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How a Stable Greenhouse Effect on Earth Is Maintained Under Global Warming
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2023
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Source: Journal of Geophysical Research: Atmospheres, 128(9)
[PDF-2.14 MB]
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Journal Title:Journal of Geophysical Research: Atmospheres
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Description:In a warming climate, greenhouse gases modulate thermal cooling to space from the surface and atmosphere, which is a fundamental feedback process that affects climate sensitivity. Recent studies have found that when relative humidity (RH) is constant with global warming, Earth's clear-sky longwave feedback would be dominated by surface cooling to space. Using a millennium-length coupled general circulation model and accurate line-by-line radiative transfer calculations, here we show that the atmospheric cooling to space accounts for 12%–50% of the feedback parameter from poles to tropics. A simple yet comprehensive model is proposed here for explaining the atmospheric feedback process. It is found that when RH is held constant,
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Source:Journal of Geophysical Research: Atmospheres, 128(9)
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DOI:
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ISSN:2169-897X;2169-8996;
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Rights Information:CC BY-NC-ND
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Compliance:Library
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