Measurements

 

The CARES field campaign seeks to collect a substantial series of both anthropogenic and biogenic aerosol data sets—profiling secondary organic aerosols formation, atmospheric black carbon mixing state evolution, and the optical and hygroscopic properties of fresh and aged carbonaceous aerosols—during routine flights by the G-1 over California’s Sacramento Valley.

Airborne Instruments: G-1 Payload

The following instruments may be mounted on the G-1 for the CARES campaign.

G-1 Payload

Category Measurement Instrument Sponsor
Aerosol Properties Aerosol Chemical Composition Time-Resolved Aerosol Collector (TRAC) EMSL
Aerosol Composition High Resolution Time of Flight Aerosol Mass Spectrometer (HR-TOF-AMS) PNNL
Aerosol Light Absorption Radiance Particle/Soot Absorption Photometer (PSAP) AAF
Aerosol Light Absorption and Scattering Photo-Acoustic Soot and Aerosol Sensor, Three Wavelength (PASS-3) LANL
Aerosol Light Scattering TSI 3563 Nephelometer AAF
Number Concentration (>10 nm) TSI-3010 Condensation Particle Counter (CPC) AAF
Number Concentration (>12 nm) TSI-3025 Ultra-fineCondensation Particle Counter (CPC) AAF
Particle Size Distribution (PSD): 0.030-0.110 µm Fast Integrated Mobility Spectrometer (FIMS) BNL
PSD: 0.055-1.0 µm Ultra-High Sensitivity Aerosol Spectrometer (UHSAS) Airborne AAF
PSD: .5-1550 µm Cloud, Aerosol, and Precipitation Probe (CAPS) BNL
Single Particle Composition and Size Aerosol Time-of-Flight Mass Spectrometry (ATOFMS) UCSD
Soot Mass Single Particle Soot Photometer (SP2) AAF
Water-Soluble Aerosol Chemical Composition Particle in Liquid auto Sampler (PILS) BMI
Atmospheric Chemistry/

Trace Gases

CO Resonance Limited VUV-Fluorescence BNL
Hydrocarbon Trace Gas Concentration Proton Transfer Reaction Mass Spectrometer (PTR-MS) PNNL
NO Reseach Grade Instruments BNL
NO2 Reseach Grade Instruments BNL
NOy Reseach Grade Instruments BNL
O3 Thermo Environmental Instruments Model 49-100 (TEI 49-100) BNL
SO2 Thermo Environmental Instruments Model 43S (TEI 43S) BNL
Atmospheric State Absolute Humidity Maycomm Tunable Diode Laser AAF
Dewpoint Temperature General Eastern 1011B Chilled Mirror Hygrometer (CMH) AAF
Gust Probe Rosemount 1221F2 AAF
Static Pressure Rosemount 1201F1 AAF
Temperature Rosemount 102 AAF

B-200 King Air Payload

Measurement Instrument Sponsor
Aerosol Optical Depth Research Scanning Polarimeter NASA/GISS
Backscatter Coefficient

(532 and 1064 nm)

High Spectral Resolution Lidar NASA
Backscatter Ratio (532 nm) High Spectral Resolution Lidar NASA
Depolarization High Spectral Resolution Lidar NASA
Extinction Coefficient (532 nm) High Spectral Resolution Lidar NASA

Ground-based Instruments

The following ground-based instruments should provide critical comparative data to the airborne measurements obtained during CARES. Comprehensive instrument suites will be located at two seperate ground sites (T0 and T1) in central California near Sacramento and the town of Cool, respectively.

Site T0: American River College, Sacramento, California

Category Measurement Instrument Sponsor
Aerosol Size and Composition Aerosol Atomizer PNNL
Aerosol Chemical Composition DRUM Sampler EMSL
Aerosol Chemical Composition Time-Resolved Aerosol Collector (TRAC) EMSL
Aerosol Morphology SEM Collector MTS
Aldehydes and Polar Organics Hi-Vol Filter UND
Cloud Condensation Nuclei (CCN) CCN Counter PNNL
Composition and volatility High Resolution Time of Flight Aerosol Mass Spectrometer (HR-ToF-AMS+ thermal denuder) PNNL
Hygroscopic Growth Humidigraph PNNL
Offline CI-ToF-AMS Hi-Vol Filter UW
Organic and Elemental Carbon Organic and Elemental Carbon Analyser

(OC/EC)

