A New Lens for Evaluating Dynamic Controls on Shallow Convection

Abstract Rising temperatures and changing dynamics can both moisten the air, making it difficult to disentangle these interrelated drivers of water cycle change. However, work by Camille Risi and colleagues presents a new way to distinguish their effects. Using large‐eddy simulations with water isot...

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Autor principal:	Adriana Bailey
Formato:	article
Lenguaje:	EN
Publicado:	American Geophysical Union (AGU) 2020
Materias:	water isotope tropical convection large‐eddy simulation sub‐cloud layer moisture flux convergence amount effect Physical geography GB3-5030 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/13b2151435cd43b89730c9582a0576e9
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id	oai:doaj.org-article:13b2151435cd43b89730c9582a0576e9
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spelling	oai:doaj.org-article:13b2151435cd43b89730c9582a0576e92021-11-15T14:20:26ZA New Lens for Evaluating Dynamic Controls on Shallow Convection1942-246610.1029/2020MS002249https://doaj.org/article/13b2151435cd43b89730c9582a0576e92020-08-01T00:00:00Zhttps://doi.org/10.1029/2020MS002249https://doaj.org/toc/1942-2466Abstract Rising temperatures and changing dynamics can both moisten the air, making it difficult to disentangle these interrelated drivers of water cycle change. However, work by Camille Risi and colleagues presents a new way to distinguish their effects. Using large‐eddy simulations with water isotopic tracers, they show that while warming the sea surface increases the ratio of isotopically heavy‐to‐light water in the tropical marine subcloud layer, strengthening the moisture flux convergence decreases it. This divergent response provides a new framework for examining the complex mechanisms that regulate the development of convection and, ultimately, cloudiness—a target of the 2020 international field campaign EUREC4A (ElUcidating the RolE of Clouds‐Circulation Coupling in ClimAte). Moreover, their findings provide a clearer picture of why water isotopes recorded in tropical paleoproxies are a valuable lens through which to view changes in moisture transport in the past.Adriana BaileyAmerican Geophysical Union (AGU)articlewater isotopetropical convectionlarge‐eddy simulationsub‐cloud layermoisture flux convergenceamount effectPhysical geographyGB3-5030OceanographyGC1-1581ENJournal of Advances in Modeling Earth Systems, Vol 12, Iss 8, Pp n/a-n/a (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	water isotope tropical convection large‐eddy simulation sub‐cloud layer moisture flux convergence amount effect Physical geography GB3-5030 Oceanography GC1-1581
spellingShingle	water isotope tropical convection large‐eddy simulation sub‐cloud layer moisture flux convergence amount effect Physical geography GB3-5030 Oceanography GC1-1581 Adriana Bailey A New Lens for Evaluating Dynamic Controls on Shallow Convection
description	Abstract Rising temperatures and changing dynamics can both moisten the air, making it difficult to disentangle these interrelated drivers of water cycle change. However, work by Camille Risi and colleagues presents a new way to distinguish their effects. Using large‐eddy simulations with water isotopic tracers, they show that while warming the sea surface increases the ratio of isotopically heavy‐to‐light water in the tropical marine subcloud layer, strengthening the moisture flux convergence decreases it. This divergent response provides a new framework for examining the complex mechanisms that regulate the development of convection and, ultimately, cloudiness—a target of the 2020 international field campaign EUREC4A (ElUcidating the RolE of Clouds‐Circulation Coupling in ClimAte). Moreover, their findings provide a clearer picture of why water isotopes recorded in tropical paleoproxies are a valuable lens through which to view changes in moisture transport in the past.
format	article
author	Adriana Bailey
author_facet	Adriana Bailey
author_sort	Adriana Bailey
title	A New Lens for Evaluating Dynamic Controls on Shallow Convection
title_short	A New Lens for Evaluating Dynamic Controls on Shallow Convection
title_full	A New Lens for Evaluating Dynamic Controls on Shallow Convection
title_fullStr	A New Lens for Evaluating Dynamic Controls on Shallow Convection
title_full_unstemmed	A New Lens for Evaluating Dynamic Controls on Shallow Convection
title_sort	new lens for evaluating dynamic controls on shallow convection
publisher	American Geophysical Union (AGU)
publishDate	2020
url	https://doaj.org/article/13b2151435cd43b89730c9582a0576e9
work_keys_str_mv	AT adrianabailey anewlensforevaluatingdynamiccontrolsonshallowconvection AT adrianabailey newlensforevaluatingdynamiccontrolsonshallowconvection
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A New Lens for Evaluating Dynamic Controls on Shallow Convection

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