The variability in sediment concentration and spatial distribution of meltwater discharges from tidewater glaciers can be used to elucidate climatic evolution and glacier behaviour due to the association between sediment yield and glacier retreat (e.g. Domack & McClennen 1996). In an accelerated deglaciation environment, higher sediment concentrations in the water column can change the glacimarine costal dynamics and affect productivity and sea floor ecosystems (e.g. Marín et al. 2013). In the Antarctic Peninsula Region, meltwater or turbid plumes were previously believed to be rare or without an important role in the sedimentary glacimarine environment (e.g. Griffith & Anderson 1989), but recent studies have shown that this is a common phenomenon in subpolar and transition polar climates (Yoo et al. 2015, Rodrigo et al. 2016). In the current climate change scenario, accelerated glacier retreats and mass losses can produce an increasing input of glacial meltwater into the fjord regions, a situation that is not yet well evaluated in the Antarctic Peninsula. In this short note, after in situ observation of an unusual waterfall from the southern side of the main western tidewater glacier (Shoesmith Glacier) of Horseshoe Island (Lystad Bay), Marguerite Bay (Fig. 1), we report high turbidity values associated with plumes from the glacier, whose values were higher than reported data from subpolar/transition polar Antarctic climates.

中文翻译：

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南极半岛西部马蹄岛高浓度沉积物羽流

由于泥沙产量和冰川退缩之间的关联，泥沙浓度的可变性和潮水冰川融水排放的空间分布可用于阐明气候演变和冰川行为（例如 Domack & McClennen 1996）。在加速冰川消融的环境中，水柱中较高的沉积物浓度会改变 glacimarine 海岸动力学并影响生产力和海底生态系统（例如 Marín等。2013）。在南极半岛地区，融水或浑浊羽流以前被认为是罕见的或在沉积冰川环境中没有重要作用（例如 Griffith & Anderson 1989），但最近的研究表明，这是亚极地和过渡极地的普遍现象气候（Yoo等。2015，罗德里戈等。2016）。在当前的气候变化情景中，冰川加速退缩和质量损失可能会导致冰川融水越来越多地流入峡湾地区，这种情况在南极半岛尚未得到很好的评估。在这个简短的说明中，之后原位从马蹄岛 (Lystad Bay) 的主要西部潮水冰川 (Shoesmith Glacier) 南侧观察到一个不寻常的瀑布，玛格丽特湾 (图 1)，我们报告了与冰川羽流相关的高浊度值，其值为高于来自亚极地/过渡极地南极气候的报告数据。