Modeling the meteorological and chemical effects of secondary organic aerosols during an EUCAARI campaign

E. Athanasopoulou, H. Vogel, B. Vogel, A. P. Tsimpidi, S. N. Pandis, C. Knote, Christos Fountoukis

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

A volatility basis set (VBS) approach for the simulation of secondary organic aerosol (SOA) formation is incorporated in the online coupled atmospheric model system COSMO-ART and applied over Europe during the EUCAARI May 2008 campaign. Organic aerosol performance is improved when compared to the default SOA module of COSMO-ART (SORGAM) against high temporal resolution aerosol mass spectrometer ground measurements. The impact of SOA on the overall radiative budget was investigated. The mean direct surface radiative cooling averaged over Europe is-1.2 W m-2, representing approximately 20% of the total effect of aerosols on the radiative budget. However, responses are not spatially correlated with the radiative forcing, due to the nonlinear interactions among changes in particle chemical composition, water content, size distribution and cloud cover. These interactions initiated∼by the effect of SOA on radiation are found to result even in a positive forcing in specific areas. Further model experiments showed that the availability of nitrogen oxides slightly affects SOA production, but that the aging rate constant used in the VBS approximation and boundary concentrations assumed in the model should be carefully selected. The aging of SOA is found to reduce hourly nitrate levels by up to 30%, while the condensation of inorganic species upon pre-existing, SOA-rich particles results in a monthly average increase of 5% in sulfate and ammonium formation in the accumulation mode.

Original languageEnglish
Pages (from-to)625-645
Number of pages21
JournalAtmospheric Chemistry and Physics
Volume13
Issue number2
DOIs
Publication statusPublished - 2013
Externally publishedYes

Fingerprint

aerosol
modeling
effect
chemical
aerosol formation
radiative forcing
nitrogen oxides
cloud cover
condensation
spectrometer
ammonium
chemical composition
water content
sulfate
nitrate
cooling
simulation
experiment

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Modeling the meteorological and chemical effects of secondary organic aerosols during an EUCAARI campaign. / Athanasopoulou, E.; Vogel, H.; Vogel, B.; Tsimpidi, A. P.; Pandis, S. N.; Knote, C.; Fountoukis, Christos.

In: Atmospheric Chemistry and Physics, Vol. 13, No. 2, 2013, p. 625-645.

Research output: Contribution to journalArticle

Athanasopoulou, E. ; Vogel, H. ; Vogel, B. ; Tsimpidi, A. P. ; Pandis, S. N. ; Knote, C. ; Fountoukis, Christos. / Modeling the meteorological and chemical effects of secondary organic aerosols during an EUCAARI campaign. In: Atmospheric Chemistry and Physics. 2013 ; Vol. 13, No. 2. pp. 625-645.
@article{c91cc35461a545dc8b71be5b278c2734,
title = "Modeling the meteorological and chemical effects of secondary organic aerosols during an EUCAARI campaign",
abstract = "A volatility basis set (VBS) approach for the simulation of secondary organic aerosol (SOA) formation is incorporated in the online coupled atmospheric model system COSMO-ART and applied over Europe during the EUCAARI May 2008 campaign. Organic aerosol performance is improved when compared to the default SOA module of COSMO-ART (SORGAM) against high temporal resolution aerosol mass spectrometer ground measurements. The impact of SOA on the overall radiative budget was investigated. The mean direct surface radiative cooling averaged over Europe is-1.2 W m-2, representing approximately 20{\%} of the total effect of aerosols on the radiative budget. However, responses are not spatially correlated with the radiative forcing, due to the nonlinear interactions among changes in particle chemical composition, water content, size distribution and cloud cover. These interactions initiated∼by the effect of SOA on radiation are found to result even in a positive forcing in specific areas. Further model experiments showed that the availability of nitrogen oxides slightly affects SOA production, but that the aging rate constant used in the VBS approximation and boundary concentrations assumed in the model should be carefully selected. The aging of SOA is found to reduce hourly nitrate levels by up to 30{\%}, while the condensation of inorganic species upon pre-existing, SOA-rich particles results in a monthly average increase of 5{\%} in sulfate and ammonium formation in the accumulation mode.",
author = "E. Athanasopoulou and H. Vogel and B. Vogel and Tsimpidi, {A. P.} and Pandis, {S. N.} and C. Knote and Christos Fountoukis",
year = "2013",
doi = "10.5194/acp-13-625-2013",
language = "English",
volume = "13",
pages = "625--645",
journal = "Atmospheric Chemistry and Physics",
issn = "1680-7316",
publisher = "European Geosciences Union",
number = "2",

