Randolph Glacier Inventory - A Dataset of Global Glacier Outlines, Version 4

The Randolph Glacier Inventory (RGI) is a global set of glacier outlines, it is intended as a snapshot of the world’s glaciers. This data set provides a single outline for each glacier and is produced in coordination with the Global Land Ice Measurements from Space (GLIMS) initiative.The RGI is not suitable for measuring glacier-by-glacier rates of area change, but can be used to estimate glacier volumes, rates of elevation change at regional and global scales, and cryospheric responses to climatic forcing.

Glacier mapping data are contributed to both GLIMS and the RGI from the glaciological community. RGI is produced by the Working Group on the Randolph Glacier Inventory and Infrastructure for Glacier Monitoring, a body of the International Association of Cryospheric Sciences (IACS). This data set is updated approximately annually.

Glacier outlines are distributed as Shapefiles. Hypsometric data (CSV files) and gridded auxiliary data (GeoTIFFs) are also available. All RGI data are packaged globally and by region, with regions based upon the Global Terrestrial Network for Glaciers.

兰多夫冰川目录（Randolph Glacier Inventory, RGI）是一套全球冰川轮廓数据集，旨在呈现全球冰川的现状快照。该数据集为每一条冰川提供唯一轮廓，其编制与太空全球陆地冰测量计划（Global Land Ice Measurements from Space, GLIMS）协同开展。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，以及冰冻圈对气候强迫的响应。

冰川测绘数据由冰川学学界共同提交至GLIMS与RGI。RGI由国际冰冻圈科学协会（International Association of Cryospheric Sciences, IACS）下属的兰多夫冰川目录与冰川监测基础设施工作组编制，该数据集约每年更新一次。

冰川轮廓以形状文件（Shapefiles）格式分发，同时还提供高程面积分布数据（CSV文件）与网格化辅助数据（GeoTIFFs）。所有RGI数据按全球及区域进行打包，区域划分依据全球冰川陆地观测网（Global Terrestrial Network for Glaciers）。