| 1 | !----------------------------------------------------------------------- |
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| 2 | ! |
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| 3 | !NCEP_MESO:MODEL_LAYER: PHYSICS |
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| 4 | ! |
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| 5 | !---------------------------------------------------------------------- |
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| 6 | #include "nmm_loop_basemacros.h" |
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| 7 | #include "nmm_loop_macros.h" |
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| 8 | !----------------------------------------------------------------------- |
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| 9 | ! |
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| 10 | MODULE MODULE_PRECIP_ADJUST |
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| 11 | ! |
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| 12 | ! This module contains 3 subroutines: |
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| 13 | ! READPCP |
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| 14 | ! CHKSNOW |
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| 15 | ! ADJPPT |
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| 16 | !----------------------------------------------------------------------- |
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| 17 | !*** |
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| 18 | !*** Specify the diagnostic point here: (i,j) and the processor number. |
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| 19 | !*** Remember that in WRF, local and global (i,j) are the same, so don't |
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| 20 | !*** use the "local(i,j)" output from glb2loc.f; use the GLOBAL (I,J) |
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| 21 | !*** and the PE_WRF. |
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| 22 | !*** |
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| 23 | ! |
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| 24 | INTEGER :: ITEST=346,JTEST=256,TESTPE=53 |
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| 25 | !----------------------------------------------------------------------- |
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| 26 | ! |
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| 27 | CONTAINS |
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| 28 | ! |
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| 29 | !----------------------------------------------------------------------- |
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| 30 | SUBROUTINE READPCP(PPTDAT,DDATA,LSPA & |
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| 31 | & ,IDS,IDE,JDS,JDE,KDS,KDE & |
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| 32 | & ,IMS,IME,JMS,JME,KMS,KME & |
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| 33 | & ,ITS,ITE,JTS,JTE,KTS,KTE) |
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| 34 | ! |
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| 35 | ! **************************************************************** |
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| 36 | ! * * |
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| 37 | ! * PRECIPITATION ASSIMILATION INITIALIZATION. * |
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| 38 | ! * READ IN PRECIP ANALYSIS AND DATA MASK AND SET UP ALL * |
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| 39 | ! * APPROPRIATE VARIABLES. * |
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| 40 | ! * MIKE BALDWIN, MARCH 1994 * |
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| 41 | ! * Adapted to 2-D code, Ying Lin, Mar 1996 * |
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| 42 | ! * For WRF/NMM: Y.Lin Mar 2005 * |
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| 43 | ! * * |
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| 44 | ! **************************************************************** |
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| 45 | !----------------------------------------------------------------------- |
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| 46 | ! |
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| 47 | ! READ THE BINARY VERSION OF THE PRECIP ANALYSIS. |
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| 48 | ! |
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| 49 | IMPLICIT NONE |
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| 50 | INTEGER,INTENT(IN) :: IDS,IDE,JDS,JDE,KDS,KDE, & |
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| 51 | & IMS,IME,JMS,JME,KMS,KME, & |
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| 52 | & ITS,ITE,JTS,JTE,KTS,KTE |
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| 53 | REAL,DIMENSION(IDS:IDE,JDS:JDE) :: TEMPG |
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| 54 | REAL,DIMENSION(IMS:IME,JMS:JME) :: TEMPL |
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| 55 | REAL,DIMENSION(IMS:IME,JMS:JME),INTENT(OUT) :: DDATA, LSPA |
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| 56 | REAL,DIMENSION(IMS:IME,JMS:JME,3),INTENT(OUT) :: PPTDAT |
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| 57 | INTEGER :: I, J, IHR |
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| 58 | INTEGER :: MYPE |
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| 59 | CHARACTER*256 :: MESSAGE |
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| 60 | ! |
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| 61 | ! Get the value of MYPE: |
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| 62 | ! |
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| 63 | CALL WRF_GET_MYPROC(MYPE) |
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| 64 | ! |
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| 65 | TEMPG=999. |
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| 66 | ! |
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| 67 | DO IHR=1,3 |
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| 68 | IF(MYPE==0)THEN |
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| 69 | READ(40+IHR) ((TEMPG(I,J),I=IDS,IDE-1),J=JDS,JDE-1) |
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| 70 | WRITE(MESSAGE,*) 'IHR=', IHR, ' FINISHED READING PCP TO TEMPG' |
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| 71 | CALL WRF_MESSAGE(MESSAGE) |
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| 72 | CLOSE(40+IHR) |
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| 73 | ! |
