Observed Budgets of Turbulence Kinetic Energy, Heat Flux, and Temperature Variance Under Convective and Stable Conditions

Pozzobon, Alessandro E. D.; Acevedo, Otávio C.; Puhales, Franciano Scremin; Oliveira, Pablo E. S.; Maroneze, Rafael; Costa, Felipe Denardin

doi:10.1007/s10546-023-00788-z

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2023

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“…The variance of air temperature in the atmospheric boundary layer (ABL) and its surface part is an important factor affecting, in particular, the processes of optical radiation propagation [1][2][3][4], the quality of astronomical and geodetic observations [5][6][7][8], and the structure and dynamics of the ABL temperature field [9][10][11][12][13][14]. That is why diagnostics and analysis of the height-time structure of temperature variance are urgent from the viewpoint of applying the obtained results to solution of diverse (theoretical and applied) problems.…”

Section: Introductionmentioning

confidence: 99%

Turbulent flows of temperature variance in the atmospheric surface layer

Gladkikh,

Nevzorova,

Odintsov

2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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The turbulence characteristics that determine changes in the air temperature variance in the atmospheric surface layer are considered. The main experimental material for the analysis was obtained with a sonic weather station set in the atmospheric surface layer (10 m) at a territory with natural landscape. Some episodes observed in the summer and winter seasons are analyzed. It is found that the flows of temperature variance decrease markedly in winter as compared to summer. A pronounced diurnal profile of the studied characteristic was observed in summer and absent in winter.

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