
Glaciers - National Snow and Ice Data Center
What is a glacier? A glacier is an accumulation of ice and snow that slowly flows over land. At higher elevations, more snow typically falls than melts, adding to its mass. Eventually, the …
Science of Glaciers | National Snow and Ice Data Center
The Taylor Glacier is an Antarctic glacier about 54 kilometers (34 miles) long, flowing from the plateau of Victoria Land into the western end of Taylor Valley. — Credit: Eli Duke/Flickr. Valley …
Why Glaciers Matter - National Snow and Ice Data Center
Glacier melt delivers nutrients into lakes, rivers, and oceans. Those nutrients can drive blooms of phytoplankton—the base of aquatic and marine food chains. Meanwhile, gradual glacier melt …
Glacier Photograph Collection - NSIDC
The Glacier Photograph Collection is an online, searchable collection of glacier photographs, mostly in the Rocky Mountains, the Pacific Northwest, Alaska, and Greenland. Photographs …
World Glacier Inventory - NSIDC
Glacier number Glacier Parameters Search Search by geographic cooridnates (lat/lon), altitude/size/length, data contributor, and glacier features such as primary class, form, frontal …
Ice Sheet Quick Facts | National Snow and Ice Data Center
Is an ice sheet different from a glacier? Ice sheets are much larger than glaciers. An ice sheet is a mass of glacial land ice, extending more than 50,000 square kilometers (20,000 square miles). …
GLIMS - National Snow and Ice Data Center
The GLIMS Glacier Database enables scientists to map how glaciers have changed over time, allowing them to better understand the impacts these changes will have on water resources, …
Learn - National Snow and Ice Data Center
Quick facts, basic science, and information about snow, ice, and why the cryosphere matters The cryosphere includes all of the snow and ice-covered regions across the planet.
Ice Sheets Today - National Snow and Ice Data Center
Mar 25, 2025 · Melting on the Antarctic Ice Sheet for the 2024 to 2025 season began with above average melt extents in all regions, but melt extent dropped to nearly zero or below average …
What are glacial lakes? | National Snow and Ice Data Center
Feb 15, 2022 · In spring 1986, Hubbard Glacier in Alaska surged and blocked the outlet of Russell Fjord, entrapping a large lake. Over the summer, snowmelt continued to fill the lake. In …