Compilation of proxy data from paleoclimate archives of South America

Compilation of 149 published vegetation and hydroclimate records with their respective references. It is updated compilation of hydroclimate records from tropical South America made by Zhang et al. (2016). We considered all their records that cover the Last Glacial Maximum and added new ones, published since then, that showed vegetation, hydroclimate and environmental reconstructions. Original chronologies of all paleorecords were used. To evaluate the dating quality of the compiled records, we applied a chronological reliability index (CRI). In order to compare the results from the compilation with model simulations, we defined categories for precipitation and vegetation (biome) changes based on the original interpretations of the authors. In the case of precipitation, anomalies are expressed as the difference between LGM and present time, and the categories are "drier", "wetter" and "unclear". Also for vegetation anomalies are expressed as the difference between LGM and present time, and the categories are "change", "no change" and "unclear".

本数据集整合了149篇已发表的植被与水文气候记录，并附带对应的参考文献。本数据集是对Zhang等人（2016）整理的热带南美洲水文气候记录的更新汇编。我们保留了其中所有覆盖末次冰盛期（Last Glacial Maximum）的记录，并补充了此后发表的、涉及植被、水文气候与环境重建的新记录。本数据集沿用所有古气候记录的原始年代序列。为评估整合记录的定年质量，我们采用了年代学可靠性指数（chronological reliability index, CRI）。为将本数据集的整合结果与模型模拟结果进行对比，我们依据原作者的解释，对降水与植被及生物群区（biome）变化设定了分类标准。就降水而言，异常值以末次冰盛期与现代的差值表示，分类标准分为“更干旱”“更湿润”与“不明确”三类。植被异常值同样以末次冰盛期与现代的差值表示，分类标准分为“发生变化”“未发生变化”与“不明确”三类。