PNNL
Particle Size Distribution (PSD) Aerosol Particle Sizer (APS) WSU
PSD Scanning Mobility Particle Sizer (SMPS) PNNL
Single Particle Composition and Size Single Particle Laser Ablation Time-of-Flight Mass Spectrometer (SPLAT II) EMSL
Soot Mass Single Particle Soot Photometer (SP2) DMT
Water-Soluble Aerosol Chemical Composition Particle in Liquid auto Sampler (PILS) UCD
Meteorology Surface T, P, RH, Wind Vaisala WXT-510 WSU
Temperature, RH Profile Radiosonde PNNL
Wind Profile Wind Profiler PNNL
Radiation and Optical Properties Broadband Solar Radiation Flux Density Pyranometer PNNL
Direct Normal, Diffuse Horizontal, and Total

Horizontal Solar Irradiances

Ultraviolet Multifilter Rotating Shadowband Radiometer (UV-MFRSR) PNNL
J-NO2 J-NO2 Radiometer PNNL
Light Absorption and Scattering Photoacoustic Absorption Spectrometer (PAS-2) (405, 870), PA-1047 nm UNR
Light Absorption Radiance Particle/Soot Absorption Photometer (PSAP) PNNL
Light Absorption and Scattering Photoacoustic Absorption Spectrometer (PAS-3) (405, 532, 870 nm) LANL
Light Extinction and Scattering Cavity Ringdown PSU
Light Scattering Nephelometer PNNL
Trace Gases CO Vacuum UV Fluorescence WSU
Hydrocarbon Trace Gas Concentration Proton Transfer Reaction Mass Spectrometer (PTR-MS) and GC-MS WSU
NO Research Grade Instruments WSU
NO2 Research Grade Instruments WSU
NOy Research Grade Instruments WSU
O3 UV Absorption WSU
Semi-volatile Organic Gases Gas Chromatography – Ion Trap Mass Spectrometry (GC-ITMS) WSU
SO2 Thermo Model 43i PNNL

Site T1: Northside School, Cool, California

Category Measurement Instrument Sponsor
Aerosol Size and Composition Aerosol Chemical Composition DRUM Sampler EMSL
Aerosol Chemical Composition Time-Resolved Aerosol Collector (TRAC) EMSL
Aerosol Morphology SEM Collector MTU
Alehydes and Polar Organics Hi-Vol Filter UND
CCN Cloud Condensation Nuclei Counter PNNL
Composition and Volatility High Resolution Time of Flight Aerosol Mass Spectrometer (HR-TOF-AMS) Aerodyne
Dissolved Organics in Rainwater Wet/Dry Collector for Precipitation U Ark
Hygroscopic Growth Humidigraph – f(RH) PNNL
Organic and Elemental Carbon Sunset OC/EC PNNL
PSD Aerosol Particle Sizer (APS), SMPS PNNL
PSD Scanning Mobility Particle Sizer Spectrometer (SMPS) Aerodyne
Radiocarbon Hi-Vol Filter U Ark
Single Particle Composition and Size Particle Analysis by Laser Mass Spectrometry (PALMS) PNNL
Size-Selected CNN SCCN Counter BNL
Soot Mass Single Particle Soot Photometer (SP2) DMT
Water-Soluble Aerosol Specieces PILS with autosampler UCD
Meteorology Surface T, P, RH, wind Met Station PNNL
Temperature, RH profile Radiosonde PNNL
Wind profile Sodar PNNL
Radiation and Optical Properties Aerosol Extinction and Scattering Cavity Ringdown PSU
Actinic Flux Diode-Array Spectroradiometer PNNL
Broadband Solar Radiation Flux Density Pyranometer PNNL
Direct Normal, Diffuse Horizontal, and Total

Horizontal Solar Irradiances

Multifilter Rotating Shadowband Radiometer (MFRSR) PNNL
Light Absorption Athelometer BNL
Light Absorption and Scattering Nephelometer, PSAP PNNL
Light Absorption and Scattering Photoacoustic (355, 375, 405, 532, 870 nm) UNR/LANL
Light Extinction and Scattering CRD (355, 532, 1064 nm) PSU
Trace Gases CH4 Picarro Cavity Ringdown Analyzer LANL
CO Teledyne Model 300U CO Analyzer LANL
CO2 Picarro Cavity Ringdown Analyzer LANL
H2O Picarro Cavity Ringdown Analyzer LANL
Hydrocarbon Trace Gas Concentration Proton Transfer Reaction Mass Spectrometer (PTR-MS) and Gas Concentration Mass Spectrometer (GC-MS) MSU
NO Research Grade Instruments LANL
NOy Research Grade Instruments LANL
O3 LANL