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Significant Increase in Sea Surface Temperature at the Genesis of Tropical Mesoscale Convective Systems
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2022
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Source: Geophysical Research Letters, 49(24)
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Journal Title:Geophysical Research Letters
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Description:An event-based assessment of the sea surface temperature (SST) threshold at the genesis of tropical mesoscale convective systems (MCSs) is performed in this study. We show that this threshold (SSTG) has undergone a significant warming trend at a rate of ∼0.2°C per decade. The SSTG shows a remarkable correspondence with the tropical mean SST and upper-tropospheric temperature on interannual and longer timescales. Using a high-resolution global climate model that permits realistic simulations of tropical MCSs, we find that the observed features of SSTG are well simulated. Both observation and model simulations demonstrate that the upward tendency in SSTG primarily results from the environmental SST warming over
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Source:Geophysical Research Letters, 49(24)
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ISSN:0094-8276;1944-8007;
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Rights Information:CC BY
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Compliance:Library
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