Record warmth at the top of the Greenland Ice Sheet

By: Dr. Jeff Masters , 9:25 PM GMT on July 18, 2012

Share this Blog
50
+

The coldest place in Greenland, and often the entire Northern Hemisphere, is commonly the Summit Station. Located at the top of the Greenland Ice Sheet, 10,551 feet (3216 meters) above sea level, and 415 miles (670 km) north of the Arctic Circle, Summit rarely sees temperatures that rise above the freezing mark. In the 12-year span 2000 - 2011, Summit temperatures rose above freezing only four times, according to weather records researcher Maximiliano Herrera. But remarkably, over the past week, temperatures at Summit have eclipsed the freezing mark on five days, including four days in a row from July 11 - 14. There are actually three weather stations located at the location--Summit, Summit-US, and Summit AWS. The highest reliable temperature measured at any of the three stations is now the 3.6°C (38.5°F) measured on Monday, July 16, 2012 at Summit-US. A 4.4°C reading at Summit in May, 2010 is bogus, as can be seen by looking at the adjacent station. Similarly, a 3.3°C reading from June 2004 is also bad. Records at Summit began in 1987.


Video 1. A 20-ton tractor attempting to repair a bridge washed out by the raging Watson River on July 11, 2012 in Kangerlussauaq, Greenland gets washed downstream. The driver escaped unharmed. Image taken from an article, Warm air over the ice sheet provides great drama in Greenland, at the Danish Meteorological Institute's web site.

Record heat leads to major flooding in Greenland
The record heat has triggered significant melting of Greenland's Ice Sheet. According to the Arctic Sea Ice Blog, on July 11, glacier melt water from the Russell Glacier flooded the Watson River, smashing two bridges connecting the north and south of Kangerlussuaq (Sønder Strømfjord), a small settlement in southwestern Greenland. The flow rate of 3.5 million liters/sec was almost double the previous record flow rate. The latest forecast for Summit calls for cooler conditions over the coming week, with no more above-freezing temperatures at Summit.

Another huge iceberg calves off of Greenland's Petermann Glacier
A massive ice island two times the size of Manhattan and half as thick as the Empire State Building calved off of Greenland's Petermann Glacier on Monday, July 16, 2012. According to Andreas Muenchow, associate professor of physical ocean science and engineering at the University of Delaware's College of Earth, Ocean, and Environment in his Icy Seas blog, the break-off point has been visible for at least 8 years in satellite imagery, and has been propagating at 1 km/year towards Nares Strait. The same glacier calved an iceberg twice as big back on August 4, 2010--the largest iceberg observed in the Arctic since 1962. The freshwater stored in that ice island could have kept the Delaware or Hudson rivers flowing for more than two years, or kept all U.S. public tap water flowing for 120 days. “While the size is not as spectacular as it was in 2010, the fact that it follows so closely to the 2010 event brings the glacier’s terminus to a location where it has not been for at least 150 years,” Muenchow said in a university press release. “Northwest Greenland and northeast Canada are warming more than five times faster than the rest of the world, but the observed warming is not proof that the diminishing ice shelf is caused by this, because air temperatures have little effect on this glacier; ocean temperatures do, and our ocean temperature time series are only five to eight years long — too short to establish a robust warming signal.”


Figure 1. The calving of a massive 46 square-mile iceberg two times the size of Manhattan from Greenland's Petermann Glacier on July 14 - 18, 2012, as seen using MODIS satellite imagery. Image credit: NASA.


Figure 2. Look familiar? Two years ago, a 100 square-mile ice island broke off the Petermann Glacier. It was the largest iceberg in the Arctic since 1962. Image taken by NASA's Aqua satellite on August 21, 2010. Image credit: NASA. I've constructed a 7-frame satellite animation available here that shows the calving and break-up of the Petermann Glacier ice island. The animation begins on August 5, 2010, and ends on September 21, with images spaced about 8 days apart. The images were taken by NASA's Aqua and Terra satellites.

