Sentences with phrase «arctic summer ice»

We won't need to wait long for that: The arctic summer ice will be gone in about a decade.

The range of responses (2.9 to 5.6 million square kilometers) illustrates several of the challenges faced by any forecast of arctic summer ice evolution.

MattN (13:03:55): «I can think of another reason that arctic summer ice is the talking point for AGW.

The arctic summer ice minimum extent also dropped, about 20 to 25 %, during this period when air temperatures were falling.

Glaciers have continued to melt at accelerating rates, arctic summer ice is declining at accelerating rates, more 6 - 10 thousand year old ice shelves are collapsing.

Is the arctic summer ice cap melting?

Not exact matches

Virtually ice - free summers in the arctic sea could well arrive by 2030, with troubling implications for accelerated albedo feedback and possibly disruptive changes in the jet stream.

Since IPCC (2001) the cryosphere has undergone significant changes, such as the substantial retreat of arctic sea ice, especially in summer; the continued shrinking of mountain glaciers; the decrease in the extent of snow cover and seasonally frozen ground, particularly in spring; the earlier breakup of river and lake ice; and widespread thinning of antarctic ice shelves along the Amundsen Sea coast, indicating increased basal melting due to increased ocean heat fluxes in the cavities below the ice shelves.

Even with a cold winter and cool summer, arctic ice STILL declined to a new record low.

If we are to lend credence to Recovery mechanisms of Arctic summer sea ice, by Tietsche et al, shouldn't the arctic have «recovered» after 2007?

An ice - free arctic in the summer won't get rid of the need for ice - breakers in fall, winter, and spring.

I think what Alastair is alluding to is the fact that, say by 2050 when the arctic ocean will conceivably be ice - free in the summer, the atmosphere will have a much higher relative humidity than it has currently because of the open air = water interface, so this will have a magnifying effect beyond just the feedback from increased CO2.

eg after a decade of no more MYI and several months a year in summer / fall of almost no arctic sea ice.

I am very well aware and have previously blogged that there are multiple factors that determine the degree of ice lost any given year — but the literature is clear that even in 2007, global warming played «a large part» (see «What drove the dramatic retreat of arctic sea ice during summer 2007?

If some suitably huge area of the arctic is totally free of ice this summer, could it then be claimed with confidence that this was the first time such a large region was free of ice in «x» years, where x is some largeish number like 50,000 or 100,000?

Lower Atmosphere is warming, oceans upper layers are warming, arctic summer sea ice is disappearing, WAIS and Greenland are both losing mass annually and the majority of the earths glaciers are losing mass too.

-- The Minimum Sea Ice Extent in the arctic was lower in 1990 than in 2006 — ie the arctic ice summer (September) minimum has been more - or-less stable for 16 yeaIce Extent in the arctic was lower in 1990 than in 2006 — ie the arctic ice summer (September) minimum has been more - or-less stable for 16 yeaice summer (September) minimum has been more - or-less stable for 16 years.

The arctic will be ice free in summer within 5 - 6 years, progressing rapidly to all the remaining 9 months of the year as the arctic ocean continues to warm.

If, as seems likely, the arctic sea ice loss worsens in coming summers, we will get rain in increasing amounts on increasingly large areas of Greenland.

Zhang, J., R. Lindsay, M. Steele, and A. Schweiger (2008), What drove the dramatic retreat of arctic sea ice during summer 2007?

as you can see both show no death spiral, nor is the arctic going to be ice free this summer as opined back in 2007 by some of their ilk

Tagged annual summer minimum, arctic sea ice, Beaufort Sea, body condition, Cherry, Chukchi, declining sea ice, Eastern Beaufort, good news, heavy sea ice, Hudson Bay, ice - free Arctic, litter size, loss of summer ice, Pilfold, polar bear, record low, Regehr, ringed seals, Rode, sea ice extent, Southern Beaufort, Stirling, summer ice minimum, summer sea ice, thick spring ice

My question still stands: why was there a large arctic sea ice melt in 2008 and 2009 and not in 1998, given that 1998, for whatever reason, was a year of high summer temperatures in the Northern Hemisphere?

The latest movie movie (5) shows the rapid retreat of arctic sea ice in summer 2007 and 2008.

The second movie (2) illustrates the shrinking of arctic summer (September) sea ice, while the third movie (3) shows the variability of winter (March) sea ice.

