Capabilities / Instruments

PSAP

Particle Soot Absorption Photometer

Baseline VAP, Baseline Instrument, External Instrument, Guest

The particle soot absorption photometer collects aerosol particles on a substrate and measures the change in light transmission relative to a reference filter. Bulk particle absorption is derived after correcting for scattering effects.

The PSAP is part of the aerosol observing system (AOS).

Primary Measurements

Aerosol absorption

Handbook Browse Data

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Contact

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Elisabeth Andrews
Lead Mentor: NSA University of Colorado
Arthur Sedlacek
Lead Mentor Brookhaven National Laboratory

Related Data Announcements

Aerosol Optical Properties Data Released for TRACER, SAIL Campaigns

References

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Mayol-Bracero et al. ARM FY2025 Aerosol Operations Plan. 2024. 10.2172/2482516.
Mei et al. Single-Channel Tricolor Absorption Photometer (STAP) Instrument Handbook. 2020. 10.2172/1734658.
Springston et al. Particle Soot Absorption Photometer (PSAP) Instrument Handbook. 2018. 10.2172/1246162.

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Atmospheric Radiation Measurement (ARM) | Reviewed October 2024