A compilation of the published literature on dust content in terrestrial and marine sediment cores was synchronized with pollen data and speleothem growth phases on the Greenland Ice Core Chronology 2005 (GICC05) time axis. Aridity patterns for eight key areas of the global climate system have been reconstructed for the last 60 000 years. These records have different time resolutions and different dating methods, i.e. different types of stratigraphy. Nevertheless, all regions analysed in this study show humid conditions during early Marine Isotope Stage 3 (MIS3) and the early Holocene or deglaciation, but not always at the same time. Such discrepancies have been interpreted as regional effects, although stratigraphic uncertainties may affect some of the proposed interpretations. In comparison, most of the MIS2 interval becomes arid in all of the Northern Hemisphere records, but the peak arid conditions of the Last Glacial Maximum (LGM) and Heinrich event 1 differ in duration and intensity among regions. In addition, we also compare the aridity synthesis with modelling results using a global climate model (GCM). Indeed, geological archives and GCMs show agreement on the aridity pattern for the Holocene or deglaciation, for the LGM and for late MIS3.

中文翻译：

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过去6万年来全球气候系统八个选定关键区域的干旱综合

在2005年格陵兰冰芯年代年表（GICC05）的时间轴上，已出版的有关陆地和海洋沉积物芯中粉尘含量的文献汇编与花粉数据和鞘粉菌的生长期同步。在过去的60 000年中，已经重建了全球气候系统八个关键区域的干旱模式。这些记录具有不同的时间分辨率和不同的测年方法，即不同类型的地层。然而，本研究中分析的所有区域在海洋同位素第3阶段（MIS3）早期和全新世或冰期早期均显示出潮湿状态，但并非总是同时出现。尽管地层不确定性可能会影响某些拟议的解释，但这种差异已被解释为区域效应。相比下，在北半球的所有记录中，大多数MIS2间隔都变得干旱了，但是最后冰川期（LGM）和海因里希事件1的高峰干旱条件的持续时间和强度在不同地区之间是不同的。此外，我们还将干旱综合与使用全球气候模型（GCM）的建模结果进行比较。确实，地质档案和GCM在全新世或冰消期，LGM和后期MIS3的干旱模式上显示出一致性。