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Workshop: Tackling Climate Change with Machine Learning

An Unsupervised Learning Perspective on the Dynamic Contribution to Extreme Precipitation Changes

Griffin Mooers · Tom Beucler · Mike Pritchard · Stephan Mandt


Despite the importance of quantifying how the spatial patterns of extreme precipitation will change with warming, we lack tools to objectively analyze the storm-scale outputs of modern climate models. To address this gap, we develop an unsupervised machine learning framework to quantify how storm dynamics affect precipitation extremes and their changes without sacrificing spatial information. Over a wide range of precipitation quantiles, we find that the spatial patterns of extreme precipitation changes are dominated by spatial shifts in storm regimes rather than intrinsic changes in how these storm regimes produce precipitation.

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