Record warmth at the top of the Greenland Ice Sheet

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

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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

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1380. barbamz
Cinema shooting:
12.18 University Hospital confirms that a three-month-old baby was injured.

Member Since: Posts: Comments:
i.picked.adam.scott.in.a.small.pool...go.tiger.u.s. a
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Quoting islander101010:
not.sure.what.to.say...gw.is.not.our.worst.proble m



I agree.
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Quoting Patrap:


Because I dont kinder to Political BS from a Bat Crazy Congresswoman black Balling good Americans.

Anything else.






Pat, this situation has NO bearing on political BS. This is a tragedy that no could have ever imagined happening here in the US. I put myself in these parents shoes that dropped there kids off at the movie theater and now some of them dead so a political spin on this is not warrented. Sorry!
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1376. Patrap


Member Since: July 3, 2005 Posts: 427 Comments: 129435
1375. ncstorm
Quoting Patrap:


Because I dont kinder to Political BS from a Bat Crazy Congresswoman black Balling good Americans.

Anything else.

Your right about the 6year old.

But wrong on the facts, as a 2 year old is the youngest Victim.

And who takes a 2yr old and a 6yr old to a Midnight Premiere anyway?





You need to go back to bed..are you seriously blaming parents who lost their children
Member Since: August 19, 2006 Posts: 13 Comments: 16215
Quoting LargoFl:
..if you listened to Lush Limbaugh a few days ago, he spent hours railing against that movie, guess someone took him seriously


doubt it had anything to do with that. just saying

Quoting Neapolitan:
This is a terrible tragedy. Of course, after the shock and horror of the violence itself has gone away, we'll be left to deal with the aftermath: full-body searches and X-Ray scanners at the entrance to every movie house in the country (administered by the TSA--the "Theater Security Administration", no doubt), endless talk of how violence in movies is making people act out their fantasies, and, of course, a gun-buying frenzy as people again fear an assault on their God-given right to carry high-powered military rifles with gas-tipped slugs into movie theaters...



he didnt go through the front entrance, from what i can tell, he came in through the emergency exit.
They would somehow have to stop you from shooting your way in from those doors, because noone walks through the front entrance a movie theater with bulletproof vests and gas masks
And who said anything about taking military rifles into movie theaters in the debate on whether or not you should be allowed to have a gun?
What about if you wanted to go hunting?
Member Since: February 11, 2012 Posts: 0 Comments: 9746
Quoting SFLWeatherman:
What is that for the 24th??


It's this tropical wave coming up from the SE Bahamas.
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1372. Patrap



Yeah, right.



Member Since: July 3, 2005 Posts: 427 Comments: 129435
Please pray for those affected by this tragedy.
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1370. Patrap
There are now 153 days until the 2012 Winter Solstice.
Member Since: July 3, 2005 Posts: 427 Comments: 129435
Quoting Patrap:
Being its a 24year old White Male in custody for the shooting/massacre..well, that's gonna put a crimp in Michelle Bachmans er, Muslim Brotherhood theory I bet.


Why do you have to put a political spin on a terrible tragedy as this is? What a sad day in the US as many that died are kids as young as 6 years old.
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Member Since: March 16, 2012 Posts: 127 Comments: 7972
1367. VR46L
That Blob now in the Gulf sure has been quite the rainmaker over the last couple of days...

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off.another.good.blog...Water temp is much warmer than what's suppossed to be right now in Peru, i hear 1, 1 and a half ° above normal...feels much more than that...i've never seen so many jellyfish in(and out of)the water ever, hundreds of dead birds(pelicans and seagulls)due to lack of food they say,
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Quoting Patrap:
Being its a 24year old White Male in custody for the shooting/massacre..well, that's gonna put a crimp in Michelle Bachmans er, Muslim Brotherhood theory I bet.
This is a terrible tragedy. Of course, after the shock and horror of the violence itself has gone away, we'll be left to deal with the aftermath: full-body searches and X-Ray scanners at the entrance to every movie house in the country (administered by the TSA--the "Theater Security Administration", no doubt), endless talk of how violence in movies is making people act out their fantasies, and, of course, a gun-buying frenzy as people again fear an assault on their God-given right to carry high-powered military rifles with gas-tipped slugs into movie theaters...
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1364. Patrap
Quoting LargoFl:
..if you listened to Lush Limbaugh a few days ago, he spent hours railing against that movie, guess someone took him seriously


One thing you can count on..I would never listen to RUSH.

