smps > Scanning mobility particle sizerInstrument Type(s) > Baseline • Guest

The scanning mobility particle sizer (SMPS) is a particle size spectrometer that measures the aerosol number size distribution by sizing particles based on their electrical mobility diameter using a differential mobility analyzer (DMA) and by counting particles using a condensation particle counter (CPC). It measures aerosol concentration and aerosol particle size distribution.

The SMPS can measure the aerosol number size distribution in the particle diameter range from 10 to 500 nanometers (Regular SMPS) and from 2 to 150 nanometers (Nano SMPS).

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



  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Instrument Locations

Facility Name Instrument Start Date
Houston, TX; AMF1 (main site for TRACER) 2021-04-14
Lamont, OK (Extended and Co-located with C1) 2016-11-15


Uin J and S Smith. 2021. Southern Great Plains (SGP) Aerosol Observing System (AOS) Instrument Handbook. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-267.


Uin J and S Smith. 2020. Mobile Aerosol Observing System – Aerosols (MAOS-A) Instrument Handbook. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-263.

Li H and A May. 2020. "An Exploratory Approach Using Regression and Machine Learning in the Analysis of Mass Absorption Cross Section of Black Carbon Aerosols: Model Development and Evaluation." Atmosphere, 11(11), 10.3390/atmos11111185.

Zheng G, C Kuang, J Uin, T Watson, and J Wang. 2020. "Large contribution of organics to condensational growth and formation of cloud condensation nuclei (CCN) in the remote marine boundary layer." Atmospheric Chemistry and Physics, 20(21), 10.5194/acp-20-12515-2020.

Hiranuma N and HS Vepuri. 2020. Examining the Ice-Nucleating Particles from the Southern Great Plains Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-20-018.

Knopf DA, P DeMott, J Creamean, T Hill, N Riemer, N Hiranuma, A Laskin, R Sullivan, A Fridlind, X Liu, and M West. 2020. Aerosol-Ice Formation Closure Pilot Study (AEROICSTUDY) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-20-017.

Watson T, A Aiken, Q Zhang, P Croteau, T Onasch, L Williams, and C Flynn. 2020. Second ARM Aerosol Chemical Speciation Monitor Users’ Meeting Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-249.

Lee J, M Dubey, A Aiken, P Chylek, and C Carrico. 2020. "Optical and chemical analysis of absorption enhancement by mixed carbonaceous aerosols in the 2019 Woodbury, AZ fire plume." Journal of Geophysical Research: Atmospheres, 125(15), e2020JD032399, 10.1029/2020JD032399.
Research Highlight

Zheng G, A Sedlacek, A Aiken, Y Feng, T Watson, S Raveh-Rubin, J Uin, E Lewis, and J Wang. 2020. "Long-range transported North American wildfire aerosols observed in marine boundary layer of eastern North Atlantic." Environment International, 139, 10.1016/j.envint.2020.105680.

Thornton J, J Shilling, M Shrivastava, E D’Ambro, M Zawadowicz, and J Liu. 2020. " A Near-Explicit Mechanistic Evaluation of Isoprene Photochemical Secondary Organic Aerosol Formation and Evolution: Simulations of Multiple Chamber Experiments with and without Added NO ." ACS Earth and Space Chemistry, 4(7), 10.1021/acsearthspacechem.0c00118.

View All Related Publications