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; U. 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; U. 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; U. 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

Refer to the complete aircraft instrumention list for all NOAA-AOC WP-3D (N42RF) standard measurement specifications.

NOAA's Atmospheric Research Campaign
Combining Climate Change and Air Quality Research

NOAA Research Earth System Research Laboratory Chemical Sciences Division
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