Search results
The difference between the two is that most of the ice floe’s mass is above the water’s surface, while about 90% of an iceberg’s mass is underwater.
When sunlight shines on a field of snow, it reflects a bright—even blinding—white. But if you get a good look at the leading edge of a glacier, you’ll find that the ice inside is a brilliant blue. The surface may look white, but places where the ice has cracked open look almost turquoise.
24 paź 2019 · Long wavelength light (e.g., red) is absorbed, so the ice appears blue or blue-green. An ice cube appears clear or white, but a large volume of ice (or liquid water) is blue. Icebergs typically appear white because their surfaces may be coated with snow or else weathered so they reflect light.
Fast ice, or land-fast ice, refers to the large, solid ice sheets that are attached to land. The pack ice consists of the smaller, free-floating pieces of sea ice. They may have formed independently, or may have broken off from the fast ice (Figure 14.1.3).
18 sie 2022 · The difference between sea ice and ice shelves is that sea ice is free-floating; the sea freezes and unfreezes each year, whereas ice shelves are firmly attached to the land.
Floes are subdivided according to horizontal extent as follows: Small: 20-100 m across. Medium: 100-500 m across. Big: 500-2,000 m across. Vast: 2-10 km across. Giant: Greater than 10 km across. Fast Ice: Ice which forms and remains fast along the coast.
Sea ice forms, grows, and melts in salty ocean water. This sets it apart from other forms of ice like icebergs, glaciers, and lake and river ice. Icebergs and glaciers form from snow falling on land. Lake and river ice from fresh water.
