Observation Sites

Select single site by:
or Select multiple sites by:
or by:

Reset

Yellow markers indicate discontinued sites

Southern Great Plains, Oklahoma, United States [SGP]

site location map

Location

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

Data

Cooperating Agencies

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.

GML 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 Ongoing
Methane CH4 2002-04-02 Ongoing
Methane CH4 2010-10-29 Ongoing
Carbon Monoxide CO 2002-04-02 Ongoing
Carbon Monoxide CO 2010-10-29 Ongoing
Molecular Hydrogen H2 2002-04-02 Ongoing
Molecular Hydrogen H2 2010-10-29 Ongoing
Nitrous Oxide N2O 2010-10-29 Ongoing
Nitrous Oxide N2O 2002-04-02 Ongoing
Sulfur Hexafluoride SF6 2010-10-29 Ongoing
Sulfur Hexafluoride SF6 2016-11-16 Ongoing
Sulfur Hexafluoride SF6 2002-04-02 Ongoing
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 2002-04-02 Ongoing
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 2016-11-16 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 2016-11-16 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 2002-04-02 Ongoing
Carbon-13/Carbon-12 in Methane d13C (CH4) 2022-10-27 Ongoing
Carbon-14/Carbon in Carbon Dioxide D14C (CO2) 2017-06-08 Terminated - 2020-11-19
Carbon-14/Carbon in Carbon Dioxide D14C (CO2) 2017-03-16 Terminated - 2020-09-10
HFC-134a CH2FCF3 2016-11-16 Ongoing
HCFC-22 CHF2Cl 2016-11-16 Ongoing
CFC-12 CCl2F2 2016-11-16 Ongoing
Methyl Chloride CH3Cl 2016-11-16 Ongoing
Methyl Chloride CH3Cl 2005-11-17 Terminated - 2018-06-21
CFC-114 CFC-114 2016-11-16 Ongoing
HCFC-142b CH3CF2Cl 2016-11-16 Ongoing
Halon-1211 CBrClF2 2016-11-16 Ongoing
Methyl Bromide CH3Br 2016-11-16 Ongoing
CFC-11 CCl3F (ion 103) 2016-11-16 Ongoing
HCFC-141b CH3CCl2F 2016-11-16 Ongoing
Methyl Iodide CH3I 2016-11-16 Ongoing
CFC-113 CCl2FCClF2 2016-11-16 Ongoing
Dichloromethane CH2Cl2 2016-11-16 Ongoing
Chloroform CHCl3 2016-11-16 Ongoing
Methyl Chloroform (97) CH3CCl3 2016-11-16 Ongoing
Carbon Tetrachloride CCl4 2016-11-16 Ongoing
Methylene Bromide CH2Br2 2016-11-16 Ongoing
Perchloroethylene (PCE) C2Cl4 2016-11-16 Ongoing
Bromoform CHBr3 2016-11-16 Ongoing
Benzene C6H6 2007-01-11 Terminated - 2018-06-21
Benzene C6H6 2016-11-16 Ongoing
Carbonyl Sulfide COS 2016-11-16 Ongoing
HCFC-21 CHCl2F 2016-11-16 Ongoing
HFC-152a CH3CHF2 2016-11-16 Ongoing
