Estimating atmospheric stability from monostatic acoustic sounder records

Autor: S.P. Singal, E.W.D. Lewthwaite, D.S. Wratt
Rok vydání: 1989
Předmět:
Zdroj: Atmospheric Environment (1967). 23:2079-2084
ISSN: 0004-6981
DOI: 10.1016/0004-6981(89)90169-8
Popis: empirically developed a method for atmospheric stability classification from acoustic sounder facsimile chart records, using data from New Delhi. The method is tested in this paper using independent data from a site in the north of New Zealand. The scheme is found to work quite well in identifying whether the atmosphere is stable, neutral or unstable at a given time. However, judged against a stability scheme using meteorological tower data, it is less successful in discriminating between particular stability classes within these broad ranges. For the convective boundary layer the sounder stability classification scheme is shown to be sensitive to the surface sensible heat flux and the boundary layer mixing depth. However the meteorological tower scheme, like the standard Pasquill stability scheme often used in dispersion modelling, is sensitive to the surface sensible heat flux and the wind speed.
Databáze: OpenAIRE