aps > Aerodynamic Particle SizerInstrument Type(s) > Baseline • Guest

The aerodynamic particle sizer (APS) is a particle size spectrometer that measures both the particle aerodynamic diameter based on particle time of flight and optical diameter based on scattered light intensity. The APS provides the number size distribution for particles with aerodynamic diameters from 0.5 to 20 micrometers and with optical diameters from 0.3 to 20 micrometers.

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


  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Locations

Facility Name Start Date
Lamont, OK (Extended and Co-located with C1) 2016-11-15


Giangrande S, J Comstock, S Collis, J Shilling, K Gaustad, K Kehoe, S Xie, and D Zhang. 2022. Translator Plan: A Coordinated Vision for Fiscal Years 2023-2025. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-22-003. 10.2172/1893730.

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Creamean J, K Barry, T Hill, C Hume, P DeMott, M Shupe, S Dahlke, S Willmes, J Schmale, I Beck, C Hoppe, A Fong, E Chamberlain, J Bowman, R Scharien, and O Persson. 2022. "Annual cycle observations of aerosols capable of ice formation in central Arctic clouds." Nature Communications, 13(1), 3537, 10.1038/s41467-022-31182-x.

Gristey J, G Feingold, K Schmidt, and H Chen. 2022. "Influence of Aerosol Embedded in Shallow Cumulus Cloud Fields on the Surface Solar Irradiance." Journal of Geophysical Research: Atmospheres, 1 27(11), e2022JD036822, 10.1029/2022JD036822.

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