The picture here is a snapshot from an animation by NASA in the article Visualizing the Quantities of Climate Change – Ice Sheet Loss in Greenland and Antarctica by Matt Conlen (3/9/2020) that shows a gigatonne of ice. A gigatonne isn’t much since
Satellite data show that Greenland and Antarctica are losing mass at a rate of 283 gigatonnes per year and 145 gigatonnes per year, respectively.
There are three animations one for 1 gigatonne, 5,000 gigatonnes (about the amount lost from the polar ice caps from 2002-2017), and 49,000 gigatones (estimate of the amount lost in the 20th century). Each animation also has an associated math box for the related calculation.