Tag: Antarctica

South Pole ice cap sets new record

11:26 am

The uncertainty of science: The Antarctic ice cap set a record for size this past week.

The sea ice coverage around Antarctica over the weekend marked a record high, with the ice surrounding the continent measuring at 2.07 million square kilometers, according to an environmentalist and author who says the ice there has actually been increasing since 1979 despite continued warnings of global warming.

The article notes how global warming climate scientists conveniently insist that the growing south pole ice cap and the extended cold temperatures there are irrelevant to their theirs. A real scientist, however, would dismiss no data, as to do so skews the results.

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Using computer models and data collected in the past decade, some climate scientists now believe that a major Antarctica ice sheet is in the process of collapsing.

10:20 am

Using computer models and data collected in the past decade, some climate scientists now believe that a major Antarctica ice sheet is in the process of collapsing.

One team combined data on the recent retreat of the 182,000-square-kilometer Thwaites Glacier with a model of the glacier’s dynamics to forecast its future. In a paper published online today in Science, they report that in as few as 2 centuries Thwaites Glacier’s outermost edge will recede past an underwater ridge now stalling its retreat. Their modeling suggests that the glacier will then cascade into rapid collapse. The second team, writing in Geophysical Research Letters (GRL), describes recent radar mapping of West Antarctica’s glaciers and confirms that the 600-meter-deep ridge is the final obstacle before the bedrock underlying the glacier dips into a deep basin.

Because inland basins connect Thwaites Glacier to other major glaciers in the region, both research teams say its collapse would flood West Antarctica with seawater, prompting a near-complete loss of ice in the area. “The next stable state for the West Antarctic Ice Sheet might be no ice sheet at all,” says the Science paper’s lead author, glaciologist Ian Joughin of the University of Washington (UW), Seattle.

This result really falls under the category of the uncertainty of science. Though the data suggests a glacier that is part of the much larger West Antarctica ice sheet is melting, the prediction that the ice sheet itself will collapse sometime in the next two centuries is solely based on computer models that have all too often turned turned out to be wrong.

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A new study outlines the problems British researchers had in their 2012 attempt to drill down into a buried Antarctic lake.

9:33 am

A new study outlines the problems British researchers had in their 2012 attempt to drill down into a buried Antarctic lake.

The project had been under development for ten years, and yet:

According to the paper, problems started when the boiler that was intended to melt large quantities of snow to provide hot water for the drill failed to work properly because of short-circuiting in its control panel. More severe problems followed. The two parallel drills — one to drill the main borehole to reach the lake, and one to create a reservoir cavity to recirculate drilling water — ran too slowly. Other failures, including of components designed to ensure vertical drilling, exacerbated the problems.

“The drilling was essentially undertaken blindly,” says Siegert. Probably because one or both holes were not drilled vertically, the cavity failed to link with the main borehole. Water also leaked into the cavity drill and froze the hose in the drill hole. Attempts to remove the hose failed, so it had to be cut. At that point, and with not enough fuel left to reach the lake, Siegert gave up.

Seems to me that these problems — some very basic engineering design errors — are a good example of some basic incompetence. If I was providing financial backing to this project I would probably demand that a lot of people be fired before I would give them anymore money.

The report also has this interesting detail which confirms the doubts about the Russian drilling effort:

In 2012, Russian scientists broke into Lake Vostok, by far the largest of Antarctica’s hidden lakes, using a kerosene-fuelled drill. But their samples are spoiled with drill fluid and the bacteria they contain are probably contaminant species.

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How global warming activists ended up getting stuck in the ice fields surrounding Antarctica.

8:45 pm

How global warming activists ended up getting stuck in the ice fields surrounding Antarctica.

The first error expedition leaders made was under-estimating the prevailing sea ice conditions at Mawson Station, their destination. The scientists seemed to be convinced that Antarctica was a warmer place today than it had been 100 years earlier, and thus perhaps they could expect less sea ice there. This in turn would allow them to charter a lighter, cheaper vessel.

