------- |
| 672 |
END SUBROUTINE ioconf_startdate_ymds |
| 673 |
!- |
| 674 |
!=== |
| 675 |
!- |
| 676 |
SUBROUTINE ioconf_startdate_internal (julian_day,julian_sec) |
| 677 |
!--------------------------------------------------------------------- |
| 678 |
! This subroutine allows to set the startdate for later |
| 679 |
! use. It allows the applications to access the date directly from |
| 680 |
! the timestep. In order to avoid any problems the start date will |
| 681 |
! be locked and can not be changed once set. |
| 682 |
!--------------------------------------------------------------------- |
| 683 |
IMPLICIT NONE |
| 684 |
|
| 685 |
INTEGER,INTENT(IN) :: julian_day |
| 686 |
REAL,INTENT(IN) :: julian_sec |
| 687 |
|
| 688 |
CHARACTER(len=70) :: str70a,str70b |
| 689 |
!--------------------------------------------------------------------- |
| 690 |
IF (.NOT.lock_startdate) THEN |
| 691 |
lock_startdate = .TRUE. |
| 692 |
start_day = julian_day |
| 693 |
start_sec = julian_sec |
| 694 |
ELSE |
| 695 |
WRITE(str70a,'("The date you tried to set : ",f10.4)') & |
| 696 |
& julian_day,julian_sec/un_jour |
| 697 |
WRITE(str70b, & |
| 698 |
& '("The date which was already set in the calendar : ",f10.4)') & |
| 699 |
& start_day+start_sec/un_jour |
| 700 |
CALL histerr (2,'ioconf_startdate', & |
| 701 |
& 'The start date has already been set and you tried to change it', & |
| 702 |
& str70a,str70b) |
| 703 |
ENDIF |
| 704 |
|
| 705 |
lock_startdate = .TRUE. |
| 706 |
!--------------------------------------- |
| 707 |
END SUBROUTINE ioconf_startdate_internal |
| 708 |
!- |
| 709 |
!=== |
| 710 |
!- |
| 711 |
SUBROUTINE ioget_calendar_str (str) |
| 712 |
!--------------------------------------------------------------------- |
| 713 |
!- This subroutine returns the name of the calendar used here. |
| 714 |
!- Three options exist : |
| 715 |
!- - gregorian : This is the gregorian calendar (default here) |
| 716 |
!- - noleap : A calendar without leap years = 365 days |
| 717 |
!- - xxxd : A calendar of xxx days (has to be a modulo of 12) |
| 718 |
!- with 12 month of equal length |
| 719 |
|
| 720 |
!- This routine will lock the calendar. |
| 721 |
!- You do not want it to change after your inquiry. |
| 722 |
!--------------------------------------------------------------------- |
| 723 |
IMPLICIT NONE |
| 724 |
|
| 725 |
CHARACTER(LEN=*),INTENT(OUT) :: str |
| 726 |
!--------------------------------------------------------------------- |
| 727 |
lock_unan = .TRUE. |
| 728 |
|
| 729 |
str = calendar_used |
| 730 |
!-------------------------------- |
| 731 |
END SUBROUTINE ioget_calendar_str |
| 732 |
!- |
| 733 |
!=== |
| 734 |
!- |
| 735 |
SUBROUTINE ioget_calendar_real1 (long_an) |
| 736 |
!--------------------------------------------------------------------- |
| 737 |
!- This subroutine returns the name of the calendar used here. |
| 738 |
!- Three options exist : |
| 739 |
!- - gregorian : This is the gregorian calendar (default here) |
| 740 |
!- - noleap : A calendar without leap years = 365 days |
| 741 |
!- - xxxd : A calendar of xxx days (has to be a modulo of 12) |
| 742 |
!- with 12 month of equal length |
| 743 |
|
| 744 |
!- This routine will lock the calendar. |
| 745 |
!- You do not want it to change after your inquiry. |
| 746 |
!--------------------------------------------------------------------- |
| 747 |
IMPLICIT NONE |
| 748 |
|
| 749 |
REAL,INTENT(OUT) :: long_an |
| 750 |
!--------------------------------------------------------------------- |
| 751 |
lock_unan = .TRUE. |
| 752 |
|
| 753 |
long_an = un_an |
| 754 |
!---------------------------------- |
| 755 |
END SUBROUTINE ioget_calendar_real1 |
| 756 |
!- |
| 757 |
!=== |
| 758 |
!- |
| 759 |
SUBROUTINE ioget_calendar_real2 (long_an,long_jour) |
| 760 |
!--------------------------------------------------------------------- |
| 761 |
!- This subroutine returns the name of the calendar used here. |
| 762 |
!- Three options exist : |
| 763 |
!- - gregorian : This is the gregorian calendar (default here) |
| 764 |
!- - noleap : A calendar without leap years = 365 days |
| 765 |
!- - xxxd : A calendar of xxx days (has to be a modulo of 12) |
| 766 |
!- with 12 month of equal length |