Tagged adaptation, Arctic, arctic seals, biological responses, climate change, climate extremes, Cronin, evolution, facts, genetics, glacial, he, ice - free summer, information, interglacial, LGM, marine mammals, paleoclimate, polar bear, resilience, sea ice, USGS, walrus

we are talking about several hundred years with an ice free summer arctic.

And remember, the satellite data are one small part of a vast amount of data that overwhelmingly show our planet is warming up: retreating glaciers, huge amounts of ice melting at both poles, the «death spiral» of arctic ice every year at the summer minimum over time, earlier annual starts of warm weather and later starts of cold weather, warming oceans, rising sea levels, ocean acidification, more extreme weather, changing weather patterns overall, earlier snow melts, and lower snow cover in the spring...

The Sea Ice Outlook provides a forum for researchers to contribute their understanding of the state of arctic sea ice and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniIce Outlook provides a forum for researchers to contribute their understanding of the state of arctic sea ice and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniice and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniice minima.

Lower ice concentrations in 2011 relative to 2007 in late May indicate increased sensitivity of the arctic ice cover to atmospheric dynamical forcing, with implications for ice transport during summer.

Polar bears, arctic summer sea ice, regional droughts and floods, coral bleaching, hurricanes, alpine glaciers, malaria, etc., all depend not on GATA but on a huge number of regional variables including temperature, humidity, cloud cover, precipitation, and direction and magnitude of wind and the state of the ocean.

Actually the argument makes more sense applied to the arctic sea ice — both in winter and summer, since it is at a much higher average latitude and therefore affects albedo much less.

If the summer ice is downward trending in the arctic, other ice must be compensating for it right, or the net would be downward????

What kind of odds would you give me that 2013 summer arctic sea ice will be lower than 2012?

Until the ice / snow melts in the summer the arctic basically receives no net solar radiation.

A sea ice free summer arctic within 30 years: an update from CMIP5 models.

In short, 2008's summer arctic ice extent observation is not a wheel off the GW bandwagon — it is one more nail in the coffin of denialism.

Scientifically, the Sea Ice Outlook provides a focus for researchers to evaluate their understanding of the state of arctic sea ice, and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniIce Outlook provides a focus for researchers to evaluate their understanding of the state of arctic sea ice, and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniice, and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniice minima.

The Sea Ice Outlook provides a forum for researchers to evaluate their understanding of the state of arctic sea ice and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniIce Outlook provides a forum for researchers to evaluate their understanding of the state of arctic sea ice and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniice and for the community to jointly assess a range of factors that contribute to arctic summer sea ice miniice minima.

In years such as 2008, initial sea ice conditions at the end of spring may have more of an influence on a September arctic sea ice extent Outlook than a forecast of summer wind fields, which dominated the ice situation in 2007.

All of this will be over by 2015, when the records of 2010 and 1998 will have been obliterated by increased solar activity, ENSO and decreased albedo as we go into virtually ice free arctic summers, oh and increased GHG concentrations of course.

Information about future summer arctic sea ice conditions based on 2008 data is inconclusive.

Information about future summer arctic sea ice conditions based on 2008 data is equivocal.

I was wondering if anyone has studied the effects of all the hundreds of ships and ice breakers that go to the arctic (much fewer in the Antarctic) to study it each spring / summer and make documentaries like the green peace one above.

If it was supposed to melt all the polar ice why is it that even during summer months the arctic ocean has been unnavigatable the past 2 yrs?

Zhakarov's model is conceptually simple: during periods of high precipitation when winter ice forms readily, summer ice cover increases, the atmosphere cools, the arctic front together with its associated rain belt shifts south so that freshwater input to the Arctic Ocean decreases, and winter ice cover is thicker, has a deeper draft, and so survives better in summer.

It emphasises that there is a strong internal relationship between the formation, stability and extent of sea ‐ ice and the structure of the upper layer of the Arctic ocean: it is the relative area and depth of low - salinity arctic water above the halocline that are paramount to ice formation and its summer survival.

And, once the summer season is passed, the ever - colder Arctic air masses remove even more heat from the under - ice water up through the sea ice by conduction into the -25 deg arctic air.

In addition the AMO is even stronger in the summer period which helps explain that the arctic ice is losing as much as it is during the summer.

Satellite data since 1978 show that annual average arctic sea ice extent has shrunk by 2.7 [2.1 to 3.3] % per decade, with larger decreases in summer of 7.4 [5.0 to 9.8] % per decade.