And then there’s this:

Why the vessel got trapped in the first place may be because [project leader and professor Chris] Turney never bothered to look at sea ice charts, which showed near record high levels of sea ice surrounding Antarctica. Moreover, Turney even denied that the overall sea ice trend was expanding around the continent. Fox News writes, “Turney said it was ‘silly’ to suggest he and 73 others aboard the MV Akademic Shokalskiy were trapped in ice they’d sought to prove had melted. He remained adamant that sea ice is melting, even as the boat remained trapped in frozen seas.”

Did he expect to find less ice than Mawson did 100 years earlier? This appears to be what he expected, given his expedition’s planning. [emphasis mine]

In other words, this group and its so-called scientific leader are typical of the entire global warming climate community. Facts are irrelevant. The Earth is warming, the icecaps are disappearing, and to hell with any data that says otherwise.

Eventually, however, reality bites. Personally, I would much rather focus on reality first, so that I am prepared to deal with it when it jumps up at me.

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Global sea ice area is now at its second highest level ever recorded, and closing in on an all time record.

10:50 am

The uncertainty of science: Global sea ice area is now at its second highest level ever recorded and is closing in on an all time record.

The link is also amusing in that it includes some interesting predictions made by global warming scientists and politicians in recent years, all predicting that the Arctic Ocean would be ice free by 2013.

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The head of India’s research team at its Antarctica base has been recalled after he ordered the shut down of power at the station.

9:01 am

Welcome to the movies: The head of India’s research team at its Antarctica base has been recalled after he ordered the shut down of power at the station.

From October 7 to 12, ISRO’s satellite ground station at Antarctica, lost all transmission when its power supply was allegedly shut down by the team leader of the 32nd winter expedition to Bharati. The scientist, whose name was not revealed, has since been suspended and brought back to Goa. On October 14, NCAOR had also filed a police complaint against the scientist for the ‘wanton act of shutting down power’, said a statement released by the Ministry of Earth Sciences on Saturday.

This story had this tidbit:

It is believed the probe was ordered after the team leader allegedly ordered for the station’s power supply, which is obtained from diesel generators, to be cut off. A former chairman of ISRO, on the condition of anonymity, said: “If shortage of fuel was the issue, why would the ISRO station not take stock of fuel two months before it was to get exhausted and make arrangements for additional supply from South Africa? It is the most obvious thing to do. Unless there is some confusion or some issues, such a thing in Antarctica is unheard of. If power is switched off, people inside will freeze. So why was the power ordered to be cut off and why wait for diesel to get over?”

It also appears that three people are involved in this story, though details remain scant.

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The Antarctica icecap is now grown to be the largest it has been in 35 years.

2:51 pm

The uncertainty of science: The Antarctica icecap is now grown to be the largest it has been in 35 years.

Antarctic sea ice has grown to a record large extent for a second straight year, baffling scientists seeking to understand why this ice is expanding rather than shrinking in a warming world. On Saturday, the ice extent reached 19.51 million square kilometers, according to data posted on the National Snow and Ice Data Center Web site. That number bested record high levels set earlier this month and in 2012 (of 19.48 million square kilometers). Records date back to October 1978.

Uh, maybe the world isn’t warming as predicted?

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The last 800 years of ice cores from Antarctica shows that the icecap has apparently been increasing over the last century.

9:48 am

The uncertainty of science: Ice core data from the last 800 years from Antarctica suggest that the icecap has been growing over the last century.

The changes also appear to correlate with solar fluctuations, though there are so many uncertainties here that no single explanation can yet be accepted as the answer.

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A research plane has crashed in a remote area of Antarctica, stranding three.

11:12 am

A research plane has crashed in a remote area of Antarctica, stranding three.

Once the beacon had sounded, a U.S. LC-130 aircraft was sent to the crash site, but it was unable to establish radio contact with the Twin Otter, while a thick layer of low-lying clouds prevented those onboard from seeing the plane. Later, a DC-3 aircraft spent hours circling above the crash site, but it also came away empty-handed.

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