Primary Versus Secondary Contributions to Particle Number Concentrations in the European Boundary Layer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F11%3A00372230" target="_blank" >RIV/67985858:_____/11:00372230 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5194/acp-11-12007-2011" target="_blank" >http://dx.doi.org/10.5194/acp-11-12007-2011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/acp-11-12007-2011" target="_blank" >10.5194/acp-11-12007-2011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Primary Versus Secondary Contributions to Particle Number Concentrations in the European Boundary Layer

Popis výsledku v původním jazyce

It is important to understand the relative contribution of primary and secondary particles to regional and global aerosol so that models can attribute aerosol radiative forcing to different sources. In large-scale models, there is considerable uncertainty associated with treatments of particle formation (nucleation) in the boundary layer (BL) and in the size distribution of emitted primary particles, leading to uncertainties in predicted cloud condensation nuclei (CCN) concentrations. Here we quantify how primary particle emissions and secondary particle formation influence size-resolved particle number concentrations in the BL using a global aerosol microphysics model and aircraft and ground site observations made during the May 2008 campaign of the EUCAARI. We tested four different parameterisations for BL nucleation and two assumptions for the emission size distribution of anthropogenic and wildfire carbonaceous particles.

Název v anglickém jazyce

Primary Versus Secondary Contributions to Particle Number Concentrations in the European Boundary Layer

Popis výsledku anglicky

It is important to understand the relative contribution of primary and secondary particles to regional and global aerosol so that models can attribute aerosol radiative forcing to different sources. In large-scale models, there is considerable uncertainty associated with treatments of particle formation (nucleation) in the boundary layer (BL) and in the size distribution of emitted primary particles, leading to uncertainties in predicted cloud condensation nuclei (CCN) concentrations. Here we quantify how primary particle emissions and secondary particle formation influence size-resolved particle number concentrations in the BL using a global aerosol microphysics model and aircraft and ground site observations made during the May 2008 campaign of the EUCAARI. We tested four different parameterisations for BL nucleation and two assumptions for the emission size distribution of anthropogenic and wildfire carbonaceous particles.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Atmospheric Chemistry and Physics

ISSN

1680-7316

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

30

Strana od-do

12007-12036

Kód UT WoS článku

000298134300006

EID výsledku v databázi Scopus

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