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New NASA study shows Antarctic not losing ice
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Author:  HeritageFarm [ Wed Nov 04, 2015 10:33 am ]
Post subject:  New NASA study shows Antarctic not losing ice

In fact, it may be gaining ice, according to a new study directing contradicting what has been said for quite a while on ice melt contributing to sea level rise.

http://www.nasa.gov/feature/goddard/nas ... han-losses

Quote:
The extra snowfall that began 10,000 years ago has been slowly accumulating on the ice sheet and compacting into solid ice over millennia, thickening the ice in East Antarctica and the interior of West Antarctica by an average of 0.7 inches (1.7 centimeters) per year. This small thickening, sustained over thousands of years and spread over the vast expanse of these sectors of Antarctica, corresponds to a very large gain of ice – enough to outweigh the losses from fast-flowing glaciers in other parts of the continent and reduce global sea level rise.

Emphasis added.

Question is, do this you think this study substantially calls into question other studies on ice distribution, and do you think melting from the caps may not be as large a problem as we think?

Quote:
...according to Zwally. “If the losses of the Antarctic Peninsula and parts of West Antarctica continue to increase at the same rate they’ve been increasing for the last two decades, the losses will catch up with the long-term gain in East Antarctica in 20 or 30 years -- I don’t think there will be enough snowfall increase to offset these losses.”
Emphasis added

This statement shows that maybe we should be worried, except it's phrased almost as cautious dissent to the results, with little information to back up the claim.

Author:  Milton Banana [ Sat Nov 07, 2015 4:38 pm ]
Post subject:  Re: New NASA study shows Antarctic not losing ice

Adding insult to injury.

http://realclimatescience.com/2015/11/r ... continues/

Quote:
Arctic sea ice continues its record growth this autumn, having gained four million km² since September 1 after the shortest melt season on record.


Quote:
Land ice has also grown at a record rate since September 1, with Greenland gaining about three billion tons of ice a day since September 1.

Author:  Johhny Electriglide [ Sun Nov 08, 2015 3:09 pm ]
Post subject:  Re: New NASA study shows Antarctic not losing ice

Is Antarctica Gaining or Losing Ice? Hint: Losing.
http://www.slate.com/blogs/bad_astronom ... mob_tw_top

"A new study just published in the Journal of Glaciology is causing some buzz in climate circles, because it appears to claim that Antarctica—long thought to be losing ice at extremely alarming rates—is actually gaining ice.

However, note the word appears. The reality is more complicated, and in the end the important aspect of this is that the study only talks about part of Antarctica, and only used data up to 2008. Both of these points are critical."
"There’s more. They looked at data going from 1992–2008. Starting right around that time, mass loss due to melting ice in Antarctica (mostly in the west) has accelerated. It’s actually been speeding up for some time, but in recent years it’s really kicked in. Every year, about 6 billion more tons of ice are lost than the year before. In the past two decades, the loss rate has doubled.

This is enough to easily outpace the mass gained by snowfall over East Antarctica. Using data taken by the Grace satellites (which measure how mass underneath them changes over time), we know that overall, Antarctica is currently losing more than 130 billion tons of ice per year, and again, that number is increasing every year. Since 2002 it’s lost about 2 trillion tons of ice.

Mind you, this isn’t including Greenland, which is losing ice at an even more staggering 280 billion tons per year, and has lost well over three trillion tons over that same time period.

So no matter how you slice it, Antarctica is losing ice, and losing it fast."

AGW is causing higher atmospheric moisture, which itself is a marginal positive feedback. The open ocean warming of the Arctic from AGW is rapidly leading to Arctic methane clathrate self-release, in a range from 2020-5. That is when real, seeable and feelable exponential AGW starts. The southern hemisphere lags by a number of years, and the oceans a little longer.

Author:  HeritageFarm [ Sun Nov 08, 2015 11:25 pm ]
Post subject:  Re: New NASA study shows Antarctic not losing ice

Thus we're still on course for a lot of warming. Studies such as what I posted can be expected - it shows the science is unbiased. If studies that seemed to run countercurrent didn't crop up now and again, it would seem suspicious. Of course, to the skeptics, we're screwed if we do or don't...

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