NOAA/WDS Paleoclimatology - Schweingruber - Khadutte River - LASI - ITRDB RUSS092

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银行（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。多数数据集包含原始树木年轮（Tree Ring）测量数据：其中绝大多数为逐年年轮宽度数据，另有部分数据集收录早材（earlywood）宽度、晚材（latewood）宽度或木材密度（wood density）测量结果；此外还包含树木年轮年表（chronologies），即由多个树木年轮样本汇编得到的对应研究站点的标准化生长指数。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，数据类型编码内嵌于文件名中。详情请参阅：http://www.ncdc.noaa.gov/paleo/treeinfo.htmll