by Météo Paris, 25 août 2018
Malgré des températures particulièrement élevées ces dernières semaines sur l’Hémisphère Nord, voire exceptionnelles sur l’Europe, le déclin des glaces de l’Arctique s’est vu ralenti.
Au 23 août, l’étendue des glaces de l’Arctique était d’approximativement 4.945 millions de kilomètres carrés. Des niveaux toujours particulièrement bas au regard de la moyenne observée sur la période 1981-2010 (6.866 millions de km2, soit un déficit de 28%). Néanmoins, ce niveau n’est « que » le 6e plus bas observé à cette date, très loin de la triste année 2012 (une superficie inférieure à 4 millions de km2 à la fin août). Une timide amélioration, puisque l’étendue de ces glaces avait alors été la 4e plus faible jamais observée sur l’ensemble du mois de juin.
Graphique de l’étendue des glaces de l’océan Arctique (en millions de km2) – Zachary Michael Labe
nb se reporter à la courbe rouge/see red curve
by Tony Heller, August 31, 2018 in ClimateChangeDispatch
Summer is over, and Greenland’s surface has gained 510 billion tons of ice over the past year – about 40% above normal. The surface mass budget is snow/ice accumulation minus melt.
by P. Gosselin, August 24, 2018 in NoTricksZone
As the Arctic summer ice melt approaches its peak, we can say with high certainty that this year’s ice melt will extend the trend of a rebounding Arctic ice mass by another year.
Arctic summer sea ice now growing 12 years
Our Japanese skeptic blogger and good friend Kirye reports using the data from the Danish Meteorological Institute (DMI) that peak summer Arctic sea ice volume upward growth trend has been extended yet another year – now 12 years.
Chart by Kirye. Data source: Danish Meteorology Institute (DMI).
by Tony Heller, August 20, 2018 in TheDeporableClimateScienceBolg
Arctic sea ice melt dropped to its lowest level since May 12 yesterday, and now the Arctic won’t be ice-free until July 20 of next year, 12:01 am.
by P. Gosselin, August 8, 2018 in NoTricksZone
Using data from the Danish Meteorological Institute (DMI), Japanese skeptic blogger Kirye just tweeted how Arctic sea ice volume has surged to the 3rd highest level in 16 years.
Data source. Danish Meteorological Institute. Chart source: Kirye.
by P. Homewood, Augustus 3, 2018 in NotaLotofPeopleKnowThat
According to DMI, average Arctic sea ice extent in July is at its highest level since 2005.
With temperatures at normal levels, there is little prospect of Peter Wadhams predictions coming true this year!
by P. Gosselin, July 21, 2018 in NoTricksZone
Recently climate catastrophe non-believers have been pointing out that Arctic sea ice volume has been gaining over the past years and has not trended downward for some dozen years now.
And global warming alarmists have been very silent on the subject of climate change now that global surface temperatures have cooled and Arctic and Greenland snow and ice have rebounded.
Embarrassed, they don’t want to be reminded of all the absurd predictions they made 10 years ago, with some as recently as just five years ago.
by Tony Heller, July 12, 2018 in TheDeplorableClimateScienceBlog
Arctic sea ice volume melt rates have started to slow, with ice volume 4th highest since 2003.
Temperatures near the pole have been below normal almost every day this summer.
by P. Gosselin, July 10, 2018 in NoTricksZone
Lately Arctic sea ice volume has been a topic which climate skeptics have been looking at quite closely.
According to Al Gore and a number of climate ambulance chasers, Arctic sea ice in late summer should have long disappeared by now, see here..
But then just a few years after, the Arctic sea ice area began to recover from its lows of 2007 and 2012. So immediately alarmists shouted that area was not really what mattered, but rather sea ice volume is what really counted. Okay, that made perfect sense. Mass is in fact what’s important, and not area, when worrying about polar ice disappearing …
by P. Gosselin, July , 2018 in NoTricksZone
German climate and weather analyst “Schneefan” (Snow Fan) here writes a summary of the first half of 2018 thus far. All data show that the surface temperature of the globe has been cooling strongly over the past months and polar ice mass growing.
He writes that in the first half of this year we have seen weak solar activity and La Nina conditions acting to cool the globe’s surface. Moreover Arctic and Antarctic ice mass have grown in comparison to the previous years. …
by P. Homewood, July 1, 2018 in NotaLotofPeopleKnowThat
As we all know, Greenland is warming up rapidly, causing the ice sheet to melt faster and faster.
Well, according to the BBC and New York Times, at least.
Only one slight problem – the temperature record shows quite a different story.
Each year, the DMI publishes the Greenland – DMI Historical Climate Data Collection:
by M. Bastach, June 28, 2018 in ClimateChangeDispatch
A group of scientists at the University of Rhode Island stumbled on something unexpected when analyzing data brought back from a 2014 expedition to western Antarctica.
Scientists found an abundance of the noble gas Helium-3, indicating there is a volcanic heat source beneath the Pine Island glacier — the fastest melting glacier in the South Pole. The findings were published in a study in the journal Nature Communications.
“When you find helium-3, it’s like a fingerprint for volcanism. We found that it is relatively abundant in the seawater at the Pine Island shelf,” chemical oceanographer Brice Loose, the study’s lead author, said in a statement.
See also here (National Science Foundation) and here
by Anthony Watts, June 22, 2018 in WUWT
Antarctic ice sheet is melting, but rising bedrock below could slow it down
An international team, led by DTU Space at the Technical University of Denmark with Colorado State University, has found that the bedrock below the remote West Antarctic Ice Sheet is rising much more rapidly than previously thought, in response to ongoing ice melt.
The study, “Observed rapid bedrock uplift in the Amundsen Sea Embayment promotes ice-sheet stability,” reveals new insights on the geology of the region and its interaction with the ice sheet and is published in the journal Science. The authors noted that the findings have important implications in understanding and predicting the stability of the ice sheet and Earth’s rising sea levels.
by Anthony Watts, June 18, 2018 in WUWT
From the “skating on thin ice” department.
According to a new paper published in the Journal of Geophysical Research, the observed mean thickness of the sea ice in the region north of (Arctic) Svalbard was substantially thinner (0.94 m) in 1955 than it has been in recent years (~1.6 m, 2015/2017).
by Michael Bastach, June 15, 2018 in A. Watts WUWT
A new paper about to be in press, comes at the end of a flurry of papers and reports published this week that claims Antarctica was losing ice mass. Zwally says ice growth is anywhere from 50 gigatons to 200 gigatons a year. NASA glaciologist Jay Zwally says his new study will show, once again, the eastern Antarctic ice sheet is gaining enough ice to offset losses in the west.