EOS Validation Program

Institution: Jet Propulsion Laboratory
                    MS 183-301
                    4800 Oak Grove Dr.
                    Pasadena,, CA 91109
Phone: (818) 354-4701
FAX: (818) 354-4701
E-mail: eac@spec.jpl.nasa.gov

H. M. Pickett, JPL
B. J. Drouin, JPL
C. E. Miller, Haverford College

February 2003
April 2004
Final Report

We will address the immediate requirements of the EOS-MLS program by carrying out laboratory measurements of all the linewidths that are necessary for the interpretation of returned MLS data. These include transitions of the free radicals OH, HO2, and BrO. Other molecular transitions include several near 2.5 THz of H2O and O3 and weak transitions of O2. This new proposal will be directed toward the measurements in the 600 GHz and 2500 GHz range. These will be addressed in the order of the priorities set forth in the MLS list of requirements within each frequency region. Linewidth measurements will be compared to available data for these molecules in the infrared region and to theoretical calculations.

Measurements made in this laboratory have, and will continue to be made available to the HITRAN database. Any incidental improvement of line positions will be also included in the continuously updated versions of the JPL Submillimeter, Millimeter, and Microwave Spectral Line Catalog. After the immediate requirements of the MLS program have been met, we will carry out corroborative measurements of related transitions to assure consistency of the data set and facilitate comparisons with theory and measurements of other investigators. This will also continue to improve the status of the submillimeter and far infrared data bases of linewidths in anticipation of still more advanced versions of MLS and related instruments.