Vertical properties of aerosols in the Arctic lower atmosphere and their impact on cloud radiative effects (2022)

These measurements were made as part of the Alaskan Layered Pollution And Chemical Analysis (ALPACA)-2022 field study (https://alpaca.community.uaf.edu/alpaca-field-study/), which investigated air pollution under dark and cold conditions in Fairbanks, Alaska in January and February, 2022. This data set includes vertical profiles of aerosol measurements (Number concentration above 7 nanometer (nm), number size distribution for mobility diameters between 8 and 270 nm and optical diameters between 186 and 3370 nm, light absorption coefficients at wavelengths of 450, 525 and 624 nm), trace gas measurements (Carbon monoxide (CO), ozone (O3) and carbon dioxide (CO2)) and temperature. Measurements were obtained from the Modular Multiplatform Compatible Air Measurement System (MoMuCAMS) (Pohorsky et al., 2024, https://doi.org/10.5194/amt-17-731-2024), an instrumental platform for boundary layer profiling with a tethered-balloon. Measurements were performed at the University of Alaska (UAF) Farm site, a suburban area of Fairbanks (64.853°North [N], 147.859°West [W], 138 meter above sea level). In total 24 flights were performed with different instrumental setups.