Tracking Shallow Convective Mixing and Its Influence on Low-Level Clouds With Stable Water Isotopes in Vapor

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dc.citation.articleNumbere2021JD035355en_US
dc.citation.issueNumber5en_US
dc.citation.journalTitleJGR Atmospheresen_US
dc.citation.volumeNumber127en_US
dc.contributor.authorHu, Junen_US
dc.contributor.authorBailey, Adrianaen_US
dc.contributor.authorNusbaumer, Jesseen_US
dc.contributor.authorDee, Sylviaen_US
dc.contributor.authorSasser,Christianaen_US
dc.contributor.authorWorden, Johnen_US
dc.date.accessioned2022-04-18T17:17:28Zen_US
dc.date.available2022-04-18T17:17:28Zen_US
dc.date.issued2022en_US
dc.description.abstractLow-cloud feedbacks contribute large uncertainties to climate projections and estimated climate sensitivity. A key physical process modulating low-cloud feedbacks is shallow convective mixing between the boundary layer and the free troposphere. However, there are challenges in acquiring observational constraints of shallow convective mixing with global coverage. To this end, we propose a novel approach to constraining convective mixing using stable water vapor isotope profiles from satellite retrievals. We demonstrate that the vertical gradient of water vapor δD between the boundary layer and free troposphere can be used to track shallow convective mixing. Analyzing isotopes in water vapor alongside low-cloud properties from satellite retrievals, we find that low-cloud fraction appears largely insensitive to convective mixing in shallow cumulus regions. Our results also suggest that strong shallow convective mixing is associated with the moistening of the free troposphere. The new estimate of shallow convective mixing and its relationship with low-cloud properties offers a potential constraint on simulations of low-cloud feedbacks and estimates of climate sensitivity.en_US
dc.identifier.citationHu, Jun, Bailey, Adriana, Nusbaumer, Jesse, et al.. "Tracking Shallow Convective Mixing and Its Influence on Low-Level Clouds With Stable Water Isotopes in Vapor." <i>JGR Atmospheres,</i> 127, no. 5 (2022) Wiley: https://doi.org/10.1029/2021JD035355.en_US
dc.identifier.doihttps://doi.org/10.1029/2021JD035355en_US
dc.identifier.urihttps://hdl.handle.net/1911/112103en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleTracking Shallow Convective Mixing and Its Influence on Low-Level Clouds With Stable Water Isotopes in Vaporen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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