That marks the second straight year that the winter maximum ice
extent set a record low.
Not exact matches
As the Arctic sea - ice reaches its summer minimum
extent, it is clear that it has yet again shrunk to one of the smallest areas in recent decades, 10 % above the
record minimum
set last year.
That maximum
extent was 595,000 square miles above the 1981 - 2010 average
extent, the NSIDC said in a statement, and broke the consecutive
records set in 2012 and 2013.
A: The National Snow and Ice Data Center (NSIDC) announced this week that the sea ice surrounding Antarctica reached its maximum
extent — its widest halo around the continent — in 2014 on 22 September: more than 20 million square kilometers, which also
set a
record for the highest
extent of sea ice around the continent since satellite measurements began in the late 1970s.
This was the largest January Antarctic sea ice
extent on
record, surpassing the previous
record set in 2008 by 220,000 square miles.
Record low monthly
extents were
set in October 2016 through April 2017, except for December 2016, when the monthly average field was slightly higher than 2010.
This is the second lowest minimum
extent in the satellite
record, 70,000 sq km larger than the
record set in 2017.
This was the smallest April Northern Hemisphere snow cover
extent in the 50 - year period of
record, dropping below the previous
record set in 1968 by 30,000 square miles.
This was the smallest June
extent since
records began in 1979 and 100,000 square miles smaller than the previous
record set in 2010.
Dan H # 28: Not sure where you get the idea that a
record low
extent is
set every five years.
Evidence for regional warmth during medieval times can be found in a diverse but more limited
set of
records including ice cores, tree rings, marine sediments, and historical sources from Europe and Asia, but the exact timing and duration of warm periods may have varied from region to region, and the magnitude and geographic
extent of the warmth are uncertain.
Current ice
extent is well below levels at the same point in 2012, which went on to
set the current
record for the lowest sea ice minimum
extent:
«The far north has indeed been behaving bizarrely in Nov / Dec 2016,
setting many new
records for temperature, sea ice
extent, atmospheric water vapour content, and Arctic amplification (the difference in temperature between the Arctic and northern mid-latitudes)»
The high anomalies up in the Arctic continue for a third month in GISTEMP and the question of the maximum Arctic Sea Ice
Extent is surely now only by how much this freeze season will be below the
record low
set in 2017.
I got that in spades on the sea ice thread when I argued that 2008 was not on a surefire course to surpass 2007's
record, and rather was likely
set for an earlier and stronger recovery — yet I was correct (and incidentally ice
extent is now ~ 1.5 million km2 more than a year ago.)
Other data
sets such as ocean heat content, sea ice
extent, whatever, are not sufficiently mature or long - range (see Climate data
records: maturity matrix).
By comparison, the actual minimum ice
extent was 18 percent less than the previous
record set in 2007.
-- Antarctic sea ice
extent reached
record high for second year in a row; South Pole station
set record high temperature: The Antarctic maximum sea ice
extent reached a
record high of 7.56 million square miles on October 1.
I view the question of whether the minimum sea ice
extent sets a new
record this year as secondary.
The National Snow and Ice Data Center predicts this year's minimum summer sea ice
extent won't break the
record set in 2012.
The US National Snow and Ice Data Center, which monitors Arctic ice, said last week: «It is unlikely that Arctic sea ice
extent this September will fall below the
record minimum
set in 2012.»
Evidence for regional warmth during medieval times can be found in a diverse but more limited
set of
records including ice cores, tree rings, marine sediments, and historical sources from Europe and Asia, but the exact timing and duration of warm periods may have varied from region to region, and the magnitude and geographic
extent of the warmth are uncertain.
The Arctic wasn't just relatively hot last year — beating the previous
record set in 2010 by 0.17 degrees Celsius (0.3 degrees Fahrenheit)-- it also experienced the lowest sea ice volume yet
recorded, and the second - lowest
extent.
Arctic sea ice shrank to its lowest level in 38 years last month,
setting a
record low for the month of May and
setting up conditions for what could become the smallest Arctic ice
extent in history, according to National Snow and Ice Data Center data released Tuesday.
And it's about 37,000 square miles less than the 2015 maximum
extent, the previous
record -
setting low.
2016
set the third - lowest maximum
extent on
record.
