Weather and Climate Dynamics
Weather and Climate Dynamics
WCD
Articles | Volume 7, issue 3
Articles | Volume 7, issue 3
https://doi.org/10.5194/wcd-7-1547-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-7-1547-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 7, issue 3
Research article
 | 
28 Aug 2026
Research article |  | 28 Aug 2026

Explaining monthly precipitation anomalies in northwestern South America by integrating vertical dynamics and energetics

Jose Obregon-Yataco

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Short summary
Standard weather indices often fail to predict rainfall extremes in northwestern South America during El Niño events. To fix this, we developed the Buoyancy Work Rate, a new indicator combining heat energy with vertical air movement. Our analysis proves this method filters out false alarms, explaining why some warm years are dry while others cause massive floods. This provides a more reliable tool for early warning systems and disaster risk reduction in vulnerable coastal regions.
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