Matched pairs differences between observed δ18O values and predicted δ18O values from Eq (3), sorted by year.

P is probability of the null hypothesis being true; there is no significant difference between the observed and expected δ18O values. P values and N (sample number) in italics are samples collected north of Bering Strait.

P为原假设成立的概率，即观测值与预期δ18O值之间无显著差异。以斜体标注的P值与N（样本量）所对应的样本采集自白令海峡（Bering Strait）以北。