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Onset of frequent dust storms in northern China at ~AD 1100

机译：约公元1100年中国北方沙尘暴频繁发作

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Dust storms in northern China strongly affect the living and health of people there and the dusts could travel a full circle of the globe in a short time. Historically, more frequent dust storms occurred during cool periods, particularly the Little Ice Age (LIA), generally attributed to the strengthened Siberian High. However, limited by chronological uncertainties in proxy records, this mechanism may not fully reveal the causes of dust storm frequency changes. Here we present a late Holocene dust record from the Qaidam Basin, where hydrological changes were previously reconstructed, and examine dust records from northern China, including the ones from historical documents. The records, being broadly consistent, indicate the onset of frequent dust storms at ~AD 1100. Further, peaked dust storm events occurred at episodes of high total solar irradiance or warm-dry conditions in source regions, superimposed on the high background of frequent dust storms within the cool LIA period. We thus suggest that besides strong wind activities, the centennial-scale dust storm events over the last 1000 years appear to be linked to the increased availability of dust source. With the anticipated global warming and deteriorating vegetation coverage, frequent occurrence of dust storms in northern China would be expected to persist.
机译：中国北方的沙尘暴强烈影响那里的人们的生活和健康，这些尘埃可能在短时间内流遍全球。从历史上看，沙尘暴发生在寒冷时期，尤其是小冰河时期（LIA），这通常归因于西伯利亚高压的加强。但是，受代理记录中时间不确定性的限制，该机制可能无法完全揭示沙尘暴频率变化的原因。在这里，我们介绍了来自柴达木盆地的全新世晚期沙尘记录，该区域此前曾重建过水文变化，并研究了中国北方的沙尘记录，包括历史文献中的记录。大致一致的记录表明，大约在公元1100年开始了沙尘暴。此外，沙尘暴高峰发生在源区的总太阳辐照度高或暖干的情况下，而尘埃频繁的背景下LIA时期很冷。因此，我们建议，除强风活动外，过去1000年中百年规模的沙尘暴事件似乎与尘埃来源的增加有关。随着预计的全球变暖和植被覆盖程度的恶化，预计中国北方沙尘暴的频繁发生将持续下去。

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