NOAA/WDS Paleoclimatology - Bigler - Cameron Pass - PCEN - ITRDB CO633

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

本数据集源自国际树木年轮数据库（International Tree Ring Data Bank）与世界古气候学数据中心（World Data Center for Paleoclimatology）的档案馆藏。多数数据集包含树木年轮原始测量数据：其中绝大多数为逐年年轮宽度，另有部分数据集收录早材（earlywood）宽度、晚材（latewood）宽度或木材密度数据；同时还包含树轮年表，即由多个树木年轮样本汇编得到的单站点标准化生长指数。部分数据集还附带气候变量重建结果。每种数据类型均存储于独立的数据文件中，且文件名中编码了对应的数据类型。详细信息请参阅：http://www.ncdc.noaa.gov/paleo/treeinfo.htmll