At the base of the marine food web, phytoplankton are an essential component of the Arctic Ocean ecosystem and carbon cycle. Especially after sea ice retreats and light becomes more available to the Arctic Ocean each summer, phytoplankton productivity is limited by nutrient availability, which can be replenished by vertical mixing of the water column. One potential mixing mechanism is gale‐force wind associated with summer storm activity. Past studies show that sustained high winds (>10 m s⁻¹) impart sufficient stress on the ocean surface to induce vertical mixing, and it has been speculated that greater storm activity may increase net primary productivity (NPP) on a year‐to‐year timescale. We test this idea using a combination of satellite products and reanalysis data from 1998 to 2018. After controlling for the amount of open water, sea‐surface temperature, and wind direction, we find evidence that greater frequency of high‐wind events in summer is associated with greater seasonal NPP in the Barents, Laptev, East Siberian, and southern Chukchi Seas. This relationship is only robust for the Barents and southern Chukchi Seas, which are more strongly impacted by inflow of relatively nutrient‐rich water from the Atlantic and Pacific Oceans, respectively. In other words, stormier summers may have higher productivity in several regions of the Arctic Ocean, but especially the two inflow seas. Additionally, a recent rise in high‐wind frequency in the Barents Sea may have contributed to the simultaneous increase in NPP.

中文翻译：

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北冰洋夏季强风事件与浮游植物生产力

在海洋食物网的基础上，浮游植物是北冰洋生态系统和碳循环的重要组成部分。尤其是在每年夏季海冰撤退和北极光越来越多之后，浮游植物的生产力受到养分利用率的限制，养分的利用率可以通过水柱的垂直混合来补充。一种潜在的混合机制是与夏季风暴活动相关的强风。过去的研究表明持续的强风（> 10 m s ^-1）在海面上施加足够的压力以引起垂直混合，并且据推测，更大的风暴活动可能会在逐年的时间尺度上增加净初级生产力（NPP）。我们使用卫星产品和1998年至2018年的再分析数据的组合，对该想法进行了测试。在控制了开阔水域，海表温度和风向的数量之后，我们发现有证据表明，夏季发生高风事件的频率更高与巴伦支，拉普捷夫，西伯利亚东部和楚科奇海南部的季节性NPP升高有关。这种关系仅对巴伦支海和楚科奇海南部是牢固的，它们分别受到来自大西洋和太平洋的相对营养丰富的水流入的强烈影响。换一种说法，在北冰洋几个地区，特别是两个流入海域，夏季多风的夏季可能具有较高的生产力。此外，最近巴伦支海高风频率的上升可能也导致了NPP的同时上升。