Sentences with phrase «minimum sea ice extent»

Both 2007 and 2008 qualify as major outliers compared to previous summer minimum sea ice extents over the last three decades.

Here is a sobering comparison of model projections from AR4 and observations of minimum sea ice extent through 2008.

[4] On September 10, 2016, Arctic sea ice extent stood at 1.60 million square miles, the second - lowest minimum sea ice extent on record, tied with 2007.

The SMHI group finds a 28 % chance of setting a new record minimum sea ice extent and Zhang states that there is a 2 in 9 (22 %) chance of setting a new record.

The following image from NASA compares the average minimum sea ice extent over the past 30 years (the yellow line) to the new record low (illustrated in white):

«Arctic minimum sea ice extent at the end of summer was tied with 2007 for the second - lowest amount during the satellite record starting in 1979, at 33 percent below the long - term average.»

The yellow outline is the median minimum sea ice extent for 1979 — 2000; that is, areas that were at least 15 percent ice - covered in at least half the years between 1979 and 2000.

Recent studies have found that the formation of melt ponds early in the summer is a good predictor of the yearly minimum sea ice extent in September.

Figure 2: Median and interquartile range of NCAR and NSIDC pool predictions, compared with observed September mean or one - day minimum sea ice extent.

In the Eurasian river drainage basins, the correlation between increased river discharge and decreased summer minimum sea ice extent (over the period 1979 - 2008) is greater than the correlation between precipitation and runoff, suggesting that both rivers and sea ice were responding to changes in large - scale hemispheric climate patterns.

Second, scientists would expect to see a series of minimum sea ice extents that not only exceed the previous year, but also return to within the range of natural variation.

Her first post explored this question: «How should we interpret the record low minimum sea ice extent?»

NOAA / NCEP / EMC (Wu and Grumbine), 4.09 (Std dev = 0.54), Modeling (fully - coupled) The projected Arctic minimum sea ice extent from the NCEP CFSv2 model with revised CFSv2 May and June initial conditions (ICs) using 61 - member ensemble forecast is 4.09 million km2 with a standard deviation (SD) of 0.54 million km2.

Together, the meager maximum extent and thin ice could spell trouble for this year's minimum sea ice extent, expected during September.

The exact date and value of the minimum sea ice extent in 2017 can only be determined in the coming weeks, after a significant increase.

Though slightly larger than last year, the minimum sea ice extent 2017 is average for the past ten years and far below the numbers from 1979 to 2006.

-- The Minimum Sea Ice Extent in the arctic was lower in 1990 than in 2006 — ie the arctic ice summer (September) minimum has been more - or-less stable for 16 years.

The authors, Masayo Ogi and Koji Yamazaki in Japan and John M. Wallace of the University of Washington, concluded that the combined effects of winter and summer wind patterns have accounted for half of the change in the minimum sea ice extent from one summer to the next and about a third of the overall downward trend in sea ice extent over the last three decades.

I view the question of whether the minimum sea ice extent sets a new record this year as secondary.

NASA satellite data reveals how this year's minimum sea ice extent, reached on Sept. 9 as depicted here, declined to a level far smaller than the 30 - year average (in yellow) and opened up Northwest Passage shipping lanes (in red).

The minimum sea ice extent in 2010 fits into a long - term pattern of decline, especially in multi-year ice, which persists through the summer melt season and into another winter.

Red horizontal arrow indicates interval with increased Atlantic Water (AW) inflow, characterized by minimum PIP25 values (minimum sea ice extent)(from ref.

However, the pace of decline returned to near - average rates by July, and the end - of - summer minimum sea ice extent, recorded on September 10, eventually tied for second lowest with 2007 (2012 remains the lowest in the satellite time series by more than 600,000 square kilometers or 232,000 square miles).

Projections of future summer minimum sea ice extents, each colored line (including the heavy black line) is from a single ensemble member.

The white line is the observed 2007 minimum sea ice extent.

Although the past winter was significantly colder than the previous winter, and more ice was formed and summer was not as long as the previous summer, it looked like the 2008 summer minimum sea ice extent would get pretty close to the previous minimum reached last year with some differences notably in the western Arctic (Chukchi and Beaufort Seas).

NRL - atm - ocn - ice, 4.8 (4.4 - 5.3), Modeling (fully coupled)(Same as June) The projected Arctic minimum sea ice extent from the Navy's global coupled atmosphere - ocean - ice modeling system based on May 2016 initial ice conditions is 4.8 km2.

Wu et al, 4.80 (4.15 - 5.45), Modeling The projected Arctic minimum sea ice extent from the NCEP CFSv2 model with revised CFSv2 May ICs using 31 - member ensemble forecast is 4.8 million square kilometers with a SD of 0.65 million square kilometers.

The 2012 minimum sea ice extent was 49 % below the 1979 to 2000 average and 18 % below the previous record from 2007.