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Mesoscale convective clustering enhances tropical precipitation
Cited 5 time in
Web of Science
Cited 6 time in Scopus
- Authors
- Issue Date
- 2023-01
- Citation
- Science Advances, Vol.9 No.2, p. eabo531
- Abstract
- In the tropics, extreme precipitation events are often caused by mesoscale systems of organized, spatially clustered deep cumulonimbi, posing a substantial risk to life and property. While the clustering of convective clouds has been thought to strengthen precipitation rate, no quantitative estimates of this hypothesized enhancement exist. In this study, after isolating the effects of mesoscale convective clustering on precipitation, we find that strongly clustered oceanic convection precipitates more intensely than weakly clustered convection. We further show that this enhancement is primarily attributable to an increase in convective precipitation rate when the environment is less than 70% saturated, with increases in the size of the rainy stratiform region being of equal or greater importance when the environment is closer to saturation. Our results suggest that a correct representation of mesoscale organized convective systems in numerical weather and climate models is needed for accurate predictions of extreme precipitation events.
- ISSN
- 2375-2548
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Related Researcher
- College of Natural Sciences
- Department of Earth and Environmental Sciences
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