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Surface ozone concentration trends and its relationship with weather types in Spain (2001-2010)

This paper assesses the temporal variations of surface ozone concentrations during the period 2001-2010 in 3 regions of Spain with different geographical and socioeconomic features (northern coastland, central inland and northeast inland), as well as its link with atmospheric circulation. Specifically, daily surface atmospheric patterns over the aforementioned regions are characterized using NCEP/NCAR reanalysis data and an objective classification scheme in order to study the relationship between synoptic weather types and daily ozone levels. The results show that tropospheric ozone concentration has a tendency towards an increase during the study period, both during daytime and nighttime. Moreover, in general, this upward trend is seen throughout all of the seasons. The observed trends are in line with a reported decrease of NOX emissions and increase in surface solar radiation during the 2000s in Spain. On the other hand, interestingly, median concentrations were statistically significantly lower in days with anticyclonic weather conditions than in the rest of meteorological situations, while days with a directional weather type showed higher median levels of ozone concentration, with maximum values in days with northern and eastern component. Due to the detrimental effect that ozone has on human health, the relationship between synoptic weather patterns and daily ozone levels shown in this work could potentially be used for implementing pollution level alert protocols depending on forecast weather types

This work has also been partially funded by Fundacion Mapfre and by project HIDROCAES (CGL2011-27574-C02-01). A. Sanchez-Lorenzo was supported by the Postdoctoral Fellowships 2011-BP-B-00078 and JCI-2012-12508, and the Spanish Ministry of Science and Innovation Project CGL2010-18546

© Atmospheric Environment, 2015, vol. 101, p. 10-22

Elsevier

Author: Santurtún, Ana
González-Hidalgo, José Carlos
Sánchez Lorenzo, Arturo
Zarrabeitia, María Teresa
Date: 2015
Abstract: This paper assesses the temporal variations of surface ozone concentrations during the period 2001-2010 in 3 regions of Spain with different geographical and socioeconomic features (northern coastland, central inland and northeast inland), as well as its link with atmospheric circulation. Specifically, daily surface atmospheric patterns over the aforementioned regions are characterized using NCEP/NCAR reanalysis data and an objective classification scheme in order to study the relationship between synoptic weather types and daily ozone levels. The results show that tropospheric ozone concentration has a tendency towards an increase during the study period, both during daytime and nighttime. Moreover, in general, this upward trend is seen throughout all of the seasons. The observed trends are in line with a reported decrease of NOX emissions and increase in surface solar radiation during the 2000s in Spain. On the other hand, interestingly, median concentrations were statistically significantly lower in days with anticyclonic weather conditions than in the rest of meteorological situations, while days with a directional weather type showed higher median levels of ozone concentration, with maximum values in days with northern and eastern component. Due to the detrimental effect that ozone has on human health, the relationship between synoptic weather patterns and daily ozone levels shown in this work could potentially be used for implementing pollution level alert protocols depending on forecast weather types
This work has also been partially funded by Fundacion Mapfre and by project HIDROCAES (CGL2011-27574-C02-01). A. Sanchez-Lorenzo was supported by the Postdoctoral Fellowships 2011-BP-B-00078 and JCI-2012-12508, and the Spanish Ministry of Science and Innovation Project CGL2010-18546
Format: application/pdf
ISSN: 1352-2310
Document access: http://hdl.handle.net/10256/11848
Language: eng
Publisher: Elsevier
Collection: MICINN/PN 2011-2014/CGL2010-18546
SUR/2011 BP-B 00078
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.atmosenv.2014.11.005
Articles publicats (D-F)
Is part of: © Atmospheric Environment, 2015, vol. 101, p. 10-22
Rights: Tots els drets reservats
Subject: Ozó atmosfèric -- Espanya
Atmospheric ozone -- Spain
Aire -- Contaminació -- Espanya
Air -- Pollution -- Spain
Title: Surface ozone concentration trends and its relationship with weather types in Spain (2001-2010)
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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