Boulder Atmospheric Observatory, Colorado, United States [BAO]
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Location
DataCooperating Agencies
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Description
The BAO research facility in Erie, Colorado is used for studying the planetary boundary layer and for testing and calibrating atmospheric sensors. Ongoing measurements include solar radiation and greenhouse gases. The centerpiece of the facility is a 300-m tower instrumented at multiple levels with slow-response temperature, relative humidity and wind sensors, a profiling instrument carriage, a variety of remote sensing systems, and a real-time processing and display capability.
GMD Projects at Boulder Atmospheric Observatory, Colorado
| Parameter | Formula | First Sample Date | Status | Carbon Dioxide | CO2 | 2007-08-16 | Ongoing | Methane | CH4 | 2007-08-16 | Ongoing | Carbon Monoxide | CO | 2007-08-16 | Ongoing | Molecular Hydrogen | H2 | 2007-08-16 | Ongoing | Nitrous Oxide | N2O | 2007-08-16 | Ongoing | Sulfur Hexafluoride | SF6 | 2007-08-16 | Ongoing | Carbon-13/Carbon-12 in Carbon Dioxide | d13C (CO2) | 2007-08-16 | Ongoing | Oxygen-18/Oxygen-16 in Carbon Dioxide | d18O (CO2) | 2007-08-16 | Ongoing | Carbon-14/Carbon in Carbon Dioxide | D14C (CO2) | 2009-06-27 | Ongoing | HFC-134a | CH2FCF3 | 2007-08-16 | Ongoing | HCFC-22 | CHF2Cl | 2007-08-16 | Ongoing | CFC-12 | CCl2F2 | 2007-08-16 | Ongoing | Methyl Chloride | CH3Cl | 2007-08-16 | Ongoing | CFC-114 and CFC-114a (combined) | CFC-114 and CFC-114a (combined) | 2007-08-16 | Ongoing | HCFC-142b | CH3CF2Cl | 2007-08-16 | Ongoing | Halon-1211 | CBrClF2 | 2007-08-16 | Ongoing | methyl bromide | CH3Br | 2007-08-16 | Ongoing | CFC-11 (ion 101) | CCl3F (ion 101) | 2007-08-16 | Ongoing | HCFC-141b | CH3CCl2F | 2008-02-16 | Ongoing | methyl iodide | CH3I | 2007-08-16 | Ongoing | CFC-113 | CCl2FCClF2 | 2007-08-16 | Ongoing | dichloromethane | CH2Cl2 | 2007-08-16 | Ongoing | chloroform | CHCl3 | 2007-08-16 | Ongoing | methyl chloroform (ion 97) | CH3CCl3 | 2007-08-16 | Ongoing | carbon tetrachloride | CCl4 | 2007-08-16 | Ongoing | dibromomethane | CH2Br2 | 2007-08-16 | Ongoing | tetrachloroethylene | C2Cl4 | 2007-08-16 | Ongoing | bromoform | CHBr3 | 2007-08-16 | Ongoing | Benzene | C6H6 | 2007-08-16 | Ongoing | carbonyl sulfide | COS | 2007-08-16 | Ongoing | HFC-152a | CH3CHF2 | 2007-08-16 | Ongoing | HCFC-124 | CHClFCF3 | 2007-08-16 | Ongoing | carbonyl disulfide | CS2 | 2007-08-16 | Ongoing | Sample Pressure | press | 2007-10-02 | Terminated - 2010-07-18 | propane | C3H8 | 2007-10-02 | Ongoing | n-butane | n-C4H10 | 2007-10-02 | Ongoing | i-pentane | i-C5H12 | 2007-10-02 | Ongoing | n-pentane | n-C5H12 | 2007-10-02 | Ongoing | Halon 1301 | CF3Br | 2007-10-02 | Ongoing | Halon 2402 | CBrF2CBrF2 | 2007-10-02 | Ongoing | HFC-143a | CH3CF3 | 2007-10-02 | Ongoing | HCFC-227ea | CF3CHFCF3 | 2007-10-02 | Ongoing | HFC-365mfc | CH3CF2CH2CF3 | 2007-10-02 | Ongoing | CFC-115 | CClF2CF3 | 2007-10-02 | Ongoing | HFC-125 | CHF2CF3 | 2007-10-02 | Ongoing | CFC-13 | CClF3 | 2007-10-02 | Ongoing | Chloroethane | CH3CH2Cl | 2007-10-02 | Ongoing | HFC-23 | CHF3 | 2007-10-02 | Ongoing | Perfluoropropane | C3F8 | 2008-01-22 | Ongoing | Acetylene | C2H2 | 2008-01-22 | Ongoing | HFC-32 | CH2F2 | 2009-04-03 | Ongoing | HFC-134 | CHF2CHF2 | 2009-04-03 | Ongoing |
