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Cape Grim, Tasmania, Australia [CGO]


  • Country: Australia Country Flag
  • Latitude: 40.683° South
  • Longitude: 144.6900° East
  • Elevation: 94.00 masl
  • Time Zone: Local Standard Time + -10.0 hour(s) = UTC


Cooperating Agencies

  • CSIRO, Atmospheric Research
Cape Grim Observatory is an internationally reknown baseline station with many ongoing local and international cooperating programs. The site is located at the north-west corner of Tasmania, Australia and has predominant westerly winds that make it ideal for sampling of unpolluted air. The station is permanently staffed with about eight officers plus temporary staff, and has about 14 lead scientists for the local projects.

The Cape Grim website is at

GMD Projects at Cape Grim, Tasmania

Carbon Cycle Surface Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 1984-04-19 Ongoing
Methane CH4 1984-04-19 Ongoing
Carbon Monoxide CO 1990-11-16 Ongoing
Molecular Hydrogen H2 1990-11-16 Ongoing
Nitrous Oxide N2O 1996-01-29 Ongoing
Sulfur Hexafluoride SF6 1996-01-29 Ongoing
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 1991-06-14 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 1991-06-14 Ongoing
Carbon-13/Carbon-12 in Methane d13C (CH4) 1998-01-15 Ongoing
D/H in Methane dD (CH4) 2005-01-05 Terminated - 2009-07-27
Methyl Chloride CH3Cl 2004-12-16 Ongoing
Benzene C6H6 2006-09-15 Ongoing
toluene C7H8 2006-09-15 Ongoing
ethane C2H6 2004-12-16 Ongoing
ethene C2H4 2004-12-16 Ongoing
propane C3H8 2004-12-16 Ongoing
propene C3H6 2004-12-16 Ongoing
i-butane i-C4H10 2004-12-16 Ongoing
n-butane n-C4H10 2004-12-16 Ongoing
i-pentane i-C5H12 2004-12-16 Ongoing
n-pentane n-C5H12 2004-12-16 Ongoing
n-hexane n-C6H14 2004-12-16 Ongoing
isoprene C5H8 2006-09-15 Ongoing
Acetylene C2H2 2006-11-22 Ongoing

HATS Flask Sampling

Parameter Formula First Sample Date Status
HFC-134a CH2FCF3 1994-10-26 Ongoing
HCFC-22 CHF2Cl 1991-11-20 Ongoing
CFC-12 CCl2F2 2010-01-05 Ongoing
Methyl Chloride CH3Cl 1994-12-14 Ongoing
HCFC-142b CH3CF2Cl 1992-01-14 Ongoing
Halon-1211 CBrClF2 1991-11-29 Ongoing
methyl bromide CH3Br 1994-12-14 Ongoing
HCFC-141b CH3CCl2F 1992-12-14 Ongoing
CFC-113 CCl2FCClF2 1992-02-12 Ongoing
dichloromethane CH2Cl2 1995-02-09 Ongoing
tetrachloroethylene C2Cl4 1993-11-22 Ongoing
carbonyl sulfide COS 2000-02-23 Ongoing
HFC-152a CH3CHF2 2000-07-27 Ongoing
Halon 1301 CF3Br 2004-03-01 Ongoing
Halon 2402 CBrF2CBrF2 1995-02-09 Ongoing
HFC-143a CH3CF3 2007-01-30 Ongoing
HFC-227ea CF3CHFCF3 2011-06-08 Ongoing
HFC-365mfc CH3CF2CH2CF3 2009-08-03 Ongoing
HFC-125 CHF2CF3 2007-01-30 Ongoing
HFC-32 CH2F2 2009-03-26 Ongoing
Methyl Chloroform CH3CCl3 1991-11-20 Ongoing
CFC-11 CCl3F 2010-01-05 Ongoing

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