Even in a cold winter, Arctic sea ice is still very low



Most of us have experienced a very wimpy this winter, since the cold air stays in the car parked in the Arctic.

This makes for a relatively The cold winter Quarter at North High, which is good production of sea ice. Although Arctic sea ice this season reached its largest extent since 2013, it is still significantly lower than it was forty years ago. The Arctic is the fastest warming region on Earth, although there will always be fluctuations in winter sea ice is in a deep recession.

“While this year’s maximum sea ice extent is a hit from the past couple of years, it is still far below the average, away from the situation in the 1980s and 1990s,”Zack Labe, climate scientist and PhD candidate at the University of California Irvine campus.

“The bottom line is that the Arctic trend is still in the long-term toward more extensive ice cover throughout the year, but with the year of Change,”agrees Walter Meyer, a senior research scientist at the National Snow and Ice Data Center.

According to official statistics, after a pretty cold Arctic winter, the largest or the most amount of sea ice is the eleventh lowest in the 42 years of the satellite record, which is the highest for eight years. “It is not in any way indicate that the rebound, but a year of change, we want to see,”Meier.

The cold winter is to a large extent by a well-known fluctuations in the weather pattern called the Arctic Oscillation. This year, the area of high pressure under the Arctic keeping the cold Arctic air and the infamous polar vortex, the lock in place. This means that the increase in sea ice. But nothing extreme.

It was dark in the high North for the winter season, but in General, the Arctic suffer from the vicious Sun the relevant period, extracts its ice. This is the so-called albedo effect, where bright white sea ice melts(usually due to warm air temperature). This makes large tracts of deep ocean exposed to absorb more heat from the sun, which warms the oceans and in turn more melting of the ice. This is a relentless feedback loop of melting.

By the end of the summer, which makes the sea ice of the deeply melted before every winter starts.

“13 low(sea ice)area in the satellite era, all that happened in the past 13 years,”the National Snow and Ice Data Center said last year.

On top of the Arctic region of the relentless warming trend, fluctuating weather will always play a role in shaping the extent and volume of sea ice. Sometimes, this will cause bumps in the sea-ice, and sometimes drop.

“Changes in daily weather conditions play an important role in the evolution of Arctic sea ice,”Labe.

For example, the storm and the wind had dropped, the sea ice of the Bering Sea on the last week. This in the rapid decline of Arctic sea ice it A fourth lowest levelFor this time of the year, the record in the case.

But the big picture is still clear. Climatic conditions remain unchanged. The Earth is constantly warming—19 over the past 20 years the warmest of record and the Arctic is a significant change.

“The basic story is the same, but this year represents a little on the’bump on the overall downward trend,”said Meier.



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