GOAMAZON-AMS
Observations and Modeling of the Green Ocean Amazon: Aerosol Mass Spectrometry
15 January 2014 - 31 December 2014
Lead Scientist: Lizabeth Alexander
Observatory: amf, mao
The first objective of the proposed project was to understand and quantify the interactions of biogenic and anthropogenic emissions with respect to the production of secondary organic aerosol (SOA). In clean conditions in the Amazon basin, SOA dominates the diameter distribution of the submicron particles. How and why is the diameter distribution shifted by pollution? The second objective follows from the first in that, although the diameter distribution is dominated by SOA, the actual source of new particle production remains uncertain (i.e., the number concentration). The second objective was to test the hypothesis that new particles under natural conditions are produced as a result of evaporation of primary particles emitted by fungal spores as well as to investigate any shifts in this mechanism under pollution conditions, e.g., in consequence to the high concentrations of SO2 in the pollution plume. Combined, the number-diameter distribution is the key connection to upscaling to the effects of aerosol particles on clouds and climate. Understanding this upscaling under clean and pollution conditions, including differences, is the third objective.
EMSL provided its high resolution aerosol mass spectrometry, or AMS, capability for the field campaign and associated user facility support for the entire year of 2014, focused on addressing the first and second objectives described above. The AMS quantitatively measures the size and chemical composition of volatile/semi-volatile submicron aerosols. It is designed to provide quantitative composition information on ensembles of particles. Therefore the deployment of the EMSL AMS provided an unprecedented continuous data set of size and composition of aerosol particles produced over the range of conditions represented by on annual cycle.
In addition during the two Intensive Operating Periods (IOPs), one for 8 weeks in the spring and another for 8 weeks in the fall which capture aerosol production conditions in both the rainy and dry season, the EMSL AMS were operated in conjunction with Professors Scot Martin of Harvard and Professor Jose Jimenez of UC Boulder with special front end sampling equipment to determine not only existing SOA but the potential aerosol mass (PAM) obtained by subjecting part of the sample air to oxidizing conditions found in the rain forest atmosphere, thereby providing a good measure of the final distribution of SOA downwind from the AMS sampling site.
Co-Investigators
Suzane deSa |
Scot Martin |
Matthew Newburn |
Timeline
- Parent Campaign
- Sibling Campaign
Related Publications
2015
Hu WW, P Campuzano-Jost, BB Palm, DA Day, AM Ortega, PL Hayes, JE Krechmer, Q Chen, M Kuwata, YJ Liu, SS de Sá, K McKinney, ST Martin, M Hu, SH Budisulistiorini, M Riva, JD Surratt, JM St Clair, G Isaacman-Van Wertz, LD Yee, AH Goldstein, S Carbone, J Brito, P Artaxo, JA de Gouw, A Koss, A Wisthaler, T Mikoviny, T Karl, L Kaser, W Jud, A Hansel, KS Docherty, ML Alexander, NH Robinson, H Coe, JD Allan, MR Canagaratna, F Paulot, and JL Jimenez. 2015. "Characterization of a real-time tracer for isoprene epoxydiols-derived secondary organic aerosol (IEPOX-SOA) from aerosol mass spectrometer measurements." Atmospheric Chemistry and Physics, 15(20), 10.5194/acp-15-11807-2015.
View All Related Publications
Campaign Data Sets
IOP Participant | Data Source Name | Final Data |
---|---|---|
Lizabeth Alexander | Time of Flight Aerosol Mass Spectrometer | Order Data |
MAO Data Sources
Name | Full Name | Browse Data |
---|---|---|
ACSM |
Aerosol Chemical Speciation Monitor | Browse Data |
AERI |
Atmospheric Emitted Radiance Interferometer | Browse Data |
AERINF |
AERI Noise Filtered | Browse Data |
AETH |
Aethalometer | Browse Data |
AIP |
Aerosol Intensive Properties | Browse Data |
AOD-MFRSR |
Aerosol Optical Depth (AOD) derived from MFRSR measurements | Browse Data |
AOP |
Aerosol Optical Properties | Browse Data |
AOS |
Aerosol Observing System | Browse Data |
AOSCCNAVG |
Aerosol Observing System (AOS): cloud condensation nuclei data, averaged | Browse Data |
AOSMET |
Meteorological Measurements associated with the Aerosol Observing System | Browse Data |
AOSSP2BC |
Aerosol Observing System Single Particle Soot Photometer Black Carbon | Browse Data |
ARMBE |
ARM Best Estimate Data Products | Browse Data |
CCN |
Cloud Condensation Nuclei Particle Counter | Browse Data |
CEIL |
Ceilometer | Browse Data |
CEILPBLHT |
Boundary-layer height data with CEIL | Browse Data |
CLAP |
Continuous Light Absorption Photometer | Browse Data |
CO-ANALYZER |
Carbon Monoxide Analyzer | Browse Data |
CPC |
Condensation Particle Counter | Browse Data |
CSPHOT |
Sunphotometer | Browse Data |
DL |
Doppler Lidar | Browse Data |
DLPROF-WIND |
Doppler Lidar Horizontal Wind Profiles | Browse Data |
DLPROF-WSTATS |
Doppler Lidar Wind Statistics Profiles | Browse Data |
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 |
INTERPSONDE |
Interpolated Sonde | Browse Data |
IRT |
Infrared Thermometer | Browse Data |
LDIS |
Laser Disdrometer | Browse Data |
LDQUANTS |
Laser Disdrometer Quantities | Browse Data |
MET |
Surface Meteorological Instrumentation | Browse Data |
MFR |
Multifilter Radiometer | Browse Data |
MFRSR |
Multifilter Rotating Shadowband Radiometer | Browse Data |
MFRSRCLDOD |
Cloud Optical Properties from MFRSR Using Min Algorithm | Browse Data |
MICROBASEKAPLUS |
improved MICROBASE product with Uncertainties | Browse Data |
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 |
MWRHF |
Microwave Radiometer - High Frequency | Browse Data |
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 |
RWP |
Radar Wind Profiler | Browse Data |
SASHE |
Shortwave Array Spectroradiometer-Hemispheric | Browse Data |
SASZE |
Shortwave Array Spectroradiometer-Zenith | Browse Data |
SEBS |
Surface Energy Balance System | Browse Data |
SKYRAD |
Sky Radiometers on Stand for Downwelling Radiation | Browse Data |
SMPS |
Scanning mobility particle sizer | Browse Data |
SO2 |
Sulfur Dioxide Monitor | Browse Data |
SODAR |
Mini Sound Detection and Ranging | Browse Data |
SONDE |
Balloon-Borne Sounding System | Browse Data |
SONDEGRID |
Gridded Sonde VAP Product | Browse Data |
SONDEPARAM |
convective parameters derived from radiosonde data | Browse Data |
TSI |
Total Sky Imager | Browse Data |
UHSAS |
Ultra-High Sensitivity Aerosol Spectrometer | Browse Data |
VARANAL |
Constrained Variational Analysis | Browse Data |
VISST |
Minnis Cloud Products Using Visst Algorithm | Browse Data |
WACR |
W-Band (95 GHz) ARM Cloud Radar | Browse Data |
WACRARSCL |
W-band Cloud Radar Active Remote Sensing of Cloud | Browse Data |