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Arctic snow not darkening due to soot, dust
Science Daily ^ | October 30, 2015 | Dartmouth College

Posted on 10/30/2015 8:05:30 PM PDT by sparklite2

For millennia, Greenland's ice sheet reflected sunlight back into space, but satellite measurements in recent years suggest the bright surface is darkening, causing solar heat to be absorbed and surface melting to accelerate. Some studies suggest this "dirty ice" or "dark snow" is caused by fallout from fossil fuel pollution and forest fires.

But a new Dartmouth-led study shows that degrading satellite sensors, not soot or dust, are responsible for the apparent decline in reflectivity of inland ice across northern Greenland. The study's results suggest the ice sheet hasn't lost as much reflectivity as previously thought, and that black carbon and dust concentrations haven't increased significantly and are thus not responsible for darkening on the upper ice sheet.

The findings, which contradict anecdotal observations and earlier scientific studies, appear in the journal Geophysical Research Letters.

(Excerpt) Read more at sciencedaily.com ...


TOPICS: Science
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1 posted on 10/30/2015 8:05:30 PM PDT by sparklite2
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To: sparklite2

Climate Scientologists everywhere sob into their pillows.


2 posted on 10/30/2015 8:17:07 PM PDT by Noumenon (Resistance. Restoration. Retribution.)
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To: sparklite2

.. degrading satellite sensors?

How could this be???


3 posted on 10/30/2015 8:19:52 PM PDT by smokingfrog ( sleep with one eye open (<o> ---)
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To: sparklite2
I blame polar bear poop. They'll have to be hunted to save the Earth.
4 posted on 10/30/2015 8:20:21 PM PDT by KarlInOhio (CNBC = Clowns Neutered By Cruz)
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To: sparklite2

Boogy-man Carbon exonorated again.


5 posted on 10/30/2015 8:20:50 PM PDT by beethovenfan (Islam is a cancer on civilization.)
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To: Noumenon
Climate Scientologists everywhere sob into their pillows.

And then vow to redouble their efforts to falsify and fabricate data to "prove" their false theory

6 posted on 10/30/2015 8:22:12 PM PDT by from occupied ga (Your government is your most dangerous enemy)
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To: sparklite2

It helps when you keep your lenses cleaned.


7 posted on 10/30/2015 8:22:22 PM PDT by Slyfox (Will no one rid us of this meddlesome president?)
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To: Slyfox

That’s why I wear diopters, man.
-———— Hubble


8 posted on 10/30/2015 8:23:39 PM PDT by sparklite2 (All will become clear when it is too late to matter.)
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To: sparklite2

Attention! Attention! The end of the world has been delayed...


9 posted on 10/30/2015 8:24:28 PM PDT by RickGee
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To: smokingfrog

“.. degrading satellite sensors?

How could this be???”

The sensors have been up there “For millennia” so they’re very old.


10 posted on 10/30/2015 8:28:49 PM PDT by Quicksilver (I'll vote for anyone that can truly Make America Great Again!)
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To: sparklite2

Huh! So human activity (or the lack thereof) really is causing global warming. Howzzaboutdat?


11 posted on 10/30/2015 8:37:09 PM PDT by davius (You can roll manure in powdered sugar but that don't make it a jelly doughnut.)
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To: Quicksilver

If those sensors were more sensitive to the feelings of others, they would correct their degrading behavior.


12 posted on 10/30/2015 8:38:59 PM PDT by smokingfrog ( sleep with one eye open (<o> ---)
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To: Noumenon

No kidding.


13 posted on 10/30/2015 8:40:43 PM PDT by Inyo-Mono
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To: sparklite2
"Greenland has gained almost 200 billion tons of snow and ice over the past two months, which is more than 50% above normal. The surface of the ice gained more than 200 billion tons during the previous 12 months.”

https://stevengoddard.wordpress.com/2015/10/29/greenland-blowing-away-all-records-for-ice-gain/

14 posted on 10/30/2015 8:42:27 PM PDT by jpsb (Believe nothing until it has been officially denied, Otto von Bismarck)
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To: sparklite2

Duh!


15 posted on 10/30/2015 8:43:12 PM PDT by TigersEye (This is the age of the death of reason and rule of law. Prepare!)
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To: sparklite2

this will be an ignored article but this really has to be worse(or more important) than some think.
If these sensors degrade, then other sensors degrade.

Do climate data models account for degraded sensors ? If so how ? when does degradation start ? how much ? etc...


16 posted on 10/30/2015 8:45:42 PM PDT by stylin19a (obama = Fredo Smart)
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To: sparklite2

if we are to save the planet we have to get better sensors for are satalights. its the sensors causing global warming.


17 posted on 10/30/2015 8:46:20 PM PDT by PCPOET7
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To: from occupied ga

Yes, that’s exactly what they’ll do after abasing themselves before images of Saints Lysenko, Hubbard and Barnum.


18 posted on 10/30/2015 8:46:38 PM PDT by Noumenon (Resistance. Restoration. Retribution.)
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To: smokingfrog

“If those sensors were more sensitive to the feelings of others, they would correct their degrading behavior.”

Yes, given their apparent age, they should get cataract surgery.


19 posted on 10/30/2015 8:59:53 PM PDT by Quicksilver (I'll vote for anyone that can truly Make America Great Again!)
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To: sparklite2

They’ll just find another way to spin this so we’re all still doomed.


20 posted on 10/30/2015 9:12:53 PM PDT by Bullish (Face it, insanity is just not presidential.)
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