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| 74 | DO J=JDS,JDE-1 |
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| 75 | DO I=IDS,IDE-1 |
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| 76 | ! In the binary version of the precip data, missing data are denoted as '999.' |
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| 77 | ! Convert the valid data from mm to m: |
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| 78 | IF (TEMPG(I,J).LT.900.) TEMPG(I,J)=TEMPG(I,J)*0.001 |
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| 79 | ENDDO |
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| 80 | ENDDO |
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| 81 | ENDIF |
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| 82 | ! |
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| 83 | ! Distribute to local temp array: |
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| 84 | CALL DSTRB(TEMPG,TEMPL,1,1,1,1,1 & |
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| 85 | &, IDS,IDE,JDS,JDE,KDS,KDE & |
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| 86 | &, IMS,IME,JMS,JME,KMS,KME & |
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| 87 | &, ITS,ITE,JTS,JTE,KTS,KTE) |
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| 88 | ! |
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| 89 | ! Place into correct hour slot in PPTDAT: |
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| 90 | DO J=JMS,JME |
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| 91 | DO I=IMS,IME |
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| 92 | PPTDAT(I,J,IHR)=TEMPL(I,J) |
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| 93 | ENDDO |
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| 94 | ENDDO |
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| 95 | ! |
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| 96 | IF(MYPE==TESTPE)THEN |
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| 97 | WRITE(MESSAGE,*) 'ADJPPT-READPCP, IHR',IHR, 'PPTDAT=', & |
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| 98 | & PPTDAT(ITEST,JTEST,IHR) |
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| 99 | CALL WRF_MESSAGE(MESSAGE) |
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| 100 | ENDIF |
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| 101 | |
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| 102 | ENDDO |
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| 103 | ! |
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| 104 | ! Give DDATA (hourly precipitation analysis partitioned into each physics |
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| 105 | ! timestep; partitioning done in ADJPPT) an initial value of 999, because |
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| 106 | ! TURBL/SURFCE is called before ADJPPT. Also initialize LSPA to zero. |
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| 107 | ! |
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| 108 | DDATA=999. |
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| 109 | LSPA=0. |
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| 110 | ! |
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| 111 | RETURN |
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| 112 | END SUBROUTINE READPCP |
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| 113 | ! |
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| 114 | SUBROUTINE CHKSNOW(NTSD,DT,NPHS,SR,PPTDAT & |
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| 115 | & ,IDS,IDE,JDS,JDE,KDS,KDE & |
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| 116 | & ,IMS,IME,JMS,JME,KMS,KME & |
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| 117 | & ,ITS,ITE,JTS,JTE,KTS,KTE) |
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| 118 | ! |
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| 119 | ! AT THE FIRST PHYSICS TIME STEP AFTER THE TOP OF EACH HOUR, CHECK THE SNOW |
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| 120 | ! ARRAY AGAINST THE SR (SNOW/TOTAL PRECIP RATIO). IF SR .GE. 0.9, SET THIS |
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| 121 | ! POINT TO MISSING (SO WE WON'T DO SNOW ADJUSTMENT HERE). |
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| 122 | ! |
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| 123 | !----------------------------------------------------------------------- |
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| 124 | ! |
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| 125 | IMPLICIT NONE |
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| 126 | ! |
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| 127 | !----------------------------------------------------------------------- |
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| 128 | ! |
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| 129 | INTEGER,INTENT(IN) :: NTSD,NPHS |
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| 130 | INTEGER,INTENT(IN) :: IDS,IDE,JDS,JDE,KDS,KDE, & |
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| 131 | & IMS,IME,JMS,JME,KMS,KME, & |
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| 132 | & ITS,ITE,JTS,JTE,KTS,KTE |
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| 133 | REAL,DIMENSION(IMS:IME,JMS:JME),INTENT(IN) :: SR |
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| 134 | REAL,DIMENSION(IMS:IME,JMS:JME,3),INTENT(INOUT) :: PPTDAT |
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| 135 | REAL,INTENT(IN) :: DT |
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| 136 | REAL :: TIMES |
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| 137 | INTEGER :: I, J, IHR |
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| 138 | INTEGER :: MYPE |
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| 139 | CHARACTER*256 :: MESSAGE |
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| 140 | !----------------------------------------------------------------------- |
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| 141 | TIMES=NTSD*DT |
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| 142 | IF (MOD(TIMES,3600.) < NPHS*DT) THEN |
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| 143 | IHR=INT(TIMES)/3600+1 |
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| 144 | IF (IHR > 3) go to 10 |
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| 145 | DO J=MYJS2,MYJE2 |
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| 146 | DO I=MYIS1,MYIE1 |
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| 147 | IF (SR(I,J) >= 0.9) PPTDAT(I,J,IHR) = 999. |
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| 148 | ENDDO |
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| 149 | ENDDO |
