Fwd: WHAT? Arctic Sea Ice Mass has Grown Almost 40% since 2012

[Jon Woodlands]

​Hey crew,

For those worried about a deepening climate crisis caused by the humans emissions of carbon dioxide (human emissions of C02 are 1/80,000th as a proportion of the total atmosphere), here is some good news. The ice is returning. Have a read of these good news stories:

best regards,

Jon  🌅

PS I chatted with a friend of mine in Maleny yesterday, George, and he told me of discussions he's been having with a Dutch pal lately. His friend in Europe says the ice expansion is extraordinary and Greenland for example is talking about a cirisis. Have you heard about this stuff in the Australian media??

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Don't Look Now, but Arctic Sea Ice Mass has Grown almost 40% since 2012

Sunday, October 01, 2017 by: Tracey Watson📉

https://www.naturalnews.com/2017-10-01-arctic-sea-ice-mass-has-grown-almost-40-since-2012.html

One of the most popular pieces of "evidence" that climate alarmists just love to bring up to prove the global warming narrative is the "all the ice is melting in the Arctic and the polar bears are dying" line. We've all seen the documentaries where a polar bear is desperately clinging to a tiny piece of ice and you just know he's going to die soon. But is any of it really true? What does the latest science really say about the ice in the Arctic circle?

Earlier this month, Climate Depot reported that the latest figures from the National Snow and Ice Data Center, located at the University of Colorado, show that sea ice extent has increased by 40 percent since 2012.  The Danish Polar Portal, which monitors ice and climate in the Arctic, reported on the 12th of September this year:

There has been quite some discussion about Greenland in the climate blogosphere this year. Heavy snow and rain in winter with a relatively short and intermittent summer melt season have left the Greenland ice sheet with more ice than has been usual over the last twenty years - in fact we have to go back to the 1980s and 90s to see a year similar to this one in terms of snow fall and ice melt, though perhaps not for iceberg calving. Š

This has been the pattern in the Arctic over the last few years. Back in 2015, BBC News reported that Arctic ice had grown by a staggering 30 percent after what they called an "unusually cool summer" - 'unusual' indeed, if the global warming narrative is to be believed. That trajectory continued into 2014, and the increases in ice for those two years exceeded all recorded losses in the preceding three years. That 30 percent constituted a massive amount of physical land area - the Daily Mail reported at the time that a cooler Arctic summer had left over 530,000 additional square miles of ice than the previous year.

Astoundingly, the mainstream media, in spite of having this information at their fingertips, continues to spout the same old global warming story.   In the very same BBC article cited earlier, for example, the writer immediately insisted that "2013 was a one-off" and went on to stress that the Arctic region had warmed more than most other places on Earth over the past three decades.

(CLIP.....)

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BBC: Arctic Ice 'Grew by a Third' after Cool Summer in 2013

By Matt McGrath

Environment correspondent, BBC News

http://www.bbc.com/news/science-environment-33594654

(Ecxerpt)    This polar monitoring spacecraft has a sophisticated radar system that allows scientists to accurately estimate the volume.  The researchers used 88 million measurements of sea ice thickness from Cryosat and found that between 2010 and 2012, the volume of sea ice went down by 14%.  They published their initial findings at the end of 2013 - but have now refined and updated them to include data from 2014 as well.

Relative to the average of the period between 2010 and 2012, the scientists found that there was a 33% increase in sea ice volume in 2013, while in 2014 there was still a quarter more sea ice than there was between 2010 and 2012.

"We looked at various climate forcing factors, we looked at the snow loading, we looked at wind convergence and the melt season length of the previous summer," lead author Rachel Tilling, from University College London, told BBC News.      "We found that the the highest correlation by far was with the melt season length - and over the summer of 2013, it was the coolest of the five years we have seen, and we believe that's why there was more multi-year ice left at the end of summer."      (CLIP....)

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End of the SMB Season Summary 2017

12 Sept 2017

http://polarportal.dk/en/nyheder/arkiv/nyheder/end-of-the-smb-season-summary-2017/

As the Surface Mass Budget (SMB) year ends, it's time for our now traditional look-back at the season since the 1st September 2016. There has been quite some discussion about Greenland in the climate blogosphere this year. Heavy snow and rain in winter with a relatively short and intermittent summer melt season have left the Greenland ice sheet with more ice than has been usual over the last twenty years - in fact we have to go back to the 1980s and 90s to see a year similar to this one in terms of snow fall and ice melt, though perhaps not for iceberg calving.

At the end of the SMB year that started on the 1st September 2016 and went through to the 31st August 2017, and not including the loss of icebergs, about 544 Gt more snow fell on the surface of the ice sheet than melted and ran into the ocean, compared to an average for 1981 to 2010 of about 368 Gt at the same point in the year. Note that this figure and the surface mass budget in general do not account for calving losses and the submarine melt of glaciers. Together calving and submarine melt have averaged around 500 Gt of ice loss per year over the last two decades. The end of year surface mass budget is therefore rather high for the 2000s and the 1990s, though it's not the highest in the record and 2016-2017 has therefore not been a record year for Greenland ice sheet mass balance. If we rank the annual surface mass balance since 1981 from low to high, the lowest on record was 2011-2012 (38 Gt) and this year is the 5th highest out of the 37 year record. The highest on record 1995-1996 had an end of year SMB of 619 Gt in our records.

So what has contributed to this high SMB this year? As we have written previously, Heavy rain and snow in October in especially eastern Greenland gave record totals of precipitation in the main east coast town of Tasiilaq as the remnants of former hurricane Nicole passed by and, much as with Harvey in Houston this year, got lodged over eastern Greenland for some days. However, after Nicole's extreme precipitation, the rest of the winter was actually pretty average in terms of the amount of snow that fell, and indeed parts of north western Greenland had less snow than usual, as can be seen in the accumulated SMB anomaly map below.

The other important process this year has been a relatively short and below average melt and runoff season. The summer melt season is extremely important for the annual SMB and the overall health of the ice sheet.  The date of onset of the melt season was the 3rd earliest on record but it was then followed by a cold and snowy period so that the onset of high rates of ice loss (more than 1Gt of ice lost per day, known as the ablation season) was actually average.  Going into summer with a large amount of accumulated fresh snow means that the albedo feedback took longer to kick in. Albedo, the reflectivity of the surface, is a very important control on the rate of melt of glacier ice.  Fresh snow is bright and reflective and slower to melt, but when the older and darker snow and glacier ice is exposed underneath, surface melt accelerates. The large amount of fresh snow in June substantially dampened this feedback.

(CLIP....)

[Garry Claridge]

Perhaps reading the whole of the referenced articles is of value. This is from the 2015 BBC article:

"It would suggest that sea ice is more resilient perhaps - if you get one year of cooler temperatures, we've almost wound the clock back a few years on this gradual decline that's been happening over decades," said Rachel Tilling. 

"The long-term trend of the ice volume is downwards and the long-term trend of the temperatures in the Arctic is upwards and this finding doesn't give us any reason to disbelieve that - as far as we can tell it's just one anomalous year."

After reading this I doubted the credibility of the remainder of your literature search.

Garry

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