GMD Site Description: SGP
Southern Great Plains, Oklahoma, United States [SGP]

Location

  • Country: United States Country Flag
  • Latitude: 36.6070° North
  • Longitude: 97.489° West
  • Elevation: 314.00 masl
  • Time Zone: Local Time + 6.0 hour(s) = UTC

Data

Cooperating Agencies


Description
The sampling site is located in the Southern Great Plains, within the US DOE Atmospheric Radiation Measurement Program testbed. The testbed is a 350 km x 350 km area studied and modeled by ARM. It is officially called the ARM-CART (cloud and radiation testbed). The local topography is very flat. Land use is mostly agriculture; main land cover is winter wheat and pasture. Scientists are using the information obtained from the SGP site to improve cloud and radiative models and parameterizations and, thereby, the performance of atmospheric general circulation models used for climate research. There are 30 scientists and technicians who collect and monitor data from the central facility instruments and from remote instruments throughout the site. The SGP is the largest and most extensive climate research field site in the world.

GMD Projects at Southern Great Plains, Oklahoma

Carbon Cycle Surface Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 2002-04-02 Ongoing
Carbon Dioxide CO2 2010-10-29 Terminated - 2010-11-08
Methane CH4 2002-04-02 Ongoing
Methane CH4 2010-10-29 Terminated - 2010-11-08
Carbon Monoxide CO 2010-10-29 Terminated - 2010-11-08
Carbon Monoxide CO 2002-04-02 Ongoing
Molecular Hydrogen H2 2010-10-29 Terminated - 2010-11-08
Molecular Hydrogen H2 2002-04-02 Ongoing
Nitrous Oxide N2O 2002-04-02 Ongoing
Nitrous Oxide N2O 2010-10-29 Terminated - 2010-11-08
Sulfur Hexafluoride SF6 2002-04-02 Ongoing
Sulfur Hexafluoride SF6 2010-10-29 Terminated - 2010-11-08
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 2002-04-02 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 2002-04-02 Ongoing
Methyl Chloride CH3Cl 2005-11-17 Ongoing
Benzene C6H6 2007-01-11 Ongoing
toluene C7H8 2007-01-18 Ongoing
ethane C2H6 2005-11-17 Ongoing
ethene C2H4 2005-11-17 Ongoing
propane C3H8 2005-11-17 Ongoing
propene C3H6 2005-11-17 Ongoing
i-butane i-C4H10 2005-11-17 Ongoing
n-butane n-C4H10 2005-11-17 Ongoing
i-pentane i-C5H12 2005-11-17 Ongoing
n-pentane n-C5H12 2005-11-17 Ongoing
n-hexane n-C6H14 2005-11-17 Ongoing
Wind Speed ws 2002-04-02 Ongoing
Wind Direction wd 2002-04-02 Ongoing
Temperature 2004-08-26 Terminated - 2004-09-09
Temperature 2010-10-29 Terminated - 2010-11-08
Ambient Pressure 2010-10-29 Terminated - 2010-11-08
Relative Humidity rh 2010-10-29 Terminated - 2010-11-08
isoprene C5H8 2007-01-11 Ongoing

