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Strong Oceanic Forcing on Decadal Surface Temperature Variability Over Global Ocean
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2024
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Source: Geophysical Research Letters, 51(8)
[PDF-7.57 MB]
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Journal Title:Geophysical Research Letters
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Description:Sea surface temperature (SST) variability on decadal timescales has been associated with global and regional climate variability and impacts. The mechanisms that drive decadal SST variability, however, remain highly uncertain. Many previous studies have examined the role of atmospheric variability in driving decadal SST variations. Here we assess the strength of oceanic forcing in driving decadal SST variability in observations and state‐of‐the‐art climate models by analyzing the relationship between surface heat flux and SST. We find a largely similar pattern of decadal oceanic forcing across all ocean basins, characterized by oceanic forcing about twice the strength of the atmospheric forcing in the mid‐ and high latitude regions, but comparable or weaker than the atmospheric forcing in the subtropics. The decadal oceanic forcing is hypothesized to be associated with the wind‐driven oceanic circulation, which is common across all ocean basins.
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Source:Geophysical Research Letters, 51(8)
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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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