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K-puszta - HMS
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| Category |
Air sampling observation |
| Sampling Type |
continuous |
| Sampling Height/Depth |
10 |
| Sampling and Analysis Frequency |
Continuous |
| Sampling Environment |
Rural |
| Measurement Method |
NDIR |
| Current status and history of Instruments |
June, 1981 - June, 1999: Siemens Ultramat 3 |
| Description of Instruments |
Siemens
Ultramat 3 |
| Time Zone |
Local time (UTC+1) |
| Data Period |
1981-01-01 - 1999-06-30 |
| Data Type |
hourly, daily, monthly |
| Parameter detail |
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| Other Descriptions for Sampling and Analyses |
Air samples are collected continuously through an air intake at 10 m above the ground. Concentration of CO2 is measured by a Siemens Ultramat 3 non-dispersive infrared (NDIR) analyzer. The air/standard gases to be analyzed is/are saturated by water vapor at the room temperature and cooled to 4°C. In this way the water content of the gas to be analyzed is stable and its influence on the measurement can be compensated.
Detection range 1981-1983 ; 304.5 - 404.5 ppm
1984-1999 ; 304.5 - approx. 460 ppm
Kohler's method for the compensation of the water vapour influence. |
| Scientific Aim |
Determination of the long-term trend in the atmospheric CO2 mixing ratio |
| Supporting Contributor(s) |
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| Last update |
2009-04-15 |
| Situation |
June, 1999 |
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This site is maintained by the Japan Meteorological Agency
in cooperation with the World Meteorological Organization
(Created : 2001/07/02 Modified : 2010/09/02)
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WMO World Data Centre for Greenhouse Gases
c/o Japan Meteorological Agency
1-3-4, Otemachi, Chiyoda-ku
Tokyo 100-8122, Japan
| Tel: |
+81-3-3287-3439 |
| Fax: |
+81-3-3211-4640 |
| E-mail: |
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WDCGG Data Submission and Dissemination Guide (PDF 1.2Mbyte)
WDCGG leaflet (PDF 2.7MByte, July 2008)