WP-3D Instrumentation
The science instrument payload is geared to supply information on the project science questions by studying daytime photochemistry, nighttime chemistry, aerosol composition and size distribution, the driving radiation fluxes, transport and chemical conversion.
Download N43RF Instrument Layout (latest version May 20, 2006)
Parameter | Method |
---|---|
Ozone (O3) | NO/O3 Chemiluminescence |
Nitric Oxide (NO) | NO/O3 Chemiluminescence |
Nitrogen Dioxide (NO2) | Photolysis & NO/O3 Chemiluminescence |
Total reactive Nitrogen Oxides (NOy) | Au Converter & NO/O3 Chemiluminescence |
Carbon Dioxide (CO2) | Non-Dispersive InfraRed (NDIR) absorption |
In-situ volatile organic compounds (VOCs) | Proton Transfer Reaction Mass Spectrometer (PTRMS) |
Canister VOCs | Canister Sampling, GC/FID, GC-MS |
Ethylene | Laser Photoacoustic Spectroscopy (LPAS) |
Sulfur Dioxide (SO2) | UV Pulsed Fluorescence |
Carbon Monoxide (CO) | VUV Resonance Fluorescence |
Formaldehyde (CH2O) | Tunable Diode Laser Absorption Spectrometry |
PAN's (PAN, PPN) | Chemical Ionization Mass Spectrometer (CIMS) |
HNO3, NH3 | CIMS |
Hydroxyl Radical (OH), peroxy radicals (HO2+RO2) | CIMS |
NO3, N2O5 | Cavity Ring-Down Spectroscopy (CRDS) |
Sulfuric Acid (H2SO4) | CIMS |
Aerosol Bulk Ionic Composition | Particle Into Liquid Sampling (PILS) |
Aerosol Bulk Composition | Aerosol Mass Spectrometer (AMS) |
Total (dry), sub-μm (as f(RH)) aerosol extinction | Cavity ringdown spectrometer |
Dry sub-μm aerosol absorption (450, 550, 700 nm) | Particle soot absorption photometer (PSAP) |
Fraction of absorbing aerosols | Soot incandescence |
Cloud condensation nucleus (CCN) counter | CCN spectrometer |
Actinic Flux | Spectrally Resolved Radiometer, Zenith & Nadir |
Broadband Radiation | Pyrgeometer |
Water Vapor (H2O) | Tunable Diode Laser (TDL) absorption |
Air Temperature | Platinum RTD |
Dewpoint/Frostpoint | Dewpoint/frostpoint hygrometer |
Altitude | Barometric, Radar, GPS |