1000-2000年北半球温度代用资料

根据PAGES2k Consortium在2017年所发布的全球代用资料数据集，从中筛选出年分辨率、北半球、时间连续（无缺测值）的代用资料原始数据，数据包括树轮(370条)、冰芯（15条）、湖泊沉积物（9条）、历史文献（2条）等等。其中，树轮资料包括的代用指标有树轮宽度和密度；冰芯资料包括的代用指标包括氧同位素；湖泊沉积物资料的代用指标为氧同位素；历史文献的代用指标为重建的气温序列。树轮资料类型用1表示，冰芯资料类型用2表示，湖泊沉积物资料类型用3表示，历史文献资料类型用4表示。数据保存格式为Matlab自带的数据格式（.mat），通过在Matlab软件中打开。

Based on the global proxy dataset released by the PAGES2k Consortium in 2017, original proxy data with annual resolution, located in the Northern Hemisphere and featuring fully continuous time series (no missing values) were screened out. The dataset includes 370 tree ring records, 15 ice core records, 9 lake sediment records, 2 historical document records, and other proxy data. Specifically, tree ring data covers two proxy indices: tree ring width and tree ring density; ice core data uses oxygen isotopes as its proxy indicator; lake sediment data adopts oxygen isotopes as its proxy indicator; and historical document data provides reconstructed temperature sequences. A categorical type code is assigned to each data type: 1 for tree ring data, 2 for ice core data, 3 for lake sediment data, and 4 for historical document data. All data is stored in the native Matlab format (.mat) and can be opened using the Matlab software.

搜集汇总

背景与挑战

背景概述

该数据集是基于PAGES2k Consortium 2017年全球代用资料筛选出的北半球温度代用资料，时间覆盖1000-2000年，包含树轮、冰芯、湖泊沉积物和历史文献等多种代用类型，共396条连续年分辨率数据，用于过去千年温度重建研究。数据以Matlab的.mat格式存储，由中国科学院西北生态环境资源研究院发布，便于气候历史分析。