Measurements of the surface layer turbulence in the urban area

Autor:	N. F. Mazurin, M. K. Matskevich, M. A. Novitskii, V. T. Mil’chenko
Rok vydání:	2010
Předmět:	Fluid Flow and Transfer Processes Atmospheric Science Materials science Turbulence Flux Mechanics Atmospheric sciences Anemometer Diurnal cycle Speed of sound Shear velocity Surface layer Water Science and Technology Dimensionless quantity
Zdroj:	Russian Meteorology and Hydrology. 35:386-393
ISSN:	1934-8096 1068-3739
DOI:	10.3103/s106837391006004x
Popis:	The turbulence characteristics measured in the surface layer over a real underlying surface are presented. The measurements are carried out at the 3- and 16-m levels using acoustic anemometers; at the lower level, the measurements are doubled. The diurnal cycle is obtained of the temperature flux and friction velocity. To obtain the temperature flux, so-called “acoustic” temperature is used as calculated from the sound speed data with corrections for air humidity and pressure. The normalized characteristics of turbulence are presented as dependent on dimensionless height z/L. The values of temperature flux and friction velocity increase with height: their day-integral values at 16-m level exceed those at 3-m level for about 20 and 35%, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::450e1db2d501371446b7f54578f5fb61 https://doi.org/10.3103/s106837391006004x Zobrazit plný text záznamu Full text from SpringerLink