1 / 18

Overview of Swiss activities R. Stübi, D. Ruffieux , B. Calpini

Overview of Swiss activities R. Stübi, D. Ruffieux , B. Calpini Federal Office of Meteorology and Climatology, MeteoSwiss, Switzerland Acknowledgements for the different “teams” behind these activities: Payerne team Arosa team Collaborating laboratories. Swiss organisation.

veta
Download Presentation

Overview of Swiss activities R. Stübi, D. Ruffieux , B. Calpini

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Overview of Swiss activities R. Stübi, D. Ruffieux, B. Calpini Federal Office of Meteorology and Climatology, MeteoSwiss, Switzerland Acknowledgements for the different “teams” behind these activities: Payerne teamArosa team Collaborating laboratories

  2. Swiss organisation • Main task of MeteoSwiss is monitoring • Applied research in support to monitoring • R&D are mainly devoted to Universities and Research Laboratories Outline of the presentation • Examples of ozone time series measured in Switzerland : Arosa, Payerne, and Nairobi • Data quality control: Brewer triade stability • Applied research : Automated Dobson

  3. Outline of the presentation • Examples of ozone time series measured in Switzerland : Arosa, Payerne, and Nairobi • Data quality control: Brewer triade stability • Applied research : Automated Dobson

  4. Arosa station total ozone monitoring site • Arosa Alpine site (1850 masl) with Brewer and Dobson • Monitoring activity focused on total ozone and Umkehr • Triade of Brewer : Brewer : B040 (1988), B072 (1993), B156 (1998) • Triadeof Dobson : D101 (1968), D051 (1991), D062 (1993)

  5. Arosa long term total ozone series Yearly mean of Dobson total ozone column [DU]

  6. Payerne station ozone monitoring site • Payerne Mittelland site (491 masl) with radiosounding and microwave radiometer (in collaboration with Uni Bern IAP) • Monitoring activity focused on profiles

  7. Payerne 2002: change from BM to ECC ozone sondes After a larger series of BM - ECC dual flights, Payerne changed to ECC sondeNo difference are noticeable at the different levels !

  8. Microwave radiometer GROMOS time series (Uni Bern IAP) Microwave radiometer SOMORA time series (Payerne)

  9. Payerne issupporting the Nairobi ozone station • Radiosoundingssince 1996 • Dobson measurements for 1984 – 1999 and againsince 2005 (MCH resp.) • Surface ozone since 2012

  10. Outline of the presentation • Examples of ozone time series measured in Switzerland : Arosa, Payerne, and Nairobi • Data quality control: Brewer triade stability • Applied research : Automated Dobson

  11. Times series of Brewer B040 total ozone Single Brewer values total ozone column [DU]

  12. Monthly difference toward Brewer triade mean [%] B040B072B156

  13. Outline of the presentation • Examples of ozone time series measured in Switzerland : Arosa, Payerne, and Nairobi • Data quality control: Brewer triade stability • Applied research : Automated Dobson

  14. From a «classical» manualDobson to …

  15. .. an automated Dobson system Attenuator Wavelength selector

  16. Sun tracking mechanisms Sun elevation Sun azimuth

  17. Dobson: from manual to automated measurements Manual operation impacts the reproducibility, the measurement frequency and the costs.Time series for Brewer 040 and automatedDobson 062 360 14/04/2014 355 350 Total ozone column [DU] 345 340 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 Time

  18. Summary • Our main goal is to provide highest quality and longest possible time series of ozone to the scientific community • Monitoring implies • Long-term support • Scientific accompaniment of data acquisition (QA/QC) • Good collaboration between monitoring stations and scientific laboratories and Universities

More Related