Ozone forcing in CMIP7 #22
JamesAnstey
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The CMIP6 historical experiment ozone forcing included a quasi-biennial oscillation (QBO) component in the stratosphere. This paper shows that the QBO (equatorial stratospheric zonal-mean zonal wind) tends to synchronize across realizations when a model uses this forcing, and doesn't synchronize for models using prognostic ozone.
The question for discussion here is: should the CMIP7 ozone forcing include imposed interannual variability in ozone (as the CMIP6 forcing did), or should the QBO signal in ozone be removed?
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