Articles Tagged "Ice Chart"
Tuesday, October 2nd 2012, 7:25 AM EDT
Much has been written about the record low extent of Arctic sea ice this season. In July it stood at 7.94 million sq km – 2.12 million km below the 1979 – 2000 average, and in September it reached a record low of 3.14 million sq km.
When satellite monitoring of the Arctic ice began in 1979 it was clear that the data had caught a decline already in progress. There is some evidence that the decline may have been taking place since the 1950s, which is before the time that anthropogenic influences came into effect.
In the past few years it is possible that this roughly linear decline may have increased, or have reached a point whereby the behavior of the Arctic ice sheet has changed. 2007 was a record low year for ice extent and it may be that the ice melt-freeze cycle has become noisier. Figure 1.
Friday, October 12th 2012, 11:21 AM EDT
A graph showing changes in sea in in the Antarctic from 1979 - 2012
Now there's more ice at South Pole than ever (So much for global warming thawing Antarctica!) by David Derbyshire - Daily Mail
Ice around the South Pole has expanded to cover a record area, scientists revealed yesterday – a month after saying that the North Pole had lost an unprecedented amount of its ice.
Researchers say – rather confusingly – that both occurrences are down to the ‘complex and surprising’ effects of global warming.
Click source for FULL report from David Derbyshire
Friday, October 5th 2012, 4:36 AM EDT
One of the major achievements of mankind, over many centuries, has been the development of logical thinking processes. Science now has a well-established process of thinking patterns by which scientists work.
Some pieces of evidence that appear in scientific investigation may seem to be confusing. This is why the rules of logic have to be followed to ensure that there are no false conclusions.
It really amazes me – and also does not surprise me – when, in climate change discussions, completely illogical conclusions take hold in the public mind. It is amazing that basic logic escapes the public or is twisted without anyone seeming to care. On the other hand, it does not surprise me because there are elements in society which want false conclusions to be fed to the public so that they will toe the line of the propagators.
Let me now ponder the issue of claims of melting glaciers and melting ice, in general, that is blamed on global warming.
Sunday, September 30th 2012, 3:52 PM EDT
There is more frozen ocean surrounding Antarctica than has ever been measured. That’s right, after all the shouting and hand waving about the new record low amount of sea ice in the Arctic this summer, Antarctic sea ice has ballooned to a new record high. Mother Nature does seem to have an interesting sense of humor when it comes to the freezing of sea water. Back in 2007 the amount of sea ice left over at the end of the summer in the Arctic at the top of the world was the lowest since the satellite measurements began in 1979.
At the same time the amount of sea ice surrounding Antarctica at the bottom of the world set a new record for the most sea ice. That record large amount of ice got almost no attention, all the talk was about how little ice was left in the Arctic at the end of the melt season. Advance five years later to 2012 and the same thing has happened again. We have record low ice extent in the Arctic and record large ice extent surrounding Antarctica. Who knew that Mother Nature has such a bemusing sense of humor!
Monday, October 1st 2012, 6:14 AM EDT
I decided to graph the AMO vs Arctic Sea Ice Extent vs Antarctic Sea Ice Extent. AMO data comes from NOAA, Sea Ice data comes from NSIDC.
The green is the AMO – Atlantic Multidecadal Oscillation. The red is Antarctic Sea Ice Extent. The blue is the Arctic Sea Ice Extent.
The dashed lines are the liner trends for each.
There are three amazing things:
1) The AMO trend is identical to the Antarctic trend even though the AMO is the sea surface trend of the North Atlantic Ocean! The trend are so close it is hard to see the AMO and Antarctic trends as separate items.
Thursday, September 20th 2012, 6:31 AM EDT
to see Animation by D. Kelly O'Day.
There has been a wave of triumphal announcements by climate change proponents recently, almost giddy over the summer shrinkage of the Arctic ice sheet. “Lowest level ever!” they proclaim, thought that is not quite true. Nonetheless, The Arctic pack ice has been receding over the last decade or so, but that is only natural. You see, there is a well known, if poorly understood, linkage between the ice at the north pole and the ice in and around Antarctica—and the ice around Antarctica is doing quite well. Satellite radar altimetry measurements indicate that the East Antarctic ice sheet interior increased in mass by 45±7 billion metric tons per year from 1992 to 2003. This trend continues today, reinforcing recent scientific investigations into this millennial scale oscillation between the poles. According to studies, this is how things have been for hundreds of thousands of years.
