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Earth Observing Laboratory
Field Data Archive

Single Particle Soot Photometer (SP2)

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Summary

The Single Particle Soot Photometer (SP2) is an instrument that directly measures the refractory black carbon (rBC) content in individual accumulation-mode aerosol particles and can identify iron-oxide-like aerosol composition and concentration (here refered to as light absorbing metallic (LAM) aerosol). For the first HIPPO circuit (HIPPO-1), the dataset contains only SP2 rBC  data measured aboard the NSF/NCAR GV . The data are in NASA AMES format.

Data access

  • ORDER data to made available for download
    • user agreement required

Additional information

Identifier
Data Quality final
Versions
  • 1.0 (2011-05-17)
  • 2.0 (2020-07-27):

    A reanalysis of HIPPO Single Particle Soot Photometer data was carried out to generate a new data product: the mass and number concentration of iron-oxide-like aerosols (here generally referred to as light absorbing metallic (LAM) particles), and the fraction of these that have detection properties consistent with anthropogenic iron oxides. The update adds these products to the files. The format of the files has been updated to reflect this, and file names harmonized between HIPPO campaigns. Note that the new product is not available from HIPPO 1, so those files only have -9999.99 entries for the LAM data. 

(Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
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Frequency 1 second
Language English
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Temporal coverage

Begin datetime 2009-01-09 00:00:00
End datetime 2009-01-30 23:59:59

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 90.00, Minimum (South) Latitude: -70.00
Minimum (West) Longitude: 165.00, Maximum (East) Longitude: -80.00

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

Citation

Schwarz, J., et al. 2020. Single Particle Soot Photometer. Version 2.0. null. https://doi.org/10.26023/P0S9-S2JT-KY09. Accessed 16 Dec 2025.

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NSF

This material is based upon work supported by the NSF National Center for Atmospheric Research, a major facility sponsored by the U.S. National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.