c Copyright (C) Stichting Deltares, 2005-2017.
c
c This file is part of iMOD.
c
c This program is free software: you can redistribute it and/or modify
c it under the terms of the GNU General Public License as published by
c the Free Software Foundation, either version 3 of the License, or
c (at your option) any later version.
c
c This program is distributed in the hope that it will be useful,
c but WITHOUT ANY WARRANTY; without even the implied warranty of
c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
c GNU General Public License for more details.
c
c You should have received a copy of the GNU General Public License
c along with this program. If not, see .
c
c Contact: imod.support@deltares.nl
c Stichting Deltares
c P.O. Box 177
c 2600 MH Delft, The Netherlands.
c
c iMod is partly based on the USGS MODFLOW2005 source code;
c for iMOD the USGS MODFLOW2005 source code has been expanded
c and extensively modified by Stichting Deltares.
c The original USGS MODFLOW2005 source code can be downloaded from the USGS
c website http://www.usgs.gov/. The original MODFLOW2005 code incorporated
c in this file is covered by the USGS Software User Rights Notice;
c you should have received a copy of this notice along with this program.
c If not, see .
SUBROUTINE VDF2GHB7FM(IGRID)
C ******************************************************************
C ADD GHB TERMS TO RHS AND HCOF
C--SEAWAT: USE VARIABLE-DENSITY FORM OF DARCY'S LAW
C ******************************************************************
C
C SPECIFICATIONS:
C ------------------------------------------------------------------
USE GLOBAL, ONLY:IBOUND,RHS,HCOF,HNEW
USE GWFGHBMODULE, ONLY:NBOUND,BNDS,GHBAUX
USE VDFMODULE, ONLY: DENSEREF,PS,ELEV
C--SEAWAT: MAKE HB, AND HHB DOUBLE PRECISION SO FEHEAD CAN BE USED
DOUBLE PRECISION HB
! COMMON /GHBCOM/GHBAUX(5)
! CHARACTER*16 GHBAUX
C ------------------------------------------------------------------
CALL SGWF2GHB7PNT(IGRID)
C
C0------IF NBOUND<=0 THEN THERE ARE NO GENERAL HEAD BOUNDS. RETURN.
IF(NBOUND.LE.0) RETURN
C
C1--SEAWAT: FIND GHBELEV AND GHBDENS IF EXIST AS AUX VARIABLES
LOCGHBDENS=0
DO I=1,5
IF(GHBAUX(I).EQ.'GHBDEN') LOCGHBDENS=I+5
ENDDO
C
C2------PROCESS EACH ENTRY IN THE GENERAL HEAD BOUND LIST (BNDS).
DO 100 L=1,NBOUND
C
C3------GET COLUMN, ROW AND LAYER OF CELL CONTAINING BOUNDARY.
IL=BNDS(1,L)
IR=BNDS(2,L)
IC=BNDS(3,L)
C
C4------IF THE CELL IS EXTERNAL THEN SKIP IT.
IF(IBOUND(IC,IR,IL).LE.0) GO TO 100
C
C5------SINCE THE CELL IS INTERNAL GET THE BOUNDARY DATA.
HB=BNDS(4,L)
C=BNDS(5,L)
C--SEAWAT: SET GHBELEV
GHBELEV=ELEV(IC,IR,IL)
C--SEAWAT: SET GHBDENS
GHBDENS=PS(IC,IR,IL)
IF(LOCGHBDENS.GT.0) GHBDENS=BNDS(LOCGHBDENS,L)
C--SEAWAT: CONVERT HB TO FRESHWATER EQUIVALENT
HB=FEHEAD(HB,GHBDENS,GHBELEV)
C--SEAWAT: SET AVERAGE DENSITY, AND FIND DIRECTION OF FLOW
RHOAVG=(GHBDENS+PS(IC,IR,IL))/2
DIRECT=HB-HNEW(IC,IR,IL)+
& (RHOAVG-DENSEREF)/DENSEREF*(GHBELEV-ELEV(IC,IR,IL))
C--SEAWAT: IF DIRECT IS POSITIVE, FLOW IS FROM GHB AND INTO MODEL CELL
IF(DIRECT.LT.0.) GHBDENS=PS(IC,IR,IL)
C
C6------ADD TERMS TO RHS AND HCOF.
HCOF(IC,IR,IL)=HCOF(IC,IR,IL)-C*GHBDENS
C--SEAWAT: USE VD FORM
RHS(IC,IR,IL)=RHS(IC,IR,IL)-C*GHBDENS*
& (HB+(RHOAVG-DENSEREF)/DENSEREF*
& (GHBELEV-ELEV(IC,IR,IL)))
C RHS(IC,IR,IL)=RHS(IC,IR,IL)-C*HB
100 CONTINUE
C
C7------RETURN.
