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The spatial variability of eddy fluxes in the constant flux layer
Author(s) -
Dyer A. J.,
Hicks B. B.
Publication year - 1972
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.49709841518
Subject(s) - eddy covariance , flux (metallurgy) , turbulence , momentum (technical analysis) , tilt (camera) , heat flux , atmospheric sciences , constant (computer programming) , sensible heat , environmental science , meteorology , spatial variability , mechanics , geology , physics , heat transfer , geometry , materials science , mathematics , ecology , statistics , finance , ecosystem , computer science , economics , metallurgy , biology , programming language
At the 1970 International Comparison of Turbulence Instruments held at Tsimlyansk, U.S.S.R., a large number of momentum and heat flux measurements were obtained simultaneously with two Fluxatrons. The data are analysed from the point of view of spatial variation of eddy fluxes, bearing in mind the limitations of the sensors, the variability of the eddy fluxes themselves, and the possibility of errors due to tilt. It is concluded that, at the Tsimlyansk site, the variation of heat and momentum fluxes both in the vertical (4 – 14 m) and the horizontal (1 – 150 m) is of the order 10 per cent or less. This result is in accord with traditional opinion, and provides a satisfactory experimental basis for the concept of a ‘constant flux layer’.