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wwm_mjdv2.F90
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#include "wwm_functions.h"
!**********************************************************************
!* *
!**********************************************************************
#if !defined MODEL_COUPLING_ATM_WAV && !defined MODEL_COUPLING_OCN_WAV
SUBROUTINE DATE2JD(year, month, day, hour, min, sec, eJD)
USE DATAPOOL
IMPLICIT NONE
integer, intent(in) :: year, month, day, hour, min, sec
real(rkind), intent(out) :: eJD
real(rkind) :: eJDbase, eFracDay
integer a, y, m
a = floor((MyREAL(14) - MyREAL(month))/MyREAL(12))
y = year + 4800 - a
m = month + 12*a - 3
! For a date in the Gregorian calendar:
eJDbase = MyREAL(day) &
& + MyREAL(floor((MyREAL(153)*MyREAL(m) + MyREAL(2))/MyREAL(5))) &
& + MyREAL(y)*MyREAL(365) &
& + MyREAL(floor(MyREAL(y)/MyREAL(4))) &
& - MyREAL(floor(MyREAL(y)/MyREAL(100))) &
& + MyREAL(floor(MyREAL(y)/MyREAL(400))) - MyREAL(32045)
eFracDay=(MyREAL(sec) + &
& MyREAL(60)*MyREAL(min) + &
& MyREAL(3600)*(MyREAL(hour) - MyREAL(12)) &
& )/MyREAL(86400)
eJD=eJDbase + eFracDay
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE DATE_ConvertSix2mjd(year, month, day, hour, min, sec, eMJD)
USE DATAPOOL
IMPLICIT NONE
integer, intent(in) :: year, month, day, hour, min, sec
real(rkind), intent(out) :: eMJD
real(rkind) :: eJD1, eJD2
CALL DATE2JD(year, month, day, hour, min, sec, eJD1)
! WRITE(STAT%FHNDL, *) 'year =', year
! WRITE(STAT%FHNDL, *) 'month=', month
! WRITE(STAT%FHNDL, *) 'day =', day
! WRITE(STAT%FHNDL, *) 'hour =', hour
! WRITE(STAT%FHNDL, *) 'min =', min
! WRITE(STAT%FHNDL, *) 'sec =', sec
! WRITE(STAT%FHNDL, *) 'eJD1 =', eJD1
! CALL DATE2JD(1968, 5, 23, 0, 0, 0, eJD2)
CALL DATE2JD(1858, 11, 17, 0, 0, 0, eJD2)
eMJD=eJD1-eJD2
! WRITE(STAT%FHNDL, *) 'eMJD =', eMJD
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE DATE_ConvertString2six(year, month, day, hour, min, sec, eTimeStr)
USE DATAPOOL
IMPLICIT NONE
integer, intent(out) :: year, month, day, hour, min, sec
character(len=15), intent(in) :: eTimeStr
character(len=4) eYear
character(len=2) eMonth, eDay, eHour, eMin, eSec
eYear(1:1) = eTimeStr(1:1)
eYear(2:2) = eTimeStr(2:2)
eYear(3:3) = eTimeStr(3:3)
eYear(4:4) = eTimeStr(4:4)
eMonth(1:1) = eTimeStr(5:5)
eMonth(2:2) = eTimeStr(6:6)
eDay(1:1) = eTimeStr(7:7)
eDay(2:2) = eTimeStr(8:8)
eHour(1:1) = eTimeStr(10:10)
eHour(2:2) = eTimeStr(11:11)
eMin(1:1) = eTimeStr(12:12)
eMin(2:2) = eTimeStr(13:13)
eSec(1:1) = eTimeStr(14:14)
eSec(2:2) = eTimeStr(15:15)
! Print *, 'eYear=', eYear
read(eYear , '(i10)' ) year
! Print *, 'After 1'
read(eMonth, '(i10)' ) month
! Print *, 'After 2'
! Print *, 'eDay=', eDay
read(eDay , '(i10)' ) day
! Print *, 'After 3'
read(eHour , '(i10)' ) hour
! Print *, 'After 4'
read(eMin , '(i10)' ) min
! Print *, 'After 5'
read(eSec , '(i10)' ) sec
! Print *, 'After 6'
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE DATE_ConvertSix2string(year, month, day, hour, min, sec, eTimeStr)
USE DATAPOOL
IMPLICIT NONE
integer, intent(in) :: year, month, day, hour, min, sec
character(len=15), intent(out) :: eTimeStr
WRITE(eTimeStr, 20) year, month, day, hour, min, sec
20 FORMAT (i4.4, i2.2, i2.2, '.', i2.2, i2.2, i2.2)
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE MONTH_LEN(year, month, lenmonth)
IMPLICIT NONE
integer, intent(in) :: year, month
