Platform: NASA DC-8 Payload
The NASA DC-8 instrument payload is chosen to characterize the atmospheric composition in urban and marine environments with more detailed in-situ measurements than any previous aircraft campaign. The payload will be capable of addressing all of the major science questions for AEROMMA. We propose to equip the NASA DC-8 aircraft with a complete set of gas phase, aerosol composition and optical properties, and radiation measurements. Most instruments will have a high enough sampling frequency to be able to do wavelet eddy covariance flux measurements to determine emissions and deposition of VOCs, NOx, CO, CO2, and CH4.
| Species Measured | Technique | PI | Institution |
|---|---|---|---|
| Gas Phase measurements | |||
| NO, NO2, NOy | Laser Induced Fluorescence (LIF-NOx) | Andrew Rollins | NOAA CSL |
| O3 | Chemiluminescence | Jeff Peischl Kristen Zuraski | NOAA CSL |
| HPMTF, PANs, HONO, OVOCs, ClNO2, organic nitrogen | Iodide ToF-CIMS (I- CIMS) | Patrick Veres | NOAA CSL |
| CO2 / CH4, N2O / CO / H2O | Cavity Enhanced Absorption | Jeff Peischl | NOAA CSL |
| SO2 | Laser Induced Fluorescence (LIF-SO2) | Andrew Rollins | NOAA CSL |
| ACOS | Cavity Enhanced Absorption | Andrew Rollins | NOAA CSL |
| NH3 | QC-TILDAS (QCLS NH3) | Ilana Pollack | CSU |
| CH3COCHO, CHOCHO, NO2, UV aerosol extinction | Cavity Enhanced Spectrometer (ACES) | Carrie Womack | NOAA CSL |
| Speciated hydrocarbons and OVOCs | H3O+ Proton-Transfer Reaction Time-of-Flight Mass Spectrometry (VOCUS-PTR-MS) | Carsten Warneke | NOAA CSL |
| C2-C10 Alkanes, C2-C4 Alkenes, C6-C9 Aromatics, C1-C5 Alkylnitrates, etc. | Integrated Whole Air Sampling (iWAS) | Jessica Gilman | NOAA CSL |
| Formaldehyde (HCHO) | Laser Induced Fluorescence (ISAF) | Jennifer Kaiser | Georgia Tech |
| Highly Oxygenated VOCs | NH4+ VOCUS ToF-CIMS (NH4+CIMS) | John Liggio | ECCC Canada |
| OH reactivity | Direct OH loss rate by LP–LIF (OHR) | Hendrik Fuchs | FZ Juelich |
| H2O2, organic peroxides, organic acids, isoprene oxidation products, etc. | CalTech-CIMS (CT-CIMS) | Paul Wennberg | CalTech |
| Aerosol measurements (physical/optical/chemical) | |||
| Bulk aerosol composition, HNO3 | Filter sampling and mist chamber (PiLS-IC) | Amy Sullivan | CSU |
| BrC | Spectro-photometer (BrC PiLS) | Amy Sullivan Rodney Weber | CSU Georgia Tech |
| Aerosol absorption and extinction at multiple wavelengths and RH | Cavity ringdown extinction and photoacoustic absorption spectrometers (AOP) | Charles Brock | NOAA CSL |
| Aerosol scattering phase function at UV and visible (blue) wavelengths | Laser Imaging Nephelometer (Li-Neph) | Dan Murphy Adam Ahern | NOAA CSL |
| Aerosol number density, size distribution, and physical properties, CCN | Particle counters, nephelometers, etc. (UHSAS, CMASS, NMASS, CCN) (AMP) | Charles Brock, Rich Moore | NOAA CSL, NASA LaRC |
| BC concentration, size, mixing state | Humidified Dual Single Particle Soot Photometer (SP2) | Joshua Schwarz | NOAA CSL |
| Submicron aerosol composition | Aerosol mass spectrometer (HR-AMS) | Ann Middlebrook | NOAA CSL |
| Submicron aerosol composition | Vocus Inlet for Aerosols with NH4+ Long Time-of-Flight Chemical Ionization Mass Spectrometer detection (VIA-LToF-CIMS) | Carsten Warneke | NOAA CSL |
| Single particle composition | PALMS | Daniel Cziczo | Purdue |
| Radiation | |||
| Zenith/nadir solar actinic flux and photolysis frequencies | 4π-sr spectroradiometry (CAFS) | Sam Hall | NCAR ACOM |