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Atmospheric
CH4
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CO
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CO2
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Carbon Dioxide
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Carbon Isotope
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Carbon Monoxide
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H2
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Hydrogen
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Methane
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analytical instrument code
data quality
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day
5
first analysis date
5
flask ID
hour
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isotope delta value
5
minute
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mixing ratio
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month
5
sample collection method code
5
sampling altitude
5
sampling latitude
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sampling longitude
5
sampling time
5
selection flag
5
station ID
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universal analysis number
5
year
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