Sentences with phrase «melt season ended»

Some channels in the Northwest Passage are opening, particularly along the famed Amundsen Route, so it may yet open before the melt season ends.

Not exact matches

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«Our timing was serendipitous, as it meant we were able to see changes in microbial processes over an extremely fast melting season and observe a process from start to end across all habitats on a glacier surface.

The reason: until the end of the melting season the fate of the ice is ultimately determined by the wind conditions and air and water temperatures during the summer months.

Its minimum summertime extent, which occurs at the end of the melt season, has been decreasing since the late 1970s in response to warming temperatures.

Climate change is pushing temperatures up most rapidly in the polar regions and left the extent of Arctic sea ice at 1.79 million square miles at the end of the summer melt season.

This report describes simulations of future sea - ice extent using the NCAR CCSM3, which point to the possible complete loss of sea - ice at the end of the melt season as soon as 2040.

The sea ice that caps the Arctic Ocean naturally waxes and wanes with the seasons, reaching its maximum area at the end of winter, before the reemergence of the sun in spring starts off the melt season.

The volume of sea ice left at the end of the summer melt season seems to vary more from year to year than had perhaps been previously appreciated; after declining for several years, sea ice volume shot up after the unusually cool summer of 2013, the data revealed.

Winter snow tends to accumulate in the crevasses and gullies, so that at the end of winter there is already ice at the surface — so the melt season very close to the margin is very long.

That finger won't be there by the end of the melt season and since the melt rate is largely a function of perimeter, the melt rate will be relatively rapid for this time of year.

Also good to remember is that there is a high probability that the effects of Arctic sea ice decline are felt before the Arctic becomes effectively ice - free (below 1 million km2 sea ice area at the end of a melting season).

Regarding post 3, the 2008 melt season is not over — typically it ends around the autumnal equinox when sunshine decreases, so there are a good two weeks of melting to go.

Whether the area around the North Pole is free of sea - ice at the end of this year's melt season is not the important problem.

With any luck, the insulating material reduce the amount of ice that melts from the summer heat until it's removed at the end of the season.

This report describes simulations of future sea - ice extent using the NCAR CCSM3, which point to the possible complete loss of sea - ice at the end of the melt season as soon as 2040.

Abstract: «Comparison of sea - ice draft data acquired on submarine cruises between 1993 and 1997 with similar data acquired between 1958 and 1976 indicates that the mean ice draft at the end of the melt season has decreased by about 1.3 m in most of the deep water portion of the Arctic Ocean, from 3.1 m in 1958 — 1976 to 1.8 m in the 1990s...»

In the Arctic, for example, data collected by Europe's Cryosat spacecraft pointed to about 9,000 cubic kilometers of ice at the end of the 2013 melt season.

Air pressure changes, allergies increase, Alps melting, anxiety, aggressive polar bears, algal blooms, Asthma, avalanches, billions of deaths, blackbirds stop singing, blizzards, blue mussels return, boredom, budget increases, building season extension, bushfires, business opportunities, business risks, butterflies move north, cannibalistic polar bears, cardiac arrest, Cholera, civil unrest, cloud increase, cloud stripping, methane emissions from plants, cold spells (Australia), computer models, conferences, coral bleaching, coral reefs grow, coral reefs shrink, cold spells, crumbling roads, buildings and sewage systems, damages equivalent to $ 200 billion, Dengue hemorrhagic fever, dermatitis, desert advance, desert life threatened, desert retreat, destruction of the environment, diarrhoea, disappearance of coastal cities, disaster for wine industry (US), Dolomites collapse, drought, drowning people, drowning polar bears, ducks and geese decline, dust bowl in the corn belt, early spring, earlier pollen season, earthquakes, Earth light dimming, Earth slowing down, Earth spinning out of control, Earth wobbling, El Nià ± o intensification, erosion, emerging infections, encephalitis,, Everest shrinking, evolution accelerating, expansion of university climate groups, extinctions (ladybirds, pandas, pikas, polar bears, gorillas, whales, frogs, toads, turtles, orang - utan, elephants, tigers, plants, salmon, trout, wild flowers, woodlice, penguins, a million species, half of all animal and plant species), experts muzzled, extreme changes to California, famine, farmers go under, figurehead sacked, fish catches drop, fish catches rise, fish stocks decline, five million illnesses, floods, Florida economic decline, food poisoning, footpath erosion, forest decline, forest expansion, frosts, fungi invasion, Garden of Eden wilts, glacial retreat, glacial growth, global cooling, glowing clouds, Gore omnipresence, Great Lakes drop, greening of the North, Gulf Stream failure, Hantavirus pulmonary syndrome, harvest increase, harvest shrinkage, hay fever epidemic, heat waves, hibernation ends too soon, hibernation ends too late, human fertility reduced, human health improvement, hurricanes, hydropower problems, hyperthermia deaths, ice sheet growth, ice sheet shrinkage, inclement weather, Inuit displacement, insurance premium rises, invasion of midges, islands sinking, itchier poison ivy, jellyfish explosion, Kew Gardens taxed, krill decline, landslides, landslides of ice at 140 mph, lawsuits increase, lawyers» income increased (surprise surprise!)

