Implementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.1

Abstract Elevated concentrations of atmospheric bromine are known to cause ozone depletion in the Arctic, which is most frequently observed during springtime. We implement a detailed description of bromine and chlorine chemistry within the WRF‐Chem 4.1.1 model, and two different descriptions of Arct...

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Autores principales:	Louis Marelle, Jennie L. Thomas, Shaddy Ahmed, Katie Tuite, Jochen Stutz, Aurélien Dommergue, William R. Simpson, Markus M. Frey, Foteini Baladima
Formato:	article
Lenguaje:	EN
Publicado:	American Geophysical Union (AGU) 2021
Materias:	aerosol chemistry arctic ozone atmospheric chemistry halogen chemistry snow emissions Physical geography GB3-5030 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/a00b345f0d204749ada18811a53150f4
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spelling	oai:doaj.org-article:a00b345f0d204749ada18811a53150f42021-11-12T07:13:23ZImplementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.11942-246610.1029/2020MS002391https://doaj.org/article/a00b345f0d204749ada18811a53150f42021-08-01T00:00:00Zhttps://doi.org/10.1029/2020MS002391https://doaj.org/toc/1942-2466Abstract Elevated concentrations of atmospheric bromine are known to cause ozone depletion in the Arctic, which is most frequently observed during springtime. We implement a detailed description of bromine and chlorine chemistry within the WRF‐Chem 4.1.1 model, and two different descriptions of Arctic bromine activation: (1) heterogeneous chemistry on surface snow on sea ice, triggered by ozone deposition to snow (Toyota et al., 2011 https://doi.org/10.5194/acp-11-3949-2011), and (2) heterogeneous reactions on sea salt aerosols emitted through the sublimation of lofted blowing snow (Yang et al., 2008, https://doi.org/10.1029/2008gl034536). In both mechanisms, bromine activation is sustained by heterogeneous reactions on aerosols and surface snow. Simulations for spring 2012 covering the entire Arctic reproduce frequent and widespread ozone depletion events, and comparisons with observations of ozone show that these developments significantly improve model predictions during the Arctic spring. Simulations show that ozone depletion events can be initiated by both surface snow on sea ice, or by aerosols that originate from blowing snow. On a regional scale, in spring 2012, snow on sea ice dominates halogen activation and ozone depletion at the surface. During this period, blowing snow is a major source of Arctic sea salt aerosols but only triggers a few depletion events.Louis MarelleJennie L. ThomasShaddy AhmedKatie TuiteJochen StutzAurélien DommergueWilliam R. SimpsonMarkus M. FreyFoteini BaladimaAmerican Geophysical Union (AGU)articleaerosol chemistryarctic ozoneatmospheric chemistryhalogen chemistrysnow emissionsPhysical geographyGB3-5030OceanographyGC1-1581ENJournal of Advances in Modeling Earth Systems, Vol 13, Iss 8, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aerosol chemistry arctic ozone atmospheric chemistry halogen chemistry snow emissions Physical geography GB3-5030 Oceanography GC1-1581
spellingShingle	aerosol chemistry arctic ozone atmospheric chemistry halogen chemistry snow emissions Physical geography GB3-5030 Oceanography GC1-1581 Louis Marelle Jennie L. Thomas Shaddy Ahmed Katie Tuite Jochen Stutz Aurélien Dommergue William R. Simpson Markus M. Frey Foteini Baladima Implementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.1
description	Abstract Elevated concentrations of atmospheric bromine are known to cause ozone depletion in the Arctic, which is most frequently observed during springtime. We implement a detailed description of bromine and chlorine chemistry within the WRF‐Chem 4.1.1 model, and two different descriptions of Arctic bromine activation: (1) heterogeneous chemistry on surface snow on sea ice, triggered by ozone deposition to snow (Toyota et al., 2011 https://doi.org/10.5194/acp-11-3949-2011), and (2) heterogeneous reactions on sea salt aerosols emitted through the sublimation of lofted blowing snow (Yang et al., 2008, https://doi.org/10.1029/2008gl034536). In both mechanisms, bromine activation is sustained by heterogeneous reactions on aerosols and surface snow. Simulations for spring 2012 covering the entire Arctic reproduce frequent and widespread ozone depletion events, and comparisons with observations of ozone show that these developments significantly improve model predictions during the Arctic spring. Simulations show that ozone depletion events can be initiated by both surface snow on sea ice, or by aerosols that originate from blowing snow. On a regional scale, in spring 2012, snow on sea ice dominates halogen activation and ozone depletion at the surface. During this period, blowing snow is a major source of Arctic sea salt aerosols but only triggers a few depletion events.
format	article
author	Louis Marelle Jennie L. Thomas Shaddy Ahmed Katie Tuite Jochen Stutz Aurélien Dommergue William R. Simpson Markus M. Frey Foteini Baladima
author_facet	Louis Marelle Jennie L. Thomas Shaddy Ahmed Katie Tuite Jochen Stutz Aurélien Dommergue William R. Simpson Markus M. Frey Foteini Baladima
author_sort	Louis Marelle
title	Implementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.1
title_short	Implementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.1
title_full	Implementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.1
title_fullStr	Implementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.1
title_full_unstemmed	Implementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.1
title_sort	implementation and impacts of surface and blowing snow sources of arctic bromine activation within wrf‐chem 4.1.1
publisher	American Geophysical Union (AGU)
publishDate	2021
url	https://doaj.org/article/a00b345f0d204749ada18811a53150f4
work_keys_str_mv	AT louismarelle implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411 AT jennielthomas implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411 AT shaddyahmed implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411 AT katietuite implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411 AT jochenstutz implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411 AT aureliendommergue implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411 AT williamrsimpson implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411 AT markusmfrey implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411 AT foteinibaladima implementationandimpactsofsurfaceandblowingsnowsourcesofarcticbromineactivationwithinwrfchem411
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Implementation and Impacts of Surface and Blowing Snow Sources of Arctic Bromine Activation Within WRF‐Chem 4.1.1

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