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Investigating Large-Scale Conditions Associated with Transitions Between Precipitation Extremes in the Midwest
Topics: Climatology and Meteorology
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Keywords: climate extremes, precipitation, flood, drought, Midwest Session Type: Virtual Paper Abstract Day: Sunday Session Start / End Time: 2/27/2022 08:00 AM (Eastern Time (US & Canada)) - 2/27/2022 09:20 AM (Eastern Time (US & Canada)) Room: Virtual 47
Authors:
Liang W. Chen, Illinois State Water Survey
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Abstract
Monthly to seasonal precipitation extremes, leading to either flood or drought, are important components of regional climates worldwide, and are the subjects of numerous investigations. Recent studies show that the Midwest United States as a region has experienced a significant increase in the annual range between wet and dry extremes, driven by much larger increases in the former than the latter. Additionally, transitions between wet and dry extremes have largely increased in speed. In this study we use synoptic classification with machine learning to analyze large-scale circulation patterns associated with precipitation extremes in the Midwest, and explore the dynamic and thermodynamic drivers of the apparent trends in transitions between precipitation extremes.
Investigating Large-Scale Conditions Associated with Transitions Between Precipitation Extremes in the Midwest
