Location

Data

Cooperating Agencies

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

Carbon Cycle Surface Flasks

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 Terminated - 2013-06-08
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 2007-08-16 Terminated - 2013-06-08
Carbon-14/Carbon in Carbon Dioxide D14C (CO2) 2009-06-27 Terminated - 2011-12-25
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
Temperature temp 2014-11-25 Ongoing
Ambient Pressure press 2014-11-25 Ongoing
Relative Humidity rh 2014-11-25 Ongoing
Halon 1301 CF3Br 2007-10-02 Ongoing
Halon 2402 CBrF2CBrF2 2007-10-02 Ongoing
HFC-143a CH3CF3 2007-10-02 Ongoing
HFC-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

Carbon Cycle Airborne Flasks

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
Sample Pressure press 2008-07-24 Terminated - 2008-07-24
Temperature temp 2008-07-24 Terminated - 2008-07-24
Relative Humidity rh 2008-07-24 Terminated - 2008-07-24

Carbon Cycle In Situ Tall Tower

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 2007-05-05 Ongoing
Methane CH4 2012-05-04 Terminated - 2012-07-02
Carbon Monoxide CO 2007-05-05 Ongoing

Radiation In-Situ Observatory

Parameter Formula First Sample Date Status
Direct Beam 1989-09-05 Ongoing
Shortwave Global 1989-09-05 Ongoing
Diffuse 1995-02-21 Ongoing
Reflected Shortwave 1991-07-22 Ongoing
Downward Longwave 1989-09-05 Ongoing
Upward Longwave 1991-07-22 Ongoing

Baseline Surface Radiation Network

Surface Ozone

Parameter Formula First Sample Date Status
Ozone O3 2008-07-10 Ongoing

Ozone In Situ Tall Tower

Trace gases Airborne Flasks

Trace gases from GGGRN Flasks