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.