!----------------------------------------------------------------------- ! !NCEP_MESO:MODEL_LAYER: PHYSICS ! !---------------------------------------------------------------------- #include "nmm_loop_basemacros.h" #include "nmm_loop_macros.h" !----------------------------------------------------------------------- ! MODULE MODULE_PRECIP_ADJUST ! ! This module contains 3 subroutines: ! READPCP ! CHKSNOW ! ADJPPT !----------------------------------------------------------------------- !*** !*** Specify the diagnostic point here: (i,j) and the processor number. !*** Remember that in WRF, local and global (i,j) are the same, so don't !*** use the "local(i,j)" output from glb2loc.f; use the GLOBAL (I,J) !*** and the PE_WRF. !*** ! INTEGER :: ITEST=346,JTEST=256,TESTPE=53 !----------------------------------------------------------------------- ! CONTAINS ! !----------------------------------------------------------------------- SUBROUTINE READPCP(PPTDAT,DDATA,LSPA & & ,IDS,IDE,JDS,JDE,KDS,KDE & & ,IMS,IME,JMS,JME,KMS,KME & & ,ITS,ITE,JTS,JTE,KTS,KTE) ! ! **************************************************************** ! * * ! * PRECIPITATION ASSIMILATION INITIALIZATION. * ! * READ IN PRECIP ANALYSIS AND DATA MASK AND SET UP ALL * ! * APPROPRIATE VARIABLES. * ! * MIKE BALDWIN, MARCH 1994 * ! * Adapted to 2-D code, Ying Lin, Mar 1996 * ! * For WRF/NMM: Y.Lin Mar 2005 * ! * * ! **************************************************************** !----------------------------------------------------------------------- ! ! READ THE BINARY VERSION OF THE PRECIP ANALYSIS. ! IMPLICIT NONE INTEGER,INTENT(IN) :: IDS,IDE,JDS,JDE,KDS,KDE, & & IMS,IME,JMS,JME,KMS,KME, & & ITS,ITE,JTS,JTE,KTS,KTE REAL,DIMENSION(IDS:IDE,JDS:JDE) :: TEMPG REAL,DIMENSION(IMS:IME,JMS:JME) :: TEMPL REAL,DIMENSION(IMS:IME,JMS:JME),INTENT(OUT) :: DDATA, LSPA REAL,DIMENSION(IMS:IME,JMS:JME,3),INTENT(OUT) :: PPTDAT INTEGER :: I, J, IHR INTEGER :: MYPE CHARACTER*256 :: MESSAGE ! ! Get the value of MYPE: ! CALL WRF_GET_MYPROC(MYPE) ! TEMPG=999. ! DO IHR=1,3 IF(MYPE==0)THEN READ(40+IHR) ((TEMPG(I,J),I=IDS,IDE-1),J=JDS,JDE-1) WRITE(MESSAGE,*) 'IHR=', IHR, ' FINISHED READING PCP TO TEMPG' CALL WRF_MESSAGE(MESSAGE) CLOSE(40+IHR) ! DO J=JDS,JDE-1 DO I=IDS,IDE-1 ! In the binary version of the precip data, missing data are denoted as '999.' ! Convert the valid data from mm to m: IF (TEMPG(I,J).LT.900.) TEMPG(I,J)=TEMPG(I,J)*0.001 ENDDO ENDDO ENDIF ! ! Distribute to local temp array: CALL DSTRB(TEMPG,TEMPL,1,1,1,1,1 & &, IDS,IDE,JDS,JDE,KDS,KDE & &, IMS,IME,JMS,JME,KMS,KME & &, ITS,ITE,JTS,JTE,KTS,KTE) ! ! Place into correct hour slot in PPTDAT: DO J=JMS,JME DO I=IMS,IME PPTDAT(I,J,IHR)=TEMPL(I,J) ENDDO ENDDO ! IF(MYPE==TESTPE)THEN WRITE(MESSAGE,*) 