sp2 > Single Particle Soot PhotometerInstrument Type(s) > Baseline • External • Guest

The single-particle soot photometer (SP2) measures the soot (black carbon) mass of individual aerosol particles by laser-induced incandescence down to concentrations as low as ng/m^3.

The SP2 is part of the aerosol observing system (AOS).


  • Fixed
  • AMF1
  • AMF2
  • AMF3


Ohata S, T Mori, Y Kondo, S Sharma, A Hyvärinen, E Andrews, P Tunved, E Asmi, J Backman, H Servomaa, D Veber, K Eleftheriadis, S Vratolis, R Krejci, P Zieger, M Koike, Y Kanaya, A Yoshida, N Moteki, Y Zhao, Y Tobo, J Matsushita, and N Oshima. 2021. "Estimates of mass absorption cross sections of black carbon for filter-based absorption photometers in the Arctic." Atmospheric Measurement Techniques, 14(10), 10.5194/amt-14-6723-2021.

Sedlacek AJ. 2021. North Slope of Alaska Black Carbon Loadings and Mixing State for MOSAiC Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-014. 10.2172/1810321.

Wang Y, G Zheng, M Jensen, D Knopf, A Laskin, A Matthews, D Mechem, F Mei, R Moffet, A Sedlacek, J Shilling, S Springston, A Sullivan, J Tomlinson, D Veghte, R Weber, R Wood, M Zawadowicz, and J Wang. 2021. "Vertical profiles of trace gas and aerosol properties over the eastern North Atlantic: variations with season and synoptic condition." Atmospheric Chemistry and Physics, 21(14), 10.5194/acp-21-11079-2021.

Zhang J and P Zuidema. 2021. "Sunlight-absorbing aerosol amplifies the seasonal cycle in low-cloud fraction over the southeast Atlantic." Atmospheric Chemistry and Physics, 21(14), 10.5194/acp-21-11179-2021.
Research Highlight

Russell LM, D Lubin, I Silber, E Eloranta, J Muelmenstaedt, S Burrows, A Aiken, D Wang, M Petters, M Miller, A Ackerman, A Fridlind, M Witte, M Lebsock, D Painemal, R Chang, J Liggio, and M Wheeler. 2021. Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) Science Plan. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-009. 10.2172/1804710.

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