Location

  • Country: United States Country Flag
  • Latitude: 38.2650° North
  • Longitude: 121.4911° West
  • Elevation: 0.00 masl
  • Time Zone: Local Time + 8.0 hour(s) = UTC

Data

Cooperating Agencies



GMD Projects at Walnut Grove, California

Carbon Cycle Surface Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 2007-09-21 Ongoing
Methane CH4 2007-09-21 Ongoing
Carbon Monoxide CO 2007-09-21 Ongoing
Molecular Hydrogen H2 2007-09-21 Ongoing
Nitrous Oxide N2O 2007-09-21 Ongoing
Sulfur Hexafluoride SF6 2007-09-21 Ongoing
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 2007-09-21 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 2007-09-21 Ongoing
Carbon-13/Carbon-12 in Methane d13C (CH4) 2008-01-08 Terminated - 2009-02-24
Carbon-14/Carbon in Carbon Dioxide D14C (CO2) 2009-02-24 Ongoing
HFC-134a CH2FCF3 2007-09-21 Ongoing
HCFC-22 CHF2Cl 2007-09-21 Ongoing
CFC-12 CCl2F2 2007-09-21 Ongoing
Methyl Chloride CH3Cl 2007-09-21 Ongoing
CFC-114 and CFC-114a (combined) CFC-114 and CFC-114a (combined) 2007-09-21 Ongoing
HCFC-142b CH3CF2Cl 2007-09-21 Ongoing
Halon-1211 CBrClF2 2007-09-21 Ongoing
methyl bromide CH3Br 2007-09-21 Ongoing
CFC-11 (ion 101) CCl3F (ion 101) 2007-09-21 Ongoing
CFC-11 (ion 103) CCl3F (ion 103) 2010-08-27 Terminated - 2010-11-21
HCFC-141b CH3CCl2F 2007-09-21 Ongoing
methyl iodide CH3I 2007-09-21 Ongoing
CFC-113 CCl2FCClF2 2007-09-21 Ongoing
dichloromethane CH2Cl2 2007-09-21 Ongoing
chloroform CHCl3 2007-09-22 Ongoing
methyl chloroform (ion 97) CH3CCl3 2007-09-21 Ongoing
methyl chloroform (ion 99) CH3CCl3 2010-08-27 Terminated - 2010-11-21
carbon tetrachloride CCl4 2007-09-21 Ongoing
dibromomethane CH2Br2 2007-09-21 Ongoing
tetrachloroethylene C2Cl4 2007-09-21 Ongoing
bromoform CHBr3 2007-09-21 Ongoing
Benzene C6H6 2007-09-21 Ongoing
carbonyl sulfide COS 2007-09-21 Ongoing
HFC-152a CH3CHF2 2007-09-21 Ongoing
HCFC-124 CHClFCF3 2007-09-21 Ongoing
carbonyl disulfide CS2 2007-09-21 Ongoing
Sample Pressure press 2007-09-21 Terminated - 2010-07-10
propane C3H8 2007-09-21 Ongoing
n-butane n-C4H10 2007-09-21 Ongoing
i-pentane i-C5H12 2007-09-21 Ongoing
n-pentane n-C5H12 2007-09-21 Ongoing
Halon 1301 CF3Br 2007-09-21 Ongoing
Halon 2402 CBrF2CBrF2 2007-09-21 Ongoing
HFC-143a CH3CF3 2007-09-21 Ongoing
HCFC-227ea CF3CHFCF3 2007-09-21 Ongoing
HFC-365mfc CH3CF2CH2CF3 2007-09-21 Ongoing
CFC-115 CClF2CF3 2007-09-21 Ongoing
HFC-125 CHF2CF3 2007-09-21 Ongoing
CFC-13 CClF3 2007-09-21 Ongoing
Chloroethane CH3CH2Cl 2007-09-21 Ongoing
HFC-23 CHF3 2007-09-21 Ongoing
Perfluoropropane C3F8 2008-01-29 Ongoing
Acetylene C2H2 2008-01-29 Ongoing
HFC-32 CH2F2 2009-03-19 Ongoing
HFC-134 CHF2CHF2 2009-03-19 Ongoing

