Li, WenTu, WeichaoAlbert, J. M.Morley, S. K.2020-04-282020-04-282017-03-10W. Li, Weichao Tu, J.M. Albert, S.K. Morley. 2017. "Quantitative assessment of Earth’s radiation belt modeling." https://doi.org/10.1029/2018ja026414https://hdl.handle.net/2144/40438The “Quantitative Assessment of Radiation Belt Modeling” focus group was in place at Geospace Environment Modeling from 2014 to 2018. The overarching goals of this focus group were to bring together the current state‐of‐the‐art models for the acceleration, transport, and loss processes in Earth's radiation belts; develop event‐specific and global inputs of wave, plasma, and magnetic field to drive these models; and combine all these components to achieve a quantitative assessment of radiation belt modeling by validating against contemporary radiation belt measurements. This article briefly reviews the current understanding of radiation belt dynamics and related modeling efforts, summarizes the activities and accomplishments of the focus group, and discusses future directions.en-USRadiation belt modelingQuantitative assessmentRadiation belt dropoutRadiation belt enhancementPresentation10.1029/2018ja0264140000-0003-3495-4550 (Li, W)304385