NASA | Greenland's Ice Layers Mapped in 3D

www.nasa.gov/content/goddard/n...
Peering into the thousands of frozen layers inside Greenland’s ice sheet is like looking back in time. Each layer provides a record of not only snowfall and melting events, but what the Earth’s climate was like at the dawn of civilization, or during the last ice age, or during an ancient period of warmth similar to the one we are experiencing today. Using radar data from NASA’s Operation IceBridge, scientists have built the first-ever comprehensive map of the layers deep inside the ice sheet.
This video is public domain and can be downloaded at: svs.gsfc.nasa.gov/goto?4249
Like our videos? Subscribe to NASA's Goddard Shorts HD podcast:
svs.gsfc.nasa.gov/vis/iTunes/f...
Or find NASA Goddard Space Flight Center on facebook:
/ nasa.gsfc
Or find us on Twitter:
/ nasagoddard

[@IstasPumaNevada]

This is absolutely fascinating.

[@gerritduplessis7122]

THANK YOU!!! BEYOND INCREDIBLE!!! THANK YOU, BLESSINGS!!

[@peachtrees27]

Wow! (re: visuals)

[@BBBJOT]

so cool. best channel on youtube.

[@kennethacrawford1731]

Interesting ! ! Hyawatha Glacier is visable at the top of these older scans. The impact crater is there also. Very interesting ! ! ken 11 April 2019

[@user-vy6ox7se8e]

fantastic!!

[@olivierhacking]

Fantastic 3D animations! Was this done with ArcMap/ ArcGIS or more sophisticated software? And how does the used radar differ from LiDar in terms of wavelength?

[@ForrestTaylor]

Good question. LIDAR is near the optical spectrum. I believe ice-penetrating waves would be much, much longer....like 10m to 100m waves perhaps.

[@MARSTVCHANNEL]

HAARP technology

[@KillerinstinctArcade]

verry nice!

[@CarlosGarayG]

awesome.

[@alanblanes2876]

Thanks so much for producing this. Even a cursory look shows things that we need to know in order to treat the current climate destabilization with real seriousness. The fact that much of the Ice Sheet is about 94,000 years old and the Eemian layer is the size it is, shows how there have been cycles of almost total melting in recent epochs. This is reason for the human species to have to consider the political choice of: "do we prepare to abandon our coastlines, or do we keep the planet cool enough to stop this cyclical phenomenon?"

[@vitaquasus1120]

Seems Greenland has had record snowfall and accuminlation over the last 3 or 4 years, maybe we have started a 'new' ice age?

[@PoochieCollins]

No? I just researched to find article title, "Climate change: For 25th year in a row, Greenland ice sheet shrinks."

[@NiketMJoshi]

This is awesome research by NASA. East or West, NASA is the best. I can understand how they would have done the measurements of the ice-sheets.

[@gervasiojorgeanela106]

Assista os melhores vídeos reportando grandes missões da NASA, resultado de pesquisas em Astrofísica.

[@rayaraya3808]

The oldest ice is more than 115,000 years. One billion years ago is more than 115,000 years. So, how old is really the oldest ice? Was its just a wordings error, sample it is supposed to be around 115,000 years ago?

[@rayaraya3808]

The earth poles had shifted many times. The evidence is the zebra stripes at the bottom of the ocean or the rock magnetic stripes. The poles shift happen every 200,000~300,000 years. Greenland no ice covering last earth poles shift?

[@philipirvine9515]

I don't know what causes ice ages or warming periods,and i don't think anybody does.Thats why there is so much debate.Go to NEW SCIENTISTS HISTORY OF ICE ON EARTH. for good information.

[@ANDconcentracionsbyJCCortesao]

Conservar el Planeta es aceptar la Vida y su evolución.....!

[@iammiahblaze]

How bout that impact crater?

