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Tutuila, American Samoa [SMO]

Location

  • Country: American Samoa Country Flag
  • Latitude: 14.2474° South
  • Longitude: 170.5644° West
  • Elevation: 42.00 masl
  • Time Zone: Local Standard Time + 11.0 hour(s) = UTC

Contact

  • Address: NOAA Samoa Observatory
    P.O. Box 2568
    Pago Pago, Cape Matatula, 96799, American Samoa
  • Phone: 684-258-2848
  • Fax:

Data

Cooperating Agencies

The Samoa Observatory is located on the northeastern tip of Tutuila island, American Samoa, on a ridge overlooking the South Pacific Ocean. Established in 1974 on a 26.7 acre site, the observatory is one of four GMD Baseline Observatories. Cape Matatula is approx. 1 km from the village of Tula. Prevailing winds are marine. Since its construction, the Samoa Observatory has survived two major hurricanes with only minor damage. Two staff operate the year-round facility commuting to work. This Observatory has the distinction of obtaining 30% of its daytime power from solar panels.

GML Projects at Tutuila

Carbon Cycle Surface Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 1972-01-15 Ongoing
Methane CH4 1983-04-23 Ongoing
Carbon Monoxide CO 1988-09-22 Ongoing
Molecular Hydrogen H2 1989-01-05 Ongoing
Nitrous Oxide N2O 1997-05-07 Ongoing
Sulfur Hexafluoride SF6 1997-05-07 Ongoing
Sulfur Hexafluoride SF6 2023-02-03 Ongoing
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 1990-01-04 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 1990-01-04 Ongoing
Carbon-13/Carbon-12 in Methane d13C (CH4) 1998-01-06 Ongoing
D/H in Methane dD (CH4) 2005-03-28 Terminated - 2009-09-11
HFC-134a CH2FCF3 2023-02-03 Ongoing
HCFC-22 CHF2Cl 2023-02-03 Ongoing
CFC-12 CCl2F2 2023-02-03 Ongoing
Methyl Chloride CH3Cl 2023-02-03 Ongoing
Methyl Chloride CH3Cl 2005-05-12 Terminated - 2018-06-01
CFC-114 CFC-114 2023-02-03 Ongoing
HCFC-142b CH3CF2Cl 2023-02-03 Ongoing
Halon-1211 CBrClF2 2023-02-03 Ongoing
Methyl Bromide CH3Br 2023-02-03 Ongoing
CFC-11 CCl3F (ion 103) 2023-02-03 Ongoing
HCFC-141b CH3CCl2F 2023-02-03 Ongoing
Methyl Iodide CH3I 2023-02-03 Ongoing
CFC-113 CCl2FCClF2 2023-02-03 Ongoing
Dichloromethane CH2Cl2 2023-02-03 Ongoing
Chloroform CHCl3 2023-02-03 Ongoing
Methyl Chloroform (97) CH3CCl3 2023-02-03 Ongoing
Carbon Tetrachloride CCl4 2023-02-03 Ongoing
Methelyne Bromide CH2Br2 2023-02-03 Ongoing
Perchloroethylene (PCE) C2Cl4 2023-02-03 Ongoing
Bromoform CHBr3 2023-02-03 Ongoing
Benzene C6H6 2023-02-03 Ongoing
Benzene C6H6 2007-01-16 Terminated - 2018-06-01
Carbonyl Sulfide COS 2023-02-03 Ongoing
HCFC-21 CHCl2F 2023-02-03 Ongoing
HFC-152a CH3CHF2 2023-02-03 Ongoing
HCFC-124 CHClFCF3 2023-02-03 Ongoing
Methylbenzene C7H8 2007-01-16 Terminated - 2018-06-01
Carbon Disulfide CS2 2023-02-03 Ongoing
Ethane C2H6 2005-05-12 Terminated - 2018-06-01
Ethane C2H6 2023-02-03 Ongoing
Ethylene C2H4 2005-05-12 Terminated - 2018-06-01
Ethylene C2H4 2023-02-03 Ongoing
Propane C3H8 2005-05-12 Terminated - 2018-06-01
Propane C3H8 2023-02-03 Ongoing
Propylene C3H6 2005-05-12 Terminated - 2018-06-01
Propylene C3H6 2023-02-03 Ongoing
Isobutane i-C4H10 2005-05-12 Terminated - 2018-06-01
Isobutane i-C4H10 2023-02-03 Ongoing
n-Butane n-C4H10 2023-02-03 Ongoing
n-Butane n-C4H10 2005-05-12 Terminated - 2018-06-01
isopentane i-C5H12 2023-02-03 Ongoing
isopentane i-C5H12 2005-05-12 Terminated - 2018-06-01
n-Pentane n-C5H12 2023-02-03 Ongoing
n-Pentane n-C5H12 2005-05-12 Terminated - 2018-06-01
n-Hexane n-C6H14 2023-02-03 Ongoing
n-Hexane n-C6H14 2005-05-12 Terminated - 2018-06-01
isoprene C5H8 2007-01-16 Terminated - 2018-06-01
Halon-1301 CF3Br 2023-02-03 Ongoing
Halon-2402 CBrF2CBrF2 2023-02-03 Ongoing
HFC-143a CH3CF3 2023-02-03 Ongoing
HFC-227ea CF3CHFCF3 2023-02-03 Ongoing
HFC-365mfc CH3CF2CH2CF3 2023-02-03 Ongoing
CFC-115 CClF2CF3 2023-02-03 Ongoing
HFC-125 CHF2CF3 2023-02-03 Ongoing
CFC-13 CClF3 2023-02-03 Ongoing
HFC-23 CHF3 2023-02-03 Ongoing
PFC-218 C3F8 2023-02-03 Ongoing
Acetylene C2H2 2023-02-03 Ongoing
Acetylene C2H2 2007-05-25 Terminated - 2018-06-01
HFC-32 CH2F2 2023-02-03 Ongoing
HFC-134 CHF2CHF2 2023-02-03 Ongoing
Halon-1011 CH2BrCl 2023-02-03 Ongoing
PFC-14 CF4 2023-02-03 Ongoing
PFC-116 CF3CF3 2023-02-03 Ongoing
Trifluoroamine NF3 2023-02-03 Ongoing
Sulfuryl Fluoride SO2F2 2023-02-03 Ongoing
HFC-236fa CF3CH2CF3 2023-02-03 Ongoing
HCFC-133a CH2ClCF3 2023-02-03 Ongoing
CFC-112 CCl3CClF2 2023-02-03 Ongoing
Trichloroethylene (TCE) C2HCl3 2023-02-03 Ongoing
HFO-1234yf CH2=CFCF3 2023-02-03 Ongoing
HFC-1234zeE CHF=CHCF3 2023-02-03 Ongoing
ethylene dichloride (1,2 DCE) CH2ClCH2Cl 2023-02-03 Ongoing
HCFC-123 CHCl2CF3 2023-02-03 Ongoing
Morpholine C5F11NO 2023-02-03 Ongoing
Perfluorotriethylamine (PFTEA) (C2F5)3N 2023-02-03 Ongoing
Perfluorotripropylamine (PFTPA) (C3F7)3N 2023-02-03 Ongoing
HFC-245fa 2023-02-03 Ongoing

