World Data Centre for Greenhouse Gases (WDCGG)

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Parameter Inventory

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¹³CH₄ flask	¹³CO₂^* flask	C¹⁸O₂^* flask	C₂Cl₄ flask	CBrClF₂ flask	CBrClF₂^* continuous	CBrF₃ flask	CCl₄ flask	CCl₄^* continuous	CFCs^* flask	CFCs^* continuous
CH₂Cl₂ flask	CH₃Br^* flask	CH₃CCl₃ flask	CH₃CCl₃^* continuous	CH₃Cl^* continuous	CH₄^** continuous	CH₄^{** *} flask	CO^* flask	CO₂^{** *} flask	CO₂^{** *} continuous	H₂^* flask
HCFCs^* flask	HCFCs^* continuous	HFCs^* flask	N₂O^{** *} flask	N₂O^{** *} continuous	O₃^* continuous	SF₆ flask	SF₆^* continuous

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Category	Air sampling observation
Sampling Type	flask
Sampling Height/Depth
Sampling and Analysis Frequency	Weekly
Sampling Environment
Measurement Method	Mass Spectrometry
Current status and history of Instruments	Either a Micromass Optima or Micromass Isoprime isotope-ratio Mass Spectrometer coupled to a custom built gas-chromatograph and combustion furnace.
Description of Instruments
Time Zone	UTC
Data Period	1998-01-03 - 1999-12-25
Data Type	event
Parameter detail
Other Descriptions for Sampling and Analyses	The document available at the address bellow should be referred for the details. ftp://ftp.cmdl.noaa.gov/ccg/ch4c13/flask/README_ch4c13.html
Scientific Aim
Supporting Contributor(s)
Last update	2006-03-23
Situation	ongoing

Category	Parameter	Country/Territory	Contributor

Updated in
the last 365 days

This site is maintained by the Japan Meteorological Agency
in cooperation with the World Meteorological Organization
(Created : 2001/07/02 Modified : 2010/09/02)

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
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