WP-3D Payload

Sta. FD

TDL H₂O

Tunable Diode Laser water vapor

water vapor using open-path fast-response tunable diode laser absorption spectrometer

Dana Naeher

NOAA/AOC

Sta. FD

LTI

Low Turbulence Inlet

decelerating inlet to provide sample air to aerosol instruments in fuselage

Chuck Brock

NOAA/ESRL

Sta. FD & B cab.

WLOPC

White-Light Optical Particle Counter

supermicron aerosol number and sizes; samples from LTI

Chuck Brock

NOAA/ESRL

Sta. 2 forward

CCN

Cloud Condensation Nucleus counter

particle number that serve as a core for new cloud water droplets; samples from LTI

Thanos Nenes

Georgia Tech

Sta. 2

CRD-AES

Cavity Ring Down-Aerosol Extinction Spectrometer

total dry aerosol light extinction and extinction as f(RH); samples from LTI

Nick Wagner

NOAA/ESRL

Sta. 2

PSAP

Particle Soot Absorption Photometer

total aerosol light absorption by filter darkening; samples from LTI

Dan Lack

NOAA/ESRL

Sta. 2

PAS

Photoacoustic Absorption Spectrometer

total aerosol light absorption by photoacoustics; samples from LTI

Dan Lack

NOAA/ESRL

Sta. 2

UHSAS

ultrahigh sensitivity aerosol size spectrometer

counts and sizes 0.07-1.0 μm aerosol particles; samples from LTI

Chuck Brock

NOAA/ESRL

Sta. 3

SP2

single-particle soot photometer

soot particles number, size, and coating

Joshua Schwarz

NOAA/ESRL

Sta. 3

AMS

Aerosol Mass Spectrometer

Size resolved chemical composition of aerosol particles; samples from LTI

Ann Middlebrook

NOAA/ESRL

Sta. C3X

NO/NO₂/NOy/O₃

nitrogen oxides and ozone

chemiluminescence detection with photolytic or catalytic conversion

Ilana Pollack, Tom Ryerson

NOAA/ESRL

Sta. 4

PAN CIMS

PeroxyAcyl Nitrate Chemical Ionization Mass Spectrometer

PANs using chemical ionization mass spectrometry with I^- as reagent ion

Jim Roberts

NOAA/ESRL

Sta. 5

j-values

Filter Radiometers

j_NO2 and j_O3 using filter radiometers

Gerd Hübler

NOAA/ESRL

Sta. 5

SO₂

sulfur dioxide

SO₂ using pulsed UV fluorescence

John Holloway

NOAA/ESRL

Sta. 5

CH₄, CO₂

Picarro

CO₂ and methane with IR laser absorption in a high-finesse cavity

Jeff Peischl, Tom Ryerson

NOAA/ESRL

Sta. 6a

acid CIMS

acid Chemical Ionization Mass Spectrometer

organic and inorganic acids using chemical ionization mass spectrometry with acetate as reagent ion

Joel Thornton

University of Washington

Sta. 6b

ACES

Airborne Cavity Enhanced Spectrometer

Glyoxal using Cavity Enhanced Absorption Spectroscopy

Kyung-Eun Min, Bill Dubé

NOAA/ESRL

Sta. 7

HNO₃ CIMS

nitric acid Chemical Ionization Mass Spectrometer

nitric acid using chemical ionization mass spectrometery with SiF_5- as reagent ion

Andy Neuman

NOAA/ESRL

Sta. 7

NH₃ CIMS

Ammonia Chemical Ionization Mass Spectrometer

Ammonia using chemical ionization mass spectrometry with the protonated acetone dimer as reagent ion

John Nowak

NOAA/ESRL

Dual passenger

CARDS

cavity ringdown absorption spectrometer

NO₃/N₂O₅ in laser absorption in high-finesse cavities

Peter Edwards, Bill Dubé

NOAA/ESRL

Sta. 8

PTRMS

proton transfer reaction mass spectrometer

various VOCs using chemical ionization mass spectrometer using NO+ or H₃O+ as reagent ion

Martin Graus, Carsten Warneke

NOAA/ESRL

Sta. 8

HCHO

Laser Induced Fluorescence

formaldehyde (HCHO)

Tom Hanisco, Frank Keutsch

NASA GSFC University of Madison

AMPS pod

NMASS

Nucleation Mode Aerosol Size Spectrometer

0.004-0.07 nm aerosol particles number and size

Chuck Brock

NOAA/ESRL

AMPS pod

iWAS2

improved Whole Air Sampler With immediate Analysis System

hydrocarbons, alkyl nitrates and halocarbons using canister samples for immediate GC-MS analysis

Jessica Gilman, Brian Lerner

NOAA/ESRL

CO pod

CO

carbon monoxide

CO using vacuum UV resonance fluorescence

John Holloway

NOAA/ESRL

LWS 485

cloud probes

Droplet Measurement Technologies cloud probes

cloud droplet physical properties using optical DMT probes

Chuck Brock, Dana Naeher

NOAA/ESRL, NOAA/AOC