Abstract The millennial- and centennial-scale variability of Holocene climate in arid central Asia (ACA) is poorly understood, due to the lack of high-resolution records, especially of temperature. We present a high-resolution (~45-yr) peat α-cellulose δ13C record spanning the last ~11,030 years from a well-dated peat core (ATM10-C7) from the Altai Mountains in ACA. It is interpreted as a summer temperature record and exhibits millennial- and centennial-scale variability. The millennial-scale variability corresponds well to North Atlantic ice rafting events, implying a climatic link between the North Atlantic and the ACA via the Westerlies. The centennial-scale cold events were synchronous with stages of low solar activity. Spectral and cross-spectral analyses demonstrate that summer temperature and solar activity have a common cyclicity, and we therefore suggest that solar activity was the fundamental driver of the centennial-scale variability of summer temperature in ACA during the Holocene.

中文翻译：

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干旱的中亚全新世夏季气温与千年尺度的北大西洋气候事件有关，并受百年尺度的太阳活动驱动

摘要 由于缺乏高分辨率记录，尤其是温度记录，人们对中亚干旱地区 (ACA) 全新世气候的千年和百年尺度变化知之甚少。我们提供了一个高分辨率（~45 年）泥炭 α-纤维素 δ13C 记录，跨越过去~11,030 年来自 ACA 阿尔泰山脉的一个年代久远的泥炭核心（ATM10-C7）。它被解释为夏季温度记录，并表现出千年和百年尺度的变化。千禧年尺度的变化与北大西洋冰筏漂流事件很好地对应，这意味着北大西洋和 ACA 之间通过西风带的气候联系。百年规模的寒冷事件与低太阳活动阶段同步。光谱和交叉光谱分析表明，夏季温度和太阳活动具有共同的周期性，