Sentences with phrase «sea 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

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..

-- 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.

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 Ssea ice extent remains below average everywhere except for a small area within the Laptev SeaSea.

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

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.

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.

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.

Annual Antarctic sea ice extent (total area of at least 15 % ice concentration) for selected years since 1979.

Finally, there is no mention of the record for Antarctic sea ice extent in the red area of the Italian flag.

The ’14 September sea - ice extent is correlated with ’14 melt - pond area in spring, which is correlated with the ’13 September sea - ice extent, which ultimately is correlated with an independent variable: solar energy.

But I have to say, sea ice area or extent are not enough for me.

I thought this was an area of specialty of yours and this storm and the resultant large loss of sea ice area and extent certainly were to topic of conversation among those who follow the cryosphere closely.

A regression - based forecast for September ice extent around Svalbard (an area extending from 72 — 85N and 0 — 40E), which uses May sea surface temperatures, the March index of the Arctic Oscillation, and April ice conditions as predictors, yielded a mean ice extent in September 2010 of 255,788 square kilometers around Svalbard.

Arctic sea ice volume, area, and extent have been in long - term decline for decades, and this decline has accelerated over the past 5 years.

i.e -(if you have 1 Km ^ 2 of sea filled 15 %, ice - extent counts it as 1Km ^ 2 while area counts it as 15 % of 1Km ^ 2 or 0.15 Km ^ 2)

They found find that the Arctic sea - ice minimum can be accurately forecasted from melt - pond area in spring with a strong correlation between the spring pond fraction and September sea - ice extent.

Even though the area of Antarctic ice has increased in recent years the volume has fallen so, with sea ice extents, it isn't simply a question of deducting one increase from another decrease.

2012's sea ice area and extent were already trending low this year, but damage done to the thin and low concentration of ice by this storm almost ensures that 2012 will eclipse 2007 in all categories as the lowest sea ice on record by the time the September low is set.

Reasoning for a decrease in sea ice extent from recent years, perhaps approaching new record - low minimum, focuses on the below - normal sea ice thickness overall, the thinning of sea ice in coastal seas, rotting of old multi-year sea ice, warm temperatures in April and May 2010, and the rapid loss of sea ice area seen during May.

We'll see very soon, if Wyatt is correct then no global temperature record nor a record low sea ice extent, area or volume within the next year.

Not only does this low - pressure area, or cyclone, look bigger, more intense and longer - lasting than the one from last year, the ice also seems to be in a weaker state than ever, as evidenced by the fact that 2012 trend lines on both sea ice area and sea ice extent graphs track lower than previous record years, despite weather that until recently would completely stall the decline.

This sea ice area number will always be smaller than the number for sea ice extent, though it can approach it quite closely when the pack is well - defined, with nice neat edges.

Cartoon of different paleoenvironmental scenarios of sea ice and ice sheet extent at the East Siberian Continental Margin / Southern Lomonosov Ridge area.