Antarctic Meteorological Research and Data Center

Iceberg Images

Quadrant A: 0°-90°W

Quadrant C: 180°-90°E

Quadrant B: 90°W-180°

Quadrant D: 90°E-0°

Antarctic icebergs are named based off of two things:

  1. Where an iceberg calves off from around the continent
  2. What number iceberg it is that has calved off in the area it originated from

The continent is split up into 4 quadrants A, B, C, and D where:
A is from 0°-90°W
B is from 90°W-180°
C is from 180°-90°E
D is from 90°E-0°

For example, in February 2021, an iceberg calved off of the Brunt Ice Shelf and was named A-74 since it originated in quadrant A and was the 74th iceberg to calve in that quadrant since records began. For more information about naming classification, visit the U.S. National Ice Center webpage.

Above are satellite images that show icebergs from different ice shelves at different times to see how they move on the ocean surface.