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Résultats de recherche
NSIDC is a center of excellence for data management, analysis, and visualization of snow, ice, and frozen ground. Explore data, research, and news on Arctic and Antarctic sea ice, glaciers, ice sheets, and more.
- News & Analyses
Catch up on reports of Arctic sea ice conditions and view...
- Data
Discover how NSIDC research and data at NSIDC are being used...
- Our Research
NSIDC has a long history of collaboration with various types...
- Learn
Quick facts, basic science, and information about snow, ice,...
- About
Advancing knowledge of Earth’s frozen regions since 1976....
- News & Stories
Read about NSIDC research and its contribution to science...
- Scientific Analyses
NSIDC produces the Arctic Sea Ice News & Analysis (ASINA),...
- What is the Cryosphere
The cryosphere refers to Earth’s ice in all its forms. The...
- News & Analyses
- Overview of Conditions
- Conditions in Context
- March 2024 Compared to Previous Years
- Update on Sea Ice Age
- Projections of An Ice-Free Arctic Ocean
- Antarctic Note
- Further Reading
- GeneratedCaptionsTabForHeroSec
The average ice extent for March 2024 is 14.87 million square kilometers (5.74 million square miles), fifteenth lowest in the passive microwave satellite record (Figure 1a). As of the beginning of April 2024, Arctic sea ice extent had dropped by about 278,000 square kilometers (107,000 square miles) below the March 14 maximum (Figure 1b). Extent is...
Air temperatures for March 2024 at the 925 hPa level (about 2,500 feet above the surface) were below average in the Barents Sea and along the Eurasian coast at 1 to 3 degrees Celsius (2 to 5 degrees Fahrenheit) contrasting with above average values of 2 to 5 degrees Celsius (4 to 9 degrees Fahrenheit) over the Canadian Arctic Archipelago, Greenland...
Including 2024, the downward linear trend in March sea ice extent is 37,000 square kilometers (14,000 square miles) per year, or 2.4 percent per decade relative to the 1981 to 2010 average. Since 1979, Arctic sea ice loss in March is 1.68 million square kilometers (649,000 square miles), which is roughly equivalent to the size of the state of Alask...
With the passage of the seasonal maximum sea ice extent, it is appropriate to provide an updated assessment of sea ice age. Older, multiyear ice (ice that has survived at least one melt season) is generally thicker and more resistant to melting completely during the upcoming melt season than first-year ice, which represents ice growth of the previo...
Colleagues Alexandra Jahn and Jen Kay, from the University of Colorado Boulder, and Marika Holland from the National Center for Atmospheric Research recently synthesized our current understanding of the timing and regional variability of an ice-free Arctic. In reviewing the literature, they find that a variety of different definitions of “ice-free”...
Antarctic sea ice extent expanded slowly in mid-March after reaching its summer minimum extent on February 21, lagging behind many of the years in the satellite record and ending the month tied with several other years for third lowest. Ice extent is particularly low in the eastern Ross Sea and western Amundsen Sea region, and in the eastern Bellin...
Jahn, A., M. M. Holland, and J. E. Kay. 2024. Projections of and ice-free Arctic Ocean. Nature Reviews Earth and Environment.doi:10.1038/s43017-023-00515-9.
NSIDC provides daily updates on Arctic sea ice extent, conditions, and trends based on satellite data. Read about the 2024 March average, the atmospheric circulation pattern, the sea ice age, and the uncertainty of a seasonally ice-free Arctic.
NSIDC provides daily data images and scientific analyses of surface melting on the Greenland and Antarctic ice sheets. Learn how climate change, weather, and snow quality affect the ice sheets and sea level.
NSIDC provides monthly and daily data and images of Arctic and Antarctic sea ice extent, concentration, anomalies and trends since 1979. See how sea ice changes over time and compare with the 30-year median extent.
