Simplified parameterization of GCR/SEP-produced 10Be using CCM SOCOL-AERv2-BE

A simple parameterization of cosmogenic 10Be is presented based on the specialized SOCOL-AERv2-BE chemistry-climate model coupled with the CRAC:10Be isotope production model. The model includes all the relevant atmospheric processes and allows computing the isotope concentration at any given location and time. The full model was verified by 10Be isotope measurements in five Antarctic and Greenland ice cores for the period 1980 – 2007. The model reasonably well reproduces the average concentration and solar-cycle dependency for most observational sites but does not perfectly catch the interannual variability at sites with complex orography likely due to the too-rough model grid. This implies that the model correctly reproduces the large-scale atmospheric dynamics but effectively averages out synoptic-scale variability.  A parameterization of the full-model results is agreed with the full model within 20% in polar regions. This parameterization allows the user to make a quick estimate of near-ground 10Be concentrations based only on production rates without heavy calculations.