Archive for the ‘sea ice’ Category

Credit: NSIDC

Credit: NSIDC


A trifle cynical perhaps, but it shows it’s possible to claim almost anything you want about sea ice observations. Recently NASA was ‘blaming’ the geology for the contrasting polar variations. Now it’s the IPO.
H/T GWPF

The recent trend of increasing Antarctic sea ice extent — seemingly at odds with climate model projections — can largely be explained by a natural climate fluctuation, according to a new study led by the National Center for Atmospheric Research (NCAR).

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Gentoo penguins at Palmer Archipelago, off the Antarctic Peninsula [image credit: Liam Quinn / Wikipedia]

Gentoo penguins at Palmer Archipelago, off the Antarctic Peninsula [image credit: Liam Quinn / Wikipedia]


Looks like Antarctic climate warming scares have gone into a death spiral. What a shame after all those man-made attempts at doom and gloom, and harsh attacks on critics.
H/T GWPF

A group of scientists have just published a study that tries to explain why Antarctica isn’t warming as predicted, and its ice isn’t melting as climate models say it should be.

As Reuters reports, the researchers identified flows of cold, deep water as the primary reason our models are failing down there: A persistent chill in the ocean off Antarctica that defies the global warming blamed for melting Arctic ice at the other end of the planet is caused by cold waters welling up from the depths after hundreds of years, scientists said on Monday.

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Antarctic sea ice reached a record maximum extent while the Arctic reached a minimum extent in the ten lowest since satellite records began. Why are these trends going in opposite directions? Credits: NASA Goddard Space Flight Center/Joy Ng

Antarctic sea ice reached a record maximum extent while the Arctic reached a minimum extent in the ten lowest since satellite records began. Why are these trends going in opposite directions?
Credits: NASA Goddard Space Flight Center/Joy Ng


It’s hard not to suspect a politicized element to the results of such a study due to the NASA/NOAA factor. They say Antarctic sea ice has increased ‘just slightly’ since the 1970s but some might put it stronger than that.

Why has the sea ice cover surrounding Antarctica been increasing slightly, in sharp contrast to the drastic loss of sea ice occurring in the Arctic Ocean? A new NASA-led study finds the geology of Antarctica and the Southern Ocean are responsible.

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Hiding the non-decline in polar bear numbers? Why would anyone want to bury good news – unless they had an agenda?

polarbearscience

It’s been six months and still the IUCN Polar Bear Specialist Group has not updated its website with a link to the 2015 IUCN Red List assessment for polar bears, which was made public with some fanfare in November 2015. They are not the only group still ignoring the Red List decision but their silence is the most damning – the IUCN is the parent body of their organization.

On May 7th, I wrote to the IUCN Red List folks (redlist@iucn.org) about this situation (excerpt below) but as yet have received no reply.

PBSG website banner May 10 2016In part, my letter to the Red List said:

“The IUCN PBSG website is one of the first places people are directed to when they look online for official information about the conservation status of polar bears. Yet by early May 2016, no mention is found of the November 2015 Red List assessment of polar bears on…

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H/T to Paul Vaughan for pointing to a series of comments by Bill Illis on wuwt, which describe and differentiate between the under-ice salt induced sinking which forms Arctic deep water and the Greenland-melt surface waters which flow into the Gulf Stream. These were in response to an alarmist paper which claims that increased freshwater flux could weaken the AMOC and thus global circulation.

Bill Illis responds:

And the salinity in the ocean in the area in question has changed by exactly ZERO. The paper doesn’t address this issue one iota.

The AMOC starts under the sea ice throughout the entire Arctic Ocean basin. Somehow climate scientists have convinced themselves that the deep water formation of the AMOC is next to Greenland. There is no way to correct them because they don’t actually care what the facts are, just what gets them published in the climate theology field.

The sea surface temperatures in the Norwegian Sea range from +2.0C to +10.0C.

The Arctic Bottom Water is -0.5C to -1.0C and is 3000 metres deeper. it has nothing to do with the Nowegian Sea.

