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CPC

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cpc: Condensation Particle Counter

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
Graciosa Island, Azores, Portugal 2013-10-04
Off the Coast of California - NOAA Ship Ronald H. Brown; AMF2 2015-01-09
Lamont, OK (Extended and Co-located with C1) 2016-11-14
External Data (satellites and others) 2011-09-01
Oliktok Point, Alaska; AMF3 2016-08-06
Andenes, Norway; AMF1 (main site for COMBLE) 2019-09-16
U. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AOS 2014-02-01
Los Angeles, CA to Honolulu, HI - container ship Horizon Spirit; AMF2 2012-10-01
Graciosa Island, Azores, Portugal; Supplemental Site 2017-07-20

2020

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.

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, , 10.1175/BAMS-D-18-0278.1. ONLINE.

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.

2019

Shilling J, M Zawadowicz, J Liu, R Zaveri, and A Zelenyuk. 2019. "Photochemical Aging Alters Secondary Organic Aerosol Partitioning Behavior." ACS Earth and Space Chemistry, 3(22), 10.1021/acsearthspacechem.9b00248.
Research Highlight

Varble A, S Nesbitt, P Salio, E Avila, P Borque, P DeMott, G McFarquhar, S van den Heever, E Zipser, D Gochis, R Houze, M Jensen, P Kollias, S Kreidenweis, R Leung, K Rasmussen, D Romps, and C Williams. 2019. Cloud, Aerosol, and Complex Terrain Interactions (CACTI) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-19-028.

Han Y, Z Gong, J Ye, P Liu, K McKinney, and S Martin. 2019. "Quantifying the Role of the Relative Humidity-Dependent Physical State of Organic Particulate Matter in the Uptake of Semivolatile Organic Molecules." Environmental Science & Technology, 53(22), 10.1021/acs.est.9b05354.

Marinescu P, E Levin, D Collins, S Kreidenweis, and S van den Heever. 2019. "Quantifying aerosol size distributions and their temporal variability in the Southern Great Plains, USA." Atmospheric Chemistry and Physics, 19(18), 10.5194/acp-19-11985-2019.

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