By now everyone who pays attention to climate matters has heard the news, the Nations Ice and Snow Data Center (NSIDC) has proclaimed a new record low for the Arctic ice sheet. The dweebs over at RealClimate are beside themselves with joy, smugly celebrating the impending ecological doom of all mankind. “Take to the lifeboats, the seas are a risin'.” Ok, maybe they are not quite that ecstatic, but this “record” is being used as a see-I-told-you-so to prop up anthropogenic global warming. Here is what the NSIDC had to say in their press release:
Arctic sea ice cover melted to its lowest extent in the satellite record yesterday, breaking the previous record low observed in 2007. Sea ice extent fell to 4.10 million square kilometers (1.58 million square miles) on August 26, 2012. This was 70,000 square kilometers (27,000 square miles) below the September 18, 2007 daily extent of 4.17 million square kilometers (1.61 million square miles).
Click source to read FULL report from Doug. L Hoffman
Friday, September 21st 2012, 3:38 AM EDT
Environment: For many across the U.S., it was a cruel, cruel summer. Al Gore said listening to the news was like "taking a nature hike through the book of Revelation." But how does he explain record sea ice in the Antarctic?
The summer of 2012 was a scorcher for many across the country. Naturally the global warming alarmists couldn't contain themselves.
James Hansen, whose politicized ravings are primarily responsible for the climate change scare, wrote in August that the summer was "the kind of future that climate change would bring to us and our planet."
Gore lamented the "dirty weather" created by "dirty energy" and declared on his web site that "a lot of people are saying out loud, 'I'm too hot!'"
In case anyone wondered just how people felt.
Saturday, October 13th 2012, 3:22 PM EDT
Click source for bigger image
Saturday, August 25th 2012, 9:50 AM EDT
Move along, nothing to see here
Press release flatly contradicts what boffins said
New ice core data from the Antarctic Peninsula has revealed that temperatures in the region during the past 10,000 years have often been higher than they are today, and that warming of the sort seen there recently has also occurred in the pre-industrial past.
The new data are derived from a massive new 364m-long core extracted from the ice sheet lying on top of James Ross Island towards the northern tip of the Antarctic Peninsula in the freezing Weddell Sea. The core was extracted by scientists from the British Antarctic Survey, assisted by French boffins, who reached the area courtesy of the Royal Navy ice-patrol ship HMS Endurance and her helicopters.
The mighty core has allowed analysing boffins to reconstruct local temperatures and snowfall way back to the end of the last ice age. The info is of particular interest as the Peninsula has warmed up rather quickly over the last 50 years or so, and is bucking the overall Antarctic trend which has seen vast new expanses of sea ice appear around the coasts of the austral continent. Thus it is that the Ross Island ice core results have made it into this week's edition of agenda-setting boffinry mag Nature.
So what have we got?
Saturday, September 1st 2012, 12:07 PM EDT
On Monday, August the 27th 2012 the headline read “Arctic Ice Melts to record Low: US Researchers.” The New York Times rolled out “Satellites show sea ice in Arctic is at a record low.” These headlines claim this is yet another sign that man made global warming is real and is a threat to our future. Most people that read these headlines will not understand what is really behind them. Briefly, the amount of ice in the Arctic Ocean varies significantly through the year. Due to the tilt of the earth’s axis of 23.5 degrees from the vertical, the Arctic Ocean freezes solid in the winter when sun is below the horizon for months and the temperature plunges to 40 to 60 degrees below zero and colder. In the Arctic summer the sun is above the horizon 24 hours a day.
The temperature climbs into the 30s and the ice melts until the fall when the sun gets lower and lower in the sky and eventually disappears into the dark of winter again. Given this large variation in Arctic sunlight and temperature through the year, there has always been a cyclic change in the amount of ice in the Arctic. The claim is that because there has been less ice in the Arctic Ocean at the end of the summer in recent years, this is proof of man made global warming.