Spatial patterns in dense algal blooms
Spatial patterns in dense algal blooms
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密集藻华的空间模式
DOI：
10.4319/lo.1997.42.5_part_2.1297
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发表时间：
1997-07-01
影响因子：
4.5
通讯作者：
Franks, PJS
中科院分区：
文献类型：
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作者：
Franks, PJS
在密集的藻类水华中，由于下沉、漂浮或游动的藻类与当地的物理动力相互作用，往往会产生复杂而引人注目的图案。这些图案的结构可以揭示许多关于图案形成的基本过程。在这里，我探索了密集藻类水华的三种常见模式：混沌混合、内波带状和尖锐锋面。对于这些模式中的每一个，我都开发了一个简单的模型来模拟模式的定性方面。然后对这些模型进行分析，以更好地理解模式形成所涉及的依赖时间和空间的过程，并提出我们可能更好地对这些模式进行采样以更准确地量化动态的方法。这一分析的一个重要结果是，拉格朗日示踪剂的复杂模式不需要由类似复杂的方式模式驱动。
Intricate and striking patterns are often created in dense algal blooms by the interaction of sinking, floating, or swimming algae and local physical dynamics. The structure of these patterns can reveal a great deal about the processes underlying the pattern formation. Here I explore three common patterns in dense algal blooms: chaotic mixing, internal wave banding, and sharp fronts. For each of these patterns, I develop a simple model to simulate the qualitative aspects of the patterns. The models are then analyzed to better understand the time and space-dependent processes involved in pattern formation and to suggest ways in which we might better sample such patterns to more accurately quantify the dynamics. One significant result of this analysis is that complicated patterns of Lagrangian tracers need not be driven by similarly complicated patterns of the how.