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WP-3D Payload

instrument layout for NOAA WP-3D Orion aircraft

Parameter Time Resolution Method Detection Limit / Range Principal Investigator
Ozone (O3) 10 seconds UV Absorption 1 ppbv D. Parrish, J. Holloway (NOAA AL)
Ozone (O3) < 1 second NO/O3 Chemiluminescence 0.2 ppbv D. Parrish, J. Holloway (NOAA AL)
Nitric Oxide (NO) 0.7 second NO/O3 Chemiluminescence 20 ppbv T. Ryerson, D. Nicks (NOAA AL)
Nitrogen Dioxide (NO2) 0.7 second Photolysis NO/O3 Chemiluminescence 100 ppbv T. Ryerson, D. Nicks (NOAA AL)
Total Nitrogen Oxides (NOy) 1 second Au Converter. NO/O3 Chemiluminescence 100 ppbv T. Ryerson, D. Nicks (NOAA AL)
Sulfur Dioxide (SO2) unknown Denuder Difference with SO/O3 Chemiluminescence unknown T. Ryerson, D. Nicks (NOAA AL)
Nitric Acid (HNO3) 1 second Chemical Ionization Mass Spectrometer (CIMS) 100 pptv A. Neuman, J. Nowak (NOAA AL)
In-situ VOCs depends on choice and # of species Proton Transfer Reaction Mass Spectrometer (PTRMS) depends on species J. de Gouw, C. Warneke (NOAA AL)
Canister VOCs < 1 min. at selected times Canister Sampling, GC/FID, GCMS 10 pptv E. Atlas, S. Donnelly, S. Schauffler (NCAR ACD)
Carbon Dioxide (CO2) second NDIR 60 ppbv D. Parrish, J. Holloway E. Dunlea (NOAA AL)
Sulfur Dioxide (SO2) 1 seconds UV Pulsed Fluorescence 1 ppbv D. Parrish, J. Holloway, E. Dunlea (NOAA AL)
Carbon Monoxide (CO) 1 second VUV Resonance Fluorescence 1 ppbv D. Parrish, J. Holloway, E. Dunlea (NOAA AL)
Hydroxyl Radical (OH) unknown CIMS unknown G. Huey, D. Tanner (Georgia Tech)
Sulfuric Acid (H2SO4) unknown CIMS 100 ppmv G. Huey, D. Tanner (Georgia Tech)
PAN, PPN, MPAN, PiBN, APAN every 3.5 min Dir. Injection., GC/ECD 5 pptv F. Flocke (NCAR ACD), J. Roberts (NOAA AL)
Aerosol Single Particle Compostion unquantified Particle Analysis by Laser Mass Spectrometry (PALMS) unknown D. Murphy, D. Thompson (NOAA AL)
Aerosol Bulk Ionic Compostion unquantified Particle Into Liquid Sampling (PILS) unknown R. Weber (Georgia Tech)
Small Aerosol Concentration 1 sec, usually integrated to 10 sec Aerosol Size Spectrometer 5 - 60 nm C. Brock (NOAA AL), C. Wilson (Univ. of Denver)
Aerosol Size Distribution 1 sec, usually integrated to 10 sec Focussed Cavity Aerosol Spectrometer 0.07 -1.2 µm C. Brock (NOAA AL), C. Wilson (Univ. of Denver)
Large Aerosol Concentration with LTI 1 sec, usually integrated to 10 sec White Light Scattering (Climet & LasAir) 0.5 - 10 µm C. Brock, D. Murphy (NOAA AL), C. Wilson (Univ. of Denver)
Photolytic Flux 1 second 280-400 nm spectrally resolved Radiometer, Zenith & Nadir unknown R. Jakoubek (NOAA AL)
Broadband UV Flux (jNO2) 300 - 380 nm 2 Hemispheric Radiometers unknown R. Jakoubek (NOAA AL)
Broadband Radiation 1 second Pyrgeometer 3.5 - 50 µm NOAA AOC
Broadband Radiation 1 second 3 Pyranometers with cutoff filters 0.28 -2.8 µm NOAA AOC
Water Vapor (H2O) < 1 second recorded at 40 Hz Lyman Alpha Absorption depends on gap setting NOAA AOC
Air Temp. ~ 1 second Platinum Resistor ± 0.5 °C NOAA AOC
Dewpoint/Frostpoint < 3 seconds Dew/Frostpoint Hygrometer -75 to +50 °C NOAA AOC
Altitude 1 second Barometric, Radar, GPS unknown NOAA AOC
Position 1 second GPS, INE unknown NOAA AOC