ISDACHTDMA

In conjunction with the ISDAC project, a Humidified Tandem Differential Mobility Analyzer (HDTMA) was used to characterize the size-resolved hygroscopicity of an aerosol. When coupled with a concurrently measured aerosol size distribution, these data can be employed: i) to predict the humidity dependent optical properties and CCN spectra of the aerosol population; ii) to constrain the atmospheric processes responsible for changes in particle size and properties; and iii) to isolate the properties and impact of a single particle type that is present in an external mixture. These measurements were particularly valuable for quantifying the contribution of specific classes of particles to the total CCN concentration.

Timeline

Campaign Data Sets