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Three Rules for the Decrease of Tropical Convection With Global Warming
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2022
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Source: Journal of Advances in Modeling Earth Systems, 14(11)
[PDF-1.01 MB]
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Journal Title:Journal of Advances in Modeling Earth Systems
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Description:Tropical convection is expected to decrease with warming, in a variety of ways. Specific incarnations of this idea include the “stability-iris” hypothesis of decreasing anvil cloud coverage, as well as the decrease of both tropospheric and cloud-base mass fluxes with warming. This paper seeks to encapsulate these phenomena into three “rules,” and to explore their interrelationships and robustness, using both analytical reasoning as well as cloud-resolving and global climate simulations. We find that each of these rules can be derived analytically from the usual expression for clear-sky subsidence, so they all embody the same essential physics. But, these rules do not all provide the same degree of constraint: the stability-iris effect is not entirely
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Source:Journal of Advances in Modeling Earth Systems, 14(11)
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ISSN:1942-2466;1942-2466;
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Rights Information:CC BY
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