GMD Site Description: SMO
Tutuila, American Samoa [SMO]
CountryCountry Flag
American Samoa
Latitude:14.2474° South
Longitude:170.5644° West
Elevation: 42.00 masl
Time Zone: Local Time + 11 hour(s) = UTC
Contact Name: Mark Cunningham
Address: NOAA Samoa Observatory
P.O. Box 2568
Pago Pago, Cape Matatula, 96799, American Samoa
Phone:
Fax:

Cooperating Agencies
NOAA ESRL Global Monitoring Division

Atmospheric Transport
Most Recent Trajectory
Clustered summary of Trajectories

Photo Gallery


Description
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 the fourth of the ESRL/GMD Baseline Observatories. Since it's construction, the Samoa Observatory has survived two major hurricanes with only minor damage. A staff of 3 operates the year around facility commuting to work. This Observatory has the distinction of obtaining 30% of its daytime power from solar panels.
 

GMD Projects at Tutuila

Carbon Cycle Surface Flasks

Parameter Formula First Sample Date Most Recent Sample Date
Carbon Dioxide CO2 1973-08-27 2009-09-17
Methane CH4 1983-04-23 2009-09-17
Carbon Monoxide CO 1988-09-22 2009-09-17
Molecular Hydrogen H2 1989-03-17 2009-09-17
Nitrous Oxide N2O 1997-05-07 2009-09-17
Sulfur Hexafluoride SF6 1997-05-07 2009-09-17
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 1990-01-04 2009-09-17
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 1994-09-22 2009-09-17
Carbon-13/Carbon-12 in Methane d13C (CH4) 1998-01-06 2009-09-17
D/H in Methane dD (CH4) 2005-03-28 2009-04-09
Methyl Chloride CH3Cl 2006-01-19 2009-05-01
Benzene C6H6 2007-01-16 2009-05-01
toluene C7H8 2007-01-16 2009-05-01
ethane C2H6 2005-05-12 2009-05-01
ethene C2H4 2005-05-12 2009-05-01
propane C3H8 2005-05-12 2009-05-01
propene C3H6 2005-05-12 2009-05-01
i-butane i-C4H10 2005-05-12 2009-05-01
n-butane n-C4H10 2005-05-12 2009-05-01
i-pentane i-C5H12 2005-05-12 2009-05-01
n-pentane n-C5H12 2005-05-12 2009-05-01
n-hexane n-C6H14 2005-05-12 2009-05-01
wind speed 1992-07-06 2009-09-17
wind direction 1992-07-06 2009-09-17
ambient temperature 2004-08-10 2004-09-07
isoprene C5H8 2007-01-16 2009-05-01

Carbon Cycle In Situ Observatory

Parameter Formula First Sample Date Most Recent Sample Date
Carbon Dioxide CO2 1976-01-01 2009-10-28

HATS Flask Sampling

HATS In Situ Observatory

Parameter Formula First Sample Date Most Recent Sample Date
Nitrous Oxide N2O 1999-01-03 2009-04-19
Sulfur Hexafluoride SF6 1999-01-03 2009-07-15
HCFC-22 CHF2Cl 1999-05-28 2008-12-31
CFC-12 CCl2F2 1999-01-03 2009-04-05
Methyl Chloride CH3Cl 1999-01-29 2008-12-31
HCFC-142b CH3CF2Cl 1999-01-03 2009-06-23
Halon-1211 CBrClF2 1999-01-03 2009-04-21
CFC-11 (ion 101) CCl3F (ion 101) 1999-01-03 2009-04-05
CFC-113 CCl2FCClF2 1999-01-03 2009-04-05
carbon tetrachloride CCl4 1999-01-03 2009-04-21
Methyl Chloroform CH3CCl3 1999-01-03 2009-04-21

Aerosol Surface, Continuous Measurements

Continuous Radiation Measurements

Surface Ozone

Parameter Formula First Sample Date Most Recent Sample Date
Ozone O3 1975-12-14 2006-12-31

Dobson Total Ozone

Parameter Formula First Sample Date Most Recent Sample Date
Total Ozone O3 1975-12-18 2005-12-30

Ozonesonde

Trajectories

Lidar

Meteorology

Parameter Formula First Sample Date Most Recent Sample Date
wind speed 2 meters 2007-09-05 2009-08-20
Wind Direction 2 Meters 2007-09-05 2009-08-20
Wind Speed 10 Meters 2007-09-05 2009-08-20
Wind Direction 10 Meters 2007-09-05 2009-08-20
Wind Speed Top 2007-09-05 2009-08-20
Wind Direction Top 2007-09-05 2009-08-20
Barometric Pressure 2007-09-05 2009-08-20
Relative Humidity 2 Meters 2007-09-05 2009-08-20
Temperature 2 Meters 2007-09-05 2009-08-20
Temperature 10 Meters 2007-09-05 2009-08-20
temperature Top 2007-09-05 2009-08-20
Precipitation 2007-09-05 2009-08-20