1. Federal Department of Home Affairs FDHA Federal Office of Meteorology and Climatology MeteoSwiss Report on Swiss ORM related activities Ozone Reseach Manager Meeting, May 18-21, 2008 WMO Geneva R. Stübi, MeteoSwiss, Payerne

2. 2 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Overview of Swiss activities

3. 3 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Arosa Umkehr time series

4. 4 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Payerne ozonesonde time series

5. 5 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Payerne ozonesonde time series Jeannet et al., JGR 2007

6. 6 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Bern-Payerne Ozone -wave time series

7. 7 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Microwave ozone time analysis Haefele et al. 2008; Hocke et al., ongoing research

8. 8 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Nairobi ozonesonde climatology

9. 9 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Nairobi ozonesonde annual cycles

10. 10 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Dobson – Brewer diff. vs. stratosph. T Scarnato, IAC-ETH, PhD thesis 2008

11. 11 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Dobson – Brewer diff. vs. X-section

12. 12 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi Concluding remarks Close collaboration between data providers and users Networking at different levels (national, intern., WMO- GAW, NDACC, R&D project, …) Efficient cooperation between developed and developing countries takes time, personal contact and patience Multiple to one approach: D018 instrument in Nairobi (coll. CZ, D, CH) Remind the Brewer Intercomparison July 20-30 in Arosa collaboration Spain - Switzerland