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GAW
102 record(s)
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Continuous surface ozone measurements conducted since 1996 within the Global Atmospheric Watch (GAW) programme of the World Meteorological Organization.
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The Condensation Particle Counter (TSI model 3772) detects airborne particles with diameter ranging from 10 nm (counting efficiency > 50%) to 3 µm at an aerosol flow rate of 1.0 l/min, over a concentration range from 0 to 10exp4 particles/cm3.
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Continuous Methane Concentration Measurements by using a customized Gas Chromotograph-FID (Agilent 6890N ).
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Sulfur Hexafluoride is measured by using a GC-ECD (Agilent 6890N); separation is performed on a double column system (precolumn/backflush and analytical column, both Hayesep Q), isothemrically. Each run is 15 minute long. Each ambient air sample is bracketed with calibration runs. The working standards are based on NOAA2006 scale.
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Continuous Methane Concentration Measurements by using a customized Gas Chromotograph-FID (Agilent 6890N ). CH4 data are archived at the WMO World Data Center for Greenhouse Gases (WDCGG), operated by the Japan Meteorological Agency in Tokyo (http://gaw.kishou.go.jp/wdcgg/). The World Data Center for Greenhouse Gases Data Submission and Dissemination Guide (GAW Report No. 174) should be referred to for details.
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Continuous Methane Concentration Measurements by using a customized Gas Chromotograph-FID (Agilent 6890N ). CH4 data are archived at the WMO World Data Center for Greenhouse Gases (WDCGG), operated by the Japan Meteorological Agency in Tokyo (http://gaw.kishou.go.jp/wdcgg/). The World Data Center for Greenhouse Gases Data Submission and Dissemination Guide (GAW Report No. 174) should be referred to for details.
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Continuous Methane Concentration Measurements by using a Gas Chromotograph-RGD. Contained fields:Carbon monoxide[ppbv] Time Interval: hourly Sampling Type continuous measurements started on Jan 2007 with a modified version of a commercial RGD2-Trace Analytical analyser and are still ongoing.
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Sulfur Hexafluoride is measured by using a GC-ECD (Agilent 6890N); separation is performed on a double column system (precolumn/backflush and analytical column, both Hayesep Q), isothemrically. Each run is 15 minute long. Each ambient air sample is bracketed with calibration runs. The working standards are based on NOAA2006 scale.
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Continuous Methane Concentration Measurements by using a Gas Chromotograph RGD.
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Continuous surface ozone measurements conducted since 1996 within the Global Atmospheric Watch (GAW) programme of the World Meteorological Organization.