Calibration and verification statistics indicate proxy/target agreement on all frequency domains.

Correlation coefficients of 12 proxy/target pairings, independently computed over different split periods and frequency domains, and for unfiltered and 20-year low- and high-pass filtered data range from 0.70–0.96 with a mean of 0.83 (p[48] statistics range from 1.42–2.10 (Table S3), and RE/CE statistics range from 0.45–0.64/0.38–0.61.

本数据集包含12组代理指标-目标配对（proxy/target pairings）的相关系数，所有相关系数均基于不同划分时段、频域，以及未滤波、20年低通与高通滤波的数据独立计算得出，其取值范围为0.70~0.96，均值为0.83；其中p[48]统计量的取值范围为1.42~2.10（详见附表S3），RE/CE统计量的取值范围分别为0.45~0.64与0.38~0.61。