Sentences with phrase «ice area extent»

In early 2017, the Arctic, Antarctic and Global Sea Ice Area Extent were each at the lowest level in the data set that starts 1979.

Not exact matches

«The low pressure tends to spread out the ice over a larger area, slowing the decline in extent,» he added.

The new Arctic Now product developed by the Finnish Meteorological Institute shows with one picture the extent of the area in the Northern Hemisphere currently covered by ice and snow.

The mass media (to the limited extent they covered the issue) were confused, sometimes predicting a balmy globe with coastal areas flooded as the ice caps melted, sometimes warning of the prospect of a catastrophic new ice age.

In the last three years, the sea ice's extent - the ocean area in which a defined minimum of sea ice can be found — was at its lowest in the 30 - year satellite record.

The annual average extent of Arctic sea ice is currently declining at about half a million square kilometres per decade — equivalent to about twice the area of the UK.

An image of an area of the Arctic sea ice pack well north of Alaska, captured by the MODIS instrument on NASA's Aqua satellite on Sept. 13, 2013, the day before the National Snow and Ice Data Center estimated Arctic sea ice to have reached its minimum extent for the yeice pack well north of Alaska, captured by the MODIS instrument on NASA's Aqua satellite on Sept. 13, 2013, the day before the National Snow and Ice Data Center estimated Arctic sea ice to have reached its minimum extent for the yeIce Data Center estimated Arctic sea ice to have reached its minimum extent for the yeice to have reached its minimum extent for the year.

As the Arctic sea - ice reaches its summer minimum extent, it is clear that it has yet again shrunk to one of the smallest areas in recent decades, 10 % above the record minimum set last year.

Earlier this month — on 17 March — the extent of Arctic sea ice peaked at nearly 15 million square kilometers, covering an area roughly twice the size of Australia.

Complementary analyses of the surface mass balance of Greenland (Tedesco et al, 2011) also show that 2010 was a record year for melt area extent... Extrapolating these melt rates forward to 2050, «the cumulative loss could raise sea level by 15 cm by 2050 ″ for a total of 32 cm (adding in 8 cm from glacial ice caps and 9 cm from thermal expansion)- a number very close to the best estimate of Vermeer & Rahmstorf (2009), derived by linking the observed rate of sea level rise to the observed warming.

The area of the Arctic Ocean covered by sea ice in September, when the annual minimum occurs, was the sixth lowest extent in the satellite record, going back to 1979.

This week, Arctic sea ice extent - that is, the total ocean area in which the ice concentration is at least 15 percent - was at 1.96 million square miles.

The extent of global sea ice coverage reached its smallest area ever recorded in 2016, new data show.

The extent of Arctic sea ice reached the maximum area of its seasonal cycle on March 7th coming in at 14.42 million km2.

As of January 17, for instance, the global extent (area) of sea ice is at its smallest point in potentially thousands of years.

Earlier this week, scientists confirmed the area of Arctic Ocean covered by sea ice — known as sea ice extent — reached a record low in November.

Historically, a new low sea ice extent (area) is set every five years, with small recoveries in - between.

The data presented here indicate that the area of undersaturation presently extends to approximately 20 % of the Canadian Basin in the late summer months, when sea ice is near its minimum extent.

The major areas of anomalous warmth were around the Arctic, which also saw record low sea ice extent during January and February.

We see that the arctic sea ice extent has increased since then, currently up around the 2004 levels, so we're told that it's not actually the area, it's the thickness and what birthday it's celebrated.

Although you really can't check this assertion since the data is not really available anywhere — the Cryosphere has some charts of sea ice area but where are the numbers — where are the sea ice extent numbers.

And, the post looked at possibilities for future sea ice area and volume, but not for extent.

Historically, a new low sea ice extent (area) is set every five years, with small recoveries in - between.

Extent, for once, is crucial in determining the amount of absorbed solar radiation, the area of polar bear (and other animals») habitat, the amount of snow that falls onto sea ice, etc..

Norway's Nansen Center also tracks Arctic ice extent and area.

Scientists at the University of Illinois, Urbana - Champaign, who monitor the area of floating ice, instead of the extent of ocean mostly covered with ice, charted a similar trend.

-- I presume you've used sea - ice area / extent, that's OK I've got them daily back to 1979.

I've noted his work before, but it never hurts to repeat that Andy Lee Robinson has been creating effective animated graphs of estimated sea ice volume (as distinct from area or extent) that provide a long view of shifting conditions.

Specifically, I use a formula based on physics of energy absorption, using snow cover, and June ice extent / area numbers.

There are two ways to categorize the amount of ice: by measuring the extent (essentially the area of the ocean covered by ice, though in detail it's a little more complicated) or using volume, which includes the thickness of the ice.

The blue on the left map shows the extent of the ice, which was greater in area than Antarctica and 3000 m (10,000 feet) deep in the dark blue region centered on Hudson Bay.

Ice cap - A dome shaped ice mass, usually covering a highland area, which is considerably smaller in extent than an ice sheIce cap - A dome shaped ice mass, usually covering a highland area, which is considerably smaller in extent than an ice sheice mass, usually covering a highland area, which is considerably smaller in extent than an ice sheice sheet.

Thus, even though the ice extent is about equal to the long term average right now, for summer weather typical of the past few years, the decline in ice area will be more rapid than in other years.

Sea ice extent is defined by the area in which ice concentration exceeds 15 percent.

As of September 5, sea ice extent remains below average everywhere except for a small area within the Laptev Sea.

Just like the mean ice extent and area in the Arctic should not be used to speak of the «Arctic».

In outline, the model supposes that the rate of change of ice extent has two terms - accumulation proportional to its length, and loss at the grounding line which is proportional to the cross-section area there, which because a constant width is assumed is proportional to the depth of the ice.

Just that if ice extent was low during the NH autumn, then there was a probability that there would be higher then average snowfall in certain NH areas.

Ice around Iceland (the number of weeks when ice was observed in this case) must correlate very well with the arctic sea ice extent / area, at least with the annual maximIce around Iceland (the number of weeks when ice was observed in this case) must correlate very well with the arctic sea ice extent / area, at least with the annual maximice was observed in this case) must correlate very well with the arctic sea ice extent / area, at least with the annual maximice extent / area, at least with the annual maximum.

The paper actually talks about total snowfall, not extent and it does point out that it is autumn sea ice extent that is the important factor, whereas Willis has looked at total annual sea ice area and snow extent as opposed to total fall.

Sea ice extent is defined as the surface area enclosed by the sea ice edge (where sea ice concentration falls below 15 %).

One of the confusing issues that newbies run into is the distinction between the various measures of arctic ice, including «area» vs «extent».

In 1979, when satellites first measured it, September Arctic sea ice extent was roughly equivalent to the area of Australia.

Using satellites we can estimate both sea ice area, which is the area of the sea which is ice - covered, and ice extent, which is the area of ocean which has 15 % or more ice cover.

It's easy to get daily up - to - date data on arctic ice extent from JAXA, and on arctic ice area from cryosphere today.

The region's sea ice extent — defined by NSIDC as the total area covered by at least 15 percent of ice — varies from year to year because of changeable weather conditions.

The sea ice extent measure is broader, including areas of ocean where ice covers 15 % of the surface area.

What, if anything, does extent (area) tell us about the volume, or mass (which is the only metric that really matters), of the ice cover?

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.

As Stroeve et al. (2012) discuss, newer climate models have made some progress in this area, but still can not account for the full extent of the Arctic sea ice decline.