Evaluation of a new eddy diffusivity parameterization from turbulent Eulerian spectra in different stability conditions (Articolo in rivista)

Type

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

Label

• Evaluation of a new eddy diffusivity parameterization from turbulent Eulerian spectra in different stability conditions (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

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

• 10.1016/S1352-2310(01)00469-1 (literal)

Alternative label

• Mangia C., D.M.Moreira, I.Schipa, G.A. Degrazia, T.Tirabassi, U.Rizza (2002)
  Evaluation of a new eddy diffusivity parameterization from turbulent Eulerian spectra in different stability conditions
  in Atmospheric environment (1994)
  (literal)

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

• Mangia C., D.M.Moreira, I.Schipa, G.A. Degrazia, T.Tirabassi, U.Rizza (literal)

Pagina inizio

• 67 (literal)

Pagina fine

• 72 (literal)

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

• 36 (literal)

Rivista

• Atmospheric environment (Rivista)

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

• 6 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• D.M.Moreira, G.A. Degrazia: UFSM-DF, Santa Maria Brasil (literal)

Titolo

• Evaluation of a new eddy diffusivity parameterization from turbulent Eulerian spectra in different stability conditions (literal)

Abstract

• A parameterisation for the vertical diffusivity has been recently derived by some of the authors. The formulation, based on the Taylor's statistical theory, the Hay and Pasquill working approximation concerning the relationship between Lagrangian and Eulerian turbulence spectra and a model for Eulerian spectra, relates plume dispersion in a boundary layer mainly to the turbulent eddies acting in the planetary boundary layer (PBL). The formulation represents in a realistic way both shear and buoyant turbulent mechanisms, which characterise the various regimes of the PBL and gives continuous values at any elevation and all stability conditions from unstable to stable. In this paper, the K-parameterisations, included in an advanced analytical model, have been tested and compared with a vertical dispersion scheme reported in literature, using experimental data in different emission conditions (low and tall stacks) and in several meteorological conditions ranging from stable to convective. Results show that (i) the dispersion model with the K-parameterisation included, produces a good fitting of the measured ground-level concentration data in all the experimental conditions considered; (ii) there are no big differences between the parameterisation proposed and the alternative taken from literature. The main advantage of the proposed model with respect to existing formulations consists mainly in its continuity at all elevations and for different stability regimes, resulting more physically correct. (literal)

Prodotto di

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Processi di trasporto turbolento e dispersione in atmosfera per la qualità dell'aria e il clima: teoria e modellistica (TA.P05.018.001) (Modulo)

Autore CNR

• CRISTINA MANGIA (Persona)
• ILENIA SCHIPA (Persona)
• UMBERTO RIZZA (Unità di personale interno)
• TIZIANO TIRABASSI (Unità di personale interno)

Incoming links:

Prodotto

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Processi di trasporto turbolento e dispersione in atmosfera per la qualità dell'aria e il clima: teoria e modellistica (TA.P05.018.001) (Modulo)

Autore CNR di

• CRISTINA MANGIA (Persona)
• UMBERTO RIZZA (Unità di personale interno)
• TIZIANO TIRABASSI (Unità di personale interno)
• ILENIA SCHIPA (Persona)

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

• Atmospheric environment (Rivista)