Low-level jets (LLJ) are important for turbulence in the stably stratified atmospheric boundary layer, but their occurrence, properties, and generation mechanisms in the Arctic are not well known. We analysed LLJs over the central Arctic Ocean in spring and summer 2007 on the bases of data collected in the drifting ice station Tara. Instead of traditional radiosonde soundings, data from tethersonde soundings with a high vertical resolution were used. The Tara results showed a lower occurrence of LLJs (46%) than many previous studies over polar sea ice. Strong jet core winds contributed to growth of the turbulent layer. Complex relationship between the jet core height and the temperature inversion top height were detected: substantial correlation (r = 0.72; p
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机译：低空急流对稳定分层的大气边界层中的湍流很重要，但是在北极，它们的发生，性质和生成机制并不为人所知。我们根据流冰站塔拉（Tara）收集的数据，于2007年春季和夏季分析了北冰洋中部的低空急流。代替传统的无线电探空仪探空仪，使用了具有高垂直分辨率的来自绳索探空仪探空仪的数据。塔拉结果显示，与以前许多关于极地海冰的研究相比，低空急流的发生率较低（46％）。强烈的射流芯风促进了湍流层的增长。检测到射流芯高度与温度反演顶部高度之间的复杂关系：显着相关（r = 0.72; p
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