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GAW Report, 263. Report of the Fifth Methane Reference Gas Inter-comparison Experiment for Japan from 2018 to 2019
World Meteorological Organization (WMO) ; Japan Meteorological Agency (JMA); Teruo Kawasaki, Atsuya Kinoshita, Yousuke Sawa, Akihiko Murata, Shinji Morimoto, Shohei Murayama, Toshinobu Machida, Motoki Sasakawa, Kazuhiro Tsuboi - WMO, 2021The WCC-JMA organized six rounds of the CH4 reference gas inter-comparison experiments from 2001 to 2019 to quantify differences among CH4 standard scales implemented at each participating laboratory as well as to monitor the long-term stability of standard gases in Asia and the South-West Pacific. In the 5th round inter-comparison for Japan, two reference gas cylinders were circulated in turn to JMA, JAMSTEC, TU, AIST, NIES, MRI, and JMA from September 2018 to April 2019. The measurement results of JAMSTEC and WCC-JMA have shown a good agreement with differences of less than 0.4 ppb for two ...
WCDMP, 80. Assessment of the observed extreme conditions during late boreal winter 2011/2012
World Meteorological Organization (WMO) ; Japan Meteorological Agency (JMA); Deutscher Wetterdienst (DWD) - WMO, 2013Congress during its sixteenth session in 2011 welcomed the decision of the Commission for Climatology during its fifteenth session in 2010 for improving WMO Climate System Monitoring including related methodologies and dissemination of monitoring reports for timely information on extreme weather and climate events occurring on large scale and having high socioeconomic impacts. A brochure called "Assessment of the observed extreme conditions during the 2009/2010 boreal winter" was published by WMO in 2010 and is now followed by this supplement to the WMO annual statement on the status of the g ...
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JRA-25 Atlas : (Japanese 25-year Reanalysis)
JMA, 2008The Japan Meteorological Agency (JMA) and the Central Research Institute of Electric Power Industry (CRIEPI) jointly conducted the Japanese 25-year Reanalysis (JRA-25) project for five years from 2001. Quality-controlled observational data from past decades and the latest numerical assimilation and prediction technology were used to produce a long-term record of the state of the atmosphere. The reanalysis covers the 26-year period from 1979 to 2004, and provides consistent and high-quality data. The JRA-25 product is widely used for research on meteorology and climatology, as well as for opera ...
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