Related posts

Unprecedented May heat in Greenland; update on 2011 Greenland ice melt

Greenland update for 2010: record melting and a massive calving event

Jeff Masters

Reader Comments

Comments will take a few seconds to appear.

Post Your Comments

Please sign in to post comments.

or Join

Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.

Display: 0, 50, 100, 200 Sort: Newest First - Order Posted

Viewing: 1030 - 980

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30Blog Index

1030. ncstorm
updated HPC Precip map

Member Since: August 19, 2006 Posts: 13 Comments: 15285
Member Since: March 16, 2012 Posts: 127 Comments: 7942
Member Since: Posts: Comments:


Anybody seriously expecting this Twave currently in the E Car to impact FL? It's kinda far south...
Member Since: Posts: Comments:
1025. MrMixon
Quoting txjac:


Makes me real sit and wonder about what we are morally becoming as a nation. Seriously ...someone thought this was funny? And we sit around and wonder why jobs are going elsewhere (not that you can export BK jobs) but what has happened to integrity and pride??? Shaking my head in shame


While I agree with the sentiment, I suspect you would find many examples of actions lacking pride and integrity as far back in human history as you'd care to look (and in whatever culture you examine). There have ALWAYS been jerks, immature pranksters, bigots, etc. I think we just hear about them more these days because they make good news (i.e. - people are fascinated by bad behavior and stories like this spread like wildfire).

If you dig through today's news I bet you could find many stories of people doing beautiful, kind, amazing things... they just don't make headlines.

"Teach your children well..."


Member Since: Posts: Comments:
1024. Patrap
Quoting Chucktown:


Don't have time, 3 and a half minutes gives me just enough time for the forecast. Plus, viewers tune in for the forecast and the 7 day, they don't want to hear me drone on about climate change. If I wasn't a met, neither would I.


3.5. man dats not much time as you say.

Thanx.

Member Since: Posts: Comments:
Member Since: March 16, 2012 Posts: 127 Comments: 7942
1022. hydrus
Hubble's Deepest View Ever of the Universe Unveils Earliest Galaxies
Link
Member Since: Posts: Comments:
Member Since: March 16, 2012 Posts: 127 Comments: 7942
Quoting Patrap:



amen Brotha,

Amen

Hey chuck, do you expound your personal view on Climate Change to your TV viewers?

Curious is all.

: )



Don't have time, 3 and a half minutes gives me just enough time for the forecast. Plus, viewers tune in for the forecast and the 7 day, they don't want to hear me drone on about climate change. If I wasn't a met, neither would I.
Member Since: Posts: Comments:
Quoting HurricaneDean07:
Post #991.... Sisko? Who's Sisko?

Member Since: Posts: Comments:
1018. Patrap
Orleans Parish

Flash Flood Watch

Statement as of 3:37 PM CDT on July 19, 2012

... Flash Flood Watch in effect through Friday evening...

The National Weather Service in New Orleans has issued a

* Flash Flood Watch for portions of southeast Louisiana and
southern Mississippi... including the following areas... in
southeast Louisiana... northern Tangipahoa... Orleans...
southern Tangipahoa... St. Charles... St. John The Baptist...
St. Tammany... upper Jefferson... upper Plaquemines... upper St.
Bernard and Washington. In southern Mississippi... Hancock...
Harrison... Jackson... Pearl River... Pike and Walthall.

* Through Friday evening

* efficient tropical type rains will be capable of producing
rainfall rates of 2 to 3 inches per hour at times this afternoon
and evening. A similar scenario is expected to develop once
again Friday. General rainfall accumulations of 2 to 4 inches is
expected with locally higher amounts of 6 to 8 inches possible
through Friday evening in the watch area.

* Torrential heavy rains will produce rapid ponding of water.
Drainage canals and ditches may fill to bankfull during periods
of torrential rains. Some roadways will come impassible.

Precautionary/preparedness actions...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.

