珠穆朗玛峰地区冰雪水中氘和重氧的分布（1966-1968）

珠穆朗玛峰地区的冰雪水中氘（D）和氧-18（O18）的分布数据源于《现代冰川与地貌》（1975）科学考察报告，珠峰地区的巨大山岳冰川为该地区的河流和湖泊提供了主要的融水补给。受低纬度高山气候的影响，天然水体的同位素表征及其地球化学特征呈现出独特性。数据集中探讨了冰、雪及各类天然水中氘和氧-18的含量、分布及迁移规律。研究资料表明，由冰川冰消融补给的冰面湖水和河水在同位素组成上存在一定差异，而冰面湖水的同位素组成与冰川冰的同位素组成几乎相同。这一现象主要归因于两者所处的地理环境相似，且冰面湖常与冰及其融水共存，促进了同位素的快速交换，使得同位素组成趋于平衡。该数据集以Excel格式存储，包含1张工作簿，记录了冰、雪、水的采样地点、日期及分析结果。这些信息展示了第一次青藏科学考察数据的数字化整理成果，为进一步理解珠穆朗玛峰地区的水文特征提供了重要依据。

The distribution data of deuterium (D) and oxygen-18 (¹⁸O) in ice and snow water from the Mount Qomolangma (Everest) region is derived from the 1975 scientific expedition report *Modern Glaciers and Landforms*. The vast mountain glaciers in the Everest region provide the primary meltwater recharge for local rivers and lakes. Under the influence of the low-latitude alpine climate, the isotopic signatures and geochemical characteristics of natural waters exhibit unique features. This dataset explores the contents, distribution patterns and migration rules of deuterium and oxygen-18 in ice, snow and various types of natural waters. Research indicates that supraglacial lakes and rivers recharged by glacial ice melt show certain differences in isotopic composition, while the isotopic composition of supraglacial lakes is nearly identical to that of glacial ice. This phenomenon is mainly attributed to their similar geographical environments: supraglacial lakes often coexist with ice and their meltwater, which facilitates rapid isotopic exchange and brings the isotopic composition closer to equilibrium. This dataset is stored in Excel format, containing one worksheet that records the sampling locations, collection dates and analytical results of ice, snow and water samples. This work showcases the digital collation results of data from the First Qinghai-Tibet Scientific Expedition, providing an important basis for further understanding of the hydrological characteristics of the Mount Qomolangma region.

搜集汇总

背景与挑战

背景概述

该数据集记录了1966-1968年珠穆朗玛峰地区冰雪水中氘和氧-18的同位素分布数据，源自第一次青藏科学考察的数字化整理。数据揭示了冰川冰消融补给的冰面湖水和河水在同位素组成上的差异，并探讨了其地理环境和交换机制，以Excel格式提供采样地点、日期和分析结果，用于支持该地区水文特征研究。