| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000408750 |
| ISSN: | 0103-9733 |
| Authors: | Bolzan, Mauricio Jose Alves1 Vieira, Paulo Cesar1 |
| Institutions: | 1Universidade do Vale do Paraiba, Instituto de Pesquisa e Desenvolvimento, Sao Jose dos Campos, Sao Paulo. Brasil |
| Year: | 2006 |
| Season: | Dic |
| Volumen: | 36 |
| Number: | 4A |
| Pages: | 1217-1222 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | We studied the turbulent interactions among vertical wind velocity and temperature time-series measured in the Amazonian forest, during the wet season campaign of Large Biophere-Atmosphere Experiment in Amazonia (LBA) in 1999. The approach is based on the estimation of the correlation coefficient between the different scales in turbulent fields and Cross Wavelet Power (XWP). The results suggest that the correlations among scales of the vertical wind velocity are due to the Coherent Structures (CS), a large scale signature in the thermal profile. These coherent structures, kind of ramps, promoted an increase in the interaction among both variables, vertical wind velocity and temperature, and also depends on the atmospheric stability conditions. Furthermore, these coherent structures may explain the higher values of the correlation coefficient found in the large scales during the diurnal period compared with the nocturnal period, for the vertical wind velocity |
| Disciplines: | Física y astronomía |
| Keyword: | Dinámica de fluidos, Física, Velocidad del viento, Bosque amazónico |
| Keyword: | Physics and astronomy, Fluid dynamics, Physics, Wind velocity, Amazonian forest |
| Full text: | Texto completo (Ver PDF) |