Carbon Cycle Airborne Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 2008-05-23 Terminated - 2009-03-08
Methane CH4 2008-05-23 Terminated - 2009-03-08
Carbon Monoxide CO 2008-05-23 Terminated - 2009-03-08
Molecular Hydrogen H2 2008-05-23 Terminated - 2009-03-08
Nitrous Oxide N2O 2008-05-23 Terminated - 2009-03-08
Sulfur Hexafluoride SF6 2008-05-23 Terminated - 2009-03-08
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 2008-06-18 Terminated - 2009-03-08
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 2008-06-18 Terminated - 2009-03-08
Carbon-14/Carbon in Carbon Dioxide D14C (CO2) 2009-02-25 Terminated - 2009-03-07
HFC-134a CH2FCF3 2008-05-23 Terminated - 2009-03-08
HCFC-22 CHF2Cl 2008-05-23 Terminated - 2009-03-08
CFC-12 CCl2F2 2008-05-23 Terminated - 2009-03-08
Methyl Chloride CH3Cl 2008-05-23 Terminated - 2009-03-08
CFC-114 and CFC-114a (combined) CFC-114 and CFC-114a (combined) 2008-05-23 Terminated - 2009-03-08
HCFC-142b CH3CF2Cl 2008-05-23 Terminated - 2009-03-08
Halon-1211 CBrClF2 2008-05-23 Terminated - 2009-03-08
methyl bromide CH3Br 2008-05-23 Terminated - 2009-03-08
CFC-11 (ion 101) CCl3F (ion 101) 2008-05-23 Terminated - 2009-03-08
HCFC-141b CH3CCl2F 2009-03-06 Terminated - 2009-03-06
methyl iodide CH3I 2008-05-23 Terminated - 2009-03-08
CFC-113 CCl2FCClF2 2008-05-23 Terminated - 2009-03-08
dichloromethane CH2Cl2 2008-05-23 Terminated - 2009-03-08
chloroform CHCl3 2008-05-23 Terminated - 2009-03-07
methyl chloroform (ion 97) CH3CCl3 2008-06-24 Terminated - 2009-03-06
carbon tetrachloride CCl4 2008-05-23 Terminated - 2009-03-08
dibromomethane CH2Br2 2008-05-23 Terminated - 2009-03-08
tetrachloroethylene C2Cl4 2008-05-23 Terminated - 2009-03-08
bromoform CHBr3 2008-05-23 Terminated - 2009-03-08
Benzene C6H6 2008-05-23 Terminated - 2009-03-08
carbonyl sulfide COS 2008-05-23 Terminated - 2009-03-08
HFC-152a CH3CHF2 2008-05-23 Terminated - 2009-03-08
HCFC-124 CHClFCF3 2008-05-23 Terminated - 2009-03-08
carbonyl disulfide CS2 2008-05-23 Terminated - 2009-03-08
Sample Pressure press 2008-05-23 Terminated - 2009-03-08
propane C3H8 2008-05-23 Terminated - 2009-03-08
n-butane n-C4H10 2008-05-23 Terminated - 2009-03-08
i-pentane i-C5H12 2008-05-23 Terminated - 2009-03-08
n-pentane n-C5H12 2008-05-23 Terminated - 2009-03-08
Temperature 2008-05-23 Terminated - 2009-03-08
Ambient Pressure 2008-05-23 Terminated - 2009-03-08
Relative Humidity rh 2008-05-23 Terminated - 2009-03-08
Halon 1301 CF3Br 2008-05-23 Terminated - 2009-03-08
Halon 2402 CBrF2CBrF2 2008-05-23 Terminated - 2009-03-08
HFC-143a CH3CF3 2008-05-23 Terminated - 2009-03-08
HCFC-227ea CF3CHFCF3 2008-05-23 Terminated - 2009-03-08
HFC-365mfc CH3CF2CH2CF3 2008-05-23 Terminated - 2009-03-08
CFC-115 CClF2CF3 2008-05-23 Terminated - 2009-03-08
HFC-125 CHF2CF3 2008-05-23 Terminated - 2009-03-08
CFC-13 CClF3 2008-05-23 Terminated - 2009-03-08
Chloroethane CH3CH2Cl 2008-05-23 Terminated - 2009-03-08
HFC-23 CHF3 2008-05-23 Terminated - 2009-03-08
Perfluoropropane C3F8 2008-05-23 Terminated - 2009-03-08
Acetylene C2H2 2008-05-23 Terminated - 2009-03-08

Carbon Cycle In Situ Tall Tower

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 2007-09-23 Ongoing
Methane CH4 2007-09-24 Ongoing
Carbon Monoxide CO 2007-09-23 Ongoing