Articles | Volume 13, issue 2
https://doi.org/10.5194/gmd-13-717-2020
https://doi.org/10.5194/gmd-13-717-2020
Development and technical paper
 | 
24 Feb 2020
Development and technical paper |  | 24 Feb 2020

A comprehensive assessment of tropical stratospheric upwelling in the specified dynamics Community Earth System Model 1.2.2 – Whole Atmosphere Community Climate Model (CESM (WACCM))

Nicholas A. Davis, Sean M. Davis, Robert W. Portmann, Eric Ray, Karen H. Rosenlof, and Pengfei Yu

Data sets

MERRA2 NASA’s Global Modeling and Assimilation Office https://gmao.gsfc.nasa.gov/reanalysis/

Model code and software

Source code modifications for CESM1.2.2 Nicholas A. Davis https://doi.org/10.5281/zenodo.3376232

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Short summary
Large-scale waves drive upward motion in the tropical stratosphere, with major impacts on stratospheric chemistry and climate. However, some of the modeling methods which attempt to simulate the past evolution of the stratosphere do not seem to be able to recreate important trends. We believe this is due to disagreements between the basic climate of the model and observations, but if the method is constructed more carefully, the disagreement becomes smaller and the trends become more realistic.