Atmospheric Radiation Measurement Climate Research Facility US Department of Energy

Carbonaceous Aerosol and Radiative Effects Study (CARES): SMPS & CCN counter deployment during CARES/Cal-NEx

4 May 2010 - 2 July 2010

Lead Scientist: Jian Wang

Observatory: OSC

CARES/Cal-NEx offered a unique opportunity to examine the CCN activity of representative organic aerosols within the boundary layer. By combining a SMPS and a dual column CCN counter, the size-resolved CCN concentrations were measured. This allowed the characterization of the cloud activation properties of major organic aerosols.

The AAF SMPS and MAOS dual column CCN counter were operated in series to characterize size-resolve CCN concentrations. The two instruments were deployed at Los Angeles ground site from May 10 to June 7, 2010, and at the T1 site at Cool, CA from June 8 to June 30th, 2010.

Related Publications


Shilling J, M Pekour, E Fortner, P Artaxo, S de Sá, J Hubbe, K Longo, L Machado, S Martin, S Springston, J Tomlinson, and J Wang. 2018. "Aircraft observations of the chemical composition and aging of aerosol in the Manaus urban plume during GoAmazon 2014/5." Atmospheric Chemistry and Physics, 18(14), 10.5194/acp-18-10773-2018.


Woody M, K Baker, P Hayes, J Jimenez, B Koo, and H Pye. 2016. "Understanding sources of organic aerosol during CalNex-2010 using the CMAQ-VBS." Atmospheric Chemistry and Physics, 16(6), 10.5194/acp-16-4081-2016.


Chakrabarty RK, ND Beres, H Moosmuller, S China, C Mazzoleni, MK Dubey, L Liu, and MI Mishchenko. 2014. "Soot superaggregates from flaming wildfires and their direct radiative forcing." Scientific Reports, 4, 5508, 10.1038/srep05508.

Knote C, A Hodzic, J Jimenez, R Volkamer, JJ Orlando, S Baidar, J Brioude, J Fast, DR Gentner, AH Goldstein, PL Hayes, BW Knighton, H Oetjen, A Setyan, H Stark, R Thalman, G Tyndall, R Washenfelder, E Waxman, and Q Zhang. 2014. "Simulation of semi-explicit mechanisms of SOA formation from glyoxal in aerosol in a 3-D model." Atmospheric Chemistry and Physics, 14(12), 10.5194/acp-14-6213-2014.
Research Highlight


Mei F, A Setyan, Q Zhang, and J Wang. 2013. "CCN activity of organic aerosols observed downwind of urban emissions during CARES." Atmospheric Chemistry and Physics, 13(24), 10.5194/acp-13-12155-2013.

Cazorla A, R Bahadur, KJ Suski, JF Cahill, D Chand, B Schmid, V Ramanathan, and K Prather. 2013. "Relating aerosol absorption due to soot, organic carbon, and dust to emission sources determined from in-situ chemical measurements." Atmospheric Chemistry and Physics, 13(18), 10.5194/acp-13-9337-2013.


Setyan A, Q Zhang, M Merkel, WB Knighton, Y Sun, C Song, J Shilling, TB Onasch, S Herndon, D Worsnop, JD Fast, R Zaveri, LK Berg, A Wiedensohler, BA Flowers, MK Dubey, and R Subramanian. 2012. "Characterization of submicron particles influenced by mixed biogenic and anthropogenic emissions using high-resolution aerosol mass spectrometry: results from CARES." Atmospheric Chemistry and Physics, 12(17), 10.5194/acp-12-8131-2012.
Research Highlight


Mei F, J Wang, J Jimenez, and Q Zhang. 2011. Cloud Activation Properties of Organic Aerosols Observed at Urban Sites During CALNEX-LA and CARES. Presented at 2nd Atmospheric System Research (ASR) Science Team Meeting. San Antonio, TX.

View All Related Publications

Campaign Data Sets

IOP Participant Data Source Name Final Data
Jian Wang Cloud Condensation Nuclei Counter- T1 Site Order Data