Search results
Results From The WOW.Com Content Network
English: Plot of arctic sea ice extent development between 1979 and 2023 in monthly mean values. For the determination of the "area" value, every pixel with a sea ice concentration > .15 is taken. The pixel area is multiplied with the concentration value derived from the passive infrared signal.
The ice extent trends from 1979 to 2002 have been a statistically significant Arctic sea ice decrease of −2.5% ± 0.9% per decade during those 23 years. [7] Climate models simulated this trend in 2002. [8] The September minimum ice extent trend for 1979–2011 declined by 12.0% per decade during 32 years. [9]
The Arctic Ocean is the mass of water positioned approximately above latitude 65° N. Arctic Sea Ice refers to the area of the Arctic Ocean covered by ice. The Arctic sea ice minimum is the day in a given year when Arctic sea ice reaches its smallest extent, occurring at the end of the summer melting season, normally during September.
Sea ice in the Arctic region has declined in recent decades in area and volume due to climate change. It has been melting more in summer than it refreezes in winter. Global warming, caused by greenhouse gas forcing is responsible for the decline in Arctic sea ice. The decline of sea ice in the Arctic has been accelerating during the early ...
Animation of Minimum Annual Sea Ice Extent over the Arctic from 1979 to 2012. In this animation, the daily Arctic sea ice and seasonal land cover change progress through time, from May 16, 2013, through September 12, 2013, when the sea ice reached its minimum area of coverage for 2013.
A comparison of polar sea ice extents on two random days does not provide enough information to determine whether or not Earth's climate is changing.
The first sea ice-free September could occur as early as the 2030s, the study found. Arctic sea ice has been declining for decades but has shrunk at an even faster rate in the past 20 years.
Deutsch: Zeitverlauf der Schätzung des Volumens des arktischen Meereseises zwischen 1979 und 2010. Die blaue Kurve wurde durch das numerische Modell PIOMAS berechnet. Als Fehler für Einzelwerte wird für Oktoberwerte (Minima) +- 1.35 10³ km³ als Orientierung angegeben.