arctic sea ice extent

The seasonal expansion and contraction of the ice pack sets an annual. The sea ice extent for this year is 12953 kilometers the highest in 7 years.

Figure 1 Arctic Sea Ice Extent For December 2016 Was 12 10 Million Square Kilometers 4 67 Million Square Miles The Magenta Li Arctic Sea Arctic Ice Sea Ice

The red line is the 10C isotherm in July commonly used to define the Arctic region.

. The 2022 maximum is the tenth lowest in the 44-year satellite record. 2022 is shown using a red line updated 4182022. Anomalies are calculated using a 5-day running mean from a climatological baseline of 1981-2010. National Snow.

Climate Science Program Manager at NOAAs Air Resources Laboratory. The 2022 Arctic sea ice extent maximum is the eighth lowest recorded since 2006 when this metric from IMS was first tracked consistently. Arctic Sea Ice Extent. According to the latest edition of the NSIDCs Arctic Sea Ice News.

The Arctic sea ice extent actually grew faster than in the latest years. Average Arctic sea ice extent for March 2022 was 1459 million square kilometers 563 million square miles ranking ninth lowest in the satellite record Figure 1a. Arctic Sea Ice Extent. The USNIC analyst-driven IMS MASIE estimate is corroborated by the NSIDC at the University of Colorado Boulder announcing.

The 2022 maximum occurred 9 days before the 16 year average maximum date of 9 March. 12328458 KM2 as at 05-Jan-2021 - Extent gain on this day 87k 44 k more than the average gain on this day of the last 10 years of 43k - Extent gain from minimum on this date is 8774 k which is 559 k 7 more than the 10 year average of 8215 k. Arctic Sea Ice Extent. A map of the Arctic.

This NASA Blue Marble image. Sea ice extent is defined as the total area covered by at least 15 ice concentration. Arctic sea ice reaches its minimum each September. The extent of the sea ice is defined by areas that have an ice concentration of at least 15 ie.

Arctic Sea Ice Extent. Arctic sea ice extent anomalies for each year from 1979 to 2022 satellite-era. 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-borne passive microwave sensor observations. The last 15 Septembers show the lowest values.

The 2021 sea ice extent is 44 lower than the average 1981-2010 which corresponds to a 0603million square kilometers decrease. JAXA ARCTIC SEA ICE EXTENT. 14081 M km 2 to 13824 M km 2 for this week. Arctic sea ice extent has declined significantly in all months since satellite measurements began in 1979 with Septembers showing the largest declines.

Scientists Diamond et al 2021 assert that during the 18th and 19th centuries Arctic sea ice extent minimum September values averaged 554 million km². Sea ice grew fast particularly in the Greenland Sea in the Sea of Okhotsk according to Severe Weather Europe. The climate of the Arctic is characterized by long cold winters and short cool. National Snow.

September Arctic sea ice is now declining at a rate of 13 per decade relative to the 1981 to. National Snow. Over the past week the sea ice has now increased again by a rate of of 229 from the level on 02102022 of 14364 M km 2 to 14701 M km 2 for this week. 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.

National Snow. The grey band around the climatological mean value corresponds to plusminus one standard deviation. Over the past week the sea ice has now increased at a slightly higher rate of of 260 from the level on 01272022 of 14180 M km 2 to 14558 M km 2 for this week. April 22 2022 April 22 2022.

This corresponds to a 3 difference. Sea ice concentration is the percent areal coverage of ice within the data element grid cell. Arctic sea ice has likely reached its maximum extent for the year at 1488 million square kilometers 575 million square miles on February 25 according to scientists at the National Snow and Ice Data Center NSIDC at the University of Colorado Boulder. Over the past week the sea ice has now decreased by a rate of 183 from the level on 04142022 of.

Partly due to the loss of sea ice in the North the Arctic has warmed on average by 06 C 11 F per decade Comiso and Hall 2014 faster than any other region on Earth. 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. 2021 is highlighted with a yellow line. The extent of the ice is based on satellite data and are from the Ocean and Sea Ice Satellite Application Facility project OSISAF.

The 2022 March extent was 840000 square kilometers 324000 square miles below the 1981 to. Arctic Sea Ice Extent. The white area shows the average minimum extent of sea ice in summer as of 1975. Over the past week the sea ice has now increased again by a very small rate of of 040 from the level on 02172022 of 14701 M km 2 to 14760 M km 2 for this week.

Arctic sea ice extent during June 2016 averaged 1060 million square kilometers 409 million square miles the lowest in the satellite record for the month. On December 29 sea ice extent was roughly 0399million square kilometers higher than 2020. So far March is the only month in 2016 that has not set a new record low for Arctic-wide sea ice extent March 2016 was second lowest just above 2015. On the same day on the other pole Antarctic sea ice reached a record minimum extent at 192.

Overview of the climate of the Arctic. The loss of sea ice also has profound ecological implications that extend well beyond the Arctic. December 13005 million square km of Arctic Sea Ice was covering the Arctic partially thanks to Hudson Bay which has delays around 1 month but finally frozen before the end of the year 2021. The 2022 maximum is the tenth lowest in the 44-year satellite record.

Over the past week the sea ice has now decreased by an extremely small rate of of 006 from the level on 03032022 of 14703 M km 2 to 14694 M km 2 for this week. Arctic sea ice has likely reached its maximum extent for the year at 1488 million square kilometers 575 million square miles on February 25. - Extent is at position 2 in the satellite record. 15 of the surface is covered by ice.

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. Also shown is the Arctic Circle.