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Detecting shifts in tropical moisture imbalances with satellite‐derived isotope ratios in water vapor
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2017
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Source: Journal of Geophysical Research: Atmospheres, 122(11), 5763-5779
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Journal Title:Journal of Geophysical Research: Atmospheres
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Description:As global temperatures rise, regional differences in evaporation ( E) and precipitation ( P) are likely to become more disparate, causing the drier E-dominated regions of the tropics to become drier and the wetter P-dominated regions to become wetter. Models suggest that such intensi fication of the water cycle should already be taking place; however, quantitatively verifying these changes is complicated by inherent difficulties in measuring EandPwith suf ficient spatial coverage and resolution. This paper presents a new metric for tracking changes in regional moisture imbalances (e.g., E-P)b yd e fining δDq—the isotope ratio normalized to a reference water vapor concentration of 4 mmol mol/C01—and evaluates its ef ficacy using both
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Source:Journal of Geophysical Research: Atmospheres, 122(11), 5763-5779
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ISSN:2169-897X;2169-8996;
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Rights Information:Other
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Compliance:Library
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