TY - GEN T1 - ATom: Measurements from Particle Analysis By Laser Mass Spectrometry (PALMS) AU - Froyd, K.D. AU - Murphy, D.M. AU - Schill, G.P. AU - Brock, C.A. DO - 10.3334/ORNLDAAC/1733 UR - https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1733 AB - This dataset contains single-particle aerosol composition as measured by the Particle Analysis by Laser Mass Spectrometry (PALMS) instrument during the four ATom campaigns from 2016-2018. Single aerosol particles are classified into several particle types, including: mixed sulfate/organic nitrate, biomass burning, elemental carbon, mineral/metallic, meteoric material, alkali salt, sea salt, heavy oil combustion, and others. Particle types are reported as raw number fractions and as absolute mass concentrations. PALMS measures aerosol composition for particles from diameter ~100 to 5000 nm, with most of the particle data in the size range ~150 to 3000 nm. Also included are absolute aerosol concentrations measured by a modified Laser Aerosol Spectrometer (LAS). For absolute aerosol concentrations, integrated number, surface area, and volume concentrations are reported over multiple size ranges. KW - ATMOSPHERE, AEROSOLS, BLACK CARBON, KW - ATMOSPHERE, AEROSOLS, CHEMICAL COMPOSITION, KW - ATMOSPHERE, AEROSOLS, AEROSOL PARTICLE PROPERTIES, KW - ATMOSPHERE, AIR QUALITY, , KW - NASA DC-8, PALMS KW - black carbon KW - cloud formation KW - air pollution KW - atmospheric profiles KW - emissions KW - atmosphieric chemistry KW - laser aerosol spectrometer KW - sulfate KW - aerosols KW - nitrate PY - 2021 PB - ORNL Distributed Active Archive Center LA - en SN - https://daac.ornl.gov/cgi-bin/dataset_lister.pl?p=39 ER -