- 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
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 For instance, in very dry parts of Antarctica, low temperatures are ideal for glacier growth, but the small amount of net annual precipitation causes the glaciers to grow
- Why Glaciers Matter | National Snow and Ice Data Center
Glaciers, slow-moving rivers of ice, have sculpted mountains and carved valleys throughout Earth's history They continue to flow and shape the landscape in many places today
- 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
- Global PyGEM-OGGM Glacier Projections with RCP and SSP Scenarios . . .
This data set comprises results from a hybrid glacier evolution model that uses the mass balance module of the Python Glacier Evolution Model (PyGEM) and the glacier dynamics module of the Open Global Glacier Model (OGGM) Output parameters include projections of glacier mass change, fixed runoff, and various mass balance components at regionally aggregated and glacier scales
- Sea Ice Today - National Snow and Ice Data Center
Sea ice data is updated daily, with a one-day lag On occasion, there is data delay which is usually resolved within a few days The orange line in extent and concentration images (left and middle) and the gray line in the time series (right) indicate 1981 to 2010 average extent for the day shown The graph also includes lines for selected earlier years, for comparison Learn more about how to
- 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
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