Global Stable Isotope Dataset for Surface Water

The Dataset consists of three main elements: website data (GNIR data, http://nucleus.iaea.org/wiser/explore, water isotopes website, http://wateriso.utah.edu/waterisotopes), measured data and references data. The dataset encompasses 22389 surface water sampling sites across seven continents. Since 2015, an ecohydrological observation system has been implemented in the Shiyang River Basin in the arid zone of Northwest China to systematically gather surface water stable isotope data, serving as the primary source of measured data. The improvements in isotopic data v1.1 are mainly to remove some duplicates and incorrect data.

本数据集包含三大核心组成部分：网站数据（含GNIR数据，访问链接为http://nucleus.iaea.org/wiser/explore；水同位素网站数据，访问链接为http://wateriso.utah.edu/waterisotopes）、实测数据与参考文献数据。本数据集覆盖全球七大洲共计22389个地表水采样点位。自2015年起，中国西北干旱区石羊河流域已部署生态水文观测系统，系统性采集地表水稳定同位素数据，该部分数据为本数据集实测数据的核心来源。同位素数据v1.1版本的优化内容主要为剔除部分重复数据与错误数据。

搜集汇总

背景与挑战

背景概述

该数据集是一个全球地表水稳定同位素数据集，涵盖七个大洲的22389个采样点，主要数据来源于中国西北石羊河流域的系统观测。数据集整合了网站数据、实测数据和参考文献，并经过严格的质量控制，包括重复数据删除和异常值处理，适用于水文和生态研究。