|Los Gatos Research (LGR)||N2O/CO Analyzer using cavity enhanced absorption||CO, H2O, N2O||Jeff Peischl|
|GC-MS||Gas Chromatography-Mass Spectrometry||Saturated, unsaturated, and oxygenated hydrocarbons, alkyl nitrates, other volatile organic compounds||Jessica Gilman|
|PTR-ToF-MS||Proton transfer reaction time of flight mass spectrometer||Volatile Organic Compounds (VOCs)||Matt Coggon/Carsten Warneke|
|NO_LIF||Laser induced fluorescence measurement of nitric oxide||NO||Drew Rollins|
|NOx Chemiluminescence||Thermo Scientific model 42i with custom blue light converter||NOx = NO + NO2||Steve Brown / Delphine Farmer (CSU)|
|O3 UV photometer||Thermo Scientific model 49c||O3||Steve Brown / Eric Williams|
|Picarro||Cavity ring-down spectroscopy||CO2, CH4||Jeff Peischl|
|AMS||Aerosol Mass Spectrometer||PM 1 composition||Ann Middlebrook|
|UHSAS||Ultra-High Sensitivity Aerosol Spectrometer||Aerosol concentration in the 0.07-1.0 µm diameter range||Ann Middlebrook|
|POPS||Printed Optical Particle Spectrometer||Total aerosol size distributions 0.14 - 2.5 µm (or micron)||Lizzy Asher / Troy Thornberry|
The CSL TOPAZ lidar measures ozone (O3) mixing ratio and aerosol backscatter vertical profiles from near the surface to 6-8 km above ground level (AGL) every 8 minutes. The lidar also measures the same parameters along a horizontal path over south-central Boulder. Currently, TOPAZ measurements are performed usually twice per week on clear or partly cloudy days, for several hours each. In addition, surface O3 and temperature, humidity, wind speed and direction, as well as barometric pressure are measured continuously from the TOPAZ truck.
TOPAZ and met station/O3 monitor data archives are available.
Continuous Scanning Doppler Lidar measurements are being made from the third floor of DSRC. These measurements provide estimates of mixed layer height and horizontal wind profiles every 15 minutes. Doppler lidar wind and mixing height observations provide information on transport patterns and the depth of the volume that O3 precursors are mixed into. In addition, spatially resolved, nearly horizontal, scanning data can be used to determine airmass trajectories for in-situ sensors.