[@MARSTVCHANNEL]

Charles Nelson:I wonder if Greenland will shrink back as far as it did in the 8th/9th/10th centuries? Apparently this year was a good year (if you like ice) , estimates are that the ice cap put on over 250 million tonnes! Eeeeeeeeek!

[@NASAGoddard]

+MARS TV CHANNEL No, it didn't. Nobody is estimating that the Greenland Ice Cap gained mass.

[@MARSTVCHANNEL]

Pretty irrelevant nonetheless guys, since the Greenland icecap is very much more massive as it was during the medieval warmth period, and Antarctica has gained massively.

[@pkrangersf3072]

You are an idiot.

[@freekjohannesgeeris1384]

Ehr, knowing the facts that have been available since 2007 - even broadcasted by the MSM - ismfar from being idiotic. Educate yourself, you're lagging a decade. Search for "The Great Global Warming Swindle" a documentary from 2007, and shown on the British Channel 4 - all you need to know from the world's foremost climatologists.

[@shadowdance4666]

They have discovered huge liquid water lakes beneath the ice. I believe that more than 50% of Greenland will be free of ice for some of the year within our life time

[@KarstRats]

All the radar is what’s actually melting the ice 🤷🏼‍♂️

[@abdulnorthamericanvlogs8017]

In Greenland ice age is forever

[@mafakka2]

how deep to the actually ground?

[@mafakka2]

3 klicks thick

[@Vicvines]

LOL they just set up an office and workshop down in the ice

[@777Macau]

Just like they did a nuclear plant and abandoned it

[@piehamcake1]

what if a asteroid hit greenland? that would be cool

[@montewright111]

sean magnuson It did. Look up Hiawatha

[@jacobvanveit3437]

You are a sage Sem LLC! Not only did an asteroid hit Greenland it also Cooled the earth! Both of your points very valid!

[@kickapowwww]

How it will respond to changing climate? My money is on it melting.

[@humbertopazmino8635]

Estoy preocupado con él calentamiento global la tierra 🌍 está calentado mucho y eso no es normal estoy agradecido con la nasa con sus sientificos y todo su personal calificado. Qué trabajan las 24 horas del día para él bien dé la unanimidad.

[@fofal]

Who was the troll who called it Greenland?

[@spruill7716]

Eric the Red

[@AHHHHHHHHHHHHl]

same guy who called the green one "Iceland"

[@eabea]

The same troll who named Iceland :D gotta love the Danes.

[@MARSTVCHANNEL]

In other words, you don't yet have a clue, but in the meantime have been shouting AGW is happening!

[@Jasper-iu3pv]

Well it is... I mean, we have direct temperature readings over the past decades. You can't get any more straight forward than that. Nasa and meteological station data shows global average temperature is rising.

[@MARSTVCHANNEL]

See? You have no clue whatsoever - look up "Global Warming pause", and you'll discover there has been NO warming, according to all including the IPCC's own data - over the last 18 years.

[@MARSTVCHANNEL]

www.climatedepot.com/2015/11/04/no-global-warming-at-all-for-18-years-9-months-a-new-record-the-pause-lengthens-again-just-in-time-for-un-summit-in-paris/

[@MARSTVCHANNEL]

Temperature readings are inherently unreliable because the meters are far and few in many parts of the world, and poorly maintained, and often near where people live, and where traffic goes, so there's one reason for the warming, And if you would just do your homework and study the NASA Goddard findings etc.in the first place, instead of following the mainstream media narrative,, you'd know about the GW hiatus. Furthermore, you should know about Climate Gate 1, 2 and 3. It's a complete fraud, that is kept alive since ot's a billion dollar industry, and many of those "scientists" would sell there granny to keep receiving their generous paychecks.

[@RaulBetancur]

Knowledge is power !! that s why USA is ahead. Thanks for this information NASA. !!

