Author : $Author: jdelamer $ Revision : $Revision: 1.5 $ Created : $Date: 2011/03/02 18:33:23 $ INSTRUCTIONS FOR LINE FILE CREATION FOR LBLRTM... LNFL LNFL now accommodates the 160 character format adopted for HITRAN_2004. However, the default format for LNFL will remain the 100 character format. The rationale for this choice is that the vibrational data as stored in the 100 character format is more amenable to utlization in LBLRTM, particularly for LBLRTM Non-LTE calculation than that associated with the 160 character format for which the vibrational information had been expanded to facilitate association of the lines with the quantum mechanical vibrational designations. Presently, the capability to accomodate the 160 character format is restricted to TAPE1. Note 1: To facilitate the change to HITRAN2004 format some of the LNFL flags on Record 3 in older releases have been distributed to Records 3 and 4. On Record 3, the flags include those that are general for the LNFL run and those that are relevant to TAPE1. On Record 4, the flags include those relevant to TAPE2 only. Note 2: The default for blocking has been changed. No blocking is now the default. Flags NBLK1 and NBLK2 are no longer necessary and are ignored. Note 3. The writing of internally stored line coupling information to TAPE2 is no longer supported. Line coupling information may be included explicitly on TAPE1 or TAPE2 by the user. ------------------------------------------------------------------------- FILE ASSIGNMENTS FOR LNFL TAPE1 ASCII LINE FILE (e.g., HITRAN database) TAPE2 Supplemenatry ASCII Line File to be merged with TAPE1 TAPE3 BINARY OUTPUT FILE (input for LBLRTM) TAPE5 LNFL INPUT FILE (see lnfl_instructions) TAPE7 ASCII OUTPUT FILE (ascii version of TAPE3) ------------------------------------------------------------------------- RECORD 1 XID: 72 characters of user identification (9A8) RECORD 2 VMIN, VMAX 1-10, 11-20 F10.3, F10.3 VMIN low wavenumber limit for the line file VMIN should be 25 cm-1 less than V1 for LBLRTM calculation VMAX high wavenumber limit for the line file VMAX should be 25 cm-1 greater than V2 for LBLRTM calculation RECORD 3 MIND1(M=1,39), HOLIND1 1-39, 44-83 39I1,4X, A40 MIND1(M) Molecular INDicator for Molecule M from line data on file TAPE1 0 molecule M is not selected 1 molecule M is selected note that molecule number and column number are the same (M): AVAILABLE ( 1) H2O ( 2) CO2 ( 3) O3 ( 4) N2O ( 5) CO ( 6) CH4 ( 7) O2 MOLECULAR ( 8) NO ( 9) SO2 (10) NO2 (11) NH3 (12) HNO3 (13) OH (14) HF SPECIES (15) HCL (16) HBR (17) HI (18) CLO (19) OCS (20) H2CO (21) HOCL (22) N2 (23) HCN (24) CH3CL (25) H2O2 (26) C2H2 (27) C2H6 (28) PH3 (29) COF2 (30) SF6 (31) H2S (32) HCOOH (33) HO2 (34) O (35)CLONO2 (36) NO+ (37) HOBR (38) C2H4 (39) C3HOH HOLIND1 HOLlerith INDicator to select general LNFL options and specific options for TAPE1 LNOUT selects option to provide formatted representation of TAPE3 on file TAPE7 representation is identical to TAPE1 and TAPE2, one transition per record *** CAUTION *** this option may produce a VERY LARGE output file NOCPL suppresses all line coupling information on TAPE3 and TAPE7 NLTE preserves transition parameters for LBLRTM Non Local Thermodynamic Equilibrium (NLTE) option REJ selects line rejection and requires input data for strength rejection (record 5) MRG2 line parameters on TAPE2 are to be merged with those on TAPE1 F160 selects the 160 character format for TAPE1 (e.g. HITRAN_2004) BLK1 indicates TAPE1 is blocked (Note: NBLK1 is ignored) ** H86T1 omits SHIFT line coupling information in 1986 HITRAN or later from TAPE1 ** Not available in this version of LNFL RECORD 4 IF MRG2 SELECTED ON RECORD 3: second line for TAPE2 data source required MIND2(M=1,39), HOLIND2 1-39, 44-83 39I1,4X, A40 MIND2(M) Molecular INDicator for Molecule M from line data on file TAPE2 0 molecule M is not selected 1 molecule M is selected HOLIND2 HOLlerith INDicator to select specific LNFL options for TAPE2 BLK2 indicates TAPE2 is blocked (Note: NBLK2 is ignored) F80 replacement or supplemental line data in 80 character format from TAPE2 merged with line data from TAPE1. TAPE3 parameters required for LBLRTM from 80 character formatted data are set to default parameters by LNFL ( 1982 HITRAN format ). ** H86T2 omits SHIFT line coupling information in 1986 HITRAN or later from TAPE2 ** Not available in this version of LNFL RECORD 5... IF ( HOLIND .EQ. REJ ) line rejection option selected SR(M=1,NMOL) 8E10.3 SR(M) Strength Rejection value for Molecule M lines with strength values less than SR(M) will not be included on LBLRTM line file (TAPE3) negative value for SR(M) uses internally stored default value based on tangent path through the earth's atmosphere a value of 0. for SR(M) implies no rejection for molecule M, all lines for that molecule are retained values for SR(M) are relative to LBLRTM line strengths: AFGL strengths / ( v * (1-exp(v/kT)) ) NMOL is 7 or the number of the highest molecule selected, whichever is larger