Coriolis DAC transition to version traj-3.2.1 trajectory files

The Coriolis DAC prepares the transition to version traj-3.2.1 of its trajectory files.

All the trajectories from the matlab Coriolis processing chain will be reprocessed and pushed on Argo GDAC (Coriolis DAC only) on Monday, June 12, 2023.

We know that some tools, for example for BGC-Argo, use B-traj files which disappear with version traj-3.2.1. A transition period is necessary to adapt tools.

We propose this transition phase:

• May 9, 2023
  The new Coriolis traj-3.2.1 DAC trajectories are produced in a specific directory https://data-argo.ifremer.fr/etc/coriolis-custom/traj-3.2.1 
• June 12, 2023
  The new traj-3.2.1 trajectories of the DAC Coriolis are distributed on the Argo GDAC which cancel and replace the traj-3.1 and B-traj-3.1
  The old traj-3.1 trajectories continue to be produced in a specific directory for 6 months https://data-argo.ifremer.fr/etc/coriolis-custom/traj-3.1 
• December 11, 2023
  End of the transition period, the traj-3.1 double distribution is removed.

Please note that these changes concern Coriolis DAC only, the transition to traj-3.2.1 format is managed DAC by DAC.