The Arctic Bottom Water overflows the canyons and chokepoints out of the Arctic Ocean basin, particularly the Fram Strait canyon, the Denmark Strait and the Greenland-Scotland Ridge.

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Sea ice optional [image credit: BBC]

Sea ice optional [image credit: BBC]


More global warming sales talk masquerading as science gets exposed.

Date: 11/01/16 Michael Bastasch, Daily Caller News Foundation
Former Vice President Al Gore shocked Americans in “An Inconvenient Truth” when he said polar bears were drowning because global warming was melting Arctic sea ice, but now a new study shows that polar bears did just fine even when there was no ice covering the Arctic.

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H/T to Andrew for alerting me to this new paper published in Quaternary Science Reviews.

From the paper:

14C-greenland-sea-ice

Fig. 5. Reconstructed sea-ice concentrations from core GA306-GC4 compared to the 14C production rate corrected for the fossil fuel (Suess) effect for the period from 1850 to 1950 AD (Muscheler et al., 2007). (a) The direct comparison of sea-ice concentration (blue) and 14C production rate (red), as well as with DTSI (orange; difference of total solar irradiance from 1365.57 W/m2 ) (Steinhilber et al., 2012)

To investigate the feedback processes linking solar activity and sea-ice cover, we used the coupled climate model COSMOS, which indicates that a decrease in solar radiation results in increased sea-ice cover (Fig. 7a) and decreased sea-surface temperature (Fig. 7b). A strong negative correlation between sea-ice variability and solar forcing is observed along the eastern and southwestern coast of Greenland and in the Arctic Ocean, indicating that in this model solar variability is critical for simulating changes in local sea-ice production. A small change in incoming shortwave radiation, and associated ice-albedo effects, resulted in a large response of local ice formation, according to ‘bottom-up’ (solar heating of the sea surface) mechanisms (Gray et al., 2010; Hunke et al., 2010).

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Ice House of Mirrors

Posted: October 5, 2015 by oldbrew in humour, sea ice
Tags:
image credit: Pocket Perspectives

image credit: Pocket Perspectives

Ron Clutz at Science Matters offers an unusual perspective on Arctic sea ice data.

In the fable of Snow White, the evil step-mother asked her hand mirror: “Who is the fairest in the land?” The mirror on the wall always flattered her, but this mirror did not. As we all know, the hand mirror told the truth, the queen was angry and people had to suffer.We expect mirrors to tell the truth, to show us the objective reality. That is why it is amusing at the carnival sideshow to gaze into mirrors that make normal people look obese or like a beanpole, or otherwise distort one’s appearance.

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Sea ice waves

Posted: September 29, 2015 by tchannon in sea ice

Since Roger kind of raised the subject

DO01235 do? Not very good as a dataset, never mind, use data some rate. On automatic update system here anyway.

Over the past couple of years most of the daily sea ice data has been removed from public access leaving low grade stuff. How curious.

Image

Drawing straight lines is not good when the data is plainly natural, nature does not do straight. Any of you have examples?

My guess is as good as any and the above is what a tool on automatic spat out, less finer twiddles.

The ripple is ~22 years a la solar magnetic and surface temperature. Exactly what causes this is of course unknown just the same as other non-experimental systems.

Why the shape? Is it sane? Oh yes.

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Arctic ice melt [image credit: Jenny E. Ross]

Arctic ice melt [image credit: Jenny E. Ross]


A few Arctic sea ice myths get exploded in this BBC report:

The volume of Arctic sea ice increased by around a third after an unusually cool summer in 2013. Researchers say the growth continued in 2014 and more than compensated for losses recorded in the three previous years.

The scientists involved believe changes in summer temperatures have greater impacts on ice than thought. But they say 2013 was a one-off and that climate change will continue to shrink the ice in the decades ahead.

Talkshop comment: ‘they say’…based on what evidence?

