US ITASE Stable Isotope Data, Antarctica

This data set includes stable isotope measurements from snow pits, firn, and ice cores collected by the the US component of the International Trans-Antarctic Scientific Expedition ( ITASE). The ITASE program aims to collect and interpret a continental-wide array of environmental parameters assembled through the coordinated efforts of scientists from several nations.

These data were collected between 1999 and 2007. The data have been compiled into single files for each sampling site, though in some cases a file contains data from more than one ice core or snow pit. Each file in the data set includes deuterium/hydrogen (δD) and/or 18-oxygen/16-oxygen (δ18O) ratios, depths, and in some cases ice age or other information. Further details regarding the data are provided in each data file. Data are available via FTP in ASCII text format (.txt). Data were collected during five Antarctic field seasons from 1999 to 2007. Data from 1999 to 2002 are currently available. Data from 2003 to 2007 will be added in the future.

本数据集包含由国际横穿南极科学考察计划（International Trans-Antarctic Scientific Expedition, ITASE）美国分队采集的雪坑、粒雪与冰芯的稳定同位素测定数据。该考察计划旨在通过多国科学家的协同合作，采集并解析覆盖整个南极大陆的一系列环境参数。
本次数据采集工作开展于1999年至2007年间。数据已按采样站点整理为单个数据文件，不过部分文件会包含多个冰芯或雪坑的测量数据。
每个数据文件均包含氘/氢（δD）及/或氧-18/氧-16（δ¹⁸O）同位素比值、深度信息，部分文件还会附带冰龄或其他相关数据。
数据的更多详细说明可查阅各数据文件本身。
数据以ASCII文本格式（.txt）通过文件传输协议（File Transfer Protocol, FTP）对外开放获取。
本次数据采集工作覆盖1999年至2007年间的5个南极野外考察季。
目前仅可获取1999年至2002年的数据集。
2003年至2007年的数据将在后续补充上线。