integer, intent(out) :: lenmonth
IF ((month .eq. 1).or.(month .eq. 3).or.(month .eq. 5).or.(month .eq. 7).or.(month .eq. 8).or.(month .eq. 10).or.(month .eq. 12)) THEN
lenmonth=31
END IF
IF ((month .eq. 4).or.(month .eq. 6).or.(month .eq. 9).or.(month .eq. 11)) THEN
lenmonth=30
END IF
IF (month .eq. 2) THEN
IF (MOD(year, 4) .ne. 0) THEN
lenmonth=28
ELSE
IF (MOD(year, 100) .ne. 0) THEN
lenmonth=29
ELSE
IF (MOD(year, 400) .ne. 0) THEN
lenmonth=28
ELSE
lenmonth=29
END IF
END IF
END IF
END IF
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE JD2DATE(year, month, day, hour, min, sec, eJD)
! The following algorithm is from the Calendar FAQ.
USE DATAPOOL
IMPLICIT NONE
integer, intent(out) :: year, month, day, hour, min, sec
real(rkind), intent(in) :: eJD
integer ijd, a, b, c, d, e, m
integer secNear, lenmonth
real(rkind) :: fjd, second
ijd = floor(eJD + 0.5_rkind)
!
a = ijd + 32044
b = floor((MyREAL(4)*MyREAL(a) + MyREAL(3)) / MyREAL(146097))
c = a - floor((MyREAL(b) * MyREAL(146097)) / MyREAL(4))
!
d = floor((MyREAL(4)*MyREAL(c) + MyREAL(3)) / MyREAL(1461))
e = c - floor((MyREAL(1461)*MyREAL(d)) / MyREAL(4))
m = floor((MyREAL(5) * MyREAL(e) + MyREAL(2)) / MyREAL(153))
!
day = e - floor((MyREAL(153) * MyREAL(m) + MyREAL(2)) / MyREAL(5)) + 1
month = m + 3 - 12 * floor(MyREAL(m) / MyREAL(10))
year = b * 100 + d - 4800 + floor(MyREAL(m) / MyREAL(10))
!
fjd = eJD - MyREAL(ijd) + 0.5_rkind
second = MyREAL(86400) * fjd
hour = floor(second/MyREAL(3600))
second = second - MyREAL(3600)*MyREAL(hour)
min = floor(second/MyREAL(60))
sec = floor(second - MyREAL(60)*min)
!
! Now renormalizing
!
secNear=NINT(second - MyREAL(60)*min)
IF (secNear .eq. 60) THEN
sec=0
min=min+1
END IF
IF (min .eq. 60) THEN
min=0
hour=hour+1
END IF
IF (hour .eq. 24) THEN
hour=0
day=day+1
END IF
CALL MONTH_LEN(year, month, lenmonth)
IF (day .eq. lenmonth+1) THEN
day=1
month=month+1
END IF
IF (month .eq. 13) THEN
month=1
year=year+1
END IF
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE CT2MJD(STIME,XMJD)
USE DATAPOOL
IMPLICIT NONE
CHARACTER(LEN=15), INTENT(IN) :: STIME
real(rkind), INTENT(OUT) :: XMJD
integer year, month, day, hour, min, sec
CALL DATE_ConvertString2six(year, month, day, hour, min, sec, STIME)
CALL DATE_ConvertSix2mjd(year, month, day, hour, min, sec, XMJD)
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE MJD2CT(XMJD,STIME)
USE DATAPOOL
IMPLICIT NONE
CHARACTER(LEN=15), INTENT(OUT) :: STIME
real(rkind), INTENT(IN) :: XMJD
integer year, month, day, hour, min, sec
real(rkind) XMJD_1858, eMJD
CALL DATE2JD(1858, 11, 17, 0, 0, 0, XMJD_1858)
eMJD = XMJD + XMJD_1858
CALL JD2DATE(year, month, day, hour, min, sec, eMJD)
CALL DATE_ConvertSix2string(year, month, day, hour, min, sec, STIME)
END SUBROUTINE
#endif
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE CU2SEC(UNITT, DT)
USE DATAPOOL, ONLY : DBG, RKIND
IMPLICIT NONE
CHARACTER(LEN=*), INTENT(IN) :: UNITT
real(rkind), INTENT(INOUT) :: DT
SELECT CASE (UNITT)
CASE ('H', 'h', 'HR', 'hr')
DT = DT * 3600.0
CASE ('M', 'm', 'MIN', 'min')
DT = DT * 60.0
CASE ('S', 's', 'SEC', 'sec')
DT = DT
CASE DEFAULT
WRITE(DBG%FHNDL,*) 'ERROR WRONG UNIT, UNIT = ', UNITT
DT = 0.0
END SELECT
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************
SUBROUTINE MJDYMD( XMJD, IY, IM, ID, IH, IMIN, ISEC, IFLAG )
USE DATAPOOL, ONLY : SEC2DAY, DAY2SEC, RKIND
!
