NOAA/WDS Paleoclimatology - Hughes - Sonmarg - ABPI - ITRDB INDI005

Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives. Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets. Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll

本数据集所用数据源自国际树木年轮数据库（International Tree Ring Data Bank）与古气候学世界数据中心（World Data Center for Paleoclimatology）的归档资源。多数数据集包含原始树木年轮测量数据，其中绝大多数为逐年年轮宽度，部分数据集涵盖早材宽度、晚材宽度或木材密度的测量结果；同时附带年轮年表，即基于多份树木年轮样本整合得到的标准化站点生长指数。部分数据集还包含气候变量的重建结果。各类数据均单独存储于独立数据文件中，文件名已编码标注对应数据类型。详细信息请参阅：http://www.ncdc.noaa.gov/paleo/treeinfo.htmll