Correlation of dry deposition velocity and friction velocity over different surfaces for PM2.5 and particle number concentrations (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Correlation of dry deposition velocity and friction velocity over different surfaces for PM2.5 and particle number concentrations (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1155/2014/760393 (literal)

Alternative label

• Donateo, Antonio; Contini, Daniele (2014)
  Correlation of dry deposition velocity and friction velocity over different surfaces for PM2.5 and particle number concentrations
  in Advances in Meteorology (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Donateo, Antonio; Contini, Daniele (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.scopus.com/record/display.url?eid=2-s2.0-84903641209&origin=inward (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 2014 (literal)

Rivista

• Advances in Meteorology (Rivista)

Note

• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Consiglio Nazionale delle Ricerche (literal)

Titolo

• Correlation of dry deposition velocity and friction velocity over different surfaces for PM2.5 and particle number concentrations (literal)

Abstract

• Dry deposition of particles is an important way of aerosol removal from the atmosphere and a key process in surface-atmosphere exchanges. The deposition velocities, Vd, are often parameterised in air quality and climate modelling as function of the friction velocity, u*, atmospheric stability, and particle size (if size-segregated information is available). In this work, a study of the correlation between Vd and u* over different surfaces is presented for both PM2.5 and particle number fluxes. Results indicate an almost linear increase of Vd with u* with slopes similar for PM2.5 fluxes and particle number fluxes over the different surfaces analysed. This means that the ratios Vd/u* tend to collapse over similar values even if Vd and u* are significantly different because u* take into account most of the surface effects. There is a limited difference between stable cases and unstable/neutral cases with slightly lower deposition velocities in stable cases for fixed values of u*. The average value of Vd/u* is 0.010 ± 0.0017 (median 0.0062 ± 0.0015) (considering all stabilities) and 0.0097 ± 0.002 (median 0.005 ± 0.001) for stable cases. This could be the base for an empirical parameterisation of deposition velocities in air quality models. © 2014 Antonio Donateo and Daniele Contini. (literal)

Prodotto di

• Institute of atmospheric sciences and climate (ISAC) (Istituto)

Autore CNR

• DANIELE CONTINI (Persona)
• ANTONIO DONATEO (Unità di personale interno)

Incoming links:

Prodotto

• Institute of atmospheric sciences and climate (ISAC) (Istituto)

Autore CNR di

• DANIELE CONTINI (Persona)
• ANTONIO DONATEO (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Advances in Meteorology (Rivista)