Do not drive into areas where water covers the roadway. Do not
drive around any barricades posted by local officials.

Member Since: Posts: Comments:
1017. ncstorm
National Poll done on June 27th and July 1st..nope I dont see climate change on there anywhere..

Two National Surveys of 1,000 Likely Voters
June 27-28 and July 1-2, 2012

Issue


Very Important

Economy


74%

Health Care


67%

Gov't Ethics and Corruption


64%

Taxes


55%

Energy Policy


44%

Education


55%

Social Security


60%

Immigration


47%

National Security/War on Terror


46%

Afghanistan


30%
Member Since: August 19, 2006 Posts: 13 Comments: 15285
Member Since: March 16, 2012 Posts: 127 Comments: 7942
Quoting Patrap:



amen Brotha,

Amen

Hey chuck, do you expound your personal view on Climate Change to your TV viewers?

Curious is all.

: )



If he does, he might already be on the Forecast the Facts list. There are some really interesting ones on there - they run the whole span of skeptical opinions from flat out denial that CO2 is a greenhouse gas to denial that greenhouse gases cause warming to the more simple skepticism that greenhouse gases from humans are causing the majority of the observed changes.
Member Since: Posts: Comments:
1014. Patrap
Its a good buy and solid investment too.

From Our News Center
Air Products’ LNG Expertise Selected for PETR...
APD - NYSE $81.50 -0.04 19 July 2012 4:07 PM
Member Since: Posts: Comments:
1013. txjac
Quoting VAbeachhurricanes:


I wasn't being funny?


No, not you ...the guy standing on the lettuce ...him thinking it was a joke ...not you
Member Since: Posts: Comments:
Interesting tidbit from this week's drought report:

"The city of Indianapolis, Indiana, implemented mandatory water restrictions for the first time ever with many trees dropping their leaves and going dormant months early. "
Link

and they're "only" in the D3 (Extreme) category.. starting to see D4 (exceptional) start to pop up just to their south across the Kentucky line.
Member Since: Posts: Comments:
nvm, i see
Member Since: Posts: Comments:
1010. Patrap
Quoting redwagon:

Who'd we buy that liquid oxygen and hydrogen from, again?




Air Products.


Hydrogen

Oxygen
Member Since: Posts: Comments:
Quoting Patrap:


Indeed.

All you need is 3 SSME's, or Space Shuttle Main Engines..

And oh, 500,000 gals of LOX and Hydrogen and a 8 Min depletion rate and bingo, a Shower or Thunderstorm can be produced.





Who'd we buy that liquid oxygen and hydrogen from, again?
Member Since: Posts: Comments:
907 Tribucanes: If we don't worry about it now, our next two generations will; and it'll be a nightmare to deal with. Not acting now may cause the next two generations to be living in third world conditions here in US and across the West in general. No will to act now at all, I agree with that largely, but we must.

Living under the equivalent to presentday ThirdWorld conditions is a lot better than what ThirdWorlders can expect. Only a short few months of food left in the WorldGrainReserve/etc.
Russia, Canada, Brazil, and the US are already looking at large shortfalls in their normal annual contributions to the world's food supply. Does the word 'genocide' sound familiar?
Malthusian famine ain't likely to wait for the next generation.
Member Since: Posts: Comments:
1007. Patrap
Quoting BobWallace:


No, you're not the a silent minority here. You and your fellow deniers frequently type junk on your keyboards and post it to the site.

That out of the way, a lot, lot people than 0.1% of the world's population are concerned about climate change. In fact the number is quite significant.

But if we follow your lead we will do nothing to stop ourselves from getting hurt more by storms, droughts, floods and massive snowfalls. Some of us are also going to get hurt by rising water. We'll all get hurt by rising food prices. We'll all see our tax dollars to storm/flood/drought recovery when they should be going to make our lives better.

Last thing we should do is follow your lead and play ostrich.



amen Brotha,

Amen

Hey chuck, do you expound your personal view on Climate Change to your TV viewers?

