Articles | Volume 24, issue 3
https://doi.org/10.5194/acp-24-1641-2024
https://doi.org/10.5194/acp-24-1641-2024
Research article
 | 
06 Feb 2024
Research article |  | 06 Feb 2024

Quantifying the contribution of atmospheric circulation to precipitation variability and changes in the US Great Plains and southwest using self-organizing map–analogue

Yizhou Zhuang and Rong Fu

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Short summary
This study investigated how atmospheric circulation affects precipitation variability and changes in the US Great Plains (GP) and southwest (SW). By developing a new method called self organizing map–analogue, we found that circulation significantly influences short-term precipitation variability, accounting for 54 %–61 % of the total variance. Furthermore, circulation contributes considerably to the multi-decadal changes in precipitation and its extremes, especially for the southern GP and SW.
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