But, of course, after having broken the number for lowest maximum on record back in April, this means total volume decrease for the 2017 melting season was lower than it was at the end of the last 10 melting seasons, coming in slightly higher than 2006 (16,217 km3 vs 16,198 km3):

In fact, although climate models predict that Arctic sea ice will decline in response to greenhouse gas increases, the current pace of retreat at the end of the melt season is exceeding the models» forecasts by around a factor of 3 (Stroeve 2007).

Warmist Claim: «Derek Arndt, who heads the climate monitoring branch at NOAA's National Climatic Data Center in Asheville, N.C., said the new data should be viewed in the context of the record retreat of snow cover in the Northern Hemisphere at the end of the melt season...»

Ablation is measured by emplacing stakes in the glacier at the end of the previous melt season or the beginning of the melt season.

Annual net balance on eight North Cascades glaciers during the 1984 - 1994 period has been determined by measurement, of total mass loss from firn and ice melt and, of residual snow depth at the end of the summer season.

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.

Recently published research by Barber and colleagues shows that the ice cover was even more fragile at the end of the melt season than satellite data indicated, with regions of the Beaufort and Chukchi Seas covered by small, rotten ice floes.

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

http://www.bbc.com/news/science-environment-25383373 Data from Europe's Cryosat spacecraft suggests there were almost 9,000 cu km of ice at the end of this year's melt season.

While the 2010 melt season started with more multi-year ice (MYI) in the Beaufort and Chukchi seas than seen in recent years and an overall greater percentage of MYI arctic - wide, by the end of August nearly all of this MYI had melted out or ice concentration had fallen below 40 %.

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

When we get a arctic season with great cyclones, those cyclones can lead to a break up of the ice (more lateral melting), If currents conspire we end up with more transport out of the arctic (ice then melts in the warmer water), and we get Eckmen pumping and more ice melts.

After a weeklong delay in data availability from a 61st satellite maneuver in 13 years to makeup low earth orbit drag, we find Greenland ice reflectivity (a.k.a. albedo) returning toward higher values, evidence of fresh snowfall accumulation and accompanying lower temperatures now as the melt season approaches its end.

BBC News reports that data from Europe's Cryosat spacecraft shows that Arctic sea ice coverage was nearly 9,000 cubic kilometers (2,100 cubic miles) by the end of this year's melting season, up from about 6,000 cubic kilometers (1,400 cubic miles) during the same time last year.

However, by the end of the 2007 melt season, a standard ocean - going vessel could have sailed smoothly through.

Anomalies in ice albedo or downwelling shortwave radiation at the start of the melt season have more than a five-fold larger impact on solar heating of ice than those at the end of the melt season (Perovich et al., J. Geophys.

At the end of the melt season, there was a considerable area of low - concentration (and likely relatively thin) sea ice near the ice edge, particularly in the northern Beaufort / Chukchi Seas.

Below is a nice visualisation by NASA of the actual satellite observations of the Arctic melting season, which starts in March and ends in September each year.

Meanwhile, up in the Arctic, distressing new information from the US National Snow and Ice Data Center in Boulder, Colorado, shows that Arctic sea ice extent has settled to its fourth - lowest level ever measured at the end of the most recent melt season.

Climate change is pushing temperatures up most rapidly in the polar regions and left the extent of Arctic sea ice at 1.79 million square miles at the end of the summer melt season.

The sea ice minimum occurs at the end of the summer melting season.

The actual extent lies towards the top end of all these central ranges (Figure5), a fact likely to reflect the abrupt slowing of ice melt late in the season.

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.

The summer melt season usually begins in March and ends sometime during September.

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).

Extensive open water at the end of the summer melt season, combined with warmer autumns, delay the autumn freeze - up.

(Understand, though, that the discussion is at a slower pace now, since the melt season has ended.

Its minimum summertime extent, which occurs at the end of the melt season, has been decreasing since the late 1970s in response to warming temperatures.

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.

However, with approximately a month left in the melt season, it is very unlikely that the September minimum will end up above 5 million square kilometers.

As the melt season draws to a close, many of the forecasts based on statistical linkages between the end of July ice conditions and the September minimum improve in their forecasting skill.