HCFC-124 CHClFCF3 2016-11-16 Ongoing
Methylbenzene C7H8 2016-11-16 Terminated - 2017-05-09
Methylbenzene C7H8 2007-01-11 Terminated - 2018-06-21
Carbon Disulfide CS2 2016-11-16 Ongoing
Ethane C2H6 2005-11-17 Terminated - 2018-06-21
Ethane C2H6 2016-11-16 Ongoing
Ethylene C2H4 2016-11-16 Ongoing
Ethylene C2H4 2005-11-17 Terminated - 2018-06-21
Propane C3H8 2016-11-16 Ongoing
Propane C3H8 2005-11-17 Terminated - 2018-06-21
Propylene C3H6 2005-11-17 Terminated - 2018-06-21
Propylene C3H6 2016-11-16 Ongoing
Isobutane i-C4H10 2016-11-16 Ongoing
Isobutane i-C4H10 2005-11-17 Terminated - 2018-06-21
n-Butane n-C4H10 2005-11-17 Terminated - 2018-06-21
n-Butane n-C4H10 2016-11-16 Ongoing
isopentane i-C5H12 2005-11-17 Terminated - 2018-06-21
isopentane i-C5H12 2016-11-16 Ongoing
n-Pentane n-C5H12 2016-11-16 Ongoing
n-Pentane n-C5H12 2005-11-17 Terminated - 2018-06-21
n-Hexane n-C6H14 2016-11-16 Ongoing
n-Hexane n-C6H14 2005-11-17 Terminated - 2018-06-21
Ambient Pressure press 2010-10-29 Ongoing
Relative Humidity rh 2010-10-29 Ongoing
isoprene C5H8 2007-01-11 Terminated - 2018-06-21
Halon-1301 CF3Br 2016-11-16 Ongoing
Halon-2402 CBrF2CBrF2 2016-11-16 Ongoing
HFC-143a CH3CF3 2016-11-16 Ongoing
HFC-227ea CF3CHFCF3 2016-11-16 Ongoing
HFC-365mfc CH3CF2CH2CF3 2016-11-16 Ongoing
CFC-115 CClF2CF3 2016-11-16 Ongoing
HFC-125 CHF2CF3 2016-11-16 Ongoing
CFC-13 CClF3 2016-11-16 Ongoing
HFC-23 CHF3 2016-11-16 Ongoing
PFC-218 C3F8 2016-11-16 Ongoing
Acetylene C2H2 2016-11-16 Ongoing
Acetylene C2H2 2007-11-08 Terminated - 2018-06-21
HFC-32 CH2F2 2016-11-16 Ongoing
HFC-134 CHF2CHF2 2016-11-16 Ongoing
Halon-1011 CH2BrCl 2016-11-16 Ongoing
PFC-14 CF4 2016-11-16 Ongoing
PFC-116 CF3CF3 2016-11-16 Ongoing
Trifluoroamine NF3 2016-11-16 Ongoing
Sulfuryl Fluoride SO2F2 2016-11-16 Ongoing
HFC-236fa CF3CH2CF3 2016-11-16 Ongoing
HCFC-133a CH2ClCF3 2016-11-16 Ongoing
CFC-112 CCl3CClF2 2016-11-16 Ongoing
Trichloroethylene (TCE) C2HCl3 2016-11-16 Ongoing
HFO-1234yf CH2=CFCF3 2016-11-16 Ongoing
HFO-1234zeE CHF=CHCF3 2016-11-16 Ongoing
ethylene dichloride (1,2 DCE) CH2ClCH2Cl 2017-11-30 Ongoing
HCFC-123 CHCl2CF3 2017-11-30 Ongoing
Morpholine C5F11NO 2017-11-30 Ongoing
Perfluorotriethylamine (PFTEA) (C2F5)3N 2017-11-30 Ongoing
Perfluorotripropylamine (PFTPA) (C3F7)3N 2017-11-30 Ongoing
HFC-245fa 2022-06-16 Ongoing

