Glaciology

Understanding Glacier Grounding Lines
Grounding lines are the boundaries where glaciers and ice sheets transition from resting on solid ground to floating on seawater.

The Rise of Proglacial Lakes
Glacial retreat in Alaska's Yakutat Foreland has fueled rapid growth of proglacial lakes, doubling their size in 40 years as seen in Landsat imagery.

Venezuela Becomes the First Country to Lose its Glaciers
Venezuela became the first country to lose all of its glaciers as the last remaining ice on Pico Humboldt shrank to less than two hectares.

Understanding Fast Ice in Polar Ecosystems and Climate Dynamics
Fast ice, found in both polar regions, is sea ice that attaches to coasts, icebergs, ice shelves, or the ocean floor.

Nunataks: Glacial Islands
Nunataks are isolated mountain peaks emerging above ice sheets in polar and high-altitude regions.