Atmospheric CH4 Concentrations from the Commonwealth Scientific and Industrial Research Organization (CSIRO) GASLAB Flask Sampling Network (1984 - 2001)

• Main Authors: Steele, L., Krummel, P., Langenfelds, R.
• Format: Dataset
• Language: English
• Published: Environmental System Science Data Infrastructure for a Virtual Ecosystem; Carbon Dioxide Information Analysis Center (CDIAC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (USA) 2003
• Subjects: 54 ENVIRONMENTAL SCIENCES; Alert, NWT, Canada; Cape Ferguson, Australia; Cape Grim, Australia; Estevan Point, BC, Canada; Macquarie Island, Australia; Mauna Loa, Hawaii; Mawson, Antarctica; Shetland Islands, Scotland; South Pole, Antarctica; Antarctic; Canada; Ferguson; Grim; South Pole; The Antarctic; Antarc*; Antarctica; Macquarie Island; South pole
• Online Access: https://dx.doi.org/10.3334/cdiac/atg.031; https://www.osti.gov/servlets/purl/1389365/

The listed data were obtained from flask air samples returned to the CSIRO GASLAB for analysis. Typical sample storage times ranged 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 storage have shown no drift to within detection limits over test periods of several months to years (Cooper et al., 1999).