Carbon Cycle Airborne Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 2002-09-17 Terminated - 2006-01-16
Carbon Dioxide CO2 1998-03-02 Ongoing
Methane CH4 2002-09-17 Terminated - 2006-01-16
Methane CH4 1998-03-02 Ongoing
Carbon Monoxide CO 2002-09-17 Terminated - 2006-01-16
Carbon Monoxide CO 1998-03-02 Ongoing
Molecular Hydrogen H2 2002-09-17 Terminated - 2006-01-16
Molecular Hydrogen H2 2001-04-27 Ongoing
Nitrous Oxide N2O 2002-09-17 Terminated - 2006-01-16
Nitrous Oxide N2O 2001-04-27 Ongoing
Sulfur Hexafluoride SF6 2001-04-27 Ongoing
Sulfur Hexafluoride SF6 2014-08-28 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
Carbon-13/Carbon-12 in Methane d13C (CH4) 2015-06-25 Terminated - 2015-06-25
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 CFC-114 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 CCl3F (ion 101) 2006-03-23 Terminated - 2015-12-05
CFC-11 CCl3F (ion 103) 2010-06-10 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 (97) CH3CCl3 2006-03-23 Ongoing
Methyl Chloroform (99) CH3CCl3 2010-06-10 Terminated - 2013-04-25
Carbon Tetrachloride CCl4 2006-03-23 Ongoing
Methylene Bromide CH2Br2 2006-03-23 Ongoing
Perchloroethylene (PCE) 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
HCFC-21 CHCl2F 2015-10-09 Ongoing
HFC-152a CH3CHF2 2006-03-23 Ongoing
HCFC-124 CHClFCF3 2006-03-23 Ongoing
Methylbenzene C7H8 2007-03-07 Terminated - 2007-03-07
Methylbenzene C7H8 2007-06-05 Ongoing
Carbon Disulfide CS2 2006-03-23 Ongoing
Ethane C2H6 2014-08-28 Ongoing
Ethane C2H6 2007-03-07 Terminated - 2007-03-07
Ethylene C2H4 2014-08-28 Ongoing
Ethylene C2H4 2007-03-07 Terminated - 2007-03-07
Propane C3H8 2007-03-07 Terminated - 2007-03-07
Propane C3H8 2007-06-05 Ongoing
Propylene C3H6 2007-03-07 Terminated - 2007-03-07
Propylene C3H6 2014-08-28 Ongoing
Isobutane i-C4H10 2007-03-07 Terminated - 2007-03-07
Isobutane i-C4H10 2014-08-28 Ongoing
n-Butane n-C4H10 2007-06-05 Ongoing
n-Butane n-C4H10 2007-03-07 Terminated - 2007-03-07
isopentane i-C5H12 2007-03-07 Terminated - 2007-03-07
isopentane 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
n-Hexane n-C6H14 2014-08-28 Ongoing
Ambient Pressure press 2006-03-02 Terminated - 2013-05-22
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
HFC-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
Ethyl Chloride CH3CH2Cl 2007-06-05 Terminated - 2014-08-11
HFC-23 CHF3 2007-06-05 Ongoing
PFC-218 C3F8 2007-12-12 Ongoing
Acetylene C2H2 2007-12-12 Ongoing
HFC-32 CH2F2 2009-04-07 Ongoing
HFC-134 CHF2CHF2 2009-04-07 Ongoing
Halon-1011 CH2BrCl 2014-08-28 Ongoing
Methyl Chloroform (61) CH3CCl3 2014-01-06 Terminated - 2014-01-06
PFC-14 CF4 2014-08-28 Ongoing
PFC-116 CF3CF3 2014-08-28 Ongoing
Trifluoroamine NF3 2014-08-28 Ongoing
Sulfuryl Fluoride SO2F2 2014-08-28 Ongoing
HFC-236fa CF3CH2CF3 2014-08-28 Ongoing
HCFC-133a CH2ClCF3 2015-10-09 Ongoing
CFC-112 CCl3CClF2 2014-08-28 Ongoing
Trichloroethylene (TCE) C2HCl3 2014-08-28 Ongoing
HFO-1234yf CH2=CFCF3 2016-09-03 Ongoing
HFO-1234zeE CHF=CHCF3 2016-09-03 Ongoing
ethylene dichloride (1,2 DCE) CH2ClCH2Cl 2018-01-30 Ongoing
HCFC-123 CHCl2CF3 2018-01-30 Ongoing
Morpholine C5F11NO 2017-12-11 Ongoing
Perfluorotriethylamine (PFTEA) (C2F5)3N 2017-12-11 Ongoing
Perfluorotripropylamine (PFTPA) (C3F7)3N 2017-12-11 Ongoing
HFC-245fa 2022-06-27 Ongoing

Aerosol Mobile and Cooperative Platforms

Ozone Airborne

Trace gases from GGGRN Airborne Flasks