OBTAINING THE MEANDERING LOOP PARAMETER IN LOW WIND SPEED CONDITION

Authors

  • Lilian Piecha Moor Universidade Federal de Santa Maria Instituto Federal Farroupilha
  • Gervásio Annes Degrazia Universidade Federal de Santa Maria
  • Michel Stefanello Universidade Federal de Santa Maria
  • Luca Mortarini do Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR)
  • Otávio Costa Acevedo Universidade Federal de Santa Maria
  • Silvana Maldaner Universidade Federal de Santa Maria
  • Charles Szinvelski Universidade Federal de Santa Maria
  • Débora Regina Roberti Universidade Federal de Santa Maria
  • Lidiane Buligon Universidade Federal de Santa Maria
  • Domenico Anfossi Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR)

DOI:

https://doi.org/10.5902/2179460X20269

Keywords:

Meandering. Autocorrelation function.

Abstract

The looping parameter m is the main value to characterize the meandering phenomenon. This parameter is relationship with negative lobes in the observed autocorrelation function generated from components of horizontal speed. In this work, we present a study comparing the mean values of the looping parameter between 2 diverse sites in the Brazilian sector.

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Author Biographies

Lilian Piecha Moor, Universidade Federal de Santa Maria Instituto Federal Farroupilha

Aluna da PPGFis, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil

Professora da Coordenação Geral de Ensino, Instituto Federal Farroupilha, Jaguari, RS, Brasil

 

Gervásio Annes Degrazia, Universidade Federal de Santa Maria

Professor do Departamento de Física

Michel Stefanello, Universidade Federal de Santa Maria

Aluna da PPGFis, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil

Luca Mortarini, do Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR)

Pesquisador do Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR)

Otávio Costa Acevedo, Universidade Federal de Santa Maria

Professor do Departamento de Física

Silvana Maldaner, Universidade Federal de Santa Maria

Professor do Departamento de Física

Charles Szinvelski, Universidade Federal de Santa Maria

Professor do Departamento de Matemática

Débora Regina Roberti, Universidade Federal de Santa Maria

Professora do Departamento de Física

Lidiane Buligon, Universidade Federal de Santa Maria

Professora do Departamento de Matemática

Domenico Anfossi, Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR)

Pesquisador do Institute of Atmospheric Sciences and Climate (ISAC) of the Italian National Research Council (CNR)

References

Acevedo, O. C., Moraes, O. L., Da Silva, R., Fitzjarrald, D. R., Sakai, R. K., Staebler, R. M., & Czikowsky, M. J. (2004). Inferring nocturnal surface fluxes from vertical profiles of scalars in an Amazon pasture. Global Change Biology, 10, 1–9.

Anfossi, D.; Degrazia, G. A.; Goulart, A. (2005). An Analysis of Sonic Anemometer Observations in Low Wind Speed Conditions. Boundary-Layer Meteorology, 114, 179-203.

Buligon, L.; Degrazia, G. A.; Szinvelski, C.; Moor, L. P. (2013). Uma nova derivação da taxa de dissipação turbulenta para eventos de turbulência fraca e bem desenvolvida. Ciência e Natura, v. X, p. 270.

Degrazia, G. A.; A. Goulart; J. Costa Carvalho3, C. R. P. Szinvelski; L. Buligon and A. Ucker Timm. (2008). Turbulence dissipation rate derivation for meandering occurrences in a stable planetary boundary layer. Atmos. Chem. Phys., 8. 1713–1721.

Fluxnet.ornl.gov. Fluxnet, 2013. Disponível em: <http://fluxnet.ornl.gov/site/84>. Acesso em: 01 dez. 2014.

Goulart A.; Degrazia G.; Acevedo O.; Anfossi D. (2007). Theoretical considerations of meandering winds in simplified conditions. Bound.-Lay. Meteorol., 125, 279–287.

Moor, L. P., Gervasio A. Degrazia; Michel B. Stefanello; Luca Mortarini; Otavio C. Acevedo; Silvana Maldaner; Charles R. P. Szinvelski; Débora R. Roberti; Lidiane Buligon; Domenico Anfossi. (2015). Proposal of a new autocorrelation function in low wind speed conditions. PhysicaA: Statistical Mechanics and its Applications, vol. 438, p. 286 - 292.

Mortarini, L.; E. Ferrero; S. Falabino; S. Trini Castelli; R. Richiardone and D. Anfossi. (2013). Low-frequency processes and turbulence structure in a perturbed boundary layer. Q.J.R. Meteorol. Soc., 139, 1059–1072.

Published

2016-07-20

How to Cite

Moor, L. P., Degrazia, G. A., Stefanello, M., Mortarini, L., Acevedo, O. C., Maldaner, S., Szinvelski, C., Roberti, D. R., Buligon, L., & Anfossi, D. (2016). OBTAINING THE MEANDERING LOOP PARAMETER IN LOW WIND SPEED CONDITION. Ciência E Natura, 38, 372–375. https://doi.org/10.5902/2179460X20269

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