'ADJPPT-READPCP, IHR',IHR, 'PPTDAT=', & & PPTDAT(ITEST,JTEST,IHR) CALL WRF_MESSAGE(MESSAGE) ENDIF ENDDO ! ! Give DDATA (hourly precipitation analysis partitioned into each physics ! timestep; partitioning done in ADJPPT) an initial value of 999, because ! TURBL/SURFCE is called before ADJPPT. Also initialize LSPA to zero. ! DDATA=999. LSPA=0. ! RETURN END SUBROUTINE READPCP ! SUBROUTINE CHKSNOW(NTSD,DT,NPHS,SR,PPTDAT & & ,IDS,IDE,JDS,JDE,KDS,KDE & & ,IMS,IME,JMS,JME,KMS,KME & & ,ITS,ITE,JTS,JTE,KTS,KTE) ! ! AT THE FIRST PHYSICS TIME STEP AFTER THE TOP OF EACH HOUR, CHECK THE SNOW ! ARRAY AGAINST THE SR (SNOW/TOTAL PRECIP RATIO). IF SR .GE. 0.9, SET THIS ! POINT TO MISSING (SO WE WON'T DO SNOW ADJUSTMENT HERE). ! !----------------------------------------------------------------------- ! IMPLICIT NONE ! !----------------------------------------------------------------------- ! INTEGER,INTENT(IN) :: NTSD,NPHS INTEGER,INTENT(IN) :: IDS,IDE,JDS,JDE,KDS,KDE, & & IMS,IME,JMS,JME,KMS,KME, & & ITS,ITE,JTS,JTE,KTS,KTE REAL,DIMENSION(IMS:IME,JMS:JME),INTENT(IN) :: SR REAL,DIMENSION(IMS:IME,JMS:JME,3),INTENT(INOUT) :: PPTDAT REAL,INTENT(IN) :: DT REAL :: TIMES INTEGER :: I, J, IHR INTEGER :: MYPE CHARACTER*256 :: MESSAGE !----------------------------------------------------------------------- TIMES=NTSD*DT IF (MOD(TIMES,3600.) < NPHS*DT) THEN IHR=INT(TIMES)/3600+1 IF (IHR > 3) go to 10 DO J=MYJS2,MYJE2 DO I=MYIS1,MYIE1 IF (SR(I,J) >= 0.9) PPTDAT(I,J,IHR) = 999. ENDDO ENDDO ! ! Get the value of MYPE: ! CALL WRF_GET_MYPROC(MYPE) ! IF (MYPE==TESTPE) THEN WRITE(MESSAGE,1010) TIMES,SR(ITEST,JTEST) 1010 FORMAT('ADJPPT-CHKSNOW: TIMES, SR=',F6.0,X,F6.4) CALL WRF_MESSAGE(MESSAGE) ENDIF ENDIF 10 CONTINUE RETURN END SUBROUTINE CHKSNOW ! SUBROUTINE ADJPPT(NTSD,DT,NPHS,PREC,LSPA,PPTDAT,DDATA & & ,IDS,IDE,JDS,JDE,KDS,KDE & & ,IMS,IME,JMS,JME,KMS,KME & & ,ITS,ITE,JTS,JTE,KTS,KTE) !*********************************************************************** !$$$ SUBPROGRAM DOCUMENTATION BLOCK ! . . . ! SUBPROGRAM: ADJPPT PRECIPITATION/CLOUD ADJUSTMENT ! PRGRMMR: Y. LIN ORG: W/NP22 DATE: 2005/03/30 ! ! ABSTRACT: ! ADJPPT MAKES ADJUSTMENT TO MODEL'S TEMPERATURE, MOISTURE, HYDROMETEOR ! FIELDS TO BE MORE CONSISTENT WITH THE OBSERVED PRECIPITATION AND CLOUD ! TOP PRESSURE ! ! FOR NOW, AS A FIRST STEP, JUST PARTITION THE INPUT HOURLY PRECIPITATION ! OBSERVATION INTO TIME STEPS, AND FEED IT INTO THE SOIL. ! PROGRAM HISTORY LOG: ! ! 2005/03/30 LIN - BAREBONES PRECIPITATION PARTITION/FEEDING TO GROUND ! ATTRIBUTES: ! LANGUAGE: FORTRAN 90 ! MACHINE : IBM !$$$ !----------------------------------------------------------------------- ! IMPLICIT NONE ! !