Southern Great Plains Merged and Extended Cloud Condensation Nuclei Data

This data set contains best-estimate cloud condensation nuclei (CCN) spectra for five years of data (2009-2013) at the DOE Atmospheric Radiation Measurement Southern Great Plains (SGP) observatory at 45-minute time resolution. All CCN spectra span a wide SSw range, 0.0001% to ~30%, which is not measurable by CCN instrumentation alone. This product has been constructed by combining merged aerosol size distribution data (Marinescu, Peter, and Levin, Ezra. SGP Merged Aerosol Size Distribution (CPC+SMPS+APS). United States: N. p., 2019. Web. doi:10.5439/1511037 discussed in: Marinescu, PJ, EJT Levin, D Collins, SM Kreidenweis, and SC van den Heever. 2019. "Quantifying Aerosol Size Distributions and Their Temporal Variability in the Southern Great Plains, USA." Atmospheric Chemistry and Physics 19(18): 11985–12006, https://doi.org/10.5194/acp-19-11985-2019) with measurements of aerosol hygroscopicity from the humidified tandem differential mobility analyzer (HTDMA) and measured CCN distributions over a limited water supersaturation (SSw) range. Nephelometer and aerosol chemical speciation monitor (ACSM) data are used to resolve discrepancies between the above measurements, and as quality control measures.