Landsat 9 satellite captured the upside-down iceberg near the Amery Ice Shelf in Prydz Bay, Antarctica.
In this part of the continent, the Lambert Glacier flows from the land and spreads out over the sea, forming part of the Amery Ice Shelf (located south of this image). Pieces occasionally break off from the front of the shelf and drift away as icebergs, many of which are visible amid an expanse of sea ice. An iceberg’s glacial ice – made up of compressed snow and firn – contains air bubbles that scatter light and typically appears white like snow or bluish white. But in parts of the Amery Ice Shelf, seawater freezes to the underside of the shelf, hundreds of meters below the surface. The frozen seawater is free of bubbles and takes on the color of the water and its impurities.
The local scenery on the ground is as follows.
Reference: NASA Earth’s Tweet
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