HR: 0800h
AN: NG51A-01    [Abstracts]
TI: Taylor's hypothesis in the atmosphere: a query on the underlying phenomenology
AU: * Carsteanu, A A
EM: alin@math.cinvestav.mx
AF: Cinvestav, Mathematics Dept., Av. IPN 2508, Col. San Pedro Zacatenco, Mexico, DF 07360, Mexico
AU: Mukhamejanova, S
EM: mukhamejanova@ok.kz
AF: Institute of Mathematics of Kazakhstan, Pushkin Str., 125, Almaty, 050010, Kazakhstan
AU: Castro, J J
EM: jjcastro@fis.cinvestav.mx
AF: Cinvestav, Physics Department, Av. IPN 2508, Col. San Pedro Zacatenco, Mexico, DF 07360, Mexico
AB: G.I. Taylor's transposition hypothesis for turbulent statistics from the spatial to the temporal domain (and vice- versa) is usually explained in terms of smaller features being advected by a large-scale transport velocity, while intrinsic temporal velocity fluctuations are slower than the corresponding inertial terms, and turbulent velocity fluctuations remain small in comparison with the transport velocity. Previous work by our team, in collaboration with Jose D. Fuentes, has shown that atmospheric boundary layer velocities show very similar behavior of their statistical moments in the time domain between periods of high transport velocities and periods of low activity, hereby casting a doubt on the above-mentioned explanation. Herein, new proof is being presented in favor of a space-time multifractal field-based phenomenology.
DE: 4415 Cascades
DE: 4440 Fractals and multifractals
DE: 4468 Probability distributions, heavy and fat-tailed (3265)
DE: 4475 Scaling: spatial and temporal (1872, 3270, 4277)
DE: 4490 Turbulence (3379, 4568, 7863)
SC: Nonlinear Geophysics [NG]
MN: 2007 Joint Assembly