| 767 |
|
| 768 |
!- This routine will lock the calendar. |
| 769 |
!- You do not want it to change after your inquiry. |
| 770 |
!--------------------------------------------------------------------- |
| 771 |
IMPLICIT NONE |
| 772 |
|
| 773 |
REAL,INTENT(OUT) :: long_an,long_jour |
| 774 |
!--------------------------------------------------------------------- |
| 775 |
lock_unan = .TRUE. |
| 776 |
|
| 777 |
long_an = un_an |
| 778 |
long_jour = un_jour |
| 779 |
!---------------------------------- |
| 780 |
END SUBROUTINE ioget_calendar_real2 |
| 781 |
!- |
| 782 |
!=== |
| 783 |
!- |
| 784 |
SUBROUTINE ioget_timestamp (string) |
| 785 |
!--------------------------------------------------------------------- |
| 786 |
IMPLICIT NONE |
| 787 |
|
| 788 |
CHARACTER(LEN=30),INTENT(OUT) :: string |
| 789 |
|
| 790 |
INTEGER :: date_time(8) |
| 791 |
CHARACTER(LEN=10) :: bigben(3) |
| 792 |
!--------------------------------------------------------------------- |
| 793 |
IF (INDEX(time_stamp,'XXXXXX') > 0) THEN |
| 794 |
CALL DATE_AND_TIME (bigben(1),bigben(2),bigben(3),date_time) |
| 795 |
!--- |
| 796 |
WRITE(time_stamp, & |
| 797 |
& "(I4.4,'-',A3,'-',I2.2,' ',I2.2,':',I2.2,':',I2.2,' GMT',a5)") & |
| 798 |
& date_time(1),cal(date_time(2)),date_time(3),date_time(5), & |
| 799 |
& date_time(6),date_time(7),bigben(3) |
| 800 |
ENDIF |
| 801 |
|
| 802 |
string = time_stamp |
| 803 |
!----------------------------- |
| 804 |
END SUBROUTINE ioget_timestamp |
| 805 |
!- |
| 806 |
!=== |
| 807 |
!- |
| 808 |
SUBROUTINE time_add & |
| 809 |
& (year_s,month_s,day_s,sec_s,sec_increment, & |
| 810 |
& year_e,month_e,day_e,sec_e) |
| 811 |
!--------------------------------------------------------------------- |
| 812 |
!- This subroutine allows to increment a date by a number of seconds. |
| 813 |
!--------------------------------------------------------------------- |
| 814 |
IMPLICIT NONE |
| 815 |
|
| 816 |
INTEGER,INTENT(IN) :: year_s,month_s,day_s |
| 817 |
REAL,INTENT(IN) :: sec_s |
| 818 |
!! |
| 819 |
! Time in seconds to be added to the date |
| 820 |
!! |
| 821 |
REAL,INTENT(IN) :: sec_increment |
| 822 |
|
| 823 |
INTEGER,INTENT(OUT) :: year_e,month_e,day_e |
| 824 |
REAL,INTENT(OUT) :: sec_e |
| 825 |
|
| 826 |
INTEGER :: julian_day |
| 827 |
REAL :: julian_sec |
| 828 |
!--------------------------------------------------------------------- |
| 829 |
CALL ymds2ju_internal & |
| 830 |
& (year_s,month_s,day_s,sec_s,julian_day,julian_sec) |
| 831 |
|
| 832 |
julian_sec = julian_sec+sec_increment |
| 833 |
|
| 834 |
CALL ju2ymds_internal & |
| 835 |
& (julian_day,julian_sec,year_e,month_e,day_e,sec_e) |
| 836 |
!---------------------- |
| 837 |
END SUBROUTINE time_add |
| 838 |
!- |
| 839 |
!=== |
| 840 |
!- |
| 841 |
SUBROUTINE time_diff & |
| 842 |
& (year_s,month_s,day_s,sec_s,year_e,month_e,day_e,sec_e,sec_diff) |
| 843 |
!--------------------------------------------------------------------- |
| 844 |
!- This subroutine allows to determine the number of seconds |
| 845 |
!- between two dates. |
| 846 |
!--------------------------------------------------------------------- |
| 847 |
IMPLICIT NONE |
| 848 |
|
| 849 |
INTEGER,INTENT(IN) :: year_s,month_s,day_s |
| 850 |
REAL,INTENT(IN) :: sec_s |
| 851 |
INTEGER,INTENT(IN) :: year_e,month_e,day_e |
| 852 |
REAL,INTENT(IN) :: sec_e |
| 853 |
!! |
| 854 |
! Time in seconds between the two dates |
| 855 |
!! |
| 856 |
REAL,INTENT(OUT) :: sec_diff |
| 857 |
|
| 858 |
INTEGER :: julian_day_s,julian_day_e,day_diff |
| 859 |
REAL :: julian_sec_s,julian_sec_e |
| 860 |
!--------------------------------------------------------------------- |
| 861 |
CALL ymds2ju_internal & |
| 862 |
& (year_s,month_s,day_s,sec_s,julian_day_s,julian_sec_s) |
| 863 |
CALL ymds2ju_internal & |
| 864 |
& (year_e,month_e,day_e,sec_e,julian_day_e,julian_sec_e) |
| 865 |
|
| 866 |
day_diff = julian_day_e-julian_day_s |
| 867 |
sec_diff = julian_sec_e-julian_sec_s |
| 868 |
|
| 869 |
sec_diff = sec_diff+day_diff*un_jour |
| 870 |
!----------------------- |
| 871 |
END SUBROUTINE time_diff |
| 872 |
!- |
| 873 |
!=== |
| 874 |
!- |
| 875 |
END MODULE calendar |
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