Sentences with phrase «sea ice over»

Reconstructed changes in Arctic sea ice over the past 1,450 years This graph from Cryosphere Today shows the same thing.

The AARI charts therefore add significantly to our understanding of the variability of Arctic sea ice over the last 8 decades, and we recommend their inclusion in future historical data sets of Arctic sea ice.

At the northern reaches of the globe, scientists measured an average of 3.92 million square miles of sea ice over the course of 2016, the lowest annual average since their measurements began in 1979, NOAA said.

Last winter the average thickness of sea ice over the whole Arctic fell by 26 cm (10 %) compared with the average thickness of the previous five winters, but sea ice in the western Arctic lost around 49 cm of thickness.

That captured the behaviour of the sea ice over the last year very well (I followed it almost daily, also as an amateur).

Stuck in the frozen sea ice over Christmas, the Baldwin - Ziegler North Pole expedition waits out the Arctic winter in 1901.

For example, while all of the global climate models participating in the most recent Intergovernmental Panel on Climate Change report show a decline in Arctic sea ice over the period of available observations, none of them match the severity of the trends we actually observe.

The research, reported in Geophysical Research Letters, showed that last winter the average thickness of sea ice over the whole Arctic fell by 26 cm (10 %) compared with the average thickness of the previous five winters, but sea ice in the western Arctic lost around 49 cm of thickness.

Our scenarios do look at that, and the way in which we mitigate will change the evolution of the sea ice over the Arctic.

OTOH Willard Tony protects his tiny flock by censoring Eli and many others, Now there is all sorts of fanciful at both dens of denial, unicorns and such, but it occurred to Eli that there must at least be proxy records way back into the past for Arctic Sea Ice extent, and, indeed there is, from Reconstructed changes in Arctic sea ice over thepast 1,450 years by Christophe Kinnard, Christian M. Zdanowicz, David A. Fisher, Elisabeth Isaksson, Anne de Vernal and Lonnie G. Thompson, Nature 479 (2011) 510.

It finds that the disappearance of sea ice over the Arctic Ocean could change the circulation of the Pacific Ocean, encouraging the jet stream to veer north.

Is there a well referenced article (from you or others) that deacribes the likely evolution of Arctic sea ice over the past two thousand years in chronological order, which, as far as possible, refers to the geographic areas that melted / expanded?.

«Reconstructed changes in Arctic sea ice over the past 1,450 years» http://www.nature.com/nature/journal/v479/n7374/full/nature10581.html

A landmark new study in Nature Climate Change finds the melting of the sea ice over the last 30 years at a rate of 8 % per decade is directly linked to extreme summer weather in the US and elsewhere in the form of droughts and heatwaves.

The report also noted the continuing retreat in Arctic sea ice over the summer.

https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/asl2.423 «In recent years, winter westerly winds over the Beaufort Sea and summer anticyclonic circulation over the Arctic toward the Fram Strait have contributed to accelerated decreases in sea ice over areas east of Europe and north of Alaska.

Behavior of the sea ice over the past winter and the spring and the large positive temperature anomalies in the Arctic (as high as 20 degrees C over large regions in the past winter) suggest that an extent near that of the 2012 minimum may occur again if there is large export of sea ice out to the Atlantic Ocean via the Fram Strait.

*** Weak and loopy jet stream: Arctic ice melt «already affecting weather patterns where you live right now» Melt / compaction of #Arctic sea ice over the last few days esp near Franz Joseph Islands (JAXA AMSR2.

• Kinnard et al publish a strong climate - change hockey - stick («Reconstructed changes in Arctic sea ice over the past 1,450 years», Nature 2011).

• Marcott et al publish a (self - admittedly) weak climate - change hockey - stick («Reconstructed changes in Arctic sea ice over the past 1,450 years», Science 2013).

Page 2 of 23 Duncan Steel: Perihelion precession, polar ice and global warming Introduction Record melting of Arctic sea ice over the past year (Schiermeier 2012) has been widely presumed to be a consequence of anthropogenic global warming (AGW), and yet a natural mechanism exists that may be responsible, at least in part.

Kay added that «the fate of sea ice over the next decade depends not only on human activity but also on climate variability that can not be predicted.»

Mapping the changes to the extent of sea ice over the last 40 years confirms that: on a graph, the lines are clustered together like threads in a hank of silk, warming and cooling in line with each other — until this year.

