ATom: Ultrafine Aerosol Characteristics and Formation, Lower Stratosphere, 2016-2018

Description

This dataset consists of (a) selected aerosol and gas-phase observations made on all four deployments of NASA Atmospheric Tomography Mission (ATom), (b) thermodynamic properties related to aerosol formation derived from these measurements, (c) 48-h back trajectories for ATom-4 observations, and (d) output from the Model of Aerosols and Ions in the Atmosphere (MAIA). ATom observations, thermodynamics, and back trajectories were inputs for MAIA model runs. MAIA runs focused on data from ATom-4 deployment, and output includes aerosol formation rates, and ultrafine particle size distributions and number concentrations in the lowermost stratosphere (LMS). ATom 1-4 deployments included all four seasons from 2016 to 2018. This investigation sought to understand how new particle formation (NPF) can occur in the LMS, factors influencing the amount of NPF, and other potential sources of ultrafine aerosols in this region of the atmosphere. The data are provided in comma-separated value (CSV) format.

Resources

Name Format Description Link
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/atom/Aerosol_Sulfate_LowermostStrat/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ATOM/guides/Aerosol_Sulfate_LowermostStrat.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1868
21 ATom campaign page https://daac.ornl.gov/ATOM/campaign/
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1868
33 ATom: Ultrafine Aerosol Characteristics and Formation, Lower Stratosphere, 2016-2018: Aerosol_Sulfate_LowermostStrat.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/Aerosol_Sulfate_LowermostStrat/comp/Aerosol_Sulfate_LowermostStrat.pdf
34 Histograms of the total number of aerosols between 3 and 4500 nm in the LMS (ozone 250-400 ppbv, altitude > 8 km) for the SH and NH) for all ATom deployments (a-d), by season. Modified from fig. 2 of Williamson et al. (2021). https://daac.ornl.gov/ATOM/guides/Aerosol_Sulfate_LowermostStrat_Fig1.png

Tags

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

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