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Determination of surface stress from vertical‐velocity spectra
Author(s) -
Moravek D.,
Panofsky H. A.,
Weber A.
Publication year - 1976
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.49710243121
Subject(s) - spectral line , logarithm , limiting , surface stress , surface (topology) , stability (learning theory) , boundary layer , stress (linguistics) , convection , spectrum (functional analysis) , surface layer , mechanics , physics , mathematical analysis , mathematics , materials science , geometry , layer (electronics) , mechanical engineering , linguistics , philosophy , quantum mechanics , astronomy , machine learning , computer science , engineering , composite material
Many recent measurements of vertical‐velocity spectra in the atmospheric boundary layer are combined in order to derive the dependence of the maximum of the logarithmic spectrum, normalized by surface stress, on stability. An empirical equation is suggested which fits the observations and has the proper limiting form for free convection. It is suggested that this equation can be used to derive surface stresses from relatively simple measurements of the most energetic part of the spectrum, and from a stability parameter.