The Cooperating Network Agreement between NDACC and the Pandonia Global Network (PGN) was finalized on 24 June 2020.
As a result of this agreement, Barry Lefer (NASA Headquarters) and Angelika Dehn (also the ESA-ESRIN Representative) have been named PGN Co-Representatives to the NDACC Steering Committee.
The third SPARC/WMO Long-term Ozone Trends and Uncertainties in the Stratosphere (LOTUS) workshop originally planned for Helsinki was held virtually May 28-29, 2020.
New output for 2019 is available for all stations. The files are generated from a GMI chemistry transport model (CTM) simulation integrated with MERRA2 reanalysis meteorology – the same version as used for 1985-2018 files. All files can be downloaded via anonymous ftp from ftp://ftp.cpc.ncep.noaa.gov/ndacc/gmi_model_data.
The OI3C has changed the date for the Quadrennial Ozone Symposium. The QOS will now be October 3 to 9, 2021 at the Yonsei University, Seoul, Korea. Details can be found at http://qos2021.yonsei.ac.kr/
The ASOPOS (Assessment of Standard Operating Procedures for OzoneSondes) Panel, a group of ~20 ozonesonde expert data-providers, was formed in 2004. ASOPOS, under WMO/GAW sponsorship, has issued periodic reports on ozonesonde quality assurance, including evaluations of sonde intercomparisons in the Juelich Ozonesonde Intercomparison Experiment (JOSIE) series. 
The report documents include the WMO/GAW Report 201 on ozonesonde standard procedures (Smit