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GMD Site Description: ASC


  • Country: United Kingdom Country Flag
  • Latitude: 7.9667° South
  • Longitude: 14.4° West
  • Elevation: 85.00 masl
  • Time Zone: Local Standard Time + 1.0 hour(s) = UTC


Cooperating Agencies

  • Met Office (United Kingdom)

GMD Projects at Ascension Island

Carbon Cycle Surface Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 1979-08-27 Ongoing
Methane CH4 1983-05-11 Ongoing
Carbon Monoxide CO 1989-02-02 Ongoing
Molecular Hydrogen H2 1989-02-02 Ongoing
Nitrous Oxide N2O 1997-08-04 Ongoing
Sulfur Hexafluoride SF6 1997-08-04 Ongoing
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 1990-01-02 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 1990-01-02 Ongoing
Carbon-13/Carbon-12 in Methane d13C (CH4) 2000-10-05 Ongoing
D/H in Methane dD (CH4) 2005-04-26 Terminated - 2010-03-09
Methyl Chloride CH3Cl 2005-04-21 Ongoing
Benzene C6H6 2006-12-19 Ongoing
toluene C7H8 2006-12-19 Ongoing
ethane C2H6 2005-04-21 Ongoing
ethene C2H4 2005-04-21 Ongoing
propane C3H8 2005-04-21 Ongoing
propene C3H6 2005-04-21 Ongoing
i-butane i-C4H10 2005-04-21 Ongoing
n-butane n-C4H10 2005-04-21 Ongoing
i-pentane i-C5H12 2005-04-21 Ongoing
n-pentane n-C5H12 2005-04-21 Ongoing
n-hexane n-C6H14 2005-04-21 Ongoing
isoprene C5H8 2006-12-19 Ongoing
Acetylene C2H2 2006-12-21 Ongoing