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To what extent are spectra controlled by stirring and mixing?
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A theory is required to underpin the analysis and
comparison
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of plankton and “inert” tracer spectra.
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Such a theory needs to relate structure in biological fields
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and
velocity fields at all scales.
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A pre-requisite of this is a suitable model of
turbulent flow.
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Several
user-friendly options have been used.
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All rely on cascades – the conservative transfer of
a property
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from one scale to the next,
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from large scale to small scale.
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Cascading properties scale – spectral density ~ kp
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