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Plenty of Arctic sea ice for polar bears this year

Posted: July 9, 2015 by oldbrew in sea ice
Tags:

Arctic sea ice [image credit: BBC/Getty Images]

Arctic sea ice [image credit: BBC/Getty Images]


Polar Bear Science finds no problems with the Arctic polar bear environment this year:

There is still a lot of sea ice in Hudson Bay, Foxe Basin, Davis Strait and Baffin Bay this week – more than average for this date – with slightly less than average in the Beaufort Sea. Past behaviour of Western and Southern Hudson Bay polar bears suggests the mean date that bears come ashore for the summer this year will be later than average due to the plentiful ice available, regardless of when polar bear biologists decide that “breakup” has occurred.

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Antarctic sea ice sets new high In May

Posted: June 4, 2015 by oldbrew in Analysis, Dataset, sea ice
Tags: ,

Tabular iceberg in the Weddell Sea [credit: British Antarctic Survey]

Tabular iceberg in the Weddell Sea [credit: British Antarctic Survey]


These Antarctic headlines are becoming almost routine, but still worth noting in view of all the propaganda telling us the world is supposed to be warming.

This is a comparison of data for the month of May only, stretching back to 1979. In the files linked at the end of the reportingclimatescience.com report (see ‘Source’ in original), there are separate figures for ‘extent’ and ‘area’, with an explanation of the difference (see Arctic file).

The lowest May figures (since 1979) for both polar regions were recorded in 2006, but the Antarctic was 12% above the long-term May average this year.

Report: Antarctic Sea Ice Sets New High In May.

US Coastguard icebreaker [credit: NSIDC]

US Coastguard icebreaker [credit: NSIDC]


Once again reports of the imminent death of Arctic sea ice have been greatly exaggerated. As even the pro-alarmist BBC has conceded, ‘to understand Arctic sea ice requires measurement of both area and thickness’, and it turns out that sea ice volume is well above the lowest recorded level for the time of year.

BBC: Although Arctic sea ice set a record this year for its lowest ever winter extent – that was not the case for its volume, new data reveals.

Europe’s Cryosat spacecraft routinely monitors the thickness of floes in the far north.

The thinnest winter ice it has ever seen was in 2013. This February, in contrast, the Arctic floes were about 25cm (17%) thicker on average.

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But some optimists still think global warming is about to make a comeback.

sunshine hours

Antarctica set a daily record for day 91. The old record was from 2014 and was broken by only 12,000 sq km.

This would be the 21st Daily Record for 2015.

The “streak” just shows the place for each day so for example Jan 1 was 2nd highest, Jan 2 was a record etc :

2111111111111111111112233322222222222345555554555444444565435555555554434333332222222333331

Antarctic_Sea_Ice_Extent_Zoomed_2015_Day_91_1981-2010

Global_Sea_Ice_Extent_Zoomed_2015_Day_91_1981-2010  Arctic_Sea_Ice_Extent_Zoomed_2015_Day_91_1981-2010

DataSouth / North

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Going nowhere

Going nowhere


Trend or exception: after two consecutive winters with 90% freeze-overs of the North American Great Lakes, plus this assessment(see below), what are the chances of an ‘Arctic death spiral’ as trumpeted in certain quarters over recent years?

Christopher Booker reports in the Sunday Telegraph (h/t GWPF):
As Britain emerges from an unusually sunny and comparatively mild winter, spare a thought for the people of eastern Canada, still in the grip of their most terrifying winter for decades. Recent pictures online of “Photographic proof that Canada’s east coast is basically the ice planet Hoth” show hapless residents standing below ice cliffs and snow drifts 20ft high. This month the Globe and Mail of Toronto, which endured its coldest February on record, described 2015 for Canada’s Atlantic provinces as having been like living in a “prison of snow and ice”.

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Tackling Antarctic sea ice [image credit: BBC / BAS]

Tackling Antarctic sea ice [image credit: BBC / BAS]


There seems no end in sight to the long-term growth of seasonal Antarctic sea ice, reports RTCC (link below). This continues to ‘baffle scientists’, to quote the usual expression.

‘Conventional’ climate theories can’t account for this phenomenon except by stretching the existing logic to the limit and beyond.

Sea ice coverage in the Antarctic continues to increase, according to data released on Thursday by the US National Oceanic and Atmospheric Administration (NOAA).

