NASA's iceberg data includes current and historical measurements useful for mapping icebergs, glaciers that calve them, and their characteristics.
The embedded view above shows a series of false-color corrected reflectance images of iceberg A23A in the Southern Ocean, Antarctica. Press "Play" in the lower left corner of the embedded map to watch iceberg A23A move through the Southern Ocean.
When a piece of a glacier breaks off, it's called calving, and results in an iceberg.
The animation above shows a series of true-color corrected reflectance images from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard the Terra platform of Iceberg A23A moving toward South Georgia Island in Antarctica. Press the "Play" button in the lower left corner to view the animation spanning the dates , to . A23A is currently the ...
NASA's true-color corrected reflectance image of Iceberg A23A and iceberg A23F was captured on , from the MODIS instrument aboard the Aqua satellite.
Iceberg A23A was captured in this false-color corrected reflectance (Bands 7-2-1) image from the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua platform on . The iceberg, the big blue object southwest of the island, has run aground near South Georgia Island in Antarctica .
Iceberg A23A, which grounded in early March, is the rectangular feature in the center of the image. Iceberg A23C, which broke off in mid-April, can be seen on the right side of the image. This before-and-after comparison shows Iceberg A23C breaking off Iceberg A23A between April 11 and April 12. Iceberg A23C is almost 20km in length and 8km in ...
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 ...