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首页> 外文期刊>Ocean Dynamics >Marine algae are 'taught' the basics of angular momentum
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Marine algae are 'taught' the basics of angular momentum

机译：海藻是“教”角动量的基础

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Advanced modelling studies and high-resolution observations have shown that flows related to instability of the mesoscale (similar to 1-10 km scale) may provide both the fertilisation mechanism for nutrient-depleted (oligotrophic) surface waters and a subduction mechanism for the rapid export of phytoplankton biomass to the deep ocean. Here, a detailed multidisciplinary analysis of the data from an example high-resolution observational campaign is presented. The data provide direct observations of the transport of phytoplankton through baroclinic instability. Furthermore, the data confirm that this transport is constrained by the requirement to conserve angular momentum, expressed in a stratified water column as the conservation of potential vorticity. This constraint is clearly seen to produce long thin filaments of phytoplankton populations strained out along isopycnal vorticity annuli associated with mesoscale frontal instabilities.
机译：先进的建模研究和高分辨率的观测结果表明，与中尺度不稳定性相关的流量（类似于1-10 km尺度）可能为营养耗尽（贫营养）地表水提供施肥机制，也为快速出口提供俯冲机制浮游生物的生物量到深海。这里，展示了来自示例高分辨率观察运动的数据的详细多学科分析。数据提供了通过斜压不稳定对浮游植物运输的直接观察。此外，数据证实，这种运输受到保持角动量的要求的约束，角动量在分层水柱中表示为潜在涡度的守恒。可以清楚地看到，这种限制会产生长而细的浮游植物种群细丝，这些细丝沿着与中尺度锋面不稳定性相关的等密度涡旋环散开。

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