RETURN
END
SUBROUTINE VDF2GHB7BD(KSTP,KPER,IGRID)
C ******************************************************************
C CALCULATE VOLUMETRIC BUDGET FOR GHB
C--SEAWAT: USE VARIABLE-DENSITY FORM OF DARCY'S LAW
C ******************************************************************
C
C SPECIFICATIONS:
C ------------------------------------------------------------------
USE GLOBAL, ONLY:IOUT,NCOL,NROW,NLAY,IBOUND,HNEW,BUFF
USE GWFBASMODULE,ONLY:MSUM,ICBCFL,IAUXSV,DELT,PERTIM,TOTIM,
1 VBVL,VBNM
USE GWFGHBMODULE,ONLY:NBOUND,IGHBCB,BNDS,NGHBVL,GHBAUX
USE VDFMODULE, ONLY:DENSEREF,PS,ELEV
C
C--SEAWAT: MAKE HB, AND DOUBLE PRECISION SO FEHEAD CAN BE USED
DOUBLE PRECISION CCGHB,CHB,RATIN,RATOUT,RRATE,HB
CHARACTER*16 TEXT
DATA TEXT /' HEAD DEP BOUNDS'/
C ------------------------------------------------------------------
CALL SGWF2GHB7PNT(IGRID)
C
C1------INITIALIZE CELL-BY-CELL FLOW TERM FLAG (IBD) AND
C1------ACCUMULATORS (RATIN AND RATOUT).
ZERO=0.
RATOUT=ZERO
RATIN=ZERO
IBD=0
IF(IGHBCB.LT.0 .AND. ICBCFL.NE.0) IBD=-1
IF(IGHBCB.GT.0) IBD=ICBCFL
IBDLBL=0
C
C2------IF CELL-BY-CELL FLOWS WILL BE SAVED AS A LIST, WRITE HEADER.
IF(IBD.EQ.2) THEN
NAUX=NGHBVL-6
IF(IAUXSV.EQ.0) NAUX=0
CALL UBDSV4(KSTP,KPER,TEXT,NAUX,GHBAUX,IGHBCB,NCOL,NROW,NLAY,
1 NBOUND,IOUT,DELT,PERTIM,TOTIM,IBOUND)
END IF
C
C3------CLEAR THE BUFFER.
DO 50 IL=1,NLAY
DO 50 IR=1,NROW
DO 50 IC=1,NCOL
BUFF(IC,IR,IL)=ZERO
50 CONTINUE
C
C4------IF NO BOUNDARIES, SKIP FLOW CALCULATIONS.
IF(NBOUND.EQ.0) GO TO 200
C--SEAWAT: FIND GHBELEV AND GHBDENS IF EXIST AS AUX VARIABLES
LOCGHBDENS=0
DO I=1,5
IF(GHBAUX(I).EQ.'GHBDEN') LOCGHBDENS=I+5
ENDDO
C
C
C5------LOOP THROUGH EACH BOUNDARY CALCULATING FLOW.
DO 100 L=1,NBOUND
C
C5A-----GET LAYER, ROW AND COLUMN OF EACH GENERAL HEAD BOUNDARY.
IL=BNDS(1,L)
IR=BNDS(2,L)
IC=BNDS(3,L)
RATE=ZERO
C
C5B-----IF CELL IS NO-FLOW OR CONSTANT-HEAD, THEN IGNORE IT.
IF(IBOUND(IC,IR,IL).LE.0) GO TO 99
C
C5C-----GET PARAMETERS FROM BOUNDARY LIST.
HB=BNDS(4,L)
HHNEW=HNEW(IC,IR,IL)
C=BNDS(5,L)
CCGHB=C
GHBELEV=ELEV(IC,IR,IL)
GHBDENS=PS(IC,IR,IL)
IF(LOCGHBDENS.GT.0) GHBDENS=BNDS(LOCGHBDENS,L)
C--SEAWAT: CONVERT HB TO FRESHWATER EQUIVALENT
HB=FEHEAD(HB,GHBDENS,GHBELEV)
RHOAVG=(PS(IC,IR,IL)+GHBDENS)/2
DIRECT=HB-HHNEW+(RHOAVG-DENSEREF)/DENSEREF*
&(GHBELEV-ELEV(IC,IR,IL))
C--SEAWAT: IF DIRECT IS POSITIVE, FLOW IS FROM GHB AND INTO MODEL CELL
IF(DIRECT.LT.0.) GHBDENS=PS(IC,IR,IL)
RATE=C*GHBDENS*(HB-HHNEW+(RHOAVG-DENSEREF)/DENSEREF*
&(GHBELEV-ELEV(IC,IR,IL)))
RRATE=RATE
C5E-----PRINT THE INDIVIDUAL RATES IF REQUESTED(IGHBCB<0).
IF(IBD.LT.0) THEN
IF(IBDLBL.EQ.0) WRITE(IOUT,61) TEXT,KPER,KSTP
61 FORMAT(1X,/1X,A,' PERIOD ',I4,' STEP ',I3)
C--SEAWAT: WRITE VOLUMETRIC RATE
WRITE(IOUT,62) L,IL,IR,IC,RATE/GHBDENS
62 FORMAT(1X,'BOUNDARY',I4,' LAYER',I3,' ROW',I5,
1 ' COL',I5,' RATE',1PG15.6)
IBDLBL=1
END IF
C
C5F-----ADD RATE TO BUFFER.