Carbon Cycle Airborne Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 2002-09-17 Terminated - 2006-01-16
Carbon Dioxide CO2 1998-03-06 Ongoing
Methane CH4 2002-09-17 Terminated - 2006-01-16
Methane CH4 1998-03-06 Ongoing
Carbon Monoxide CO 2002-11-16 Terminated - 2006-01-16
Carbon Monoxide CO 1998-03-06 Ongoing
Molecular Hydrogen H2 2001-04-30 Ongoing
Molecular Hydrogen H2 2002-09-17 Terminated - 2006-01-16
Nitrous Oxide N2O 2001-04-30 Ongoing
Nitrous Oxide N2O 2002-09-17 Terminated - 2006-01-16
Sulfur Hexafluoride SF6 2001-04-30 Ongoing
Sulfur Hexafluoride SF6 2002-09-17 Terminated - 2006-01-16
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 2006-04-19 Ongoing
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 2002-09-17 Terminated - 2006-01-16
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 2006-04-19 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 2002-09-17 Terminated - 2006-01-16
HFC-134a CH2FCF3 2006-03-23 Ongoing
HCFC-22 CHF2Cl 2006-03-23 Ongoing
CFC-12 CCl2F2 2006-03-23 Ongoing
Methyl Chloride CH3Cl 2007-03-07 Terminated - 2007-03-07
Methyl Chloride CH3Cl 2006-03-23 Ongoing
CFC-114 and CFC-114a (combined) CFC-114 and CFC-114a (combined) 2006-03-23 Ongoing
HCFC-142b CH3CF2Cl 2006-03-23 Ongoing
Halon-1211 CBrClF2 2006-03-23 Ongoing
methyl bromide CH3Br 2006-03-23 Ongoing
CFC-11 (ion 101) CCl3F (ion 101) 2006-03-23 Ongoing
HCFC-141b CH3CCl2F 2006-03-23 Ongoing
methyl iodide CH3I 2006-03-23 Ongoing
CFC-113 CCl2FCClF2 2006-03-23 Ongoing
dichloromethane CH2Cl2 2006-03-23 Ongoing
chloroform CHCl3 2006-03-23 Ongoing
methyl chloroform (ion 97) CH3CCl3 2006-03-23 Ongoing
carbon tetrachloride CCl4 2006-03-23 Ongoing
dibromomethane CH2Br2 2006-03-23 Ongoing
tetrachloroethylene C2Cl4 2006-03-23 Ongoing
bromoform CHBr3 2006-03-23 Ongoing
Benzene C6H6 2006-03-23 Ongoing
Benzene C6H6 2007-03-07 Terminated - 2007-03-07
carbonyl sulfide COS 2006-03-23 Ongoing
HFC-152a CH3CHF2 2006-03-23 Ongoing
HCFC-124 CHClFCF3 2006-03-23 Ongoing
toluene C7H8 2007-12-12 Terminated - 2008-03-10
toluene C7H8 2007-03-07 Terminated - 2007-03-07
carbonyl disulfide CS2 2006-03-23 Ongoing
Sample Pressure press 2007-06-05 Terminated - 2010-07-18
ethane C2H6 2007-03-07 Terminated - 2007-03-07
ethene C2H4 2007-03-07 Terminated - 2007-03-07
propane C3H8 2007-03-07 Terminated - 2007-03-07
propane C3H8 2007-06-05 Ongoing
propene C3H6 2007-03-07 Terminated - 2007-03-07
i-butane i-C4H10 2007-03-07 Terminated - 2007-03-07
n-butane n-C4H10 2007-06-05 Ongoing
n-butane n-C4H10 2007-03-07 Terminated - 2007-03-07
i-pentane i-C5H12 2007-03-07 Terminated - 2007-03-07
i-pentane i-C5H12 2007-06-05 Ongoing
n-pentane n-C5H12 2007-03-07 Terminated - 2007-03-07
n-pentane n-C5H12 2007-06-05 Ongoing
n-hexane n-C6H14 2007-03-07 Terminated - 2007-03-07
Wind Speed ws 2002-09-17 Terminated - 2006-01-16
Wind Direction wd 2002-09-17 Terminated - 2006-01-16
Temperature 1998-03-02 Ongoing
Temperature 2004-08-14 Terminated - 2004-09-16
Ambient Pressure 2006-03-02 Ongoing
Relative Humidity rh 2001-04-27 Ongoing
isoprene C5H8 2007-03-07 Terminated - 2007-03-07
Halon 1301 CF3Br 2007-06-05 Ongoing
Halon 2402 CBrF2CBrF2 2007-06-05 Ongoing
HFC-143a CH3CF3 2007-06-05 Ongoing
HCFC-227ea CF3CHFCF3 2007-06-05 Ongoing
HFC-365mfc CH3CF2CH2CF3 2007-06-05 Ongoing
CFC-115 CClF2CF3 2007-06-05 Ongoing
HFC-125 CHF2CF3 2007-06-05 Ongoing
CFC-13 CClF3 2007-06-05 Ongoing
Chloroethane CH3CH2Cl 2007-06-05 Ongoing
HFC-23 CHF3 2007-06-05 Ongoing
Perfluoropropane C3F8 2008-02-18 Ongoing
Acetylene C2H2 2008-02-18 Ongoing
HFC-32 CH2F2 2009-04-07 Ongoing
HFC-134 CHF2CHF2 2009-04-07 Ongoing

Aerosol Surface In-Situ

Trajectories

Aerosol Airborne, Light Aircraft

Ozone Airborne