Changes in Arctic melt season and implications for sea ice loss

@article{Stroeve2014ChangesIA,
  title={Changes in Arctic melt season and implications for sea ice loss},
  author={Julienne Christine Stroeve and Thorsten Markus and Linette N. Boisvert and J. Miller and Andrew P. Barrett},
  journal={Geophysical Research Letters},
  year={2014},
  volume={41},
  pages={1216 - 1225}
}
The Arctic‐wide melt season has lengthened at a rate of 5 days decade−1 from 1979 to 2013, dominated by later autumn freezeup within the Kara, Laptev, East Siberian, Chukchi, and Beaufort seas between 6 and 11 days decade−1. While melt onset trends are generally smaller, the timing of melt onset has a large influence on the total amount of solar energy absorbed during summer. The additional heat stored in the upper ocean of approximately 752 MJ m−2 during the last decade increases sea surface… 

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References

SHOWING 1-10 OF 17 REFERENCES

Solar partitioning in a changing Arctic sea-ice cover

Abstract The summer extent of the Arctic sea-ice cover has decreased in recent decades and there have been alterations in the timing and duration of the summer melt season. These changes in ice

Recent changes in Arctic sea ice melt onset, freezeup, and melt season length

[1] In order to explore changes and trends in the timing of Arctic sea ice melt onset and freezeup, and therefore melt season length, we developed a method that obtains this information directly from

Sea ice conditions and melt season duration variability within the Canadian Arctic Archipelago: 1979–2008

Sea ice conditions and melt season duration within the Canadian Arctic Archipelago (CAA) were investigated from 1979–2008. The CAA is exhibiting statistically significant decreases in average

Arctic Ocean surface warming trends over the past 100 years

Ocean temperature profiles and satellite data have been analyzed for summertime sea surface temperature (SST) and upper ocean heat content variations over the past century, with a focus on the Arctic

The Arctic’s rapidly shrinking sea ice cover: a research synthesis

The sequence of extreme September sea ice extent minima over the past decade suggests acceleration in the response of the Arctic sea ice cover to external forcing, hastening the ongoing transition

Sunlight, water, and ice: Extreme Arctic sea ice melt during the summer of 2007

The summer extent of the Arctic sea ice cover, widely recognized as an indicator of climate change, has been declining for the past few decades reaching a record minimum in September 2007. The causes

Accelerated decline in the Arctic sea ice cover

Satellite data reveal unusually low Arctic sea ice coverage during the summer of 2007, caused in part by anomalously high temperatures and southerly winds. The extent and area of the ice cover

Distribution and trends in Arctic sea ice age through spring 2011

Analysis of a satellite‐derived record of sea ice age for 1980 through March 2011 shows continued net decrease in multiyear ice coverage in the Arctic Ocean, with particularly extensive loss of the

Albedo evolution of seasonal Arctic sea ice

There is an ongoing shift in the Arctic sea ice cover from multiyear ice to seasonal ice. Here we examine the impact of this shift on sea ice albedo. Our analysis of observations from four years of

Arctic Climate Variability and Trends from Satellite Observations

Arctic climate has been changing rapidly since the 1980s. This work shows distinctly different patterns of change in winter, spring, and summer for cloud fraction and surface temperature. Satellite