Calibration and evaluation of a broad supersaturation scanning (BS2) cloud condensation nuclei counter for rapid measurement of particle hygroscopicity and cloud condensation nuclei (CCN) activity
Najin Kim,Yafang Cheng,Nan Ma,Mira L. Pöhlker,Thomas Klimach,Thomas F. Mentel,Ovid O. Krüger,Ulrich Pöschl,and Hang Su
Najin Kim
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Minerva Research Group, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Nan Ma
Center for Air Pollution and Climate Change Research (APCC), Institute for Environmental and Climate Research (ECI), Jinan University, Guangzhou, 511443, China
Mira L. Pöhlker
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
Thomas Klimach
Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
A broad supersaturation scanning CCN (BS2-CCN) system, in which particles are exposed to a range of supersaturation simultaneously, can measure a broad range of CCN activity distribution with a high time resolution. We describe how the BS2-CCN system can be effectively calibrated and which factors can affect the calibration curve. Intercomparison experiments between typical DMA-CCN and BS2-CCN measurements to evaluate the BS2-CCN system showed high correlation and good agreement.
A broad supersaturation scanning CCN (BS2-CCN) system, in which particles are exposed to a range...
