中尺度动力学的低频变异性能否部分解释浮游植物和浮游动物的光谱变异性?

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences Pub Date : 2004-06-08 DOI:10.1098/rspa.2003.1219

M. Lévy, P. Klein

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引用次数: 61

摘要

近20年来的观测研究表明，浮游植物的空间分布具有波数光谱的特征，其斜率范围为k−1和k−3 (k为波数)，水平尺度范围为10至100 km。这种强烈的光谱变异性可能是由物理和/或生物学造成的。我们在本文中表明，与中尺度动力学相关的低频变率(LFV)可以解释观测到的变率的重要部分。我们的数值结果还表明，浮游植物和浮游动物光谱斜率的差异可能取决于动态LFV。

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Does the low frequency variability of mesoscale dynamics explain a part of the phytoplankton and zooplankton spectral variability?

Observational studies of the last 20 years have revealed a spatial distribution of phytoplankton characterized by a wavenumber spectrum whose slope ranges between k−1 and k−3 (with k being the wavenumber), over horizontal scales ranging from 10 to 100 km. This strong spectral variability can be due either to the physics and/or to the biology. We show in this note that the low frequency variability (LFV) linked to the mesoscale dynamics may explain a significant part of the observed variability. Our numerical results also suggest that the difference between the phytoplankton and zooplankton spectral slopes can depend on the dynamical LFV.

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Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences

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