Compiled SST data.xlsx

Reconstructed sea surface temperatures from different oceans are relatively complex and non-uniform, meaning that it is difficult to draw comparisons. To alleviate this issue, we first objectively assess SST records based on the high-resolution and quality of the available geochronology of the alkenone unsaturation index. Then, we standardized all proxy records, by representing SST data as Z-scores.

不同大洋的重建海表温度（sea surface temperatures, SST）数据普遍具有复杂度较高、空间不均一的特征，这使得跨海域对比难以开展。为缓解该问题，本研究首先基于长链烯酮不饱和度指数（alkenone unsaturation index）的可用高分辨率地质年代学数据及其质量，对海表温度记录展开客观评估。随后，我们将所有代用指标记录进行标准化处理，即将海表温度数据转换为Z分数（Z-scores）。