NASA's iceberg data includes current and historical measurements useful for mapping icebergs, glaciers that calve them, and their characteristics.

The Global Land Ice Measurements from Space (GLIMS) Glacier Database provides timely data on more than 200,000 glaciers around the world.

Iceberg A23A calved from East Antarctica's Filchner–Ronne Ice Shelf in 1986. Forty years later, it is finally disappearing, and rapidly. This true-color corrected reflectance image captured on Jan. 13, 2026, by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard the Aqua platform shows the iceberg melting, turning blue, and breaking apart in the South Atlantic between ...

When a piece of a glacier breaks off, it's called calving, and results in an iceberg.

NASA's glacier and ice sheet motion data provide broad perspectives and essential details for tracking how these massive forms of land ice move.

Sea ice is concentrated largely in the Arctic and Antarctic regions, and functions as a key part of polar ecosystems. Channels within sea ice can fill with salt water and provide habitats for primary producers such as algae and plankton to thrive, which also allows larger animals to gain sustenance amid the ice. Ships hoping to navigate Arctic waters have to take sea ice into account to ensure ...

To diagnose how the ocean is melting these glaciers from below, NASA’s Oceans Melting Greenland (OMG) Earth Venture Suborbital mission is measuring seawater temperature and salinity around the entire Greenland Ice Sheet including deep inside its iceberg-laden fjords where glaciers spill out into the ocean.

Weekly feature of MODIS imagery and visualizations of Iceberg B15T in the Atlantic Ocean from the Terra satellite on 12/17/2018, available from NASA Worldview.

The largest recorded iceberg, Iceberg B-15, rivaled Connecticut in size when it calved from Antarctica’s Ross Ice Shelf in March 2000. Giant chunks eventually wandered into the Southern Ocean. Twelve years later it was gone. Ice shelves secure glaciers in place. Both birth icebergs as a natural process, much like shedding dead skin cells, but ice shelf calving does not add to sea level rise ...

View glossary terms related to the Glacier Power curriculum supplement developed by NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC).