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Single Particle Soot Photometer (SP2)



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). This dataset contains SP2 rBC and LAM data measured aboard the NSF/NCAR GV during HIPPO-2. The data are in NASA AMES format.

Data access

  • ORDER data for delivery by FTP
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Additional information

Data Quality final
  • 1.0 (2012-12-07)
  • 2.0 (2020-07-28):

    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. 

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Related projects
Spatial Type point
Frequency 1 second
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2009-10-31 00:00:00
End datetime 2009-11-22 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 <>

Additional contact information


Spackman, J., et al. 2020. Single Particle Soot Photometer. Version 2.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 27 May 2024.

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