Articles | Volume 14, issue 4
Geosci. Model Dev., 14, 1921–1948, 2021
https://doi.org/10.5194/gmd-14-1921-2021
Geosci. Model Dev., 14, 1921–1948, 2021
https://doi.org/10.5194/gmd-14-1921-2021

Model evaluation paper 12 Apr 2021

Model evaluation paper | 12 Apr 2021

Quantifying and attributing time step sensitivities in present-day climate simulations conducted with EAMv1

Hui Wan et al.

Data sets

EAM output from time step sensitivity experiments Shixuan Zhang and Hui Wan https://doi.org/10.5281/zenodo.4668866

Model code and software

EAM source codes and scripts for time step sensitivity experiments E3SM Developers, Shixuan Zhang, and Hui Wan https://doi.org/10.5281/zenodo.4118705

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Short summary
Numerical models used in weather and climate research and prediction unavoidably contain numerical errors resulting from temporal discretization, and the impact of such errors can be substantial. Complex process interactions often make it difficult to pinpoint the exact sources of such errors. This study uses a series of sensitivity experiments to identify components in a global atmosphere model that are responsible for time step sensitivities in various cloud regimes.