Naslov
Diurnal Variation of Air Temperature in the Atmospheric Surface Layer

Autori
Likso, Tanja ; Pandžić, Krešo

Izvornik
Agriculturae Conspectus Scientificus (1331-7768) 71 (2006), 3; 87-93

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
temperatura zraka; površinski sloj atmosfere; Monin-Obukhovljeva teorija sličnosti
(air temperature; atmospheric surface layer; Monin-Obukhov similarity theory)

Sažetak
In order to illustrate the nature of the diurnal temperature variations in the atmospheric surface layer in all seasons a set of hourly observations at the Zagreb-Maksimir Observatory (Croatia), measured at three different levels (5 cm, 50 cm and 2 m above ground) during the year 2005, was used. An approximate method for calculating air temperature at 5 cm, using the air temperature at 2 m, is presented. For this purpose, hourly data (screen height temperature, cloudiness, air pressure at barometer level and wind speed at 2 m) collected at the Zagreb-Maksimir Observatory during the summer season of 2005 have been used. This method is based on the Monin-Obukhov similarity theory. Estimated values have been compared with observations. The results obtained are the most accurate for cloudy weather, and the least accurate in the case of clear sky. A systematic error of this approach was discovered using a clustering procedure and is briefly discussed.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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