Japan Meteorological Agency (JMA)
Activities of the Regional Dobson Calibration Centre for Asia

     Dobson regional intercomparisons were held in 1996 at the JMA Aerological Observatory in Tsukuba, Japan, as part of the International Workshops on Ozone Observation in Asia and the Pacific Ocean (IWOAP) I and II. A total of seven instruments from RA-II countries were involved in the event.
     Seminars on ozone observation were also held as part of the IWOAP I and II at the JMA Headquarters in Tokyo, Japan. The seminars were attended by experts from a total of eleven countries in areas including Asia and the Pacific region.
     Since the IWOAP, Dobson regional intercomparisons have been held periodically as follows.
Regional Intercomparisons at Tsukuba
Year Reference Instrument Instruments Involved Participating Country Reports
1996 D116 D052, D075, D090, D100, D112, D124, B090 Philippines, China, Thailand, Pakistan, India, Korea, Malaysia WMO. Report of the international workshops on ozone observations in Asia and the Pacific region. WMO/GAW Project, Report No.118   
2003 D116 D003, D075 China (Kunming, Xianghe/Beijing) Shitamichi M., 2003. WMO/GAW Regional Intercomparison of Dobson Spectrophotometers for Asia (Tsukuba, Japan, 3-20 March 2003) PDF
[File size: 177KB]
2006 D116 D052, D090, D100, D109, D112 Philippines, Thailand, Pakistan, Iran, India Evans R. D., K. Miyagawa and K. Vanicek, 2006. Regional Intercomparison of Dobson Spectrophotometers for Asia, Aerological Observatory of the Japan Meteorological Agency in Tsukuba, Japan, 6-24 March 2006.(DIC-T2006) PDF
[File size: 59KB]
2016 D116 D075, D090, D100 China, Thailand, Pakistan G. McConville. R. Kajihara, K. Ueno and S. Shimizu, 2016. Regional Intercomparison of Dobson Spectrophotometers for Asia, Aerological Observatory of the Japan Meteorological Agency in Tsukuba, Japan, 7-25 March 2016.(DIC-T2016) PDF
[File size: 312KB]


Regional intercomparison at Tsukuba in 2006.

Automated Dobson system
     JMA's Aerological Observatory developed the automated Dobson system in 1994. And the advanced system began in routine operation at the GAW ozone observation network (Tsukuba, Seoul, Sapporo, and Naha) in June 2006.
     Technical guidance for automation of the Dobson system had made by the expert from JMA at Seoul (2006), Boulder (2009).

Miyagawa K., 2007. Upgrading of Automated Dobson Spectrophotometer Windows System. J. of the Aerological Observatory (Japanese).

Last Updated: October 22, 2018
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