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| 150 | ! |
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| 151 | ! Get the value of MYPE: |
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| 152 | ! |
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| 153 | CALL WRF_GET_MYPROC(MYPE) |
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| 154 | ! |
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| 155 | IF (MYPE==TESTPE) THEN |
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| 156 | WRITE(MESSAGE,1010) TIMES,SR(ITEST,JTEST) |
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| 157 | 1010 FORMAT('ADJPPT-CHKSNOW: TIMES, SR=',F6.0,X,F6.4) |
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| 158 | CALL WRF_MESSAGE(MESSAGE) |
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| 159 | ENDIF |
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| 160 | ENDIF |
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| 161 | 10 CONTINUE |
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| 162 | RETURN |
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| 163 | END SUBROUTINE CHKSNOW |
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| 164 | ! |
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| 165 | SUBROUTINE ADJPPT(NTSD,DT,NPHS,PREC,LSPA,PPTDAT,DDATA & |
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| 166 | & ,IDS,IDE,JDS,JDE,KDS,KDE & |
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| 167 | & ,IMS,IME,JMS,JME,KMS,KME & |
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| 168 | & ,ITS,ITE,JTS,JTE,KTS,KTE) |
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| 169 | |
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| 170 | !*********************************************************************** |
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| 171 | !$$$ SUBPROGRAM DOCUMENTATION BLOCK |
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| 172 | ! . . . |
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| 173 | ! SUBPROGRAM: ADJPPT PRECIPITATION/CLOUD ADJUSTMENT |
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| 174 | ! PRGRMMR: Y. LIN ORG: W/NP22 DATE: 2005/03/30 |
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| 175 | ! |
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| 176 | ! ABSTRACT: |
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| 177 | ! ADJPPT MAKES ADJUSTMENT TO MODEL'S TEMPERATURE, MOISTURE, HYDROMETEOR |
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| 178 | ! FIELDS TO BE MORE CONSISTENT WITH THE OBSERVED PRECIPITATION AND CLOUD |
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| 179 | ! TOP PRESSURE |
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| 180 | ! |
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| 181 | ! FOR NOW, AS A FIRST STEP, JUST PARTITION THE INPUT HOURLY PRECIPITATION |
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| 182 | ! OBSERVATION INTO TIME STEPS, AND FEED IT INTO THE SOIL. |
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| 183 | ! PROGRAM HISTORY LOG: |
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| 184 | ! |
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| 185 | ! 2005/03/30 LIN - BAREBONES PRECIPITATION PARTITION/FEEDING TO GROUND |
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| 186 | ! ATTRIBUTES: |
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| 187 | ! LANGUAGE: FORTRAN 90 |
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| 188 | ! MACHINE : IBM |
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| 189 | !$$$ |
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| 190 | !----------------------------------------------------------------------- |
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| 191 | ! |
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| 192 | IMPLICIT NONE |
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| 193 | ! |
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| 194 | !----------------------------------------------------------------------- |
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| 195 | INTEGER,INTENT(IN) :: NPHS, NTSD |
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| 196 | INTEGER,INTENT(IN) :: IDS,IDE,JDS,JDE,KDS,KDE, & |
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| 197 | & IMS,IME,JMS,JME,KMS,KME, & |
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| 198 | & ITS,ITE,JTS,JTE,KTS,KTE |
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| 199 | REAL,INTENT(IN) :: DT |
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| 200 | REAL,DIMENSION(IMS:IME,JMS:JME),INTENT(IN) :: PREC |
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| 201 | REAL,DIMENSION(IMS:IME,JMS:JME),INTENT(OUT) :: DDATA, LSPA |
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| 202 | REAL,DIMENSION(IMS:IME,JMS:JME,3),INTENT(OUT) :: PPTDAT |
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| 203 | !----------------------------------------------------------------------- |
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| 204 | !*** |
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| 205 | !*** LOCAL VARIABLES |
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| 206 | !*** |
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| 207 | !----------------------------------------------------------------------- |
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| 208 | REAL :: DTPHS, FRACT, FRACT1, FRACT2, TIMES, TPHS1, TPHS2 |
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| 209 | INTEGER :: I, J, IHR, IHR1, IHR2, NTSP |
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| 210 | INTEGER :: MYPE |
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| 211 | CHARACTER*256 :: MESSAGE |
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| 212 | ! |
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| 213 | ! Get the value of MYPE: |
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| 214 | ! |
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| 215 | CALL WRF_GET_MYPROC(MYPE) |
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| 216 | ! |
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| 217 | TIMES=NTSD*DT |
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| 218 | IHR=INT(TIMES)/3600+1 |
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| 219 | ! Size of physics time step: |
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| 220 | DTPHS=NPHS*DT |
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| 221 | ! |
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| 222 | ! Compute the beginning and ending time of the current physics time step, |
