Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
!SFX_LIC Copyright 1994-2014 CNRS, Meteo-France and Universite Paul Sabatier
!SFX_LIC This is part of the SURFEX software governed by the CeCILL-C licence
!SFX_LIC version 1. See LICENSE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt
!SFX_LIC for details. version 1.
! #########
SUBROUTINE SWITCH_TIME (PLON, PSUNTIME, PDELTA_LEGAL_TIME, &
KYEAR, KMONTH, KDAY, &
CDTIME_REF, HPROGRAM, PSIMTIME, KSIZE, PTIME)
! ######################################################################
!!
!!*** *SWITCH_TIME extracted from CH_EMISSION_SNAP_n* -
!!
!! PURPOSE
!! -------
!! Change the reference time
!!
!!** METHOD
!! ------
!!
!! AUTHOR
!! ------
!! S. Queguiner
!!
!! MODIFICATIONS
!! -------------
!! Original 10/2011
!!
!! A. Alias 07/2016 gmkpack problem : name of the internal subroutine modified
!! because exist already (view SURFEX/day_of_week.F90 )
!! M. Goret 03/2017 extract this part of the routine from CH_EMISSION_SNAP_n
!! in order to reuse it in TEB.
!!
!! EXTERNAL
!! --------
!!
!!
!! IMPLICIT ARGUMENTS
!! ------------------
!
!
USE MODD_CSTS, ONLY: XDAY
!
USE MODI_ADD_FORECAST_TO_DATE_SURF
USE MODI_SUBSTRACT_TO_DATE_SURF
USE MODI_ABOR1_SFX
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
!------------------------------------------------------------------------------
!
!* 0. DECLARATIONS
! -----------------
!
USE YOMHOOK ,ONLY : LHOOK, DR_HOOK
USE PARKIND1 ,ONLY : JPRB
!
!
IMPLICIT NONE
!
!* 0.1 declaration of arguments
!
!
REAL, DIMENSION(KSIZE), INTENT(IN) :: PLON ! Longitude (deg, from Greenwich)
! (must be between -180deg and 180deg)
REAL, DIMENSION(KSIZE), INTENT(IN) :: PSUNTIME ! Solar time (s since midnight)
REAL, DIMENSION(KSIZE), INTENT(IN) :: PDELTA_LEGAL_TIME ! Difference (in hours)) between
! ! Legal time and UTC time
INTEGER, DIMENSION(KSIZE), INTENT(INOUT) :: KYEAR,KMONTH,KDAY ! UTC year, month, day (in)
! ref time year, month, day (out)
CHARACTER(LEN=5), INTENT(IN) :: CDTIME_REF ! Reference time
! ! 'UTC ' : UTC time
! ! 'SOLAR' : SOLAR time
! ! 'LEGAL' : LEGAL time
CHARACTER(LEN=6), INTENT(IN) :: HPROGRAM ! Type of program
REAL, INTENT(IN) :: PSIMTIME ! time of simulation in sec UTC
! (counting from midnight of
! the current day)
INTEGER, INTENT(IN) :: KSIZE ! number of points
REAL, DIMENSION(KSIZE), INTENT(OUT) :: PTIME ! ref time since midnight (s)
!
!
!* 0.2 declaration of local variables
!
REAL, DIMENSION(KSIZE) :: ZLON ! Longitude centered in Greenwich meridian
INTEGER :: JI ! Loop counter on points
INTEGER :: ILUOUT ! logical unit of output file
!
REAL(KIND=JPRB) :: ZHOOK_HANDLE
!
!------------------------------------------------------------------------------
!
!* EXECUTABLE STATEMENTS
! ---------------------
!
IF (LHOOK) CALL DR_HOOK('SWITCH_TIME',0,ZHOOK_HANDLE)
CALL GET_LUOUT(HPROGRAM,ILUOUT)
!
!
SELECT CASE (CDTIME_REF)
CASE ('UTC ')
PTIME(:)=PSIMTIME
CASE ('SOLAR')
ZLON(:)=PLON(:)
WHERE(PLON(:)> 180.) ZLON(:)=PLON(:)-360.
WHERE(PLON(:)<=-180.) ZLON(:)=PLON(:)+360.
!* retrieves solar date and time
PTIME(:)=PSIMTIME + ZLON(:)*240. ! first guess is approximated solar time.
! The suntime should be close to this.
DO JI=1,KSIZE
IF (PTIME(JI)>PSUNTIME(JI)+XDAY/2.) THEN
PTIME(JI) = PSUNTIME(JI) + XDAY
ELSEIF (PTIME(JI)<PSUNTIME(JI)-XDAY/2.) THEN
PTIME(JI) = PSUNTIME(JI) - XDAY
ELSE
PTIME(JI) = PSUNTIME(JI)
END IF
CALL ADD_FORECAST_TO_DATE_SURF(KYEAR(JI),KMONTH(JI),KDAY(JI),PTIME(JI))
CALL SUBSTRACT_TO_DATE_SURF (KYEAR(JI),KMONTH(JI),KDAY(JI),PTIME(JI))
ENDDO
CASE ('LEGAL')
PTIME(:)=PSIMTIME + PDELTA_LEGAL_TIME(:) * 3600.
DO JI=1,KSIZE
CALL ADD_FORECAST_TO_DATE_SURF(KYEAR(JI),KMONTH(JI),KDAY(JI),PTIME(JI))
CALL SUBSTRACT_TO_DATE_SURF (KYEAR(JI),KMONTH(JI),KDAY(JI),PTIME(JI))
ENDDO
CASE DEFAULT
WRITE(ILUOUT,*) CDTIME_REF, 'is an unexpected value for reference time'
WRITE(ILUOUT,*) "Please choose one among UTC, LEGAL, SOLAR"
CALL FLUSH(ILUOUT)
CALL ABOR1_SFX ("SWITCH_TIME: Unknown ref time")
END SELECT
!
IF (LHOOK) CALL DR_HOOK('SWITCH_TIME',1,ZHOOK_HANDLE)
!
END SUBROUTINE SWITCH_TIME