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Study with Quizlet and memorize flashcards containing terms like *Intro*, (1) rock (2) Glaciers (3) valley, continental, (1) alpine (2) complete (3) iceberg calving and more.
With extensive illustrations and key links to online resources, Icebergs is a valuable reference for academic researchers and graduate students studying oceanography, cryospheric science, climatology and environmental science.
An iceberg is a large mass of freshwater ice that has broken off of a glacier or an ice shelf. An ice floe is a large, flat pack of floating ice. 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.
Glaciers confined within a path that directs their movements are mountain glaciers, those that spread on level ground at the foot of a glaciated region are piedmont glaciers, and those that spread from a glaciated region onto the ocean are ice shelves. Ice floes, on the other hand, are made of frozen seawater.
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). Figure 14.1.3 Fast ice (left) and pack ice (right).
Ice, which covers 10 percent of Earth's surface, is disappearing rapidly. Select a topic below to see how climate change has affected glaciers, sea ice, and continental ice sheets worldwide.
In this 2-day lesson, students will analyze Arctic sea ice data similarly to how MOSAiC scientists did to find a suitable ice floe for a similar Arctic research expedition. Photo Credit: Sebastian Grote. Lesson Overview.
