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Properties of Tropical Aerosols

NASA DC-8 Aircraft.

The NASA DC-8 aircraft was used for the ATom missions.

ATom: In Situ Tropical Aerosol Properties and Comparable Global Model Outputs

This new Atmospheric Tomography Mission (ATom) dataset provides in situ aerosol particle property measurements collected during the ATom-1 and ATom-2 campaigns and modeled outputs of comparable aerosol properties, atmospheric chemistry, and meteorology at 70 m resolution from four chemical-transport models. The measurements of vertical profiles of aerosol particle size distributions comprise four sets of contiguous flights over the Pacific and Atlantic Ocean basins from July 29, 2016 to February 21, 2017. The flights focused on the remote marine atmosphere, constantly profiling between about 0.18 and 11-13 km altitude to resolve the vertical structure of the atmosphere. These data provide a global-scale survey of new particle formation occurrence in the tropics.

ATom is a NASA Earth Venture Suborbital-2 mission to study the impact of human-produced air pollution on greenhouse gases and on chemically reactive gases in the atmosphere. See all ORNL DAAC data from ATom.

Data Citation: Williamson, C.J., A. Kupc, K.R. Bilsback, T.P. Bui, P.C. Jost, M. Dollner, K.D. Froyd, A.L. Hodshire, J.L. Jimenez, J.K. Kodros, G. Luo, D.M. Murphy, B.A. Nault, E. Ray, B. Weinzierl, F. Yu, P. Yu, J.R. Pierce, and C.A. Brock. 2019. ATom: In Situ Tropical Aerosol Properties and Comparable Global Model Outputs. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1684
Data Center: ORNL DAAC
Sponsor: EOSDIS