arctic sea ice extent

JAXA ARCTIC SEA ICE EXTENT. Plusminus 2 standard deviations.

Antarctic Sea Ice Reaches New Maximum Extent Arctic Sea Antarctica Sea Ice

In September 2015 Arctic sea ice reached a minimum extent of 441 million square kilometers 17 million square milesthe fourth lowest in the satellite record.

. Extent is a common and useful metric to assess seasonal and long-term Arctic sea ice changes for which there is now a 43-year record derived from consistent satellite. Though modern sea ice losses are often characterized as dangerously low satellite data indicate the 2002-06 five-year average minimum sea ice extent was 592 million km² which is 038 km² above the 1700s. Arctic Sea Ice Extent 200620172020. Plot updated through 2142022.

The 2022 extent was 540000 square kilometers 208000 square miles below the 1981 to 2010 average. A synthesis of scientific sea ice extent projections during Arctic summer updated monthly during melt season. NASAs Scientific Visualization Studio Sea ice in the Arctic appears to have hit its annual minimum extent on Sept. Arctic Sea ice maximum is the day of a year when Arctic sea ice reaches its largest extent near the end of the Arctic cold season normally during March.

13536 M km 2 to 13788 M km 2 for this week. However to suggest that any sort of tipping point or catastrophe is on the horizon is a political motivated statement not a scientific one. The ice then grew during the winter months and reached its annual maximum extent in March 2016 measuring 1452 million square kilometers 561 million square miles. The Arctic sea ice extent 2021 at the end of December is the highest in the last 7 years and the 2nd highest in 18 years according to the US Snow and Ice Data Center.

And sea ice extent is lower now than it was back in the 1970s and 1980s. A collaborative network of scientists and stakeholders to advance research on sea ice prediction and communicate sea ice knowledge and tools. 12457073 KM2 as at 07-Jan-2021 - Extent gain on this day 68k 43 k more than the average gain on this day of the last 10 years of 25k - Extent gain from minimum on this date is 8902 k which is 623 k 8 more than the 10 year average of 8279 k. Monitoring Arctic sea ice and everything that influences it as an extension of the Arctic Sea Ice Blog and the Arctic Sea Ice Forum in order to increase awareness of.

Sea ice extent provided by the National Snow and Ice Data Center NSIDC is available from 19792021 for the Northern Hemisphere Southern Hemisphere and Globe. Sea ice extent is defined as the total area covered by at least 15 ice concentration. Average Arctic sea ice extent for January 2022 was 1388 million square kilometers 536 million square miles ranking sixteenth lowest in the satellite record Figure 1a. Mean sea ice extents from the 1980s 1990s 2000s and 2010s are also shown by the dashed lines.

The sea ice satellite record dates back to October 25 1978. January 14 2022 January 14 2022. Annual Antarctic sea ice extent total area of at least 15 ice concentration for the last 7 years. A warming Arctic region is actually expected during prolonged periods of low solar activity NASA as.

To adapt data from a newer source to the data from an older. - Extent is at position 3 in the satellite record. Click on the image to enlarge. On this date the extent of the ice was 472 million square miles 182 million square kilometers.

The state of the sea ice is determined by its extent thickness and volume. Arctic Sea Ice Extent. Time Series Of Sea Ice Extent. Scientists Diamond et al 2021 assert that during the 18th and 19th centuries Arctic sea ice extent minimum September values averaged 554 million km².

Yearly minimum extents 2002-2020 are shown by the scatter points with color in reference to the magnitude. Cycles of natural variability such as the Arctic Oscillation are known to play a role in Arctic sea ice extent but the sharp decline cannot be explained by natural variability alone. Arctic Centre University of Lapland. Though winter ice extent has fluctuated satellite and in situ observations have shown that there is much less multiyear ice and more annual ice.

By the end of December its extent is 1295 million square kilometers 500 million square miles which is just within the interdecile range according to the National Snow. Unlike the Arctic where sea ice extent is declining in all areas in all seasons Antarctic trends are less apparent. Melting picks up pace during the spring as the sun gets stronger and in September the extent of the ice cover is typically only around one third of its winter maximum. NSIDC Sea Ice Extent September 200620172020.

These are the facts. The dashed vertical line indicates the date of the latest plotted and mapped data. The ice cover in the Arctic grows throughout the winter before peaking in March. The Arctic sea ice extent actually grew faster than in the latest years.

Sea Ice Prediction Network. Arctic Sea Ice Extent. Over the past week the sea ice has now increased at a slightly lower rate of of 167 from the level on 01132022 of 13788 M km 2 to 14022 M km 2 for this week. Snow cover extent provided by the Rutgers University Global Snow Laboratory GSL is available from 19672021 for the North America Greenland Northern Hemisphere Eurasia and North.

You may use the map freely provided that the sources are mentioned. Total sea ice extent on the northern hemisphere during the past years including climate mean. Sea Ice Outlook Report. Sea ice extent is the integral sum of the areas of all grid cells with at least 15 ice concentration while sea ice area is the integral sum of the product of ice concentration and area of all grid cells with at least 15 ice concentration.

The Arctic is warming slightly. Sea ice is an important element of the Arctic system because it 1 acts as a barrier between the underlying ocean and the atmosphere 2 limits the amount of absorbed solar energy during the summer due to its high albedo 3 provides a habitat for biological activity 4 limits human access to the Arctic Ocean and 5. Annual Arctic sea ice extent total area of at least 15 ice concentration for the last 6 years and the minimum year 2012. Although delayed by more than a month the Hudson Bay finally froze in the last 2 weeks httpstcoqAs3C6qkwE.

The ice extent values are calculated from the ice type data from the Ocean and Sea Ice Satellite Application Facility OSISAF where areas with ice concentration higher than 15 are classified as ice. 16 after waning in. Latest daily Arctic sea ice extent JAXA AMSR2 for 2020. Over the past week the sea ice has now increased at a rate of of 183 from the level on 01062022 of.

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. From 19792017 Antarctic-wide sea ice extent showed a slightly positive trend overall although some regions experienced declines.

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Stacked Area Graph Showing The Distribution Of Arctic Sea Ice Extent Grouped By The Age Of The Ice During September Of Each Arctic Sea Sea Ice Climate Change