1 / 9

Opening Remarks

13 th Biennial WMO-GAW Brewer Users Workshop. Opening Remarks. Launching MAESTRO And DUSTER on a CNES Payload in Kiruna, Sweden April 7, 2011. Tom McElroy York University. History of Brewer Meetings. 1. Arosa, Switzerland, 1990. Charlottesville, Virginia, 1992.

allan
Download Presentation

Opening Remarks

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. 13th Biennial WMO-GAW Brewer Users Workshop Opening Remarks Launching MAESTRO And DUSTER on a CNES Payload in Kiruna, Sweden April 7, 2011 Tom McElroy York University

  2. History of Brewer Meetings 1. Arosa, Switzerland, 1990. • Charlottesville, Virginia, 1992. • Tennerife, Canary Islands, Spain, 1994 • Rome, Italy, 1996. • Halkidiki, Greece, 1998. • Tokyo, Japan, 2000. • Toronto, Canada, 2002. • El Arenosillo, Spain, 2003. • Delft, The Netherlands, 2005. • Manchester, UK, 2007. • Seoul, Korea, 2007. • Aosta, Italy. • Beijing, China.

  3. Oxford 1936 Forerunner of the Quadrennial Ozone Symposium From the Oxford University website: www.atm.ox.ac.uk/main/AOPP/Dobson.html#gmbd

  4. The Ozone Depletion Issue • 1920s - Dobson’s European network measurements • 1930 - Chapman Chemistry • Radical Chemistry – HOx – Bates & Nicolet 1950 • Hampson - c.a. - 1980 NOx • Climatic Impact Assessment Program – US FAA 1970 • James Lovelock – discovery of long lifetimes of CFCs 1973 • Mid 1970s – Rowland and Molina UV destruction • Ozone hole discovery – Farman et al. & NASA TOMS 1985 • NASA ER-2 links ClO and ozone destruction • 1987 Montreal Protocol to protect the ozone layer (and amendments!) • Suggestive observations – ozone not going down anymore • 2010 – 2011 winter brings unprecedented ozone destruction • But will we be here to be sure it recovers?

  5. From NATURE… August, 2009 • climate change cooling in the Polar stratosphere • could cause increased ozone destruction • ozone is a GHG in the upper troposphere • recent research shows closer links between • stratospheric and background tropospheric ozone • some climate change effects in the Antarctic may • be stratospheric in origin • large ozone loss in 2010-2011 Arctic winter

  6. Where are we heading? • Accurate, long-term records of total ozone column amount are crucial for understanding climate change • Hemispheric ozone can only be assessed using satellite ozone fields • Calibrated, ground-based data are essential for delivering satellite data sets with the required long-term stability • Ground-based measurements may turn out to be important in constraining tropospheric ozone in chemical forecast models

  7. Why are we here? • Further the goal of improving and maintaining Brewer network performance • Exchange the knowledge needed to achieve this • Increase the volume of high-quality ozone data in the WOUDC to support trend analysis and other ozone-related research (WMO Ozone Assessment) • Communicate the importance of maintaining the long-term record of column ozone

  8. The Brewer Workshops • Informal (timetable will change – need input) • Supporting the interchange of Brewer-related scientific and technical information • ‘Free’ time to allow one–on-one exchange of information and problem solving • Interface between industry and the Brewer community • Formal channel connecting the Brewer community and the NDACC* * Network for the Detection of Atmospheric Composition Change

  9. Closing • Thank you to Dr. Zheng Xiandong and CMA for hosting the meeting • Thanks as well to Ms. Yan and Ms. Song • Acknowledge the support of WMO and under the GAW program • Sponsorship and technical support for the network from Kipp & Zonen and International Ozone Services (IOS).

More Related