Data Quality Flags for ACE-FTS Level 2 Version 4.0 Data Set

Data quality flags generated for the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) Level 2 (L2) version 4.0 data products. These data quality flags are generated using the technique described in Sheese et al. (2015)., One netCDF file is produced for each species, isotopologue or parameter retrieved from the ACE-FTS spectra for version 4.0. Each file contains the data quality flags organized by occultation (orbit number and occultation type). Note, the ACE-FTS Level 2 version 4.0 profiles are not included in these files., The data quality flag files are produced for the entire ACE-FTS Level 2 version 4.0 data set (February 2004 - May 2020). This data version has been retired with the production of version 4.1 of the ACE-FTS data set.