Ozonesondes
The details of the homogenization process, the list of homogenized sites and where to find them, can be found here.
Global map of around 60 active ozonesonde sites. Green dots mark the stations with homogenized data available at the HEGIFTOM ftp-server.
Bar plots showing the time range of available homogenized ozonesonde records. Stations marked with * consist partially of Brewer-Mast ozonesonde data (Uccle, Payerne, dashed lines) or entirely (Hohenpeissenberg). The Brewer-Mast data of Uccle and Payerne is not available at the HEGIFTOM ftp-server, but should be downloaded from either WOUDC or NDACC.