Frost Line Depth in Antarctica

Antarctica, the coldest continent, has an average ice sheet thickness of 2,160 m (7,087 ft), with the deepest point at Bentley Subglacial Trench (2,555 m / 8,383 ft below sea level). The frost line—depth where ground remains frozen year-round—varies by location and season. It is shallower near coasts, deeper inland, and shallower in sandy vs. rocky soil. On average, the frost line is about 1 meter (3 feet) deep.