High resolution aerosol data from Greenland NGRIP and NEEM ice cores. All data was measured using continuous flow analysis with the Bern CFA system during the respective field campaigns. A detailed description of the measurement procedures can be found in Röthlisberger et al. (2000) and Kaufmann et al. (2008) and are summarised in the accompanying ESSD publication (Erhardt et al 2022). Data is provided at 1mm depth resolution and 10yr averages on the GICC05 age scale of the respective core (Andersen et al, 2006; Rasmussen et al., 2006; Svensson et al., 2008; Wolff et al., 2010; Rasmussen et al., 2013). For a detailed description of the uncertainties in the presented data refer to the accompanying ESSD publication. If you use this data please cite Röthlisberger et al. (2000), Kaufmann et al. (2008) and Erhardt et al. (2022).