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Description

This dataset provides the atmospheric concentrations of separated ions from inorganic and organic species measured by the High-Resolution Aerosol Mass Spectrometer (HR-AMS) collected during flights of the NASA ATom Mission. Data are available from all four ATom Campaigns. The HR-AMS detects non-refractory submicron aerosol composition by impaction on a vaporizer at 600 degrees C, followed by electron ionization and time-of-flight mass spectral analysis. The measurements include chemically speciated submicron non-refractory particulate mass at a one second and 60 second resolution, and the size distribution of chemically speciated submicron non-refractory particulate mass at 60 second resolution.

Product Summary

Platforms
NASA DC-8
Instruments
AMS
Spatial Extent
N: 90 S: -90 E: 180 W: -180
Geographic Region
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
c2676900537-ornl_cloud
Data State
COMPLETE
Processing Level
2
Published
Updated

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

Jimenez, J. L., Campuzano-Jost, P., Day, D. A., Nault, B. A., Price, D. J., & Schroder, J. C. (2019). ATom: L2 Measurements from CU High-Resolution Aerosol Mass Spectrometer (HR-AMS) (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1716 Date Accessed: 2025-07-30

Documents

GENERAL DOCUMENTATION ATom: L2 Measurements from CU High-Resolution Aerosol Mass Spectrometer (HR-AMS): AMS_Data_Dictionary.csv
GENERAL DOCUMENTATION ATom: L2 Measurements from CU High-Resolution Aerosol Mass Spectrometer (HR-AMS): AMSSD_Data_Dictionary.csv
GENERAL DOCUMENTATION ATom: L2 Measurements from CU High-Resolution Aerosol Mass Spectrometer (HR-AMS): AMS-60s_Data_Dictionary.csv
USER'S GUIDE ORNL DAAC Data Set Documentation

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