The dynamical impact of Rossby wave breaking upon UK PM10 concentration

Coarse particulate matter (PM10) has long been understood to be hazardous to human health, with mortality rates increasing as a result of raised ground level concentrations. We explore the influence of synoptic-scale meteorology on daily mean observed PM10 concentration ([PM10]) using Rossby wave br...

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Published in:Atmospheric Chemistry and Physics
Main Authors: Webber, Christopher P., Dacre, Helen F., Collins, William J., Masato, Giacomo
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2017
Subjects:
Online Access:https://doi.org/10.5194/acp-17-867-2017
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spelling ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00042765 2023-05-15T17:41:33+02:00 The dynamical impact of Rossby wave breaking upon UK PM10 concentration Webber, Christopher P. Dacre, Helen F. Collins, William J. Masato, Giacomo 2017-01 electronic https://doi.org/10.5194/acp-17-867-2017 https://noa.gwlb.de/receive/cop_mods_00042765 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042385/acp-17-867-2017.pdf https://acp.copernicus.org/articles/17/867/2017/acp-17-867-2017.pdf eng eng Copernicus Publications Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324 https://doi.org/10.5194/acp-17-867-2017 https://noa.gwlb.de/receive/cop_mods_00042765 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042385/acp-17-867-2017.pdf https://acp.copernicus.org/articles/17/867/2017/acp-17-867-2017.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2017 ftnonlinearchiv https://doi.org/10.5194/acp-17-867-2017 2022-02-08T22:40:55Z Coarse particulate matter (PM10) has long been understood to be hazardous to human health, with mortality rates increasing as a result of raised ground level concentrations. We explore the influence of synoptic-scale meteorology on daily mean observed PM10 concentration ([PM10]) using Rossby wave breaking (RWB). Meteorological reanalysis data for the winter months (DJF) between January 1999 and December 2008 and observed PM10 data for three urban background UK (Midland) sites were analysed. Three RWB diagnostics were used to identify RWB that had significant influence on UK Midland PM10. RWB events were classified according to whether the RWB was cyclonic or anticyclonic in its direction of breaking and whether the RWB event was influenced more by poleward or equatorial air masses. We find that there is a strong link between RWB events and UK [PM10]. Significant increases (p < 0.01) in UK [PM10] were seen 1 day following RWB occurring in spatially constrained northeast Atlantic–European regions. Analysis into episodic PM10 exceedance events shows increased probability of [PM10] exceedance associated with all RWB subsets. The greatest probability of exceeding the UK [PM10] threshold was associated with cyclonic RWB preceded by anticyclonic RWB forming an Ω block synoptic pattern. This mechanism suggests an easterly advection of European PM10 followed by prolonged stagnant conditions within the UK and led to an almost threefold increase in the probability of the UK Midlands exceeding a hazardous [PM10] threshold (0.383), when compared to days where no RWB was detected (0.129). Article in Journal/Newspaper Northeast Atlantic Niedersächsisches Online-Archiv NOA Midland ENVELOPE(8.224,8.224,63.072,63.072) Atmospheric Chemistry and Physics 17 2 867 881
institution Open Polar
collection Niedersächsisches Online-Archiv NOA
op_collection_id ftnonlinearchiv
language English
topic article
Verlagsveröffentlichung
spellingShingle article
Verlagsveröffentlichung
Webber, Christopher P.
Dacre, Helen F.
Collins, William J.
Masato, Giacomo
The dynamical impact of Rossby wave breaking upon UK PM10 concentration
topic_facet article
Verlagsveröffentlichung
description Coarse particulate matter (PM10) has long been understood to be hazardous to human health, with mortality rates increasing as a result of raised ground level concentrations. We explore the influence of synoptic-scale meteorology on daily mean observed PM10 concentration ([PM10]) using Rossby wave breaking (RWB). Meteorological reanalysis data for the winter months (DJF) between January 1999 and December 2008 and observed PM10 data for three urban background UK (Midland) sites were analysed. Three RWB diagnostics were used to identify RWB that had significant influence on UK Midland PM10. RWB events were classified according to whether the RWB was cyclonic or anticyclonic in its direction of breaking and whether the RWB event was influenced more by poleward or equatorial air masses. We find that there is a strong link between RWB events and UK [PM10]. Significant increases (p < 0.01) in UK [PM10] were seen 1 day following RWB occurring in spatially constrained northeast Atlantic–European regions. Analysis into episodic PM10 exceedance events shows increased probability of [PM10] exceedance associated with all RWB subsets. The greatest probability of exceeding the UK [PM10] threshold was associated with cyclonic RWB preceded by anticyclonic RWB forming an Ω block synoptic pattern. This mechanism suggests an easterly advection of European PM10 followed by prolonged stagnant conditions within the UK and led to an almost threefold increase in the probability of the UK Midlands exceeding a hazardous [PM10] threshold (0.383), when compared to days where no RWB was detected (0.129).
format Article in Journal/Newspaper
author Webber, Christopher P.
Dacre, Helen F.
Collins, William J.
Masato, Giacomo
author_facet Webber, Christopher P.
Dacre, Helen F.
Collins, William J.
Masato, Giacomo
author_sort Webber, Christopher P.
title The dynamical impact of Rossby wave breaking upon UK PM10 concentration
title_short The dynamical impact of Rossby wave breaking upon UK PM10 concentration
title_full The dynamical impact of Rossby wave breaking upon UK PM10 concentration
title_fullStr The dynamical impact of Rossby wave breaking upon UK PM10 concentration
title_full_unstemmed The dynamical impact of Rossby wave breaking upon UK PM10 concentration
title_sort dynamical impact of rossby wave breaking upon uk pm10 concentration
publisher Copernicus Publications
publishDate 2017
url https://doi.org/10.5194/acp-17-867-2017
https://noa.gwlb.de/receive/cop_mods_00042765
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042385/acp-17-867-2017.pdf
https://acp.copernicus.org/articles/17/867/2017/acp-17-867-2017.pdf
long_lat ENVELOPE(8.224,8.224,63.072,63.072)
geographic Midland
geographic_facet Midland
genre Northeast Atlantic
genre_facet Northeast Atlantic
op_relation Atmospheric Chemistry and Physics -- http://www.atmos-chem-phys.net/volumes_and_issues.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2069847 -- 1680-7324
https://doi.org/10.5194/acp-17-867-2017
https://noa.gwlb.de/receive/cop_mods_00042765
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00042385/acp-17-867-2017.pdf
https://acp.copernicus.org/articles/17/867/2017/acp-17-867-2017.pdf
op_rights uneingeschränkt
info:eu-repo/semantics/openAccess
op_doi https://doi.org/10.5194/acp-17-867-2017
container_title Atmospheric Chemistry and Physics
container_volume 17
container_issue 2
container_start_page 867
op_container_end_page 881
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