! ... XMJD : MODIFIED JULIAN DATE
! ... IY : YEAR
! ... IM : MONTH
! ... ID : DAY
! ... IH : HOUR
! ... IMIN : MINUTE
! ... ISEC : SECOND
! ... IFLAG : 1 -> YMDHMS TO MJD
! 2 -> MJD TO YMDHMS
! ... DATE MUST BE WITHIN THE YEARS MAR. 1, 1900 TO FEB. 28, 2100
IMPLICIT real(rkind) (A-H,O-Z)
!
PARAMETER ( XJD0 = 2400000.5D0 )
PARAMETER ( HALF = 0.5D0 )
INTEGER IMONTH(12)
DATA IMONTH /31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31/
!
! ... -----< YMDHMS TO MJD >-----
!
IF (IFLAG.EQ.1) THEN
Y = DFLOAT(IY - 1)
IF (IM.GT.2) THEN
M = IM
Y = Y + 1
ELSE
M = IM + 12
ENDIF
XJD = INT(365.25D0*Y) + INT(30.6001D0*(M+1)) - 15 &
& + 1720996.5D0 + ID
XMJD = XJD - XJD0
FSEC = DFLOAT(IH)*3600.D0 + DFLOAT(IMIN)*60.D0 + DFLOAT(ISEC)
XMJD = XMJD + FSEC * SEC2DAY
!
! ... -----< MJD TO YMDHMS >-----
!
ELSE IF (IFLAG.EQ.2) THEN
MJD = XMJD
XJD = DFLOAT(MJD) + XJD0
C = INT(XJD + HALF) + 1537
ND = INT((C - 122.1D0)/365.25D0 )
E = INT(365.25D0*ND)
NF = INT((C - E)/30.6001D0)
IFR = INT(XJD + HALF)
FRC = XJD + HALF - DFLOAT(IFR)
ID = C - E - INT(30.6001D0*NF) + FRC
IM = NF - 1 - 12*INT(NF/14)
IY = ND - 4715 - INT((7+IM)/10)
SEC = (XMJD-DFLOAT(MJD))*DAY2SEC
ISEC = SEC
IF ((SEC-ISEC).GT.0.5D0) ISEC = ISEC + 1
IH = ISEC/3600
IMIN = (ISEC - IH*3600)/60
ISEC = ISEC - IH*3600 - IMIN*60
!
! ... set 24:00 to 00:00
!
IF (MOD(IY,4) == 0) IMONTH(2) = 29
IF (IH == 24) THEN
IH = 0
ID = ID + 1
IF (ID > IMONTH(IM)) THEN
ID = ID - IMONTH(IM)
IM = IM + 1
IF (IM > 12) THEN
IM = IM - 12
IY = IY + 1
END IF
END IF
END IF
ELSE
CALL WWM_ABORT('!!! ERROR IN <MJDYMD>. IFLAG SHOULD BE 1 OR 2.')
ENDIF
END SUBROUTINE
!**********************************************************************
!* *
!**********************************************************************