1. Regional Report on Ozone Observation Ozone Observation [ RA-II: Asia ] Regional Report on Ozone Observation Ozone Observation [ RA-II: Asia ] Hidehiko ISOBE Ozone Monitoring Center Japan Meteorological Agency 9th Meeting of the Ozone Research Managers of the Vienna Convention for the Protection of the Ozone Layer, Geneva, 14-16 May 2014 1

2. Satellite data (OMI, Aura/NOAA) 2 Importance of Ozone observation in RA-II  Total ozone has the maximum area around the Far-East in boreal winter - spring. => RA-II is one of the most important area for ozone observation. March 2013

3. National Reports of RA-II Countries [ Ozone observation ] 3 Ten countries have submitted the national report to the meeting. Seven of them have reported on the ozone observation in each country. Ten countries have submitted the national report to the meeting. Seven of them have reported on the ozone observation in each country.  The network of ozone observations are systematically operated. Vietnam has improved its instrument in 2011.  Calibration activities of observation data are carried out in some countries.  Two Central Asian countries need support to improve observation system and calibrate instrument.  Two southern Asia countries need financial and technical supports to start ozone observation.

4. 4 National Reports of RA-II Countries [ Ozone observations ] CountryTotal Ozone (ground-base) China9 Iran3 Japan4 Kyrgyzstan1 Russia42 Turkmenistan1 Vietnam3 Table: the number of observation stations noted in each national report

5. 5 Observation stations in RA-II (Total Ozone) Distribution of total ozone observation stations with data archived in the database of the World Ozone and Ultraviolet radiation Data Center (2009-2013) Brewer Brewer Filter Filter Dobson Dobson

6. 6 Observation data submitted to the WOUD from the WOUDC archived data (2013) (2013) Global GAW station Walinguan, CHINA Global GAW station Walinguan, CHINA New Brewer station Hanoi, VIETNAM New Brewer station Hanoi, VIETNAM Daily data of total Ozone

7. 7 Regional Dobson Calibration Center (JMA) http://ds.data.jma.go.jp/gmd/wdcgg/gaw.html

8. 8 Regional Dobson Calibration Center (JMA) JMA operates the RDCC under the WMO/GAW to contribute to improving the quality of ozone observations in RA-II. JMA operates the RDCC under the WMO/GAW to contribute to improving the quality of ozone observations in RA-II. The Regional Standard Dobson instrument (D116) is calibrated against the World Standard instrument (D083) every three years. It was calibrated in 2013 at Boulder, Colorado, USA. The Regional Standard Dobson instrument (D116) is calibrated against the World Standard instrument (D083) every three years. It was calibrated in 2013 at Boulder, Colorado, USA. RDCC-Asia plans the next regional Dobson intercomparison in 2015. RDCC-Asia plans the next regional Dobson intercomparison in 2015.

9. 9 Regional Intercomparison for Asia Year Reference Instrument Instruments Involved Participating Country 1996D116 D052, D075, D090, D100, D112, D124, B090 China, India, Korea, Malaysia, Pakistan, Philippines, Thailand 2003D116 D003, D075 China 2004D116D124Korea 2006D116 D052, D090, D100, D109, D112 Philippine, Thailand, Pakistan, Iran, India 2011D116 D003, D075 China Regional Standard Dobson instrument

10. 10 Summary of RA-II (Asia) According to national retorts from RA-II countries, monitoring network of ozone observations are systematically operated. It is noted that Vietnam has replaced the instrument by means of Brewer in 2011. According to national retorts from RA-II countries, monitoring network of ozone observations are systematically operated. It is noted that Vietnam has replaced the instrument by means of Brewer in 2011. Submission of observation data to the WOUDC should be encouraged. Submission of observation data to the WOUDC should be encouraged. The RDCC for Asia plans the next intercomparison in 2015. The RDCC for Asia plans the next intercomparison in 2015. Some countries need financial and technical support to improve or start ozone observation. Some countries need financial and technical support to improve or start ozone observation.