Curious is all.

: )

Member Since: Posts: Comments:
Quoting Chucktown:


Here is a big juicy fact - we are a silent minority here on this blog whether we believe in climate change or not. 99.9 % of the worlds population have too many other things to worry about than the state of the world's climate. The world's poor economy and whether or not family's can feed their kids and pay their mortgage is on the top of their to do list. Why worry about something that we are not sure is even happening and on top of that, most people aren't going to do a thing about it.


No, you're not the a silent minority here. You and your fellow deniers frequently type junk on your keyboards and post it to the site.

That out of the way, a lot, lot people than 0.1% of the world's population are concerned about climate change. In fact the number is quite significant.

But if we follow your lead we will do nothing to stop ourselves from getting hurt more by storms, droughts, floods and massive snowfalls. Some of us are also going to get hurt by rising water. We'll all get hurt by rising food prices. We'll all see our tax dollars to storm/flood/drought recovery when they should be going to make our lives better.

Last thing we should do is follow your lead and play ostrich.
Member Since: Posts: Comments:
Welp, we're doomed.
Member Since: Posts: Comments:
1004. hydrus
This Hubble site has a really cool explanation of dark energy and how it affects the Universe..Link
Member Since: Posts: Comments:
Quoting txjac:


Amen washington ...my kids werent raised like this either. But it is so frustrating to watch this happening ...we are are own worst enemy
This nation is going to hell and so is other parts of the world.Sorry had to get that off of my chest...
Member Since: Posts: Comments:
1002. bappit
Member Since: Posts: Comments:
1001. KEEPEROFTHEGATE (Mod)
Quoting txjac:


Makes me real sit and wonder about what we are morally becoming as a nation. Seriously ...someone thought this was funny? And we sit around and wonder why jobs are going elsewhere (not that you can export BK jobs) but what has happened to integrity and pride??? Shaking my head in shame
you would truly be surprized if you really saw what goes on

i remember seeing some nasty stuff when i worked in a few grease spoons in my younger days

Member Since: Posts: Comments:
Member Since: Posts: Comments:
Quoting redwagon:

Nobody's answered me, can we create more precipitable water in our troposphere using hydrogen and oxygen?


Indeed.

All you need is 3 SSME's, or Space Shuttle Main Engines..

And oh, 500,000 gals of LOX and Hydrogen and a 8 Min depletion rate and bingo, a Shower or Thunderstorm can be produced.

We use to see that all the time at Stennis Space Center where every shuttle engine was test fired.



Anything else?


Final Space Shuttle Main Engine Test @ Stennis Space Center




Member Since: Posts: Comments:
Quoting stormchaser19:


Something is wrong on your prediction :) the sentence is in double sense lol

?
Member Since: Posts: Comments:
997. txjac
Quoting redwagon:

Nobody's answered me, can we create more precipitable water in our troposphere using hydrogen and oxygen?


Wish that I had an answer for ya
Member Since: Posts: Comments:
Texas Drought monitor : Improvement!
Member Since: Posts: Comments:
995. txjac
Quoting washingtonian115:
This is the world my children are growing up in....I just know as a parent I raised them the right way and hope they go out into the world as good civilians.


Amen washington ...my kids werent raised like this either. But it is so frustrating to watch this happening ...we are are own worst enemy
Member Since: Posts: Comments:
908 Patrap: Go fig ya?

Sorry. Grothar's gonna hafta translate that from Scandahoovian.
Member Since: Posts: Comments:
Quoting KEEPEROFTHEGATE:
NATIONS EMPTY BASKET MORE THAN LIKLY

Nobody's answered me, can we create more precipitable water in our troposphere using hydrogen and oxygen?
Member Since: Posts: Comments:
Quoting txjac:


Makes me real sit and wonder about what we are morally becoming as a nation. Seriously ...someone thought this was funny? And we sit around and wonder why jobs are going elsewhere (not that you can export BK jobs) but what has happened to integrity and pride??? Shaking my head in shame
This is the world my children are growing up in....I just know as a parent I raised them the right way and hope they go out into the world as good civilians.
Member Since: Posts: Comments:
Quoting ilovehurricanes13:
200 PM EDT THU JUL 19 2012

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 72 HOURS.


