- Glacier Quick Facts | National Snow and Ice Data Center
What is a glacier? A glacier is an accumulation of ice and snow that slowly flows over land Alpine glaciers are frozen rivers of ice, slowly flowing under their own weight down mountainsides and into valleys Ice sheets exist only on Greenland and Antarctica, and they spread out in broad domes in multiple directions
- 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 surplus of built-up ice begins to flow downhill At lower elevations, there is usually a higher rate of melt or icebergs break off that removes ice mass Alpine glaciers are frozen rivers of ice, slowly
- Science of Glaciers | National Snow and Ice Data Center
Science What is the lifecycle of a glacier, and what factors influence its lifecycle? The amount of precipitation, whether in the form of snowfall, freezing rain, avalanches, or wind-drifted snow, is important to glacier survival
- 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 sustains stream habitats for plants and animals So, glaciers often have an indirect impact on wildlife and fisheries
- GLIMS - National Snow and Ice Data Center
The glacier database includes measurements of glacier geometry, glacier area, snowlines, supraglacial lakes and rock debris, and other glacial attributes, as well as browse images The collection includes data from approximately 70 percent of the world's 200,000 glaciers, and new glaciers are continually added
- World Glacier Inventory - NSIDC
The World Glacier Inventory (WGI) contains information for over 130,000 glaciers Inventory parameters include geographic location, area, length, orientation, elevation, and classification The WGI is based primarily on aerial photographs and maps with most glaciers having one data entry only Hence
- World Glacier Inventory - NSIDC
Glacier Parameters Search Search by geographic cooridnates (lat lon), altitude size length, data contributor, and glacier features such as primary class, form, frontal characteristic, longitudinal profile, major source of nourishment, and tongue activity
- 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 were taken from the air and ground The dates of the photographs range from the 1800s to the present day
|