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Japan
Meteorological Agency (JMA)
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Annex 2: Results of Intercomparison
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| Laboratory and Location | Date of Measurement |
Cylinder No. CPB13002 | Cylinder No. CPB13003 | Scale | Measu- rement Info |
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|---|---|---|---|---|---|---|---|---|---|
| Concent- ration (ppb) |
SD (ppb) |
N | Concent- ration (ppb) |
SD (ppb) |
N | ||||
| 1. Intercomparison for Asia JMA: Japan Meteorological Agency CMA: China Meteorological Administration, CGAWBO: China Global Atmosphere Watch Baseline Observatory KMA: Korea Meteorological Administration, KGAWO: Korea Global Atmosphere Watch Observatory NOAA: National Oceanic and Atmospheric Administration, U.S.A. AES: Atmospheric Environment Service (presently Meteorological Service of Canada (MSC)) CMDL: Climate Monitoring and Diagnostics Laboratory (presently Global Monitoring Division (NOAA/ESRL)), U.S.A. |
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| JMA Headquarters, Tokyo |
Apr. 24-25, 2001 | 1809.8 *, ** | 1.1 | 10 | 1960.1 *, ** | 0.9 | 10 | NOAA04 | |
| CMA CGAWBO at Mt. Waliguan |
Jul. 21-24, 2001 | 1822.9 | 11.7 | 99 | 1980.5 | 9.8 | 99 | AES | |
| KMA KGAWO at Anmyeon-do |
Sep. 3-5, 2001 | 1786.4 | 1.1 | 45 | 1935.7 | 1.4 | 45 | CMDL | |
| JMA Headquarters, Tokyo |
Nov. 5-6, 2001 | 1810.5 *, ** | 2.2 | 10 | 1960.5 *, ** | 1.0 | 10 | NOAA04 | |
| 2. Intercomparison for the South-West Pacific CSIRO: Commonwealth Scientific and Industrial Research Organisation NIWA: National Institute of Water & Atmospheric Research Ltd. NIST: National Institute of Standards and Technology, U.S.A. |
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| JMA Headquarters, Tokyo |
Apr. 15-16, 2002 | 1810.3 *, ** | 1.3 | 10 | 1959.8 *, ** | 1.1 | 10 | NOAA04 | |
| CSIRO Aspendale, Australia |
Mar. 2003 | 1787.38 | 2.0 | 67 | 1937.33 | 2.1 | 72 | CSIRO1994 | |
| NIWA Wellington, New Zealand |
Jul. 2003 | 1817.84 | 1.79 | 10 | 1968.95 | 2.23 | 10 | NIST | |
| JMA Headquarters, Tokyo |
Dec. 15-16, 2003 | 1810.6 *, ** | 0.8 | 10 | 1959.3 *, ** | 1.7 | 10 | NOAA04 | |
| 3. Intercomparison for Japan TU: Tohoku University NIES: National Institute for Environmental Studies |
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| TU, Sendai | Sep. 28, 2004 | 1810.5 | 1.7 | 11 | 1961.2 | 1.6 | 11 | TU Gravimetric Scale | |
| NIES, Tsukuba | Dec. 20, 2004- Feb. 14, 2005 |
1812.1 | 1.4 | 84 | 1963.4 | 1.0 | 82 | NIES94 | |
| JMA Headquarters, Tokyo |
Mar. 3-8, 2005 | 1809.8 ** | 1.9 | 10 | 1960.3 ** | 1.7 | 10 | NOAA04 | |
| Laboratory and Location | Date of Measurement |
Cylinder No. CPB31289 | Cylinder No. CPB31288 | Scale | Measu- rement Info |
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| Concent- ration (ppb) |
SD (ppb) |
N | Concent- ration (ppb) |
SD (ppb) |
N | ||||
| 4. Intercomparison for Asia KRISS: Korea Research Institute of Standards and Science |
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| JMA Headquarters, Tokyo |
Jul. 6-7, 2005 | 1695.4 ** | 1.6 | 10 | 1874.3 ** | 1.8 | 10 | NOAA04 | |