}

TY - JOUR

T1 - Modeling the meteorological and chemical effects of secondary organic aerosols during an EUCAARI campaign

AU - Athanasopoulou, E.

AU - Vogel, H.

AU - Vogel, B.

AU - Tsimpidi, A. P.

AU - Pandis, S. N.

AU - Knote, C.

AU - Fountoukis, Christos

PY - 2013

Y1 - 2013

N2 - A volatility basis set (VBS) approach for the simulation of secondary organic aerosol (SOA) formation is incorporated in the online coupled atmospheric model system COSMO-ART and applied over Europe during the EUCAARI May 2008 campaign. Organic aerosol performance is improved when compared to the default SOA module of COSMO-ART (SORGAM) against high temporal resolution aerosol mass spectrometer ground measurements. The impact of SOA on the overall radiative budget was investigated. The mean direct surface radiative cooling averaged over Europe is-1.2 W m-2, representing approximately 20% of the total effect of aerosols on the radiative budget. However, responses are not spatially correlated with the radiative forcing, due to the nonlinear interactions among changes in particle chemical composition, water content, size distribution and cloud cover. These interactions initiated∼by the effect of SOA on radiation are found to result even in a positive forcing in specific areas. Further model experiments showed that the availability of nitrogen oxides slightly affects SOA production, but that the aging rate constant used in the VBS approximation and boundary concentrations assumed in the model should be carefully selected. The aging of SOA is found to reduce hourly nitrate levels by up to 30%, while the condensation of inorganic species upon pre-existing, SOA-rich particles results in a monthly average increase of 5% in sulfate and ammonium formation in the accumulation mode.

AB - A volatility basis set (VBS) approach for the simulation of secondary organic aerosol (SOA) formation is incorporated in the online coupled atmospheric model system COSMO-ART and applied over Europe during the EUCAARI May 2008 campaign. Organic aerosol performance is improved when compared to the default SOA module of COSMO-ART (SORGAM) against high temporal resolution aerosol mass spectrometer ground measurements. The impact of SOA on the overall radiative budget was investigated. The mean direct surface radiative cooling averaged over Europe is-1.2 W m-2, representing approximately 20% of the total effect of aerosols on the radiative budget. However, responses are not spatially correlated with the radiative forcing, due to the nonlinear interactions among changes in particle chemical composition, water content, size distribution and cloud cover. These interactions initiated∼by the effect of SOA on radiation are found to result even in a positive forcing in specific areas. Further model experiments showed that the availability of nitrogen oxides slightly affects SOA production, but that the aging rate constant used in the VBS approximation and boundary concentrations assumed in the model should be carefully selected. The aging of SOA is found to reduce hourly nitrate levels by up to 30%, while the condensation of inorganic species upon pre-existing, SOA-rich particles results in a monthly average increase of 5% in sulfate and ammonium formation in the accumulation mode.

UR - http://www.scopus.com/inward/record.url?scp=84872795970&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872795970&partnerID=8YFLogxK

U2 - 10.5194/acp-13-625-2013

DO - 10.5194/acp-13-625-2013

M3 - Article

VL - 13

SP - 625

EP - 645

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

SN - 1680-7316

IS - 2

ER -