[@Redsauce101]

Now if only your politicians actually used it... :/

[@SueMead]

Imagine how much further humanity would've advanced if the republican morons didn't screw with NASA's funding. Those people have no vision. Which is why the USA has a bloody great white elephant that would've put them more than a decade ahead of CERN if they hadn't pulled the funding for it. Now, it's just a partly constructed tunnel and a few buildings. I know this link is just a wikipedia one but there's plenty to go on with at the bottom of the page for those that are interested. Let's hope this never happens to Nasa.

[@neilmcmahon]

Ahead of what exactly ? Ahead of the Obesity curve ?

[@SueMead]

Neil McMahon I just said, +Ahead of Cern+. But I see your point. Have you tried Jenny Craig?

[@neilmcmahon]

Sue Mead Jenny Craig ?

[@omega4chimp]

Melt all of Greenland ice.

[@patrickadams6307]

how do these people get money to buy equipment and feed their children? i mean i love what they do in all, but who is funding them?

[@Jasper-iu3pv]

It's NASA research, can you not see by the logo and channel name? :P

[@montewright111]

!!!!!!

[@northwestalternativemedia2125]

" emian similar to today" ahem, melt water pulse A, was NOTHING like today bucko

[@MrSchmolko]

then people must have lived there 100k years ago, to name it green-land instead of iceland.

[@scarletrose4031]

you melt thee ice by shootin lazer.

[@ninja2kernow]

How much did all thoughs plane flights over Greenland contribute to global warming.more pollution than I will create in a lifetime probably.

[@IstasPumaNevada]

The difference being this is a small group of people doing research that could save our species quite a bit of hardship. There aren't millions of ice-scanning flights a day.

[@ninja2kernow]

IstasPumaNevada true ,but every flight and car journey counts,

[@IstasPumaNevada]

ninja2kernow Of course, but it's not really fair to compare a single person's activities (that include leisure activities) with actions undertaken as a group effort to further the species.

[@ninja2kernow]

further the species ? .

[@IstasPumaNevada]

ninja2kernow Yeah. Studying Greenland's ice layers will help us understand climate patterns in earth's past, which is instrumental in pointing out just how drastic what we're doing to the atmosphere is. At any rate, knowledge gained with exploration like this tends to benefit all humans, not just the ones performing it.

[@cupjay]

sooo "cool" and scary. greenland is *always* scary.

[@wanderingquestions7501]

Our tax dollars at work; rightly so.

[@davidbrogan606]

The Eemian ice is difficult to interpret? I think that is code for, "What we found out goes against some of our current atheist beliefs so give us time to cook the data into something we already believe in."

[@Jasper-iu3pv]

Hahaha "atheist beliefs" ... I'm done with the Internet. People on here are way too stupid.

[@davidbrogan606]

+Jasper Indeed. Since you know everything, create your own internet and keep us informed with your vast knowledge. The world according to Jasper.

[@20x20Ghost]

arctic.atmos.uiuc.edu/cryosphere/ here is the proof of how large the polar icecaps are so dont try to sell a bunch of BS

[@universalchiro]

This video makes several repeated errors. The layers of ice are not years like rings on a tree, but are merely changes in temperature when precipitation was deposited. Proof of this is World War II squadron was buried too deep for the layers to be years. The video is using an archaic and erroneous dating method called the uniformitarian theory, which states the rate of things today is the rate they have always been. Therefore, the slow accumulation of ice today exemplifies that the layers are years. This is rubbish. There are volcanic sediment that spans through many several layers, like 10 to 20 layers. Which proves that the layers of ice are not deposited in years. This video employs fictional science to artificially prop up an old earth notion, just so that there is enough time for evolution. It is all a lie. Time to study the science that debunks an old earth and evolution. Stop believing the opinions of evolutionary scientists, and start learning science. They are not synonyms.

[@gmprice]

🤦🏻‍♂️

[@PoochieCollins]

There is a mountain of other scientific and historical evidence suggesting that Young Earth Creationism didn't happen, if that's what you're pushing.