aosccn100

The cloud condensation nuclei counter measures the concentration of aerosol particles by drawing an air sample through a column with thermodynamically unstable supersaturated water vapor that can condense onto aerosol particles. Particles that are activated, i.e., grown larger in the process, are counted and sized by an optical particle counter (OPC). In this way the CCN measures activated ambient aerosol particle number concentration as a function of supersaturation.

ARM operates both one- and two-column versions of the CCN.

Size of upper limit of each CCN bin

Steamboat Springs CO, USA; Mobile Facility (STORMVEX)

• Latitude: 40.4546
• Longitude: -106.787
• Publication Date: 2010-10-08
• Start Date: 2010-10-08
• End Date: 2011-04-19
• Last Updated: 2011-07-20

https://www.arm.gov/connect-with-arm/organization/instrument-mentors/list#ccn

Elisabeth Andrews

University of Colorado

Gunnar Senum

Brookhaven National Laboratory

Alexander Laskin

Purdue University

Cynthia Salwen

Brookhaven National Laboratory

Janek Uin

Brookhaven National Laboratory

http://dx.doi.org/10.5439/1227964
Atmospheric Radiation Measurement (ARM) user facility. 2010, updated hourly. Cloud Condensation Nuclei Particle Counter (AOSCCN100). 2010-10-08 to 2011-04-19, ARM Mobile Facility (SBS) Steamboat Springs CO, Christie Peak (S2). Compiled by A. Koontz. ARM Data Center. Data set accessed at http://dx.doi.org/10.5439/1227964.