ATom: Ultra-High Sensitivity Aerosol Spectrometer Calibration and Performance Data

Description

This dataset provides extensive calibration and in-flight performance data for two Ultra-High Sensitivity Aerosol Spectrometers (UHSAS) used for particle size distribution and volatility measurements during the NASA Atmospheric Tomography Mission (ATom) airborne campaign. UHSAS-1 was equipped with a compact thermodenuder operating at 300 degrees C and UHSAS-2 was operated without a thermodenuder to determine the number and volume fraction of volatile particles. Laboratory studies utilized aerosols from limonene ozonolysis (limon), atomization of ammonium sulfate (AS), and atomization of 2-diethylhexyl (dioctyl) sebacate (DOS). Data include: UHSAS detection efficiency, sizing calibration, performance at a range of pressures and at a range of thermodenuder temperatures, comparison of UHSAS-2 and condensation particle counter (CPC) particle number concentrations, comparisons of UHSAS-1 and UHSAS-2 for dry particle number concentration, surface area and volume collected onboard of a NASA DC-8 aircraft during August 2016, and dry aerosol size distributions for thermodenuded and non-thermodenuded instrument collected in February 2017.

Resources

Name Format Description Link
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ATOM/guides/ATom_UHSAS_Data.html
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1619
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/atom/ATom_UHSAS_Data/
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1619
34 Fitted peak bin number for four PSL size standards and as a function of time from July 2016 to February 2017, showing calibration precision and the stability of the UHSAS-2 sizing during ATom-1 and -2 (Kupc et al., 2018). https://daac.ornl.gov/ATOM/guides/ATom_UHSAS_Data_Fig1.png
33 UHSAS calibration, size distribution, volatility data during ATom: ATom_UHSAS_Data.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_UHSAS_Data/comp/ATom_UHSAS_Data.pdf
21 ATom campaign page https://daac.ornl.gov/ATOM/campaign/

Tags

  • aerosols
  • atmosphere
  • atmospheric-chemistry
  • earth-science

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