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Federal Department of Home Affairs FDHAFederal 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 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi

Overview of Swiss activities

3 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi

Arosa Umkehr time series

4 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi

Payerne ozonesonde time series

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Payerne ozonesonde time series

Jeannet et al., JGR 2007

6 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi

Bern-Payerne Ozone -wave time series

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Microwave ozone time analysis

Haefele et al. 2008; Hocke et al., ongoing research

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Nairobi ozonesonde climatology

-50 0 50 100 150

51

01

52

02

53

03

5

Alti

tud

e [k

m]

Ozone [nbar]Temperature [°C]

Payerne

Nairobi

Payerne

Nairobi

Temperature Ozone

9 Ozone Reseach Manager Meeting, May 18-21, Geneva, R.Stübi

Nairobi ozonesonde annual cycles

N

N

N

NN

N N

N

N

NN

N

2 4 6 8 10 12

-30

-20

-10

01

02

03

0

Month

De

via

tion

[%]

N

N

N

NN

N N

N

N

NN

N

N NN

N N N N NN

N N NN

N NN

N N

NN N N

N

N

P

P

P

P

P

P

P

P

P

P P

P

P

PP

P

PP P

P

P P

P

P

P

P

P

PP

P PP

P

P

P PMid-tropo.

Ozone max

Mid-strato.

P: PayerneN: Nairobi

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Dobson – Brewer diff. vs. stratosph. T

Scarnato, IAC-ETH, PhD thesis 2008

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Dobson – Brewer diff. vs. “X-section”

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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