pratherUCI
commented
1 year ago If you want to add a new photolysis cross section then you need to run AddX to calculate a Cloud-J table from the tabulated cross sections you have.
Look up 'UCI_FJ_AddXs76.zip' as that has all the short, standalone codes that process from your tables to CL tables like below:
OCS !OCS=>CO+S ! OCS = carbonyl sulfide JPL10 200a 5.275E-20 3.879E-20 2.920E-20 2.343E-20 6.049E-20 1.232E-19 OCS 200b 1.691E-19 2.181E-19 9.974E-21 4.126E-20 2.417E-20 9.292E-25 OCS 200c 0.000E+00 0.000E+00 0.000E+00 0.000E+00 0.000E+00 0.000E+00 OCS OCS ! ! 300a 7.547E-20 5.314E-20 3.637E-20 2.436E-20 6.009E-20 1.222E-19 OCS 300b 1.689E-19 2.186E-19 1.382E-20 4.616E-20 2.470E-20 3.294E-24 OCS 300c 7.435E-26 0.000E+00 0.000E+00 0.000E+00 0.000E+00 0.000E+00 OCS
The formatting must be exact and you can add 2 different temperatures (or pressures) that the CJ code interpolates between (It does NOT extrapolate). The zip file you can find on the github or else at my ftp site: 128.200.14.8/public/prather/Fast-J_&_Cloud-J/ Login in as anonymous.
This is NOT automatic, you must know what cross sections and quantum yields you have and revise the fortran codes to use them. The integration and weighting over wavelength is the core part and requires no effort from you, but the subroutines that calculate the cross sections can vary with species. There are several different examples.
BTW, if you are doing NF3, then be careful about the quantum yield being less than 1.
Michael Prather
ese-Liyl
yantosca
Hello! I would like to implement cross-section interpolation for new species using Clould-J. Now I have created and generated the cloudj_standclone executable independently. How can I input the existing cross-sectional experimental data (e.g. addX_NF3.f file) into the ~/tables/ directory and run Could-J and get the interpolated results (e.g. addX_NF3.out file)?