Blue-ring and ring-width data from bristlecone pine (Pinus longaeva), White Mountains, California (900–2014 CE)

This dataset supports the manuscript “A 1100-Year Blue-Ring Record Reveals Sub-Annual Cooling Events Hidden in Tree-Ring Width Chronologies” accepted by Geophysical Research Letters (2025). The dataset contains ring-width (RW) and blue-ring (BR) data derived from bristlecone pine (Pinus longaeva) sampled in the White Mountains, California (USA). Measurements span the period 900–2014 CE and were used to construct the 1100-year BR chronology described in the paper. Data description:• RW: Ring-width measurements in micrometres (µm); value 0 = missing ring; null = broken/missing/undatable section.• FR type: information colour-coded, please refer to README• BR type: information colour-coded, please refer to README File format: Microsoft Excel (.xlsx) License: CC BY-NC 4.0 International (Creative Commons Attribution–NonCommercial). For questions about data usage or interpretation, please contact the corresponding author ([e-mail]).本数据集支持已被《地球物理研究通讯》(Geophysical Research Letters) 接收的2025年学术论文《一项1100年蓝轮记录揭示树木年轮宽度年表中隐藏的次年度降温事件》。 本数据集包含采自美国加利福尼亚州怀特山脉的大盆地狐尾松（Pinus longaeva）的年轮宽度（ring-width, RW）与蓝轮（blue-ring, BR）数据。测量时段覆盖公元900年至2014年，被用于构建论文中所述的1100年蓝轮年表。 数据说明： • 年轮宽度（RW）：以微米（µm）为单位的测量值；数值0代表缺失年轮；空值（null）代表样本断裂、缺失或无法定年的区段。 • FR类型：相关信息采用颜色编码，请参阅README文档。 • BR类型：相关信息采用颜色编码，请参阅README文档。 文件格式：微软Excel（.xlsx）格式。 许可协议：知识共享署名-非商业性使用4.0国际许可协议（CC BY-NC 4.0 International）。 若对数据使用或解读存在疑问，请联系通讯作者（[e-mail]）。