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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F11%3A10103882%21RIV12-MSM-11320___
rdf:type
n8:Vysledek skos:Concept
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S1352231011009332
dcterms:description
This study aims to evaluate near surface ozone simulated with the modelling system RegCM3/CAMx against ozone measurements from the EMEP database for the recent decade 1991-2000. The RegCM3/CAMx simulations were performed on a 50 km x 50 km grid over Europe driven either by ERA-40 reanalysis (hereafter referred as ERA simulation) or the global circulation model (GCM) ECHAM5 (hereafter referred as ECHAM simulation). A set of statistical metrics is used for the model evaluation, including temporal correlation coefficient, the ratio of the standard deviations and the bias of simulated versus observed values. Overall, a good agreement is found for both ERA and ECHAM simulations at the majority of the selected EMEP stations in all metrics throughout the year based either on monthly or daily ozone values. Based on these results, it is assessed that the modelling system RegCM3/CAMx is suitable to be used for present and future regional climate-air quality simulations with emphasis on near surface ozone. The ERA simulations reproduce more accurately the observed ozone values in comparison to ECHAM simulations because the meteorology of the ERA experiment is closer to real atmospheric conditions than the GCM based experiment. On a seasonal basis, both ERA and ECHAM simulations exhibit a seasonally dependent bias, with winter and spring ozone values being generally underestimated by the model and summer and autumn values being slightly overestimated. This seasonally dependent bias is also evident from median and peak midday ozone values. However, the highest observed midday ozone peaks in summer, with values higher than 80 ppbv, could not be captured either by ERA or ECHAM simulations. An analysis of day-time and night-time ERA and ECHAM modelled ozone values shows that CAMx performs better during the day-time. This study aims to evaluate near surface ozone simulated with the modelling system RegCM3/CAMx against ozone measurements from the EMEP database for the recent decade 1991-2000. The RegCM3/CAMx simulations were performed on a 50 km x 50 km grid over Europe driven either by ERA-40 reanalysis (hereafter referred as ERA simulation) or the global circulation model (GCM) ECHAM5 (hereafter referred as ECHAM simulation). A set of statistical metrics is used for the model evaluation, including temporal correlation coefficient, the ratio of the standard deviations and the bias of simulated versus observed values. Overall, a good agreement is found for both ERA and ECHAM simulations at the majority of the selected EMEP stations in all metrics throughout the year based either on monthly or daily ozone values. Based on these results, it is assessed that the modelling system RegCM3/CAMx is suitable to be used for present and future regional climate-air quality simulations with emphasis on near surface ozone. The ERA simulations reproduce more accurately the observed ozone values in comparison to ECHAM simulations because the meteorology of the ERA experiment is closer to real atmospheric conditions than the GCM based experiment. On a seasonal basis, both ERA and ECHAM simulations exhibit a seasonally dependent bias, with winter and spring ozone values being generally underestimated by the model and summer and autumn values being slightly overestimated. This seasonally dependent bias is also evident from median and peak midday ozone values. However, the highest observed midday ozone peaks in summer, with values higher than 80 ppbv, could not be captured either by ERA or ECHAM simulations. An analysis of day-time and night-time ERA and ECHAM modelled ozone values shows that CAMx performs better during the day-time.
dcterms:title
Evaluation of near surface ozone in air quality simulations forced by a regional climate model over Europe for the period 1991-2000 Evaluation of near surface ozone in air quality simulations forced by a regional climate model over Europe for the period 1991-2000
skos:prefLabel
Evaluation of near surface ozone in air quality simulations forced by a regional climate model over Europe for the period 1991-2000 Evaluation of near surface ozone in air quality simulations forced by a regional climate model over Europe for the period 1991-2000
skos:notation
RIV/00216208:11320/11:10103882!RIV12-MSM-11320___
n8:predkladatel
n10:orjk%3A11320
n3:aktivita
n18:Z
n3:aktivity
Z(MSM0021620860)
n3:cisloPeriodika
45
n3:dodaniDat
n12:2012
n3:domaciTvurceVysledku
n16:8002002
n3:druhVysledku
n19:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
198327
n3:idVysledku
RIV/00216208:11320/11:10103882
n3:jazykVysledku
n14:eng
n3:klicovaSlova
period 1991-2000; Europe; regional climate model; air quality; near surface ozone; Evaluation
n3:klicoveSlovo
n4:near%20surface%20ozone n4:period%201991-2000 n4:Europe n4:air%20quality n4:regional%20climate%20model n4:Evaluation
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[734C87EC1D07]
n3:nazevZdroje
Atmospheric Environment
n3:obor
n13:DG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
7
n3:rokUplatneniVysledku
n12:2011
n3:svazekPeriodika
2011
n3:tvurceVysledku
Tegoulias, Ionnas Katragkou, Eleni Zanis, Prodromos Poupkou, Anastasia Melas, Dimitrios Giorgi, Filippo Huszár, Peter
n3:wos
000296220200001
n3:zamer
n20:MSM0021620860
s:issn
1352-2310
s:numberOfPages
12
n15:doi
10.1016/j.atmosenv.2011.09.001
n9:organizacniJednotka
11320