Worldwide glacier outlines database (GLIMS)
What it measures. A worldwide catalog of glacier outlines and how their size is changing, covering the planet's roughly 200,000 mountain glaciers and ice caps, built up from contributions by many research institutions.
How it's made. Compiled from satellite imagery (the ASTER instrument on Terra and the Landsat satellites) plus historical records, organized through a network of regional coordinators.
How & where you'd use it. A reliable reference for scientists, students, and the public to study glacier shrinkage and climate change, downloadable in common mapping formats.
What's measured
Coverage & cadence
- Time span1850-01-01 → ongoing
- Measured byLANDSAT-7 (ETM+) · Terra (ASTER)
- Processing levelLevel 3
- Spatial extent-180, -90, 180, 90
- FormatsWMS, WFS, GML, ASCII, Shapefile, KML
- StatusACTIVE
What you can do with it
- Measure sea ice, snow cover and glaciers
- Watch ice-sheet elevation change
- Track freeze/thaw and permafrost
Official description
Global Land Ice Measurements from Space (GLIMS) is an international initiative with the goal of repeatedly surveying the world's estimated 200,000 glaciers. GLIMS uses data collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument aboard the Terra satellite and the LANDSAT series of satellites, along with historical observations. The GLIMS initiative has created a unique glacier inventory, storing information about the extent and rates of change of all the world's mountain glaciers and ice caps. The GLIMS Glacier Database was built up from data contributions from many glaciological institutions, which are managed by Regional Coordinators, who coordinate the production of glacier mapping results for their particular region. The GLIMS Glacier Database provides students, educators, scientists, and the public with reliable glacier data from these analyses. New glacier data are continually being added to the database. The GLIMS Glacier Viewer was developed to provide the public with easy access to the GLIMS Glacier Database. This Web application allows users to view and query several thematic layers, including glacier outlines, Regional Coordinator institution locations, the World Glacier Inventory, and more. GLIMS data can be downloaded into a number of GIS-compatible formats, including ESRI Shapefiles, MapInfo tables, Geographic Mark-up Language (GML), and Keyhole Mark-up Language (KML) suitable for viewing in Google Earth.
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="NSIDC-0272",
version="1",
bounding_box=(-122.5, 37.2, -121.8, 37.9), # your area (W,S,E,N)
temporal=("2024-01-01", "2024-12-31"), # your dates
)
files = earthaccess.open(results) # stream straight from NSIDCV0 Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. Official links
- Quickly download a few files using a web browser, or access data through a command-line utility such as WGET. GET DATA
- Find more data access options and help resources. VIEW RELATED INFORMATION
- GLIMS Glacier Database, Version 1 User Guide VIEW RELATED INFORMATION
- GLIMS Glacier Database V1 Change Log (27 January 2026) VIEW RELATED INFORMATION