Sea Ice - NOAA Arctic
Winter near-surface air temperatures were higher than the 1991-2020 average over most of the Arctic Ocean, particularly in the Barents Sea and portions of the Beaufort Sea (see essay Surface Air Temperature). However, lower temperatures prevailed over much of the Eurasian side of the Arctic during spring.
New observations from ICESat-2 show remarkable Arctic sea ice …
2022年3月11日 · WASHINGTON—Over the past two decades, the Arctic has lost about one-third of its winter sea ice volume, largely due to a decline in sea ice that persists over several years, called multiyear ice, according to a new study. The study also found sea ice is likely thinner than previous estimates.
World of Change: Arctic Sea Ice - NASA Earth Observatory
2020年2月18日 · The new summer lows, combined with poor wintertime recoveries, have fueled a persistent decline in Arctic sea ice. Since 2002, ice extent at the summer minimum has not returned to anything approaching the long-term average.
Sea Ice - NOAA Arctic
Ice freeze-up in winter 2023/24 was relatively rapid compared to recent years, particularly in the East Siberian and Laptev Seas. The autumn and winter sea ice growth rates brought the ice cover nearer to, but below, average in those months. The extent remained below average through spring, before starting a rapid decline in June.
What happens to Arctic sea ice in winter?
2022年9月23日 · Although Arctic sea ice extent has not declined as much during winter months, it has still shown a steadily decreasing trend. Arctic sea ice extent now exhibits long-term declines in all months, including the coldest, darkest months of the year.
Arctic Sea Ice Continues to Decline - NASA Earth Observatory
2024年3月25日 · The maximum winter ice coverage in the Arctic Ocean is consistent with an ongoing 46-year decline. Analysis of satellite observations has revealed that the total area of the Arctic Ocean covered in sea ice reached 5.80 million square miles (15.01 million square kilometers) on March 14.
Attribution of the Recent Winter Sea Ice Decline over the …
2015年5月15日 · Utilizing ERA-Interim and satellite-based data, it is shown here that a positive trend of downward IR radiation accounts for nearly half of the sea ice concentration (SIC) decline during the 1979–2011 winter over the Atlantic sector.
Studying sea ice | National Snow and Ice Data Center
2024年8月15日 · Arctic sea ice has shown a decline over the course of the satellite record dating back to November 1978. More recently, Antarctic sea ice has shown signs that it might have begun a declining trend, although more observations are needed to confirm. These changes in sea ice raise the question of what it would mean for sea ice to “return to normal.”
Winter sea-ice growth in the Arctic impeded by more frequent ...
2023年2月13日 · Over the past four decades, Arctic sea ice has experienced a drastic decline in winter when it is recovering from summer melt. Observations and model simulations reveal that atmospheric...
Influence of the recent winter Arctic sea ice loss in short-term ...
2022年5月26日 · In most cases the sea ice loss-induced atmospheric warming is trapped near the surface due to the high vertical stability of winter Arctic lower troposphere, accordingly, resulting in a...