Randolph Glacier Inventory - A Dataset of Global Glacier Outlines, Version 7

The Randolph Glacier Inventory (RGI) is a global set of glacier outlines intended as a snapshot of the world’s glaciers outside of ice sheets. It provides a single outline for each glacier from approximately the year 2000, as well as a set of attributes and other relevant auxiliary information. Glacier outlines are distributed as Shapefiles. Hypsometric data and attributes (CSV files) and metadata (json) are also available. All RGI data are packaged both globally and by region (as defined by the Global Terrestrial Network for Glaciers (GTN-G) Glacier Regions).

The RGI is not suitable for measuring glacier-by-glacier rates of area change. However, it can be used to estimate glacier volumes; rates of elevation change at regional and global scales; and glacier responses to climatic forcing.

RGI version 7.0 was developed by the “Working Group on the Randolph Glacier Inventory (RGI) and its role in future glacier monitoring” of the International Association of Cryospheric Sciences (IACS). The glaciological community contributes glacier mapping data to the Global Land Ice Measurements from Space (GLIMS) database. A subset of the glacier outlines in GLIMS are then extracted and reprocessed to produce the RGI.

See the RGI documentation under \"User Guide\" (below) for more information.

Randolph冰川目录（Randolph Glacier Inventory, RGI）是一套全球冰川轮廓数据集，旨在呈现冰盖以外全球冰川的现状快照。该数据集为每条冰川提供大致对应2000年的单一轮廓，并附带一系列属性信息与相关辅助资料。冰川轮廓以Shapefile格式分发，同时还提供高程分区数据与属性数据（CSV文件）以及元数据（JSON格式）。所有RGI数据均按全球范围和区域范围（按全球冰川陆地网络（Global Terrestrial Network for Glaciers, GTN-G）划定的冰川区域）进行打包。

RGI不适用于逐冰川测算面积变化速率，但可用于估算冰川体积、区域及全球尺度的高程变化速率，以及冰川对气候强迫的响应。

RGI 7.0版本由国际冰冻圈科学协会（International Association of Cryospheric Sciences, IACS）下设的“Randolph冰川目录工作组（RGI及其在未来冰川监测中的作用）”开发。冰川学界向全球陆地冰空间测量（Global Land Ice Measurements from Space, GLIMS）数据库提交冰川测绘数据，随后从中提取GLIMS的部分冰川轮廓并进行重新处理，最终生成RGI。

更多详细信息请参阅下文“用户指南”中的RGI文档。