C--SEAWAT: CONVERT BACK TO VOLUMETRIC FLUX
C--SEAWAT: RRATE REMAINS MASS FLUX
RATE=RATE/GHBDENS
BUFF(IC,IR,IL)=BUFF(IC,IR,IL)+RATE
C
C5G-----SEE IF FLOW IS INTO AQUIFER OR OUT OF AQUIFER.
IF(RATE.LT.ZERO) THEN
C
C5H------FLOW IS OUT OF AQUIFER SUBTRACT RATE FROM RATOUT.
RATOUT=RATOUT-RRATE
ELSE
C
C5I-----FLOW IS INTO AQIFER; ADD RATE TO RATIN.
RATIN=RATIN+RRATE
END IF
C
C5J-----IF SAVING CELL-BY-CELL FLOWS IN LIST, WRITE FLOW. ALSO
C5J-----FLOW TO BNDS.
99 IF(IBD.EQ.2) CALL UBDSVB(IGHBCB,NCOL,NROW,IC,IR,IL,RATE,
1 BNDS(:,L),NGHBVL,NAUX,6,IBOUND,NLAY)
BNDS(NGHBVL,L)=RATE
100 CONTINUE
C
C6------IF CELL-BY-CELL TERMS WILL BE SAVED AS A 3-D ARRAY, THEN CALL
C6------UTILITY MODULE UBUDSV TO SAVE THEM.
IF(IBD.EQ.1) CALL UBUDSV(KSTP,KPER,TEXT,IGHBCB,BUFF,NCOL,NROW,
1 NLAY,IOUT)
C
C7------MOVE RATES, VOLUMES AND LABELS INTO ARRAYS FOR PRINTING.
200 RIN=RATIN
ROUT=RATOUT
VBVL(3,MSUM)=RIN
VBVL(1,MSUM)=VBVL(1,MSUM)+RIN*DELT
VBVL(4,MSUM)=ROUT
VBVL(2,MSUM)=VBVL(2,MSUM)+ROUT*DELT
VBNM(MSUM)=TEXT
C
C8------INCREMENT THE BUDGET TERM COUNTER.
MSUM=MSUM+1
C
C9------RETURN.
RETURN
END
SUBROUTINE VDF2GHB7DA(IGRID)
C Deallocate GHB MEMORY
USE GWFGHBMODULE
C
CALL SGWF2GHB7PNT(IGRID)
DEALLOCATE(NBOUND)
DEALLOCATE(MXBND)
DEALLOCATE(NGHBVL)
DEALLOCATE(IGHBCB)
DEALLOCATE(IPRGHB)
DEALLOCATE(NPGHB)
DEALLOCATE(IGHBPB)
DEALLOCATE(NNPGHB)
DEALLOCATE(GHBAUX)
DEALLOCATE(BNDS)
C
RETURN
END
SUBROUTINE SVDF2GHB7PNT(IGRID)
C Change GHB data to a different grid.
USE GWFGHBMODULE
C
NBOUND=>GWFGHBDAT(IGRID)%NBOUND
MXBND=>GWFGHBDAT(IGRID)%MXBND
NGHBVL=>GWFGHBDAT(IGRID)%NGHBVL
IGHBCB=>GWFGHBDAT(IGRID)%IGHBCB
IPRGHB=>GWFGHBDAT(IGRID)%IPRGHB
NPGHB=>GWFGHBDAT(IGRID)%NPGHB
IGHBPB=>GWFGHBDAT(IGRID)%IGHBPB
NNPGHB=>GWFGHBDAT(IGRID)%NNPGHB
GHBAUX=>GWFGHBDAT(IGRID)%GHBAUX
BNDS=>GWFGHBDAT(IGRID)%BNDS
C
RETURN
END
SUBROUTINE SVDF2GHB7PSV(IGRID)
C Save GHB data for a grid.
USE GWFGHBMODULE
C
GWFGHBDAT(IGRID)%NBOUND=>NBOUND
GWFGHBDAT(IGRID)%MXBND=>MXBND
GWFGHBDAT(IGRID)%NGHBVL=>NGHBVL
GWFGHBDAT(IGRID)%IGHBCB=>IGHBCB
GWFGHBDAT(IGRID)%IPRGHB=>IPRGHB
GWFGHBDAT(IGRID)%NPGHB=>NPGHB
GWFGHBDAT(IGRID)%IGHBPB=>IGHBPB
GWFGHBDAT(IGRID)%NNPGHB=>NNPGHB
GWFGHBDAT(IGRID)%GHBAUX=>GHBAUX
GWFGHBDAT(IGRID)%BNDS=>BNDS
C
RETURN
END