WIT Press

Evolution Of The Inversion Layer And Pollutant Dispersion In Real Valley

Price

Free (open access)

Paper DOI

10.2495/AIR950272

Volume

10

Pages

8

Published

1995

Size

709 kb

Author(s)

C. Guilbaud, S. Anquetin & J.-P. Chollet

Abstract

This study is devoted to a better comprehension of the physical mechanisms associated to inversion layers within deep valleys. The diurnal radiative budget. which acts as the main forcing in the dynamics of the inversion, is 1 hrreforr explicitly taken into account through a soil model (SM2). SM2 is validated on field experiments, and coupled to an atmospherical model ARPS-SM to reproduce the time evolution of the dynamics of a Planetary Boundary Layer. Then. 1 lie destruction an inversion layer within a symetric bidimensionnal valley is simulated with drastic effects on dispersion of scalar. 1 Introduction Air pollution in cities located in deep valleys is mainly due to inte

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