*Readme file for line transition parameters* In this directory, you will find ******************************** geisa2003_line.gz : the GEISA 2003 database for line transition parameters PerMolecule directory : It contains the GEISA 2003 database for each molecule. Name of the files : geisa2003_XX.mol where XX represents the molecule ID. (see below) Supplemental directory : It contains the geisa2003_01bis.mol file. This file is an alternative for the geisa2003_01.mol file : it contains alternative line parameters in the 10 microns region of H2O. This list has been issued in 2003 as a support study for IASI (Stewart, B.C. (Ed.) 2003. Support study on Water Vapor Spectroscopy for IASI. Final Report, EUMETSAT Contract EUM/CO/01/939/DK. 159 pp.) Molecule and isotope codes for the 42 molecules archived in the GEISA 2003 database **************************************************************************************** molecule id isotopes quantic codes h2o 1 161 181 171 162 182 172 V1,V2,V3 co2 2 626 636 628 627 638 637 828 728 838 V1,V2,L2,V3,R o3 3 666 668 686 667 676 V1,V2,V3 n2o 4 446 456 546 448 447 V1,V2,L2,V3 co 5 26 36 28 27 38 37 V ch4 6 211 311 212 V1,V2,L2,V3,L3,V4,L4,L_XVYS o2 7 66 lV no 8 46 48 56 Xa/b___V so2 9 626 646 V1,V2,V3 no2 10 646 V1,V2,V3 nh3 11 411 511 V1,V2,V3,V4,S ph3 12 131 V1,V2,V3,V4 hno3 13 146 XVY oh 14 61 62 81 V hf 15 19 V hcl 16 15 17 V hbr 17 11 19 V hi 18 17 V clo 19 56 76 V ocs 20 622 624 632 623 822 634 722 V1,V2,L2,V3 h2co 21 126 128 136 V1,V2,V3,V4,V5,V6 c2h6 22 226 236 XVY+X1V1Y1 ch3d 23 212 XVY c2h2 24 221 231 V1,V2,V3,V4,L4,V5,L5,L c2h4 25 211 311 XVY geh4 26 411 V1,V2,L2,V3,L3,V4,L4,L hcn 27 124 125 134 V1,V2,L2,V3 c3h8 28 221 XVY c2n2 29 224 V1,V2,V3,V4,L4,V5,L5 c4h2 30 211 XVY hc3n 31 124 V5,V6,V7,L,S hocl 32 165 167 V1,V2,V3 n2 33 44 V ch3cl 34 215 217 XVY h2o2 35 166 V1,V2,V3,V4,V5,V6 h2s 36 121 131 141 V1,V2,V3 hcooh 37 261 XVY hcn 27 124 125 134 V1,V2,L2,V3 c3h8 28 221 XVY c2n2 29 224 V1,V2,V3,V4,L4,V5,L5 c4h2 30 211 XVY hc3n 31 124 V5,V6,V7,L,S hocl 32 165 167 V1,V2,V3 n2 33 44 V ch3cl 34 215 217 XVY h2o2 35 166 V1,V2,V3,V4,V5,V6 h2s 36 121 131 141 V1,V2,V3 hcooh 37 261 XVY cof2 38 269 V1,V2,V3,V4,V5,V6 sf6 39 29 XVY c3h4 40 341 XVY ho2 41 166 V1,V2,V3 clono2 42 564 764 XVY+X1V1Y1 Format description for the GEISA 2003 database: *************************************************** (F12.6,D11.4,F6.4,F10.4,A36,F4.2,I3,I3,A3,I2,I1,E10.3,F5.4,F8.6,I3,I6,F6.4,F10.6,D11.4,F6.4,F4.2,F8.6,F6.4,F5.4,F4.2,F4.2,F8.6,F8.6,F4.2,F4.2) A B C D E F G I J K L M N O P Q R A' B' C' F' O' R' N' S S' T T' U U' A: wavenumber (cm-1) of the line B: intensity of the line in (cm-1/(molecule.cm-2) @296K C: Air broadening pressure halfwidth (HWHM) (cm-1atm-1) @296K D: Energy of the lower transition level (cm-1) E: Transition quantum identifications for the lower and upper state of the transition F: temperature dependence coefficient n of the air broadening halfwidth G: identification code for isotope as in GEISA I: identification code for molecule as in GEISA J: Internal GEISA code for the data identification K: Molecule number as in HITRAN L: isotope number (1=most abundant, 2= second...etc) as in HITRAN M: transition probability (in debye2) N: self broadening pressure halfwidth (HWHM) (cm-1atm-1) @296K (for water) O: air pressure shift of the line transition (cm-1atm-1) @296K P: accuracy indices for frequency, intensity and halfwidth Q: indices for lookup of references for frequency, intensity and halfwidth R: temperature dependence coefficient n of the air pressure shift A': estimated accuracy (cm-1) on the line position B': estimated accuracy on the intensity of the line in (cm-1/(molecule.cm-2) C': estimated accuracy on the air collision halfwidth (HWHM) (cm-1atm-1) F': estimated accuracy on the temperature dependence coefficient n of the air broadening halfwidth O': estimated accuracy on the air pressure shift of the line transition (cm-1atm-1) @296K R': estimated accuracy on the temperature dependence coefficient n of the air pressure shift N': estimated accuracy on the self broadened (HWHM) (cm-1atm-1) @296K (for water) S: temperature dependence coefficient n of the self broadening halfwidth (for water) S': estimated accuracy on the temperature dependence coefficient n of the self broadening halfwidth (for water) T: self pressure shift of the line transition (cm-1atm-1) @296K (for water) T': estimated accuracy on the self pressure shift of the line transition (cm-1atm-1) @296K (for water) U: temperature dependence coefficient n of the self pressure shift (for water) U': estimated accuracy on the temperature dependence coefficient n of the self pressure shift (for water) Default values used in GEISA 2003: ********************************* Line Intensity (cm molecule-1 at 296K) -1 Lorentzian collision halfwidth (cm-1 atm-1 at 296K) -0.9999 Lower transition level Energy(cm-1) -1 Temperature dependence coefficient n of the halfwidth 0.75