Tropospheric Chemistry: Instruments

Aircraft and Ground-based (including ship and mobile lab) Instruments

Instrument

Manufacturer

Species Measured

Technique

Contacts


Airborne Cavity Enhanced Spectrometer (ACES)

Custom

CHOCHO, HONO, NO2

Cavity enhanced absorption spectroscopy

Carrie Womack, Mike Robinson, Steve Brown

Reactive Oxides of Nitrogen (RONALD)

Custom

NO3, N2O5

Cavity ring-down spectroscopy

Steve Brown

Atmospheric Ring-down Nitrogen Oxide Laser Detector (ARNOLD)

Custom

NO3, N2O5, NO, NO2, O3

Cavity ring-down spectroscopy

Zach Decker, Steve Brown

Nitrogen Oxides by Cavity Ring Down (NOxCaRD)

Custom

NO, NO2, NOy, O3

Cavity ring-down spectroscopy

Carrie Womack, Zach Decker, Mike Robinson, Steve Brown

Brown Carbon - Particle-Into-Liquid Sampler (BrC-PILS)

Brechtel Instruments

Water-soluble organic aerosol absorption and concentration

Long-path liquid absorption cell

Rebecca Washenfelder

BroadBand Cavity Enhanced Spectrometer (BBCES)

Custom

Aerosol extinction and refractive index

Cavity enhanced spectroscopy

Rebecca Washenfelder, Carrie Womack

Whole Air Sampler (WAS)

Custom

Gas-phase atmospheric sample collection

Whole air sampling

Jessica Gilman

Gas Chromatography-Mass Spectrometry (GC-MS)

Custom

Saturated, unsaturated, and oxygenated hydrocarbons; alkyl nitrates; other volatiles

Gas chromatography with mass spectrometric detection

Jessica Gilman

Proton-Transfer Reaction high-resolution Time-of-Flight Mass Spectrometry (PTR-ToF-MS)

Modified Aerodyne

Saturated, unsaturated, and oxygenated hydrocarbons; other volatiles

Proton-transfer reaction high-resolution time-of-flight mass spectrometry

Georgios Gkatzelis, Matt Coggon, Carsten Warneke

PAN CIMS

Custom

Peroxyacyl nitrates (PANs)

Chemical ionization mass spectrometry

Patrick Veres

Iodide ion Time-of-Flight Chemical Ionization Mass Spectrometer (I- ToF CIMS)

Modified Tofwerk

Reactive nitrogen, halogen oxides, others

Chemical ionization mass spectrometry

Patrick Veres, Andy Neuman

Ethane TDL (C2H6)

Modified Aerodyne

C2H6

Tunable diode laser absorption spectroscopy

Jeff Peischl, Tom Ryerson

Carbon Dioxide and Methane (CO2/CH4)

Picarro

CO2, CH4

Wavelength-scanned cavity ring-down spectroscopy

Jeff Peischl, Tom Ryerson

Nitrous Oxide, Carbon Monoxide, and Water (N2O/CO/H2O)

Modified Los Gatos

N2O, CO, H2O

Off-axis integrated cavity output spectroscopy

Jeff Peischl, Tom Ryerson

Nitrogen Oxides and Ozone (NOyO3)

Custom

NO, NO2, NOy, O3

Chemiluminescence

Ilann Bourgeois, Chelsea Thompson, Tom Ryerson

CSD mobile laboratory

modified 15-passenger van

Location, winds, temperature (T), pressure (P), and up to 5 configurable instrumentation racks

various

Ken Aikin, Jeff Peischl