NOAA/WDS Paleoclimatology - Dean - Turkey Springs - PIPO - ITRDB NM029

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

本数据集所用数据取自国际树木年轮数据库（International Tree Ring Data Bank）及古气候学世界数据中心（World Data Center for Paleoclimatology）的存档馆藏。多数数据集包含树木年轮原始测量数据，以逐年年轮宽度为主要测量项，部分集合涵盖早材宽度、晚材宽度或木材密度参数；同时附带年轮年表（chronologies），即由多份树木年轮样本整合得到的对应地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。每一类数据均单独存储于一个数据文件中，数据类型通过文件名进行编码标识。详细信息请参阅：http://www.ncdc.noaa.gov/paleo/treeinfo.htmll