Atmospheric Radiation Measurement Climate Research Facility US Department of Energy
 

GOAMAZON-OFR

 

Observations and Modeling of the Green Ocean Amazon: Oxidation Flow Reactor 2

15 August 2014 - 15 October 2014

Lead Scientist: Brett Palm

Observatory: AMF, MAO

An Oxidation Flow Reactor (OFR) will be used to quantify and understand secondary organic aerosol (SOA) formation and aging at the T3 site during GoAmazon2014. In the OFR, high OH concentrations are produced by in situ photolysis of O2 and H2O, and high O3 is produced by direct injection of O3 (produced externally). When coupled with state-of-the-art aerosol and gas detection systems, the OFR is capable of rapid quantification of SOA production and chemical evolution, with equivalent atmospheric oxidant ages from a few hours up to ~3 weeks. At GoAmazon2014, the output of the flow reactor will be measured using an aerosol mass spectrometer (HR-ToF-AMS), scanning mobility particle sizer (SMPS), and proton-transfer reaction mass spectrometer (PTR-TOFMS). These data will contribute to a better understanding of the Aerosol Life Cycle by investigating the influence of gaseous and particulate anthropogenic emissions on SOA formation in a biogenic rich environment. The HR-ToF-AMS and SMPS will provide size-resolved chemical composition, oxidation state, and number concentrations of total non-refractory submicron aerosol particles that are formed and aged in the OFR. The PTR-TOFMS will quantify the consumption and production of VOCs by oxidation of ambient VOCs and particles in the OFR. These complementary particle-phase and gas-phase data will be compared and contrasted between pristine and polluted airmasses to investigate the anthropogenic influence on SOA sources, formation, and aging in the Amazon rainforest. Important Note Regarding Data: Please see the complete data set for both Phase 1 and Phase 2 located at

http://www.arm.gov/campaigns/amf2014goamazon-oxidflow

Co-Investigators

Douglas Day
Jose-Luis Jimenez

Related Publications

2018

Palm B, S de Sá, D Day, P Campuzano-Jost, W Hu, R Seco, S Sjostedt, J Park, A Guenther, S Kim, J Brito, F Wurm, P Artaxo, R Thalman, J Wang, L Yee, R Wernis, G Isaacman-VanWertz, A Goldstein, Y Liu, S Springston, R Souza, M Newburn, M Alexander, S Martin, and J Jimenez. 2018. "Secondary organic aerosol formation from ambient air in an oxidation flow reactor in central Amazonia." Atmospheric Chemistry and Physics, 18(1), doi:10.5194/acp-18-467-2018.
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AETH Aethalometer Browse Data
AIP Aerosol Intensive Properties Browse Data
AOD Aerosol Optical Depth, derived from atmospheric extinction of solar irradiance Browse Data
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CCN Cloud Condensation Nuclei Particle Counter Browse Data
CEIL Ceilometer Browse Data
CLAP Continuous Light Absorption Photometer Browse Data
CO-ANALYZER Carbon Monoxide Analyzer Browse Data
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DL Doppler Lidar Browse Data
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ECMWFDIAG European Centre for Medium Range Weather Forecasts Diagnostic Analyses Browse Data
ECOR Eddy Correlation Flux Measurement System Browse Data
GNDRAD Ground Radiometers on Stand for Upwelling Radiation Browse Data
IRT Infrared Thermometer Browse Data
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MET Surface Meteorological Instrumentation Browse Data
MFR Multifilter Radiometer Browse Data
MFRSR Multifilter Rotating Shadowband Radiometer Browse Data
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MPL Micropulse Lidar Browse Data
MPLCMASK Cloud mask from Micropulse Lidar Browse Data
MWR Microwave Radiometer Browse Data
MWR3C Microwave Radiometer, 3 Channel Browse Data
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MWRP Microwave Radiometer Profiler Browse Data
MWRRET MWR Retrievals Browse Data
NEPHELOMETER Nephelometer Browse Data
NFOV Narrow Field of View Zenith Radiometer Browse Data
NOX Nitrogen Oxides Monitor Browse Data
OZONE Ozone Monitor Browse Data
PASS Photoacoustic Soot Spectrometer Browse Data
PBLHT Planetary Boundary Layer Height Browse Data
PSAP Particle Soot Absorption Photometer Browse Data
QCECOR Quality Controlled Eddy Correlation Flux Measurement Browse Data
QCRAD Data Quality Assessment for ARM Radiation Data Browse Data
RADFLUXANAL Radiative Flux Analysis Browse Data
RAIN Rain Gauge Browse Data
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SEBS Surface Energy Balance System Browse Data
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SO2 Sulfur Dioxide Monitor Browse Data
SODAR Mini Sound Detection and Ranging Browse Data
SONDE Balloon-Borne Sounding System Browse Data
SP2 Single Particle Soot Photometer Browse Data
TSI Total Sky Imager Browse Data
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