Sea ice
extent fell to 4.10 million square kilometers (1.58 million square miles) on August 26, breaking the lowest
extent on
record set on September 18, 2007, of 4.17 million square kilometers (1.61 million square miles).
Global mean temperatures in 2011 did not reach the
record -
setting levels of 2010, but were still the highest observed in a La Niña year, and Arctic sea - ice
extent fell to near -
record - low levels.
Antarctic ice
extent setting new
records last year, and close to breaking them this year again Extreme weather as measured by ACE on a decline for decades Drought as measured by Palmer Drought Index flat for decades Sea level increases not accelerating and possibly starting to decelerate Signature tropospheric hot spot completely missing Scientists by the bushel coming up with some of the most absurd excuses as to why....
In the summer of 2012, Arctic sea ice has broken the previous
record for minimum
extent (
set in 2007), fallen below 4 million square kilometers, and, as of September 17, dropped below 3.5 million square kilometers in
extent.
Arctic sea ice
extent (SIE) has decreased over recent decades, with
record -
setting minimum events in 2007 and again in 2012.
Stroeve says this year's minimum
extent was largely due to the exceptionally warm winter in the Arctic, part of a trend that's resulted in 14 consecutive months of
record -
setting average high temperatures worldwide.
While Greenland was
setting records linked to melting, another was being
set around the chilly mass of Antarctica, which saw a new highest daily sea ice
extent.
But Julienne Stroeve with the National Snow and Ice Data Center says the
extent of sea ice in the far north this month wasn't quite small enough to break the
record set in 2012.
In fact, 2015 and early 2016
set records for the most sea ice
extent observed.
According to the National Snow and Ice Data Center (NSIDC), the monthly average June 2010 ice
extent was 10.87 million square kilometers, 1.29 million square kilometers below climatology (1979 - 2000) and 190,000 square kilometers below the previous
record low for the month of 11.06 million square kilometers
set in 2006.
In September 2007 sea ice
extent reached its lowest level since the satellite
record began in 1979; the monthly
extent, 4.28 × 106 square kilometers, surpassed the previous sea ice minimum
record (
set in 2005) by 1.28 × 106 square kilometers [Stroeve et al., 2008].
2012's sea ice area and
extent were already trending low this year, but damage done to the thin and low concentration of ice by this storm almost ensures that 2012 will eclipse 2007 in all categories as the lowest sea ice on
record by the time the September low is
set.
He says this winter may not
set a new
record low sea - ice
extent for a third consecutive year.
The
extent of Bering Sea ice cover this year has so far exceeded that of the previous two years, he added, because the extraordinary and
record -
setting low sea - ice formation of the past two winters mainly were due to a couple of short - term factors: a strong El Nino and an unusually persistent warm - water mass in the north Pacific commonly called «The Blob.»
Record low monthly
extents were
set in the Arctic in January, February, April, May, June, October, and November; and in the Antarctic in November and December.
The Antarctic has even recently broke the all time
record set for ice
extent in
recorded satellite history.
Antarctic ice
extent has reached approximately 20 million square kilometers, it's already broken the all - time
record ice
extent set in September of 2012.
Throughout the year, a wave of new
record lows were
set for both daily and monthly
extent.
As I have pointed out previously on spiked, when one out of six new studies showed that a new
record had been
set for Arctic sea ice
extent, the Guardian's Damian Carrington declared: «Ice is the white flag being waved by our planet, under fire from the atmospheric attack being mounted by humanity.»
Sea ice in the Arctic and the Antarctic
set record low
extents every day in December, continuing the pattern that began in November.
The March 24, 2016 maximum sea - ice
extent was estimated at 5.6 million square miles (14.52 million square kilometers), which
set a new
record for the lowest maximum
extent since satellite monitoring began in 1981.
Antarctic sea ice has had a positive anomaly continually since that 2012 post and has
set all time
extent records.
Arctic sea ice is now 28 % beneath its historic average
extent,
setting a
record low for October.
The National Snow and Ice Data Center (NSIDC) and NASA announced in mid-September that the
extent of Arctic sea ice had dropped to 3.41 million square kilometers (1.32 million square miles)-- well below the previous
record of 4.17 million square kilometers (1.61 million square miles)
set in 2007.