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The relation between Eulerian time and space spectra
Author(s) -
Panofsky H. A.,
Cramer H. E.,
Rao V. R. K.
Publication year - 1958
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49708436108
Subject(s) - turbulence , eulerian path , stratification (seeds) , physics , mathematics , spectral line , scale (ratio) , statistical physics , mechanics , mathematical analysis , biology , quantum mechanics , seed dormancy , germination , botany , lagrangian , dormancy
Abstract Simultaneous observations of space correlations and time correlations verify that Taylor's hypothesis x = Ut is valid for intervals up to at least 90 m, and for relative intensities of turbulence at least up to 0·26. It is also shown that, when the stratification is stable, the longitudinal scale of turbulence tends to be much larger along the flow than across it. In an unstable layer, the scale is of the same order of magnitude in all directions.