Articles | Volume 15, issue 17
https://doi.org/10.5194/gmd-15-6787-2022
https://doi.org/10.5194/gmd-15-6787-2022
Development and technical paper
 | 
08 Sep 2022
Development and technical paper |  | 08 Sep 2022

Further improvement and evaluation of nudging in the E3SM Atmosphere Model version 1 (EAMv1): simulations of the mean climate, weather events, and anthropogenic aerosol effects

Shixuan Zhang, Kai Zhang, Hui Wan, and Jian Sun

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Short summary
This study investigates the nudging implementation in the EAMv1 model. We find that (1) revising the sequence of calculations and using higher-frequency constraining data to improve the performance of a simulation nudged to EAMv1’s own meteorology, (2) using the relocated nudging tendency and 3-hourly ERA5 reanalysis to obtain a better agreement between nudged simulations and observations, and (3) using wind-only nudging are recommended for the estimates of global mean aerosol effects.