The influence of the North Atlantic on the margins of Europe means the region is particularly sensitive to changes in the ocean–atmospheric system. During the Last Glacial–Interglacial Transition (16–8 cal ka bp) this system was repeatedly disrupted, leading to a series of abrupt and short‐lived shifts in climate. Despite much research, the number and magnitude of these ‘centennial‐scale’ events is not well understood. To address this, we expand upon investigations at Quoyloo Meadow, Orkney, Scotland, one of the best chronologically constrained palaeoclimate records in northern Britain. By coupling stable isotope and chironomid fossil analyses with existing data, this study identifies multiple phases of centennial‐scale disturbance at: c. 14.0, 11.1, 10.8, 10.5, 10.45 and 10.3 cal ka bp, with the events at 14.0 and 10.3 exhibiting a particularly pronounced cold‐climate signature. During the Holocene, the strongest response to climate forcing was at c. 10.3–10.0 cal ka bp, expressed as a two‐stage drop in mean July temperatures, a shift in pollen spectra indicative of ‘less‐stable’ climatic regimes, and a depletion in δ¹⁸O values. We interpret this as the first reliably dated incidence of the ‘10.3‐ka event’ in the British Isles and consider the wider impact of this climatic reversal in other Holocene records.

中文翻译：

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来自苏格兰奥克尼Quoyloo Meadow的百年尺度晚冰期和全新世早期气候复杂性的证据

北大西洋对欧洲边缘的影响意味着该地区对海洋-大气系统的变化特别敏感。在上一次冰期至冰期过渡期间（16-8 cal ka  bp），该系统反复遭到破坏，导致了一系列突然而短暂的气候变化。尽管进行了大量研究，但对这些“百年纪念”事件的数量和严重程度仍知之甚少。为了解决这个问题，我们扩大了在苏格兰奥克尼郡Quoyloo Meadow进行的调查的时间，这是英国北部按时间顺序最好的古气候记录之一。通过将稳定同位素和手性化石分析与现有数据相结合，本研究确定了c处百年尺度扰动的多个阶段。14.0、11.1、10.8、10.5、10.45和10.3卡路里bp，在14.0和10.3处的事件表现出特别明显的寒冷气候特征。在全新世期间，对气候强迫的最强烈反应是在c。10.3-10.0 CALかbp的，表示为平均七月温度两个阶段的下降，在指示“少稳定”气候状况，并以δ耗尽的花粉光谱的移位¹⁸ O值。我们将其解释为不列颠群岛“ 10.3-ka事件”的首个可靠日期，并考虑了这种全新世代气候变化对更广泛影响。