GMD Site Description: MLO
Mauna Loa, Hawaii, United States [MLO]
CountryCountry Flag
United States
Latitude:19.5362° North
Longitude:155.5763° West
Elevation: 3397.00 masl
Time Zone: Local Time + 10 hour(s) = UTC
Contact Name: John Barnes
Address: NOAA - Mauna Loa Observatory
1437 Kilauea Ave. #102
Hilo, Hawaii, 96720, United States
Phone:(808)933-6965
Fax:(808)933-6967

Cooperating Agencies
NOAA ESRL Global Monitoring Division

Atmospheric Transport
Most Recent Trajectory
Clustered summary of Trajectories

Photo Gallery


Description
Mauna Loa Observatory is located on the Island of Hawaii at an elevation of 3397 m on the northern flank of Mauna Loa volcano at 200 north. Established in 1957, Mauna Lao Observatory has grown to become the premier long-term atmospheric monitoring facility on earth and is the site where the ever-increasing concentrations of global atmospheric carbon dioxide were determined. The observatory consists of 10 buildings from which up to 250 different atmospheric parameters are measured by a complement of 12 NOAA/ESRL and other agency scientists and engineers.
 

GMD Projects at Mauna Loa, Hawaii

Carbon Cycle Surface Flasks

Parameter Formula First Sample Date Most Recent Sample Date
Carbon Dioxide CO2 1969-08-20 2009-10-13
Methane CH4 1983-05-06 2009-10-13
Carbon Monoxide CO 1989-07-07 2009-10-13
Molecular Hydrogen H2 1989-07-07 2009-10-13
Nitrous Oxide N2O 1997-05-09 2009-10-13
Sulfur Hexafluoride SF6 1997-05-09 2009-10-13
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 1990-01-12 2009-10-06
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 1990-01-12 2009-10-06
Carbon-13/Carbon-12 in Methane d13C (CH4) 1998-01-02 2009-09-30
D/H in Methane dD (CH4) 2005-04-06 2009-04-23
Methyl Chloride CH3Cl 2005-08-10 2009-04-16
Benzene C6H6 2007-01-10 2009-04-16
toluene C7H8 2007-01-10 2009-04-16
ethane C2H6 2005-08-10 2009-04-16
ethene C2H4 2005-08-10 2009-04-16
propane C3H8 2005-08-10 2009-04-16
propene C3H6 2005-08-10 2009-04-16
i-butane i-C4H10 2005-08-10 2009-04-16
n-butane n-C4H10 2005-08-10 2009-04-16
i-pentane i-C5H12 2005-10-12 2009-04-16
n-pentane n-C5H12 2005-08-10 2009-04-16
n-hexane n-C6H14 2005-08-10 2009-04-16
wind speed 1992-07-01 2009-10-20
wind direction 1992-07-01 2009-10-20
ambient temperature 1992-11-27 2004-09-22
isoprene C5H8 2007-01-10 2009-04-16

Carbon Cycle In Situ Observatory

Parameter Formula First Sample Date Most Recent Sample Date
Carbon Dioxide CO2 1974-05-17 2009-10-28
Methane CH4 1987-04-03 2009-10-28
Carbon Monoxide CO 1992-05-30 2009-05-17

HATS Flask Sampling

HATS In Situ Observatory

Parameter Formula First Sample Date Most Recent Sample Date
Nitrous Oxide N2O 1998-11-28 2009-04-17
Sulfur Hexafluoride SF6 1998-11-28 2009-07-15
HCFC-22 CHF2Cl 1998-11-28 2009-04-10
CFC-12 CCl2F2 1999-05-02 2009-04-10
Methyl Chloride CH3Cl 1999-04-23 2009-01-08
HCFC-142b CH3CF2Cl 1998-11-28 2009-04-10
Halon-1211 CBrClF2 1998-11-28 2009-04-10
CFC-11 (ion 101) CCl3F (ion 101) 1999-06-25 2009-04-10
CFC-113 CCl2FCClF2 1998-11-28 2009-04-10
carbon tetrachloride CCl4 1998-11-28 2009-04-10
Methyl Chloroform CH3CCl3 1998-11-28 2009-04-10

Aerosol Surface, Continuous Measurements

Ultraviolet Radiation

Surface Ozone

Parameter Formula First Sample Date Most Recent Sample Date
Ozone O3 1973-09-20 2007-12-31

Dobson Total Ozone

Parameter Formula First Sample Date Most Recent Sample Date
Total Ozone O3 1963-12-26 2005-12-30

Trajectories

Lidar

Meteorology

Parameter Formula First Sample Date Most Recent Sample Date
wind speed 2 meters 2008-01-01 2009-08-20
Wind Direction 2 Meters 2008-01-01 2009-08-20
Wind Speed 10 Meters 2008-01-01 2009-08-20
Wind Direction 10 Meters 2008-01-01 2009-08-20
Wind Speed Top 2008-01-01 2009-08-20
Wind Direction Top 2008-01-01 2009-08-20
Barometric Pressure 2008-01-01 2009-08-20
Relative Humidity 2 Meters 2008-01-01 2009-08-20
Temperature 2 Meters 2008-01-01 2009-08-20
Temperature 10 Meters 2008-01-01 2009-08-20
temperature Top 2008-01-01 2009-08-20
Precipitation 2008-01-01 2009-08-20

Dobson Umkehr Ozone