巴基斯坦喀喇昆仑Honboro Kangri冰芯氧同位素、氢同位素、过量氘和积累量数据集（1998-2018）

Honboro Kangri冰川地处巴基斯坦喀喇昆仑地区，其区域气候主要受中纬度西风环流影响。2018年11-12月，中国科学院青藏高原研究所徐柏青课题组在该冰川成功钻取了长度为38.6米的冰芯（简称Hushe冰芯；35.415°N，76.199°E）。本数据集着重提供了Hushe冰芯样品的氧同位素、氢同位素、过量氘和积累量数据。冰芯氧同位素和氢同位素数据测试所用仪器为激光光腔衰荡光谱仪（L2130‐i Cavity Ring‐Down Spectrometer，美国Picarro公司），测试分析在青藏高原地球系统与资源环境全国重点实验室完成。这一数据集完整记录了1998年至2018年间喀喇昆仑地区温度和降水的变化特征，揭示了降温与降水增加可能是喀喇昆仑冰川异常的原因。这些结果为预测未来喀喇昆仑冰川质量变化特征提供了新见解。

The Honboro Kangri Glacier is located in the Karakoram region of Pakistan, where the regional climate is mainly affected by the mid-latitude westerly circulation. From November to December 2018, the research group led by Prof. Baiqing Xu from the Institute of Tibetan Plateau Research, Chinese Academy of Sciences, successfully drilled a 38.6-meter-long ice core (designated as the Hushe Ice Core; 35.415°N, 76.199°E) at this glacier. This dataset primarily provides oxygen isotope, hydrogen isotope, deuterium excess, and accumulation data from the Hushe Ice Core samples. The oxygen and hydrogen isotope analyses of the ice core were conducted using a L2130-i Cavity Ring-Down Spectrometer (Picarro Inc., USA), and all laboratory measurements were completed at the State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment. This dataset comprehensively documents the temporal variations of temperature and precipitation in the Karakoram region between 1998 and 2018, and reveals that cooling and increased precipitation likely underlie the anomalous stability of Karakoram glaciers. These findings offer novel insights for predicting future mass changes of Karakoram glaciers.

搜集汇总

背景与挑战

背景概述

该数据集提供了1998年至2018年巴基斯坦喀喇昆仑Honboro Kangri冰川冰芯的氧同位素、氢同位素、过量氘和积累量数据，时间分辨率为年，空间位置为单点（35.415°N, 76.199°E）。数据源自38.6米长的Hushe冰芯，用于分析喀喇昆仑地区温度与降水变化，揭示冰川异常可能与降温及降水增加有关，为预测未来冰川质量变化提供依据。