A model prediction of the yield of cloud condensation nuclei from coastal nucleation events
[1] The formation and evolution of new particles during coastal nucleation events are examined using the aerosol dynamic and gas-phase chemistry model AEROFOR2. Coastal regions are known to be a strong source of natural aerosol particles and are also strong sources of biogenic vapors which can conde...
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ftnuigalway:oai:https://researchrepository.universityofgalway.ie:10379/9781 2024-09-30T14:39:46+00:00 A model prediction of the yield of cloud condensation nuclei from coastal nucleation events Pirjola, Liisa 2002-01-01 http://hdl.handle.net/10379/9781 https://doi.org/10.13025/23758 https://doi.org/10.1029/2000jd000213 unknown Wiley-Blackwell Journal of Geophysical Research Pirjola, Liisa (2002). A model prediction of the yield of cloud condensation nuclei from coastal nucleation events. Journal of Geophysical Research 107 , 0148-0227 http://hdl.handle.net/10379/9781 https://doi.org/10.13025/23758 doi:10.1029/2000jd000213 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ aerosol dynamics coastal particles nucleation rate vapor source rate ccn marine boundary-layer sulfate aerosol formation sea-salt aerosol particle formation free troposphere north-atlantic sulfuric-acid atmospheric particles size distribution dimethyl sulfide Article 2002 ftnuigalway https://doi.org/10.13025/2375810.1029/2000jd000213 2024-09-17T14:44:29Z [1] The formation and evolution of new particles during coastal nucleation events are examined using the aerosol dynamic and gas-phase chemistry model AEROFOR2. Coastal regions are known to be a strong source of natural aerosol particles and are also strong sources of biogenic vapors which can condense onto aerosol particles, thus resulting in particle growth. A number of model simulations were performed to determine the instantaneous nucleation rate along with the source rate of a generic biogenic vapor leading to the observed particle size distributions which indicate the rapid appearance of similar to10(5)-10(6) cm(-3) nucleation mode particles in this environment. Model calculations suggest values of 3 x 10(5) cm(-3) s(-1) to 3 x 10(6) cm(-3) s(-1) for the instantaneous nucleation rate and a value of 5 x 10(7) cm(-3) s(-1) for the condensable vapor source rate in order to reproduce the observed concentrations. A significant fraction of these new particles survive to grow into cloud condensation nuclei (CCN) sizes for supersaturations typically encountered in boundary layer clouds during subsequent evolution over 3 days under clear-sky conditions, thus contributing to the indirect radiative effect of aerosols. The amount of CCN is mainly affected by coagulation between particles and condensation of the biogenic vapor and, to a lesser extent, by condensation of sulphuric acid formed by DMS oxidation. In all simulated cases, an increase of more than 100% in CCN concentration, for supersaturations >0.35% was observed. Article in Journal/Newspaper North Atlantic National University of Ireland (NUI), Galway: ARAN |
institution |
Open Polar |
collection |
National University of Ireland (NUI), Galway: ARAN |
op_collection_id |
ftnuigalway |
language |
unknown |
topic |
aerosol dynamics coastal particles nucleation rate vapor source rate ccn marine boundary-layer sulfate aerosol formation sea-salt aerosol particle formation free troposphere north-atlantic sulfuric-acid atmospheric particles size distribution dimethyl sulfide |
spellingShingle |
aerosol dynamics coastal particles nucleation rate vapor source rate ccn marine boundary-layer sulfate aerosol formation sea-salt aerosol particle formation free troposphere north-atlantic sulfuric-acid atmospheric particles size distribution dimethyl sulfide Pirjola, Liisa A model prediction of the yield of cloud condensation nuclei from coastal nucleation events |
topic_facet |
aerosol dynamics coastal particles nucleation rate vapor source rate ccn marine boundary-layer sulfate aerosol formation sea-salt aerosol particle formation free troposphere north-atlantic sulfuric-acid atmospheric particles size distribution dimethyl sulfide |
description |
[1] The formation and evolution of new particles during coastal nucleation events are examined using the aerosol dynamic and gas-phase chemistry model AEROFOR2. Coastal regions are known to be a strong source of natural aerosol particles and are also strong sources of biogenic vapors which can condense onto aerosol particles, thus resulting in particle growth. A number of model simulations were performed to determine the instantaneous nucleation rate along with the source rate of a generic biogenic vapor leading to the observed particle size distributions which indicate the rapid appearance of similar to10(5)-10(6) cm(-3) nucleation mode particles in this environment. Model calculations suggest values of 3 x 10(5) cm(-3) s(-1) to 3 x 10(6) cm(-3) s(-1) for the instantaneous nucleation rate and a value of 5 x 10(7) cm(-3) s(-1) for the condensable vapor source rate in order to reproduce the observed concentrations. A significant fraction of these new particles survive to grow into cloud condensation nuclei (CCN) sizes for supersaturations typically encountered in boundary layer clouds during subsequent evolution over 3 days under clear-sky conditions, thus contributing to the indirect radiative effect of aerosols. The amount of CCN is mainly affected by coagulation between particles and condensation of the biogenic vapor and, to a lesser extent, by condensation of sulphuric acid formed by DMS oxidation. In all simulated cases, an increase of more than 100% in CCN concentration, for supersaturations >0.35% was observed. |
format |
Article in Journal/Newspaper |
author |
Pirjola, Liisa |
author_facet |
Pirjola, Liisa |
author_sort |
Pirjola, Liisa |
title |
A model prediction of the yield of cloud condensation nuclei from coastal nucleation events |
title_short |
A model prediction of the yield of cloud condensation nuclei from coastal nucleation events |
title_full |
A model prediction of the yield of cloud condensation nuclei from coastal nucleation events |
title_fullStr |
A model prediction of the yield of cloud condensation nuclei from coastal nucleation events |
title_full_unstemmed |
A model prediction of the yield of cloud condensation nuclei from coastal nucleation events |
title_sort |
model prediction of the yield of cloud condensation nuclei from coastal nucleation events |
publisher |
Wiley-Blackwell |
publishDate |
2002 |
url |
http://hdl.handle.net/10379/9781 https://doi.org/10.13025/23758 https://doi.org/10.1029/2000jd000213 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Journal of Geophysical Research Pirjola, Liisa (2002). A model prediction of the yield of cloud condensation nuclei from coastal nucleation events. Journal of Geophysical Research 107 , 0148-0227 http://hdl.handle.net/10379/9781 https://doi.org/10.13025/23758 doi:10.1029/2000jd000213 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.13025/2375810.1029/2000jd000213 |
_version_ |
1811642360078008320 |