Since the tropical oceans have flattened out and solar does have its largest impact on the tropical oceans, I would expect about the same possibly some increase in Arctic sea ice over the next decade Not a consistent increase by any means, but I doubt it will make it to the 2 mkm ^ 2 and will trend towards a 6 million km ^ 2 average which is hardly «ice free».

Notice that the decrease in Arctic sea ice appears balanced by the increase in Antarctic sea ice, which means there is NO DECREASE in global sea ice over this period.

Will much of this ice remain in the central basin to rebuild the area of old, perennial sea ice over the coming years?

In this one, let's look at the evidence about arctic (and antarctic) sea ice over the last century or so.

The cooling of the stratosphere, and reduction of Arctic Sea ice over the long - term are two other very strong indicators that the increased greenhouse gases are impacting the rate of heat flow from ocean to space.

Of more relevance than attribution is the development of reliable forecasts of the Arctic sea ice over the next few decades, which clearly requires consideration and integration of all these processes.

Footage shot across the North Atlantic captured a stunning view of accumulating sea ice over Brighton, Newfoundland.

Or the 40 percent reduction in Arctic Ocean summer sea ice over the past 40 years.

The solid black line is the amount of sea ice over the year averaged from 1979 — 2000.

For example, recent results from the Met Office do show that there is a detectable human impact in the long - term decline in sea ice over the past 30 years, and all the evidence points to a complete loss of summer sea ice much later this century.

We're not talking about day trading here, we're talking climate and long range trends like a steady decline in sea ice over decades, shrinking glaciers world - wide, deforestation, etc..

[UPDATE, 7/14: A remarkable animation depicting the pulsing flow of Arctic sea ice over a stretch of years moved to the «jump» page because it was slowing the loading of Dot Earth for some users.]

(Note that Mr. Will questioned my use of that «many experts» shorthand, but used it himself; down below I'll later list some of the many experts I've consulted on sea ice over the last decade.)

Where is the mechanistic analysis that says that it is the sea ice over the last couple of years (and not SST, or north - south gradients, or strat - trop connections or whatever) that has caused this?

Kinnard et al, 2011, Reconstructed changes in Arctic sea ice over the past 1,450 years.

Even though the observed ice loss has accelerated over the last decade, the fate of sea ice over the next decade depends not only on human activity but also on climate variability that can not be predicted.

Is this because of a deficiency in CCSM4 or maybe because natural variability gave us a particularly steep decline in sea ice over the last 10 years?

a) Satellite image showing fast disintegration of sea ice over a polar continental shelf; b) Zoobenthos on an Antarctic continental shelf; c) Examples of sea mosses (specimens on the left are from an open - water location and hence have had more plankton to feed on); and d) Dead bryozoan and other benthic skeletons covering the seabed, most likely to be buried, sequestering their blue carbon in the seabed.

The bears depend on hunting seals on the surface of the sea ice over the continental shelf, most successfully from April to July.

The algorithm allowed the team to compare the extent of sea ice over the whole period from 1978 to 1994.

«The unmanned SRB buoy we built made it possible for the first time to generate continuous data on albedo and other properties of sea ice over a long period,» says Dr Gerland.

This type of analysis may be useful for future applications of using seismic records to track the strength of sea ice over large regions, which has been difficult to determine from satellite observations.»

Not exact matches

That half a degree is the difference between low - lying island states surviving, or Arctic ice remaining over the North Pole in summer, or increasing the risk of losing the Western Antarctic Ice Sheet or Greenland ice sheet (either one of which implies an eight - metre sea level risice remaining over the North Pole in summer, or increasing the risk of losing the Western Antarctic Ice Sheet or Greenland ice sheet (either one of which implies an eight - metre sea level risIce Sheet or Greenland ice sheet (either one of which implies an eight - metre sea level risice sheet (either one of which implies an eight - metre sea level rise.)

I never watched the Antarctic sea where today pioneers press their perilous way over the polar ice pack.

Gore begins with hero scientists like Roger Revelle, who first began to imagine the magnitude of this tragedy, and continues through the latest scientific findings, like last fall's revelation that the ice over Greenland seems to be melting much faster than anyone had predicted — news that carries potentially cataclysmic implications for the rate of sea - level rise.

Okay, ice cream feign over here, but i have NEVER added sea salt.

Female polar bears prowling springtime sea ice have extreme weight swings, some losing more than 10 percent of their body mass in just over a week.