Sentences with phrase «average sea ice extent»

The red line shows the 1981 - 2010 daily average sea ice extent for that date.

Although the June 2008 ice extent was similar to that seen in 2007, the observed rate of decline slowed in July, resulting in a monthly averaged sea ice extent for July 2008 that was 0.90 million sq - km above 2007.

It should be recalled that we are comparing these Outlook values to the September average sea ice extent as provided by the National Snow and Ice Data Center (NSIDC).

This is substantially lower than the earlier estimates, reflecting both lower than average sea ice extent used as initial conditions this summer and a persistent downward trend in sea ice extent over the past decade (and longer).

Any time you want an update, simply visit the website of the US National Snow and Ice Data Center (NSIDC)-- there you can find daily satellite measurements and monthly trend analyses, like the one shown below (comparing average sea ice extent for October 2017 to all other Octobers in the satellite record, illustrating a downward trend).

Current predictions [5], [6] suggest that trends in sea ice extent will alter in the second half of this century and that the annual average sea ice extent will diminish by 33 %; most of this retreat is expected to occur in winter and spring [5], [6], with attendant risks for emperor penguins.

This reflects a December pattern of faster - than - average growth in the Arctic, and slightly slower - than average sea ice extent decline in the Southern Ocean.

NMEFC of China (Li and Li), 4.02 (3.10 - 4.57), Statistical We predict the September monthly average sea ice extent of Arctic by statistic method and based on monthly sea ice concentration and extent from National Snow and Ice Data Center.

The predicted September monthly average sea ice extent is 5.48 (4.97 - 5.98) million km2 which is same to the result of June Report.

Average sea ice extent for August 2016 was 5.60 million square kilometers (2.16 million square miles), the fourth lowest August extent in the satellite record.

Arbetter, 4.1, n / a, Statistical Using conditions from week 22 of 2012 (ie June 1, 2012), a revised minimum Arctic sea ice extent is substantially lower than the first estimate of 4.32 million km2, using week 18 conditions (May 1, 2012), reflecting both lower than average sea ice extent used as initial conditions and a persistent downward trend in sea ice extent over the past decade (and longer).

The extraordinary 2012 Arctic sea ice melt has resulted in a September average sea ice extent of 3.61 million sq km, according to the latest monthly data from the National Snow and Ice Data Center (NSIDC), smashing the previous record of 4.30 million sq km set in 2007.

Rapid ice growth during the second half of September allowed the monthly average sea ice extent to somewhat rebound from the second lowest daily extent observed on September 10.

Figure 1: This image compares the average sea ice extent for September 2007 to September 2005; the magenta line indicates the long - term median from 1979 to 2000.

Stern: My estimate for September average sea ice extent (4.67 million square kilometers) was simply based on extrapolation of the 10 - year trend (1989 - 2008).

In the Arctic, the average sea ice extent decreased around 3.5 to 4.1 percent per decade from 1979 to 2012.

So, in order to recover to the average sea ice extent from the prior ten years on Oct 28 when recovery tracks have converged, the needed recovery rate from now until then has to be 3 % higher than the fastest 7 day recovery rate in the prior period.

Average sea ice extent for July 2011 was 3.06 million square miles, 81,000 square miles lower than the previous record low, set in July 2007.