Spectral Characteristics of the Wind Components in the Surface Atmospheric Boundary Layer

The objective of this work is the study of the spectral characteristics of the wind components in the surface Atmospheric Boundary Layer (ABL). The analyzed data are based on an experimental campaign measurements which has been conducted in the framework of the European project ECATS, at the Athens...

Full description

Saved in:
Bibliographic Details
Published in:WSEAS Transactions on Environment and Development 2015-01, Vol.11, p.73-79
Main Authors: Helmis, Costas, Asimakopoulos, Dimosthenis
Format: Article
Language:English
Subjects:
Atmospheric boundary layer
Evolution
Fluid dynamics
Friction
Instrumentation
Slopes
Spectra
Turbulence
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The objective of this work is the study of the spectral characteristics of the wind components in the surface Atmospheric Boundary Layer (ABL). The analyzed data are based on an experimental campaign measurements which has been conducted in the framework of the European project ECATS, at the Athens International Airport (AIA), Greece, from 13th to 25th of September 2007, with the use of remote sensing and in situ instrumentation. According to the analysis an increase of the wind speed or the friction velocity lead to a decrease of the spectra slope values while the evolution of the atmospheric stability from unstable to stable conditions increase the spectra slope values which generally become steeper, meaning that the turbulence in the surface ABL dissipates faster than expected.
ISSN:1790-5079
2224-3496