Atmospheric CH4 Concentrations from the CSIRO GASLAB Flask Sampling Network, in CDIAC Online Trends

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Abstract: [From the online documentation for CSIRO GASLAB CH4 data]:

The listed data have been obtained from flask air samples returned to
the CSIRO GASLAB for analysis. Typical sample storage times range from
days to weeks for some sites (e.g. Cape Grim) to as much as one year
for Macquarie Island and the Antarctic sites. Experiments carried out
to test for any change in sample CH4 mixing ratio during ... View entire text
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Description: Access to documentation and CH4 data for Alert, NWT
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Caption:  CSIRO Monthly Mean Flask Data from Cape Grim, Australia
Description:  Sample CH4 concentration from Cape Grim, Australia

Geographic Coverage
Spatial coordinates   
  N: 82.45   S: 82.45   E: -62.52   W: -62.52
Min Altitude: 0 M Max Altitude: 6 M
  N: -19.28   S: -19.28   E: 147.05   W: 147.05
Min Altitude: 0 M Max Altitude: 2 M
  N: -41.68   S: -41.68   E: 144.68   W: 144.68
Min Altitude: 0 M Max Altitude: 94 M
  N: 49.38   S: 49.38   E: -126.53   W: -126.53
Min Altitude: 0 M Max Altitude: 39 M
  N: -54.48   S: -54.48   E: 158.97   W: 158.97
Min Altitude: 0 M Max Altitude: 12 M
  N: 19.53   S: 19.53   E: -155.58   W: -155.58
Min Altitude: 0 M Max Altitude: 3397 M
  N: -67.62   S: -67.62   E: 62.87   W: 62.87
Min Altitude: 0 M Max Altitude: 32 M
  N: 60.17   S: 60.17   E: -1.17   W: -1.17
Min Altitude: 0 M Max Altitude: 30 M
  N: -89.98   S: -89.98   E: -24.8   W: -24.8
Min Altitude: 0 M Max Altitude: 2810 M

Data Set Citation
Dataset Originator/Creator: Steele, L. P., P. B. Krummel and R. L. Langenfelds
Dataset Title: Atmospheric CH4 concentrations from sites in the CSIRO Atmospheric Research GASLAB air sampling network
Dataset Series Name: Online Trends: A Compendium of Data on Global Change
Dataset Release Date: October 2002
Dataset Release Place: Oak Ridge, TN
Dataset Publisher: Carbon Dioxide Information Analysis Center (CDIAC)
Online Resource:
Temporal Coverage
Start Date: 1991-05-01
Stop Date: 2001-12-31
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Data Resolution
Latitude Resolution: point
Longitude Resolution: point
Temporal Resolution: monthly
Access Constraints None
Use Constraints None
Data Set Progress
Originating Center
Data Center
Carbon Dioxide Information Analysis Center, Environmental Sciences Division, Oak Ridge National Laboratory, U. S. Department of Energy Supplemental Info
Data Center URL:

Data Center Personnel
Fax: (865) 574-2232
Contact Address:
Carbon Dioxide Information Analysis Center (CDIAC)
Oak Ridge National Laboratory
P.O.. Box 2008
Province or State: TENNESSEE
Postal Code: 37831-6335
Country: USA
Distribution Media: online WWW, ftp
Distribution Format: ASCII
Fees: None
Phone: +61 3 9239 4578
Fax: +61 3 9239 4444
Email: paul.steele at
Contact Address:
CSIRO Marine and Atmospheric Research
Private Bag #1
City: Aspendale
Province or State: Victoria
Postal Code: 3195
Country: Australia
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Cooper, L.N., L.P. Steele, R.L. Langenfelds, D.A. Spencer and
M.P. Lucarelli. 1999. Atmospheric methane, carbon dioxide, hydrogen,
carbon monoxide and nitrous oxide from Cape Grim flask air samples
analysed by gas chromatography. Baseline Atmospheric Program
(Australia) 1996, edited by J.L. Gras, N. Derek, N.W. Tindale and
A.L. Dick, pp 98 - 102, Bureau of Meteorology and CSIRO Atmospheric
Research, Melbourne, Australia.
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2003-02-13
Last DIF Revision Date: 2015-08-25
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