Turbulent transport within and above a maize canopy

Bill, Robert G.; Allen, L. H.; Audunson, T.; Gebhart, B.; Lemon, E. R.

doi:10.1007/bf00229285

Cited by 3 publications

(1 citation statement)

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“…Esta distribuição desuniforme de fontes e sorvedo� ros, contrasta com o transporte acima de superfícies uniformes, onde os fluxos verticais de "momentum" e calor são constantes. O modelo torna-se mais complicado, devido às variações nas ca racterísticas físicas das superfícies e ao grande número de espécies vegetais que ocorrem na natureza, incluindo as mu danças nas interações planta-atmosfera na camada superficial devido ao crescimento vegetal (BILL et al, 1976).…”

Section: Revisão De Literaturaunclassified

Estudo do calor sensível e latente no interior de uma cultura de milho (<i>Zea mays</i>, L.)

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Section: Revisão De Literaturaunclassified

Estudo do calor sensível e latente no interior de uma cultura de milho (<i>Zea mays</i>, L.)

Frota¹

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Statistics of atmospheric turbulence within and above a corn canopy

Wilson

Ward

Thurtell

et al. 1982

Boundary-Layer Meteorol

146

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Two three-dimensional split-film anemometers were used to measure turbulence statistics within and above a corn canopy. Normalised profiles of mean windspeed, root-mean-square velocity, momentum flux, and heat flux were constructed from half-hourly averages by dividing within-canopy measurements by the simultaneous canopy-top measurement. With the exception of the heat flux, these profiles showed consistent shape from day to day. Time series of the three velocity components were recorded on magnetic tape and subsequently analysed to obtain Eulerian time and length scales and the power spectrum of each component at several heights. The timescale was found to have a local minimum value at the top of the canopy. However the length scale L, formed from the timescale and the root-mean-square vertical velocity varied with height as L, = 0.1 z. The power-spectra were non-dimensionalised to facilitate comparison of spectra at different heights and times. All spectra had -5/3 regions spanning at least two decades in frequency.

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Wind Movement Within Canopies

Shaw

1982

Biometeorology in Integrated Pest Management

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Turbulent transport within and above a maize canopy

Cited by 3 publications

References 13 publications

Estudo do calor sensível e latente no interior de uma cultura de milho (<i>Zea mays</i>, L.)

Estudo do calor sensível e latente no interior de uma cultura de milho (<i>Zea mays</i>, L.)

Statistics of atmospheric turbulence within and above a corn canopy

Wind Movement Within Canopies

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Turbulent transport within and above a maize canopy

Cited by 3 publications

References 13 publications

Estudo do calor sensível e latente no interior de uma cultura de milho (&lt;i&gt;Zea mays&lt;/i&gt;, L.)

Estudo do calor sensível e latente no interior de uma cultura de milho (&lt;i&gt;Zea mays&lt;/i&gt;, L.)

Statistics of atmospheric turbulence within and above a corn canopy

Wind Movement Within Canopies

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Product

Resources

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Estudo do calor sensível e latente no interior de uma cultura de milho (<i>Zea mays</i>, L.)

Estudo do calor sensível e latente no interior de uma cultura de milho (<i>Zea mays</i>, L.)