Carbon Cycle In Situ Observatory

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 1976-01-01 Ongoing

HATS Flask Sampling

Parameter Formula First Sample Date Status
HFC-134a CH2FCF3 1994-11-29 Ongoing
HCFC-22 CHF2Cl 1991-11-26 Ongoing
CFC-12 CCl2F2 2010-01-08 Ongoing
Methyl Chloride CH3Cl 1993-11-09 Ongoing
HCFC-142b CH3CF2Cl 1992-02-11 Ongoing
Halon-1211 CBrClF2 1991-12-30 Ongoing
Methyl Bromide CH3Br 1993-11-09 Ongoing
HCFC-141b CH3CCl2F 1993-01-14 Ongoing
CFC-113 CCl2FCClF2 1991-12-30 Ongoing
Dichloromethane CH2Cl2 1994-01-12 Ongoing
Perchloroethylene (PCE) C2Cl4 1993-12-15 Ongoing
Carbonyl Sulfide COS 2000-03-07 Ongoing
HFC-152a CH3CHF2 2000-08-09 Ongoing
Halon-2402 CBrF2CBrF2 1995-02-13 Ongoing
HFC-227ea CF3CHFCF3 2011-04-06 Ongoing
HFC-365mfc CH3CF2CH2CF3 2009-07-02 Ongoing
Methyl Chloroform CH3CCl3 1991-11-26 Ongoing
CFC-11 CCl3F 2010-01-08 Ongoing

HATS In Situ Observatory

Parameter Formula First Sample Date Status
Nitrous Oxide N2O 1998-12-08 Ongoing
Sulfur Hexafluoride SF6 1998-12-03 Ongoing
HCFC-22 CHF2Cl 1999-02-16 Ongoing
CFC-12 CCl2F2 1998-12-04 Ongoing
Methyl Chloride CH3Cl 1999-01-28 Ongoing
HCFC-142b CH3CF2Cl 1999-01-28 Ongoing
Halon-1211 CBrClF2 1999-03-02 Ongoing
CFC-113 CCl2FCClF2 1998-12-03 Ongoing
Carbon Tetrachloride CCl4 1998-12-04 Ongoing
Methyl Chloroform CH3CCl3 1998-12-08 Ongoing
CFC-11 CCl3F 1998-12-08 Ongoing

Aerosol Surface In-Situ

Parameter Formula First Sample Date Status
Light Scattering Coefficient σsp 1977-01-01 Terminated - 1991-01-01
Particle Number Concentration Nt 1977-01-01 Ongoing

Radiation In-Situ Observatory

Parameter Formula First Sample Date Status
Direct Normal 1976-02-01 Ongoing
Downwelling Shortwave 1976-02-01 Ongoing
Diffuse 1995-08-21 Ongoing
Downwelling Longwave 1999-08-06 Ongoing

Surface Ozone

Parameter Formula First Sample Date Status
Ozone O3 1975-12-14 Ongoing

Dobson Total Ozone

Parameter Formula First Sample Date Status
Ozone O3 1976-01-02 Ongoing

Ozonesonde

Meteorology

Parameter Formula First Sample Date Status
Wind Speed ws 1976-01-21 Ongoing
Wind Direction wd 1976-01-21 Ongoing
Temperature temp 1976-01-05 Ongoing
Ambient Pressure press 1976-01-09 Ongoing
Relative Humidity rh 1976-01-06 Ongoing