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| Parameter | Formula | First Sample Date | Status | Carbon Dioxide | CO2 | 2008-07-24 | Terminated - 2008-07-24 | Methane | CH4 | 2008-07-24 | Terminated - 2008-07-24 | Carbon Monoxide | CO | 2008-07-24 | Terminated - 2008-07-24 | Molecular Hydrogen | H2 | 2008-07-24 | Terminated - 2008-07-24 | Nitrous Oxide | N2O | 2008-07-24 | Terminated - 2008-07-24 | Sulfur Hexafluoride | SF6 | 2008-07-24 | Terminated - 2008-07-24 | Carbon-13/Carbon-12 in Carbon Dioxide | d13C (CO2) | 2008-07-24 | Terminated - 2008-07-24 | Oxygen-18/Oxygen-16 in Carbon Dioxide | d18O (CO2) | 2008-07-24 | Terminated - 2008-07-24 | HFC-134a | CH2FCF3 | 2008-07-24 | Terminated - 2008-07-24 | HCFC-22 | CHF2Cl | 2008-07-24 | Terminated - 2008-07-24 | CFC-12 | CCl2F2 | 2008-07-24 | Terminated - 2008-07-24 | Methyl Chloride | CH3Cl | 2008-07-24 | Terminated - 2008-07-24 | CFC-114 and CFC-114a (combined) | CFC-114 and CFC-114a (combined) | 2008-07-24 | Terminated - 2008-07-24 | HCFC-142b | CH3CF2Cl | 2008-07-24 | Terminated - 2008-07-24 | Halon-1211 | CBrClF2 | 2008-07-24 | Terminated - 2008-07-24 | methyl bromide | CH3Br | 2008-07-24 | Terminated - 2008-07-24 | CFC-11 (ion 101) | CCl3F (ion 101) | 2008-07-24 | Terminated - 2008-07-24 | methyl iodide | CH3I | 2008-07-24 | Terminated - 2008-07-24 | CFC-113 | CCl2FCClF2 | 2008-07-24 | Terminated - 2008-07-24 | dichloromethane | CH2Cl2 | 2008-07-24 | Terminated - 2008-07-24 | chloroform | CHCl3 | 2008-07-24 | Terminated - 2008-07-24 | carbon tetrachloride | CCl4 | 2008-07-24 | Terminated - 2008-07-24 | dibromomethane | CH2Br2 | 2008-07-24 | Terminated - 2008-07-24 | tetrachloroethylene | C2Cl4 | 2008-07-24 | Terminated - 2008-07-24 | bromoform | CHBr3 | 2008-07-24 | Terminated - 2008-07-24 | Benzene | C6H6 | 2008-07-24 | Terminated - 2008-07-24 | carbonyl sulfide | COS | 2008-07-24 | Terminated - 2008-07-24 | HFC-152a | CH3CHF2 | 2008-07-24 | Terminated - 2008-07-24 | HCFC-124 | CHClFCF3 | 2008-07-24 | Terminated - 2008-07-24 | carbonyl disulfide | CS2 | 2008-07-24 | Terminated - 2008-07-24 | Sample Pressure | press | 2008-07-24 | Terminated - 2008-07-24 | propane | C3H8 | 2008-07-24 | Terminated - 2008-07-24 | n-butane | n-C4H10 | 2008-07-24 | Terminated - 2008-07-24 | i-pentane | i-C5H12 | 2008-07-24 | Terminated - 2008-07-24 | n-pentane | n-C5H12 | 2008-07-24 | Terminated - 2008-07-24 | Temperature | 2008-07-24 | Terminated - 2008-07-24 | Relative Humidity | rh | 2008-07-24 | Terminated - 2008-07-24 | Halon 1301 | CF3Br | 2008-07-24 | Terminated - 2008-07-24 | Halon 2402 | CBrF2CBrF2 | 2008-07-24 | Terminated - 2008-07-24 | HFC-143a | CH3CF3 | 2008-07-24 | Terminated - 2008-07-24 | HCFC-227ea | CF3CHFCF3 | 2008-07-24 | Terminated - 2008-07-24 | HFC-365mfc | CH3CF2CH2CF3 | 2008-07-24 | Terminated - 2008-07-24 | CFC-115 | CClF2CF3 | 2008-07-24 | Terminated - 2008-07-24 | HFC-125 | CHF2CF3 | 2008-07-24 | Terminated - 2008-07-24 | CFC-13 | CClF3 | 2008-07-24 | Terminated - 2008-07-24 | Chloroethane | CH3CH2Cl | 2008-07-24 | Terminated - 2008-07-24 | HFC-23 | CHF3 | 2008-07-24 | Terminated - 2008-07-24 | Perfluoropropane | C3F8 | 2008-07-24 | Terminated - 2008-07-24 | Acetylene | C2H2 | 2008-07-24 | Terminated - 2008-07-24 |
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Carbon Cycle In Situ Tall Tower
| Parameter | Formula | First Sample Date | Status | Carbon Dioxide | CO2 | 2007-05-05 | Ongoing | Methane | CH4 | 2012-05-03 | Ongoing | Carbon Monoxide | CO | 2007-05-05 | Ongoing |
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Baseline Surface Radiation Network
Surface Ozone
| Parameter | Formula | First Sample Date | Status | Ozone | O3 | 2008-07-10 | Ongoing |
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Ozone In Situ Tall Tower

Barrow, Alaska
Trinidad Head, California
Mauna Loa, Hawaii
American Samoa
South Pole
Summit, Greenland
Seminars
Global Monitoring Division Review

ESRL Physical Sciences Division