Atmospheric Radiation Measurement Climate Research Facility US Department of Energy

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


Mei F, J Wang, S Zhou, Q Zhang, S Collier, and J Xu. 2021. "Measurement report: Cloud condensation nuclei activity and its variation with organic oxidation level and volatility observed during an aerosol life cycle intensive operational period (ALC-IOP)." Atmospheric Chemistry and Physics, 21(17), 10.5194/acp-21-13019-2021.

Subba T, M Lawler, and A Steiner. 2021. "Estimation of possible primary biological particle emissions and rupture events at the Southern Great Plains ARM site." Journal of Geophysical Research: Atmospheres, 126(16), e2021JD034679, 10.1029/2021JD034679.

Kulkarni GR, MS Levin, and JE Shilling. 2021. Cloud Condensation Nuclei Hygroscopicity Value-Added Product Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-272.

Patel P and J Jiang. 2021. "Cloud condensation nuclei characteristics at the Southern Great Plains site: role of particle size distribution and aerosol hygroscopicity." Environmental Research Communications, 3(7), 10.1088/2515-7620/ac0e0b.

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.

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