Sentences with phrase «average melting season»

If this year's September mean does drop below 5 million km2 it would end up well below the previous two rebound years, but still in 4th - 6th place, which would make it an average melting season.

And an average melting season nowadays is well below the long - term average, of course.

Not exact matches

Satellite data show that, between 1979 and 2013, the summer ice - free season expanded by an average of 5 to 10 weeks in 12 Arctic regions, with sea ice forming later in the fall and melting earlier in the spring.

2016 experienced the earliest melt, the latest onset of snow in autumn, and the longest snow - free season in 115 years of record - keeping — about 45 percent longer than the average over the previous four decades.

But over the past decades, the melt season has grown longer and the average extent of Arctic sea ice has diminished, changing the game for many Arctic marine mammals — namely beluga, narwhal and bowhead whales; ringed, bearded, spotted, ribbon, harp and hooded seals; walruses; and polar bears.

Howell points out that concentration of MYI in the region is well below the historical average and that it is likely the seasonal first - year ice will clear during the melt season.

Using this approach and taking into consideration that the survivability of ice during the summer melt season has changed in recent years, gives us an average estimate of 4.59 106km2, using ice survival rates from the last 5 summers.

Well, it nearly * tripled * from mid February to late March, yet never reached above about 65 % of average at any point this season (and recent record warmth has already triggered melting; the snowpack is already back down to 55 % of average for the date).

DMI says, The surface mass balance is calculated over a year from September 1st to August 31st (the end of the melt season) For the 2016 - 17 SMB year, which ended yesterday, the ice sheet had gained 544bn tonnes of ice, compared to an average for 1981 - 2010 of 368bn tonnes.

The warm year saw the Greenland ice sheet experience above average melting for 90 % of the «melt season», the report says.

Method: Based on extrapolation of end of July extent based on 1979 — 2007 average decline rates through the rest of the melt season.

Figure 2: DMI summer melt season temperatures and annual DMI temperature anomaly as well as five year running averages

Because of this slow - down, NSIDC changed its forecast methodology to use the average decline rates through the end of the melt season.

According to the press release: «This trio of images shows changes between 1979 and 2007 in the average date of melt onset in the spring (left), the first autumn freeze (center), and the total average increase in the length of the Arctic sea ice melt season.

The melting season — i.e. the length of time in which continuous melting occurs — has increased on average by 6.4 days for every decade between 1979 and 2007.

The 2012 melt season started off hopefully, with April sea ice extent near the 1979 - 2000 average.

Lower the temps and you'll probably get less snow on average, which will then melt out faster when the season turns and temps rise again.

In 2005 the Greenland ice sheet lost around 53 cubic miles (220 cubic kilometers) of mass — more than two times the amount it lost in 1996 (22 cubic miles, or 90 cubic kilometers).5 The melt area set a new record in 2007: it was about 60 percent larger than the previous record in 1998, and extended farther inland.7, 8 By 2007 the melt season at elevations above 6,500 feet (2,000 meters) was a month longer than the average from 1988 to 2006.9

Of the 15 million square kilometers (5.8 million square miles) of sea ice that exist during winter, on average, 7 million square kilometers (2.7 million square miles) remain at the end of the summer melt season.

At the end of the melt season, September 2007 sea ice was 39 percent below the long - term average from 1979 to 2000 (see Figure 2).

The city reports an average snowfall of 55 inches per season, and this can lead to serious flooding issues during the spring melt - off.