| CMA CGAWBO at Mt. Waliguan |
Feb. 2006 | 1670.1 | 1.9 | 103 | 1845.4 | 2.3 | 167 | AES | |
| KMA KGAWO at Anmyeon-do |
Apr. 18-27, 2006 | 1695.8 | 1.5 | 70 | 1872.7 | 1.4 | 80 | KRISS | |
| KRISS, Taejeon | Jun. 26-30, 2006 | 1698.3 | 1.2 | 9 | 1877.1 | 0.9 | 8 | KRISS | |
| JMA Headquarters, Tokyo |
Aug. 21-22, 2006 | 1696.0 ** | 0.7 | 10 | 1875.0 ** | 1.1 | 9 | NOAA04 | |
| 5. Intercomparison for the South-West Pacific | |||||||||
| JMA Headquarters, Tokyo |
Dec. 25-26, 2006 | 1695.7 | 1.0 | 10 | 1875.5 | 1.2 | 10 | NOAA04 | |
| CSIRO Aspendale, Australia |
Jan. 31-Mar. 28, 2007 |
1695.0 | 0.8 | 68 | 1875.7 | 0.8 | 80 | NOAA04 | |
| NIWA Wellington, New Zealand |
Mar. 12, 2008 | 1692.54 | 1.88 | 10 | 1874.31 | 1.87 | 10 | NOAA04 | |
| JMA Headquarters, Tokyo |
Aug. 18-19, 2008 | 1696.2 | 1.6 | 10 | 1875.4 | 1.8 | 10 | NOAA04 | |
| Laboratory and Location | Date of Measurement |
Cylinder No. CPB13002 | Cylinder No. CPB13003 | Scale | Measu- rement Info |
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| Concent- ration (ppb) |
SD (ppb) |
N | Concent- ration (ppb) |
SD (ppb) |
N | ||||
| 6. Intercomparison for Asia CAMS: Chinese Academy of Meteorological Science |
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| JMA Headquarters, Tokyo |
May. 1, 2008 | 1664.4 | 1.2 | 10 | 1848.4 | 1.8 | 10 | NOAA04 | |
| KRISS, Taejeon | Sep. -Nov., 2008 | 1665.1 | 0.2 | 5 | 1851.2 | 0.2 | 5 | KRISS | |
| KMA KGAWO at Anmyeon-do |
Oct. -Nov., 2008 | 1665.6 | 1.2 | 12 | 1851.3 | 1.4 | 12 | KRISS | |
| CMA CGAWBO at Mt. Waliguan |
Apr. 3-5, 2009 | 1661.1 | 0.9 | 14 | 1847.0 | 0.8 | 14 | NOAA04 | |
| Apr. 13-14, 2009 | 1662.3 | 0.2 | 9 | 1847.2 | 0.3 | 9 | NOAA04 | ||
| Apr. 14-16, 2009 | 1659.3 | 5.2 | 10 | 1846.1 | 1.9 | 10 | NOAA04 | ||
| CMA CAMS, CMA, Beijing |
Apr. 28-29, 2009 | 1661.9 | 2.0 | 10 | 1847.5 | 0.6 | 10 | NOAA04 | |
| Apr. 29, 2009 | 1662.5 | 0.2 | 9 | 1847.3 | 0.1 | 9 | NOAA04 | ||
| Apr. 30, 2009 | 1662.2 | 1.6 | 12 | 1847.2 | 1.8 | 12 | NOAA04 | ||
| JMA Headquarters, Tokyo |
Jul. 1, 2009 | 1664.3 | 1.1 | 10 | 1846.8 | 1.7 | 10 | NOAA04 | |
| SD: Standard deviation; N: Number of measurements | ||
| Note: |
* means that JMA made a recalculation for the drift in JMA's ex-primary standards in November 2005. ** means that JMA made a recalculation for the adoption of the NOAA04 CH4 scale in October 2006. |
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| Information on Participants and their Contact |
| Participant (WEB Site) | Country | Information |
| Japan Meteorological Agency (JMA) | Japan | Contact |
| China Meteorological Administration (CMA) | China | Contact |
| Korea Meteorological Administration (KMA) | Rep. of Korea | Contact |
| Korea Research Institute of Standards and Science (KRISS) | Rep. of Korea | Contact |
| Commonwealth Scientific and Industrial Research Organisation (CSIRO) | Australia | Contact |
| National Institute of Water & Atmospheric Research Ltd. (NIWA) | New Zealand | Contact |
| Tohoku University (TU) | Japan | Contact |
| National Institute for Environmental Studies (NIES) | Japan | Contact |
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| GAW>GAW Tokyo>WCC |
| Last Updated: 2009.8.19 |
| E-mail: |