The ocean’s sea ice levels were 44.6% higher than the 1981-2010 average, breaking a previous record set in 2008 by 220,000 square miles.

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BBC News – Arctic sea ice volume holds up in 2014

Posted: December 15, 2014 by oldbrew in climate, sea ice
On tour in the Arctic [credit: US Navy]

On tour in the Arctic
[credit: US Navy]

Now that the so-called ‘climate summit’ is out of the way, the BBC finds itself forced to admit that reports of the impending death of Arctic sea ice were greatly exaggerated. There’s even talk of ‘modest growth’ – shock horror!

Arctic sea ice may be more resilient than many observers recognise.

While global warming seems to have set the polar north on a path to floe-free summers, the latest data from Europe’s Cryosat mission suggests it may take a while yet to reach those conditions.

[Straw-clutching going on there?]

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Warm year brings more sea ice

Posted: November 13, 2014 by oldbrew in sea ice, Uncertainty

Ice melt [credit: BBC]

Ice melt [credit: BBC]


The US NOAA offers its ‘Global Summary Information – September 2014’ here.

Three quotes from their ‘state of the climate’ summary [bold added]:

‘The globally averaged temperature over land and ocean surfaces for September 2014 was the highest for September since record keeping began in 1880.’

‘Between the annual maximum extent that occurred in March and the minimum extent, the Arctic lost 3.82 million square miles of ice during the 2014 melt season, the ninth most on record but the least since 2006.’

‘The average September Antarctic sea ice extent was 7.73 million square miles, 480,000 square miles (6.60 percent) above the 1981–2010 average. This was the largest September average Antarctic sea ice extent on record and the largest average Antarctic sea ice extent for any month. This bested the previous September Antarctic sea ice extent record set last year by approximately 80,000 square miles. Much-above-average sea ice was observed in the western Pacific and Indian Ocean areas.’
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In the same year there’s said to be a record-equalling high for global average temperature, the least Arctic sea ice melt since 2006 and record Antarctic sea ice extent.

Interesting. What price the much-touted ice-free Arctic any time soon?

Tim Ball: An arctic tale

Posted: October 17, 2014 by tchannon in History, Incompetence, sea ice

Dr Tim Ball has written a wonderful piece using his knowledge of Arctic history, what really went on with the Franklin expedition. There are echos today.

Weather, Climate, Arctic Ice And The Franklin Expedition

Canadian Prime Minister Stephen Harper proudly announced discovery of one of Captain John Franklin’s ships, either the Erebus or Terror. Identification, of which ship will be relatively easy, based on the known dimensions of the vessels

The article concludes with

The fiasco was summarized when John Rae wrote his final report to the British Admiralty. He recommended that in future any Admiralty expedition should study the survival techniques of the native people. The Admiralty response said, the Royal Navy would never resort to the subterfuge of going native. No wonder the Erebus and Terror sank, with only one ship being discovered 170 years later, and everybody perishing. Government, using incompetent people to advance political agendas at the expense of ordinary people, many of them with remarkable skills and talents, is nothing new in the Arctic.

http://drtimball.com/2014/weather-climate-arctic-ice-and-the-franklin-expedition/

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Emperor penguins, Antarctica [image credit: USAF / Wikipedia]

Emperor penguins, Antarctica [image credit: USAF / Wikipedia]

We’ll highlight some points from the official reaction later but first the opening details from a press report. Note the eagerness to talk down the relevance of Antarctic sea ice.

‘Sea ice surrounding Antarctica reached a new record high extent this year, covering more of the southern oceans than it has since scientists began a long-term satellite record to map sea ice extent in the late 1970s. The upward trend in the Antarctic, however, is only about a third of the magnitude of the rapid loss of sea ice in the Arctic Ocean.’

‘The new Antarctic sea ice record reflects the diversity and complexity of Earth’s environments, said NASA researchers. Claire Parkinson, a senior scientist at NASA’s Goddard Space Flight Center, has referred to changes in sea ice coverage as a microcosm of global climate change.’

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