Regional Report on Ozone Observation

[ RA-II: Asia ]Hidehiko ISOBE

Ozone Monitoring CenterJapan 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

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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

National Reports of RA-II Countries[ Ozone observation ]

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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.

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National Reports of RA-II Countries[ Ozone observations ]

Country Total Ozone (ground-base)

China 9Iran 3

Japan 4Kyrgyzstan 1

Russia 42Turkmenistan 1

Vietnam 3

Table: the number of observation stations noted in each national report

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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 Filter Dobson

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Observation data submitted to the WOUD

from the WOUDC archived data

(2013)

Global GAW stationWalinguan, CHINA

New Brewer stationHanoi, VIETNAM

Daily data of total Ozone

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Regional Dobson Calibration Center (JMA)

http://ds.data.jma.go.jp/gmd/wdcgg/gaw.html

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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.

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.

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Regional Intercomparison for Asia

YearReference

InstrumentInstruments

Involved Participating Country

1996 D116D052, D075, D090, D100, D112, D124, B090

China, India, Korea, Malaysia, Pakistan, Philippines, Thailand

2003 D116 D003, D075 China2004 D116 D124 Korea

2006 D116 D052, D090, D100, D109, D112

Philippine, Thailand, Pakistan, Iran, India

2011 D116 D003, D075 China

Regional Standard Dobson instrument

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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.

Submission of observation data to the WOUDC should be encouraged.

The RDCC for Asia plans the next intercomparison in 2015.

Some countries need financial and technical support to improve or start ozone observation.