Part of the ongoing research into polar ice trends encompasses evaluation from sophisticated computer models. At the Geophysical Fluid Dynamics Laboratory at Princeton University, run by NASAs sibling agency, NOAA, researchers modeled a 5,000 year period to see how polar ice might behave over time depending on several different variables. This visualization shows a 120-year slice of that complete ... Full description.

Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2003, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. For starters, as more ice moves from glaciers on land into the ocean, it raises sea levels. ... Full description.

Part of the ongoing research into polar ice trends encompasses evaluation from sophisticated computer models. At the Geophysical Fluid Dynamics Laboratory at Princeton University, run by NASAs sibling agency, NOAA, researchers modeled a 5,000 year period to see how polar ice might behave over time depending on several different variables. This visualization shows a 120-year slice of that complete ... Full description.

Part of the ongoing research into polar ice trends encompasses evaluation from sophisticated computer models. At the Geophysical Fluid Dynamics Laboratory at Princeton University, run by NASAs sibling agency, NOAA, researchers modeled a 5,000 year period to see how polar ice might behave over time depending on several different variables. This visualization shows a 120-year slice of that complete ... Full description.

Part of the ongoing research into polar ice trends encompasses evaluation from sophisticated computer models. At the Geophysical Fluid Dynamics Laboratory at Princeton University, run by NASAs sibling agency, NOAA, researchers modeled a 5,000 year period to see how polar ice might behave over time depending on several different variables. This visualization shows a 120-year slice of that complete ... Full description.

Part of the ongoing research into polar ice trends encompasses evaluation from sophisticated computer models. At the Geophysical Fluid Dynamics Laboratory at Princeton University, run by NASAs sibling agency, NOAA, researchers modeled a 5,000 year period to see how polar ice might behave over time depending on several different variables. This visualization shows a 120-year slice of that complete ... Full description.

The International Ice Patrol is a branch of the United States Coast Guard. They monitor iceberg danger near the Grand Banks of Newfoundland, and provide the limits of all known ice to the maritime community. This kids page provides an illustrated story of the life cycle of icebergs, as well as a list of questions and answers about icebergs in general. There is also a set of links to other sites that ... Full description.

This document discusses the mission of ICESat, the benchmark Earth Observing System satellite intended to measure ice sheet mass balance, cloud and aerosol heights, topography, and vegetative cover. Questions of particular interest to the mission include: is sea level is rising?; are the Greenland and Antarctic ice sheets growing or shrinking?; are ice sheets are capable of causing large, rapid changes ... Full description.

NSIDC offers data and information about the cryosphere; that portion of the Earth where water is in solid form, typically snow or ice. Topics include snow, glaciers, permafrost, sea ice, news and features, and others. The State of the Cryosphere section provides an overview of the status of snow and ice as indicators of climate change. An image and photo gallery provides historic photographs and satellite ... Full description.

This slide show will aid in the quest to understand the cause of the Pleistocene ice ages, an example of how scientists have used different types of evidence to understand earth processes. It traces the history of investigation of the ice ages, from the discovery of glacial erratics and moraines in the 1800s, and the theories of orbital variations in solar radiation, to recent investigations of the ... Full description.