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Analysis of turbulent exchange and coherent structures in the stable atmospheric boundary layer based on tower observations
Título : Analysis of turbulent exchange and coherent structures in the stable atmospheric boundary layer based on tower observations
Autor : Ferreres, E.Soler, M. R.Terradellas, Enric
Palabras clave : Transformada wavelet; Capa límite nocturna; Turbulencia atmosférica; Coherent structures; Intermittent turbulence; Nocturnal boundary layer; Wavelet Transform
Fecha de publicación : 2013
Editor: Elsevier
Citación : Dynamics of Atmospheres and Oceans. 2013, 64, p. 62–78
Versión del editor: https://dx.doi.org/10.1016/j.dynatmoce.2013.10.002
Resumen : Using data collected at the Spanish low troposphere research centre CIBA (Centro de Investigación de la Baja Atmósfera) and at the Cabauw Experimental Site for Atmospheric Research (CESAR) in the Netherlands, we analysed the most significant features of different coherent structures occurring in the stable atmospheric boundary layer. In particular, we used both the Reynolds and wavelet methods to analyse a solitary wave, a gravity wave, a density current and a low-level jet. For each of these structures, we found that wavelet analysis had the capacity to distinguish the different scales involved in these events due to the different timing and heights of the thermal instabilities and downdrafts associated with the disturbances. In addition, the wavelet method highlights the different roles of turbulence and coherent structures in the transfer of heat, moisture and CO2 in the nocturnal boundary layer.
Patrocinador: This study was supported by the Spanish government through the project CGL 2009- 12797-C03-03.
URI : http://hdl.handle.net/20.500.11765/1353
ISSN : 0377-0265
Colecciones: Artículos científicos 2010-2014


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