?

000
ABNT20 KNHC 191738
TWOAT

TROPICAL WEATHER OUTLOOK
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT THU JUL 19 2012

FOR THE NORTH ATLANTIC...CARIBBEAN SEA AND THE GULF OF MEXICO...

TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS.

$$
FORECASTER AVILA/SISKO
Member Since: Posts: Comments:
Quoting washingtonian115:
I don't see any racist comments and if their are any they better take their ignorance somewhere else.


nah, my fault..I saw something but it was later clarified..trust..I dont like implications made even in subtlety..
Member Since: August 19, 2006 Posts: 13 Comments: 15285
989. txjac
Quoting Articuno:

Man, I love bk, but seeing that makes me want to barf..


Makes me real sit and wonder about what we are morally becoming as a nation. Seriously ...someone thought this was funny? And we sit around and wonder why jobs are going elsewhere (not that you can export BK jobs) but what has happened to integrity and pride??? Shaking my head in shame
Member Since: Posts: Comments:
Man, I love bk, but seeing that makes me want to barf..
Member Since: Posts: Comments:
Quoting TropicalAnalystwx13:
My prediction for August is 5 named storms, 3 hurricanes, and 1 major hurricane.


Something is wrong on your prediction :) the sentence is in double sense lol
Member Since: Posts: Comments:
986. txjac
Quoting redwagon:

TFP fell off the map for that moisture heading our way.
No worries. I know when the GOM's going to do something just in time to roll up my truck's windows.


I like it coming this way redwagon ...been in a rainy mood lately
Member Since: Posts: Comments:
Quoting Neapolitan:
The "Nation's Breadbasket" looks like, er, toast:

Click for larger image:

drought


...or a breadbasket case, if you will...
NATIONS EMPTY BASKET MORE THAN LIKLY
Member Since: Posts: Comments:
984. txjac
Quoting Neapolitan:
Well, this should certainly help with the drought situation:

hot
hot
hot
hot


My son is in Missouri ...has been blistering there! And he's a Houston boy!
Member Since: Posts: Comments:
Burger King Employee Stands on Lettuce: Busted by Internet
By Sarah B. Weir, Yahoo! blogger | Shine Food Wed, Jul 18, 2012 12:37 PM EDT


Ever feel like nothing is secret any more because of the Internet? You may be right. It took 4Chan users only 15 minutes to track down and bust the Cleveland-area Burger King employee who stood on top of two containers of shredded lettuce and then posted a picture of the gross act. 4Chan is a bulletin board-type website where members post images and comments.

"This is the lettuce you eat at Burger King," wrote the unnamed employee on the evening of July 16. Guess he thought that was funny. Other users weren't laughing: according to Hypervocal.com, Anonymous, the notorious vigilante hacking group, used GPS data embedded in the photo to locate the fast food restaurant's address and reportedly contacted the franchise and FoxNews8. "Whoever this is is getting fired," a morning shift manager named Andrea, told the Cleveland Scene.

Member Since: Posts: Comments:
Quoting ncstorm:
the blog is now in racist mode..

I don't see any racist comments?
Member Since: Posts: Comments:
Quoting nofailsafe:


And how much water do you think that might be?

Dunno - look at any landmass on the planet and figure what populations therein have recently done to lockup water out of their atmosphere in infrastructure.

Hint: start with developing nations.
Member Since: Posts: Comments:
Quoting Patrap:
I'll have a Whopper FB, a Large Coke and fries.

Oh, and a Pair o dem Nike's Size 10 to go please?






sure thing that will be $20,000 at the next window plzs
Member Since: Posts: Comments:

Viewing: 1030 - 980

Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30Blog Index

Top of Page

About

Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.