Unknown
In:
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Publication Date:
2023-08-02
Description:
The El Niño-Southern Oscillation (ENSO) influences climate on a global scale and is a source of long-range predictability. In order to harness this predictability, accurate model representation of relevant teleconnections and the processes that generate them is required. We use a set of CMIP6 models to assess the effect of increasing model resolution on ENSO and its boreal winter teleconnections. The spatial structure, strength and asymmetry of both ENSO and its extratropical teleconnections are considered. We find evidence of an improved El Niño teleconnection to the North Pacific in high resolution models, but this improvement is dampened for La Niña. We aim to establish whether ocean or atmospheric resolution is the primary driver of resolution-based trends, and we evaluate the relevance of mean state biases on these trends.
Language:
English
Type:
info:eu-repo/semantics/conferenceObject
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