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| 223 | ! TPHS1 and TPHS2: |
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| 224 | ! |
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| 225 | NTSP=NTSD/NPHS+1 |
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| 226 | TPHS1=(NTSP-1)*DTPHS |
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| 227 | TPHS2=NTSP*DTPHS |
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| 228 | ! |
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| 229 | IHR1=INT(TPHS1)/3600+1 |
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| 230 | IHR2=INT(TPHS2)/3600+1 |
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| 231 | ! |
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| 232 | ! Fraction of an hour that falls into IHR1 and IHR2. Note that IHR1 and IHR2 |
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| 233 | ! might be identical. |
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| 234 | IF (IHR1 > 3) THEN |
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| 235 | GO TO 200 |
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| 236 | ELSEIF (IHR2 > 3) THEN |
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| 237 | IHR2=3 |
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| 238 | FRACT1=(3600.- MOD(INT(TPHS1),3600))/3600. |
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| 239 | FRACT2=0. |
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| 240 | ELSEIF (IHR1 .EQ. IHR2) THEN |
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| 241 | FRACT1=0.5*DTPHS/3600. |
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| 242 | FRACT2=FRACT1 |
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| 243 | ELSE |
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| 244 | FRACT1=(3600.- MOD(INT(TPHS1),3600))/3600. |
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| 245 | FRACT2=FLOAT(MOD(INT(TPHS2),3600))/3600. |
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| 246 | ENDIF |
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| 247 | ! |
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| 248 | FRACT=FRACT1 + FRACT2 |
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| 249 | ! |
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| 250 | IF (MYPE==TESTPE) THEN |
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| 251 | WRITE(MESSAGE,1010) NTSD,NTSP,TIMES,IHR1,IHR2,TPHS1,TPHS2, & |
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| 252 | & FRACT1,FRACT2 |
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| 253 | 1010 FORMAT('ADJPPT: NTSD,NTSP,TIMES=',I4,X,I4,1X,F6.0,' IHR1,IHR2=',& |
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| 254 | & I1,X,I1,' TPHS1,TPHS2=',F6.0,X,F6.0,' FRACT1,FRACT2=', & |
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| 255 | & 2(X,F6.4)) |
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| 256 | CALL WRF_MESSAGE(MESSAGE) |
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| 257 | ENDIF |
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| 258 | ! |
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| 259 | !----------------------------------------------------------------------- |
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| 260 | ! FRACT1/2 IS THE FRACTION OF IHR1/2'S PRECIP THAT WE WANT FOR |
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| 261 | ! THIS ADJUSTMENT (assuming that the physics time step spans over |
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| 262 | ! IHR1 and IHR2. If not, then IHR1=IHR2). |
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| 263 | !----------------------------------------------------------------------- |
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| 264 | ! SET UP OBSERVED PRECIP FOR THIS TIMESTEP IN DDATA |
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| 265 | !----------------------------------------------------------------------- |
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| 266 | DO J=MYJS2,MYJE2 |
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| 267 | DO I=MYIS1,MYIE1 |
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| 268 | ! Note sometimes IHR1=IHR2. |
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| 269 | IF (PPTDAT(I,J,IHR1).GT.900..OR.PPTDAT(I,J,IHR2).GT.900.) THEN |
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| 270 | DDATA(I,J) = 999. |
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| 271 | LSPA(I,J) = LSPA(I,J) + PREC(I,J) |
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| 272 | GO TO 100 |
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| 273 | ELSE |
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| 274 | IF (IHR2 .LE. 3) then |
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| 275 | DDATA(I,J) = PPTDAT(I,J,IHR1)*FRACT1 & |
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| 276 | & + PPTDAT(I,J,IHR2)*FRACT2 |
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| 277 | ELSE |
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| 278 | DDATA(I,J) = PPTDAT(I,J,IHR1)*FRACT1 |
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| 279 | ENDIF |
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| 280 | ! |
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| 281 | LSPA(I,J) = LSPA(I,J) + DDATA(I,J) |
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| 282 | ENDIF |
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| 283 | IF (I.EQ.ITEST .AND. J.EQ.JTEST .AND. MYPE.EQ.TESTPE) THEN |
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| 284 | WRITE(MESSAGE,1020) DDATA(I,J), PREC(I,J), LSPA(I,J) |
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| 285 | 1020 FORMAT('ADJPPT: DDATA=',E12.6, ' PREC=',E12.6,' LSPA=',E12.6) |
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| 286 | CALL WRF_MESSAGE(MESSAGE) |
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| 287 | ENDIF |
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| 288 | ! |
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| 289 | 100 CONTINUE |
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| 290 | ENDDO |
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| 291 | ENDDO |
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| 292 | ! |
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| 293 | 200 CONTINUE |
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| 294 | |
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| 295 | RETURN |
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| 296 | END SUBROUTINE ADJPPT |
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| 297 | END MODULE module_PRECIP_ADJUST |
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