----------------------------------------------------------------------- INTEGER,INTENT(IN) :: NPHS, NTSD INTEGER,INTENT(IN) :: IDS,IDE,JDS,JDE,KDS,KDE, & & IMS,IME,JMS,JME,KMS,KME, & & ITS,ITE,JTS,JTE,KTS,KTE REAL,INTENT(IN) :: DT REAL,DIMENSION(IMS:IME,JMS:JME),INTENT(IN) :: PREC REAL,DIMENSION(IMS:IME,JMS:JME),INTENT(OUT) :: DDATA, LSPA REAL,DIMENSION(IMS:IME,JMS:JME,3),INTENT(OUT) :: PPTDAT !----------------------------------------------------------------------- !*** !*** LOCAL VARIABLES !*** !----------------------------------------------------------------------- REAL :: DTPHS, FRACT, FRACT1, FRACT2, TIMES, TPHS1, TPHS2 INTEGER :: I, J, IHR, IHR1, IHR2, NTSP INTEGER :: MYPE CHARACTER*256 :: MESSAGE ! ! Get the value of MYPE: ! CALL WRF_GET_MYPROC(MYPE) ! TIMES=NTSD*DT IHR=INT(TIMES)/3600+1 ! Size of physics time step: DTPHS=NPHS*DT ! ! Compute the beginning and ending time of the current physics time step, ! TPHS1 and TPHS2: ! NTSP=NTSD/NPHS+1 TPHS1=(NTSP-1)*DTPHS TPHS2=NTSP*DTPHS ! IHR1=INT(TPHS1)/3600+1 IHR2=INT(TPHS2)/3600+1 ! ! Fraction of an hour that falls into IHR1 and IHR2. Note that IHR1 and IHR2 ! might be identical. IF (IHR1 > 3) THEN GO TO 200 ELSEIF (IHR2 > 3) THEN IHR2=3 FRACT1=(3600.- MOD(INT(TPHS1),3600))/3600. FRACT2=0. ELSEIF (IHR1 .EQ. IHR2) THEN FRACT1=0.5*DTPHS/3600. FRACT2=FRACT1 ELSE FRACT1=(3600.- MOD(INT(TPHS1),3600))/3600. FRACT2=FLOAT(MOD(INT(TPHS2),3600))/3600. ENDIF ! FRACT=FRACT1 + FRACT2 ! IF (MYPE==TESTPE) THEN WRITE(MESSAGE,1010) NTSD,NTSP,TIMES,IHR1,IHR2,TPHS1,TPHS2, & & FRACT1,FRACT2 1010 FORMAT('ADJPPT: NTSD,NTSP,TIMES=',I4,X,I4,1X,F6.0,' IHR1,IHR2=',& & I1,X,I1,' TPHS1,TPHS2=',F6.0,X,F6.0,' FRACT1,FRACT2=', & & 2(X,F6.4)) CALL WRF_MESSAGE(MESSAGE) ENDIF ! !----------------------------------------------------------------------- ! FRACT1/2 IS THE FRACTION OF IHR1/2'S PRECIP THAT WE WANT FOR ! THIS ADJUSTMENT (assuming that the physics time step spans over ! IHR1 and IHR2. If not, then IHR1=IHR2). !----------------------------------------------------------------------- ! SET UP OBSERVED PRECIP FOR THIS TIMESTEP IN DDATA !----------------------------------------------------------------------- DO J=MYJS2,MYJE2 DO I=MYIS1,MYIE1 ! Note sometimes IHR1=IHR2. IF (PPTDAT(I,J,IHR1).GT.900..OR.PPTDAT(I,J,IHR2).GT.900.) THEN DDATA(I,J) = 999. LSPA(I,J) = LSPA(I,J) + PREC(I,J) GO TO 100 ELSE IF (IHR2 .LE. 3) then DDATA(I,J) = PPTDAT(I,J,IHR1)*FRACT1 & & + PPTDAT(I,J,IHR2)*FRACT2 ELSE DDATA(I,J) = PPTDAT(I,J,IHR1)*FRACT1 ENDIF ! LSPA(I,J) = LSPA(I,J) + DDATA(I,J) ENDIF IF (I.EQ.ITEST .AND. J.EQ.JTEST .AND. MYPE.EQ.TESTPE) THEN WRITE(MESSAGE,1020) DDATA(I,J), PREC(I,J), LSPA(I,J) 1020 FORMAT('ADJPPT: DDATA=',E12.6, ' PREC=',E12.6,' LSPA=',E12.6) CALL WRF_MESSAGE(MESSAGE) ENDIF ! 100 CONTINUE ENDDO ENDDO ! 200 CONTINUE RETURN END SUBROUTINE ADJPPT END MODULE module_PRECIP_ADJUST