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CPC

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cpc > Condensation Particle CounterInstrument Type(s) > Baseline • Evaluation • External • Guest

The condensation particle counter (CPC) measures sub-micron aerosol particle number concentration by condensing fluid onto particles and causing them to grow to sizes that are easily detectable by optical scattering. The condensing liquid is typically an alcohol (e.g., butanol) or water.

Depending on the CPC type, typical CPC instruments can count particles with sizes that range from 3 to 3000 nanometers (ultrafine CPC) or from 10 to 3000 nanometers (fine CPC). The CPC is part of the aerosol observing system (AOS).

Measurements

Aerosol concentration

Locations

  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Instrument Locations

Facility Name Instrument Start Date
Oliktok Point, Alaska; AMF3 2016-08-06
Lamont, OK (Extended and Co-located with C1) 2016-11-14
U. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AOS 2014-02-01
Graciosa Island, Azores, Portugal; Supplemental Site 2017-07-20
Off the Coast of California - NOAA Ship Ronald H. Brown; AMF2 2015-01-09
Los Angeles, CA to Honolulu, HI - container ship Horizon Spirit; AMF2 2012-10-01
Graciosa Island, Azores, Portugal 2013-10-04

2020

Dorsey K, D Dexheimer, and J Hardesty. 2020. Tethered Balloon Systems. Ed. by Rolanda Jundt, ARM user facility. DOE/SC-ARM-20-015.

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.

Gallo F, J Uin, S Springston, J Wang, G Zheng, C Kuang, R Wood, E Azevedo, A McComiskey, F Mei, A Theisen, J Kyrouac, and A Aiken. 2020. "Identifying a regional aerosol baseline in the eastern North Atlantic using collocated measurements and a mathematical algorithm to mask high-submicron-number-concentration aerosol events." Atmospheric Chemistry and Physics, 20(12), 10.5194/acp-20-7553-2020.
Research Highlight

Kuang C. 2020. Vertically Resolved New Particle Formation Study – Southern Great Plains Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-20-009.

Marchand R. 2020. Macquarie Island Cloud and Radiation Experiment (MICRE) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-20-005.

Zheng X, B Xi, X Dong, T Logan, Y Wang, and P Wu. 2020. "Investigation of aerosol-cloud interactions under different absorptive aerosol regimes using Atmospheric Radiation Measurement (ARM) southern Great Plains (SGP) ground-based measurements." Atmospheric Chemistry and Physics, 20(6), 10.5194/acp-20-3483-2020.

Lubin D, D Zhang, I Silber, R Scott, P Kalogeras, A Battaglia, D Bromwich, M Cadeddu, E Eloranta, A Fridlind, A Frossard, K Hines, S Kneifel, W Leaitch, W Lin, J Nicolas, H Powers, P Quinn, P Rowe, L Russell, S Sharma, J Verlinde, and A Vogelmann. 2020. "AWARE: The Atmospheric Radiation Measurement (ARM) West Antarctic Radiation Experiment." Bulletin of the American Meteorological Society, 101(7), 10.1175/BAMS-D-18-0278.1.

Pennypacker S, M Diamond, and R Wood. 2020. "Ultra-clean and smoky marine boundary layers frequently occur in the same season over the southeast Atlantic." Atmospheric Chemistry and Physics, 20(4), 10.5194/acp-20-2341-2020.

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