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Table of Contents - The Atmospheric Studies Group at TRC

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Section 9: CALPUFF<br />

9.15.4 Dry Flux File (DFLX.DAT)<br />

<strong>The</strong> DFLX.DAT file is an unform<strong>at</strong>ted d<strong>at</strong>a file containing dry deposition fluxes <strong>of</strong> one or more species<br />

simul<strong>at</strong>ed by CALPUFF <strong>at</strong> each receptor, for each period in the run. <strong>The</strong> cre<strong>at</strong>ion and contents <strong>of</strong> the<br />

DFLX.DAT file are controlled by user-specified inputs in Input <strong>Group</strong> 5 <strong>of</strong> the control file (see Section<br />

9.1).<br />

<strong>The</strong> control file variable IDRY must be set equal to one in order to cre<strong>at</strong>e the DFLX.DAT file. <strong>The</strong><br />

species saved in the output file are also controlled by the user by setting flags in the output species table<br />

in Input <strong>Group</strong> 5 <strong>of</strong> the control file. <strong>The</strong> model checks th<strong>at</strong> only deposited species are flagged for output<br />

into the DFLX.DAT file. <strong>The</strong> effects <strong>of</strong> dry deposition on ambient concentr<strong>at</strong>ions can be evalu<strong>at</strong>ed<br />

without saving the dry fluxes in the output file if the actual values <strong>of</strong> the deposition fluxes are not <strong>of</strong><br />

interest.<br />

DFLX.DAT File - Header Records<br />

<strong>The</strong> DFLX.DAT file consists <strong>of</strong> NCOM+7 header records followed by a set <strong>of</strong> d<strong>at</strong>a records. <strong>The</strong> header<br />

records contain inform<strong>at</strong>ion describing the version <strong>of</strong> the model used in the run cre<strong>at</strong>ing the file,<br />

horizontal and vertical grid d<strong>at</strong>a, a user-input title, a list <strong>of</strong> the species combin<strong>at</strong>ions stored in the output<br />

file, and receptor inform<strong>at</strong>ion (see <strong>Table</strong> 9-54). NCOM, provided in record 2, defines the number <strong>of</strong><br />

comment records th<strong>at</strong> are present. Comment records are used to transfer the image <strong>of</strong> CALMET and<br />

CALPUFF control files used in the simul<strong>at</strong>ion for document<strong>at</strong>ion and QA purposes.<br />

Sample FORTRAN read st<strong>at</strong>ements for the header records are:<br />

READ(iunit) DATASET,DATAVER,DATAMOD<br />

READ(iunit) NCOM<br />

DO n=1,NCOM<br />

READ(iunit) COMMENT<br />

ENDDO<br />

READ(iunit)CMODEL,VER,LEVEL,IBYR,IBJUL,IBHR,IBSEC,XBTZ,<br />

1 IRLG,IAVG,NSECDT,NXM,NYM,DXKM,DYKM,IONE,XORIGKM,YORIGKM,NSSTA,IBCOMP,IECOMP,<br />

2 JBCOMP,JECOMP,IBSAMP,JBSAMP,IESAMP,JESAMP,MESHDN,NPT1,NPT2,NAR1,NAR2,NLN1,NLN2,<br />

3 NVL1,NVL2,MSOURCE,NREC,NCTREC,LSAMP,NDFOUT,LCOMPR,<br />

4 I2DMET,IUTMZN,FEAST,FNORTH,RNLAT0,RELON0,<br />

5 XLAT1,XLAT2,PMAP,UTMHEM,DATUM,DATEN,<br />

6 CLAT0,CLON0,CLAT1,CLAT2<br />

READ(iunit)TITLE<br />

READ(iunit)CDFOUT<br />

IF(NDREC.GT.0) READ(iunit)XREC,YREC,ZREC<br />

IF(NCTREC.GT.0) READ(iunit)XRCT,YRCT,ZRCT,IHILL<br />

IF(NPT1.GT.0) READ(iunit)ISTYPE,CNAMPT1<br />

IF(NPT2.GT.0) READ(iunit)ISTYPE,CNAMPT2<br />

IF(NAR1.GT.0) READ(iunit)ISTYPE,CNAMAR1<br />

IF(NAR2.GT.0) READ(iunit)ISTYPE,CNAMAR2<br />

IF(N LN1.GT.0) READ(iunit)ISTYPE,CNAMLN1<br />

IF(NLN2.GT.0) READ(iunit)ISTYPE,CNAMLN2<br />

9-259

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