Concept information
Preferred term
AGAGE
Definition
- The Advanced Global Atmospheric Gases Experiment (AGAGE) began in 1994, continuing a global network program to provide continuous measurements of methane (CH4); nitrous oxide (N2O) and Chloroflurocarbons CFCl3 (CFC-11), CF2Cl2 (CFC-12), and CF2ClCFC12 (CFC-113); methyl chloroform (CH3CCl3); chloroform (CHCl3), and carbon tetrachloride (CCl4). The network includes observation stations situated at different sites throughout the world: Cape Grim, Tasmania; Point Matatula, American Samoa; Ragged Point, Barbados; and Mace Head, Ireland; and Trinidad Head, California. Stations existed at Cape Meares, Oregon and Adrigole, Ireland. The AGAGE is the third phase of a monitoring network consisting of the Atmospheric Lifetime Experiment (ALE) and the Global Atmospheric Gases Experiment (GAGE). The AGAGE phase began in 1994. The ALE phase (1978-1986) utilized the Hewlett Packard HP5840 gas chromotographs; the GAGE phase utilized the HP5880 gas chromotagraphs; and the recently initiated Advanced Global Atmospheric Gases Experiment (AGAGE) uses a new fully automated system from Scripps Institution of Oceanography containing a custom-designed HP5890 and Carle Instruments gas chromotographic components. The ALE/GAGE/AGAGE daily and monthly data are available via anonymous FTP from the Carbon Dioxide Information Analysis Center (CDIAC) as follows: ftp cdiac.esd.ornl.gov cd pub/ale_gage_Agage/ or "http://cdiac.esd.ornl.gov/ftp/ale_gage_Agage/" The subdirectory, Agage, contain data from the AGAGE phase of the experiment. Further information can be obtained from: Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Building 1000, MS-6335 Oak Ridge, TN 37831-6335 Phone: 423-574-4791 FAX: 423-574-2232 Email: cdp@ornl.gov IDN_Node: USA/NASA (en)
Broader concept
- A - C (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/0f6028cf-a319-463b-868a-efef41a6c3d8
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