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WDCGG Data Submission and Dissemination Guide (PDF 1.2Mbyte)

WDCGG leaflet (PDF 2.7MByte, July 2008)

Barrow - NOAA/GMD
Parameter Inventory Parameter Metadata Station Contributor
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
Observation Processing/Calibration Contact Person Reference Data/Quick Plot
Category Air sampling observation
Sampling Type continuous
Sampling Height/Depth
Sampling and Analysis Frequency Continuous
Sampling Environment
Measurement Method Gas Chromatography (FID)
Current status and history of Instruments GC-FID
Description of Instruments EG&G, Tulsa, Oklahoma
Time Zone
Data Period 1986-01-01 - 2008-12-31
Data Type hourly, daily, monthly
Parameter detail
Other Descriptions for Sampling and Analyses Sampling interval is 60 to 96 times per day.
Silica gel pre-column back flushed to vent (8 feet x 1/8 inch outer diameter). Molecular sieve analytical column (3.5 feet x 1/8 inch outer diameter). Oven, FID temperature about 80°C. Working standard are dry, natural air. See Dlugokencky et al. [1995] for the experimental details.
Scientific Aim In situ measurements are used to understand the methane budget over local, regional, and lager spatial scales by studying correlations with other observed species, trajectory clusters, or meteorological data. The quasi-continuous measurements are also a valuable quality control tool for the discrete sampling program.
Supporting Contributor(s)
Last update 2009-04-13
Situation ongoing

Category Parameter Country/Territory Contributor
  Updated in
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in cooperation with the World Meteorological Organization
(Created : 2001/07/02    Modified : 2010/09/02)
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