Py4CATS

• extract (select) lines of a certain molecule (and isotope) and/or wavenumber range from line parameter database
• lbl2od computation of line-by-line optical depth due to molecular absorption

lblod4esas_v2.tgz

Previous Versions

Prerequisites:

• Python (version 2.5 or better) python.org
• numpy — Numeric Python numpy.org
• Additionally (depending on some of the options set):
  • scipy — Scientific Python scipy.org
  • matplotlib
• (Obviously you also need a copy of the Hitran or Geisa line parameter databases)

1. Save the package at some convenient place and unpack it: tar xvfz lblod4esas.tgz
2. Ideally add the bin directory to your system search PATH
3. If you are reading user guide's etc: in your browser open the index.html file in the doc directory;
   Otherwise just extract line parameters from HITRAN and GEISA, then compute optical depth via cross sections by lbl2od

Franz Schreier