Mar 13 – 15, 2017
Université Pierre et Marie Curie, Paris
Europe/Paris timezone

LOTUS is an international research initiative endorsed by SPARCIO3C and WMO (GAW) that kicked off at the Quadrennial Ozone Symposium in 2016. LOTUS focuses on revisiting the estimates and understanding of Long-term Ozone Trends and Uncertainties in the Stratosphere, in preparation for the WMO/UNEP 2018 Ozone Assessment. More detailed information on LOTUS can be found at our main website.

LOTUS will hold its first workshop mid March 2017 in Paris, France. This invite-only workshop will be informal with selected scheduled oral presentations and with ample time for discussions in large or small groups.

Main objectives

  • Status update of the activities within the MIDI (production of time series) and ROAST working group (regression analyses of time series).
  • Discussion of first results, where to head next and planning of the remaining work.
  • Discussion and planning of LOTUS report.
  • Identification of open issues and scope of LOTUS.

We gratefully acknowledge the support by



Group picture

Université Pierre et Marie Curie, Paris
Room 108, Tower 45, Corridor 44-54 (1st floor)
4 place Jussieu, 75005 Paris, France