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Description

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). Integrated number, surface area, and volume concentrations from LAS are reported over multiple size ranges.

Product Summary

Platforms
NASA DC-8
Instruments
PALMS
Projects
ATom
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2016-07-29 to 2018-05-21
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2704946432-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
278
Processing Level
2
Published
Updated
Science Keywords
Aerosol Particle Properties ,
Chemical Composition ,
Air Quality ,
Black Carbon

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Froyd, K. D., Murphy, D. M., Schill, G. P., & Brock, C. A. (2021). ATom: Measurements from Particle Analysis By Laser Mass Spectrometry (PALMS) (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1733 Date Accessed: 2026-09-27

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Publications Citing This Dataset

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Title Authors Year Referenced Datasets
Limited longterm photolysis of stratospheric organic aerosols with implications for CESM modeling
  • Guan, Jian, Solomon, Susan, Murphy, Daniel M., Stone, Kane, Yu, Pengfei, Kinnison, Douglas, Schill, Gregory P., Tilmes, Simone, Lawler, Michael J.
Implementation of Dynamic Fire Injection Height in GFDL's Atmospheric
  • Pouyaei, Arman, Ginoux, Paul, Ward, Daniel S., Yu, Yan, Horowitz, Larry W.
Sea Spray Aerosol Over the Remote Oceans Has Low Organic Content
  • Lawler, Michael J., Schill, Gregory P., Brock, Charles A., Froyd, Karl D., Williamson, Christina, Kupc, Agnieszka, Murphy, Daniel M.
The GFDL Variable-Resolution Global Chemistry-Climate Model for Research
  • Lin, Meiyun, Horowitz, Larry W., Zhao, Ming, Harris, Lucas, Ginoux, Paul, Dunne, John, Malyshev, Sergey, Shevliakova, Elena, Ahsan, Hamza, Garner, Steve, Paulot, Fabien, Pouyaei, Arman, Smith, Steven J., Xie, Yuanyu, Zadeh, Niki, Zhou, Linjiong
A new airborne single particle mass spectrometer: PALMS-NG
  • Jacquot, Justin L., Shen, Xiaoli, Abou-Ghanem, Maya, Froyd, Karl D., Lawler, Michael, Schill, Gregory P., Slovacek, Kyra, Thomson, David S., Cziczo, Daniel J., Murphy, Daniel M.
Pyrocumulonimbus affect average stratospheric aerosol composition
  • Katich, J. M., Apel, E. C., Bourgeois, I., Brock, C. A., Bui, T. P., Campuzano-Jost, P., Commane, R., Daube, B., Dollner, M., Fromm, M., Froyd, K. D., Hills, A. J., Hornbrook, R. S., Jimenez, J. L., Kupc, A., Lamb, K. D., McKain, K., Moore, F., Murphy, D. M., Nault, B. A., Peischl, J., Perring, A. E., Peterson, D. A., Ray, E. A., Rosenlof, K. H., Ryerson, T., Schill, G. P., Schroder, J. C., Weinzierl, B., Thompson, C., Williamson, C. J., Wofsy, S. C., Yu, P., Schwarz, J. P.
Characteristics of Rain-Snow Transitions Over the Canadian Rockies and their Changes in Warmer Climate Conditions
  • Theriault, Julie M., Leroux, Nicolas R., Tchuem Tchuente, Obert, Stewart, Ronald E.
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