There is NO gun control in America. Its a free market at a Gun Show, esp the parking lots. But note the wardrobe the shooter wore. The tactical Call of Duty posturing. Either he is a V-idiot, or a Veteran. My money is on the v-idiot, as a veteran shooter would have done more damage in a Tactical Way, This Guy was living and acting out a Vision in his corrupted mind.
Member Since: July 3, 2005 Posts: 427 Comments: 129435
1363. LargoFl
..................nothing tropical on the atlantic side
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1362. ncstorm
Religion,Politics and GW have been tied to the shooting already on this blog..maybe who ever did the shooting was just mentally ill..just a guess on my part..
Member Since: August 19, 2006 Posts: 13 Comments: 16215
What is that for the 24th??
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1360. LargoFl
.................................7-day for tampa bay area..supposed to be even hotter today but the sunshine feels great
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1359. LargoFl
Quoting Patrap:
Being its a 24year old White Male in custody for the shooting/massacre..well, that's gonna put a crimp in Michelle Bachmans er, Muslim Brotherhood theory I bet.
..if you listened to Lush Limbaugh a few days ago, he spent hours railing against that movie, guess someone took him seriously
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1358. LargoFl
Quoting ncstorm:
Prayers sent to those in Colorado..this reminds me of Columbine..
..ditto
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1357. ncstorm
Prayers sent to those in Colorado..this reminds me of Columbine..
Member Since: August 19, 2006 Posts: 13 Comments: 16215
wheres.the.wind.at.the.british.open?
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Quoting Neapolitan:
Neither are heavily-armed psychos with smoke grenades and bulletproofs vests attending midnight screenings of popular movies.

Senseless. Senseless, senseless, senseless...


was he trying to "mock/copy" Bane?
Member Since: February 11, 2012 Posts: 0 Comments: 9746
Quoting islander101010:
not.sure.what.to.say...gw.is.not.our.worst.proble m


Yes it is.

If you think a few psychos at a movie are bad, wait until normal people are stressed out and making life/death decisions involving thier survival or yours.

I think there are about 20% of the population that are stable under stress, if that. Wait until stressed out religious people start making life or death decision based on what thier belief in God told them was right.

(I am not picking on religion or being an Atheist. I chose religion because it is one of the major moral frameworks, pick your own framework and substitute it if you please. The point was that any framework is warped under stress, not that religion is bad.... probably would have been easier to change the post at this point.)
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august.5-10..could.be.a.cyclone.off.the.fl.coast
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not.sure.what.to.say...gw.is.not.our.worst.problem
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1350. Patrap
Culture, is not your friend. A movie Premiere about Violence and mayhem ?

Culture is crap today. Its artificial, and well, Live action came to visit in a Terribly horrible way. A new High for those 2nd amendment folks.


U betcha.

This took time to plan, and was executed in a calm way. How does a armed guy dressed in Black wearing a Flak Jacket even get in a Theater?

O snap, all the TSA are at the Airport.

ps. 17 folks were shot in a Alabama Bar a few days ago. Context is in the Mass Media Hands.
Member Since: July 3, 2005 Posts: 427 Comments: 129435
Quoting Patrap:
Insanity in a insane World.


Culture is NOT your friend.
Neither are heavily-armed psychos with smoke grenades and bulletproofs vests attending midnight screenings of popular movies.

Senseless. Senseless, senseless, senseless...
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1348. Gearsts
Quoting MAweatherboy1:
Good morning... The 0z GFS has a depression/weak storm off the FL coast at 324 hours...

About time!
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1347. Patrap
G' morn and Fantastic!

Im sure many will take it as Gospel.

: )
Member Since: July 3, 2005 Posts: 427 Comments: 129435
Good morning... The 0z GFS has a depression/weak storm off the FL coast at 324 hours...

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1345. Patrap
Insanity in a insane World.


Culture is NOT your friend.
Member Since: July 3, 2005 Posts: 427 Comments: 129435
1344. barbamz
Not a good morning. Follow your news. Many people died.

July 20, 2012 4:54 AM PrintText Mass shooting at Batman premiere in Denver suburb suburb, Aurora, Colorado

Edit: 14 people dead; about 50 wounded

Live coverage:
http://www.9news.com/video/player_live_2.aspx
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1343. barbamz
Good morning over there. Visit the landslide blog to watch this:

20 July 2012: So how does a landslide generate a tsunami? An amazing video of a collapsing glacier. Landslides are a key mechanism through which localised tsunamis can be generated, but it is very difficult to actually visualise this process. An amazing video has just appeared on Youtube that shows this process very clearly. The video is actually of a collapsing glacier in Greenland, shot from a boat.

http://blogs.agu.org/landslideblog/

And don't miss the other videos and reports on this page from the last days, f.e. from a submarine landslide:

19 July 2012: Incredibly rare footage of a submarine landslide. Submarine landslides are poorly understood, in part because it is so difficult to capture them in real-time. This makes the following video, recorded at Cabo Sab Lucas, Baja California in Mexico, incredible valuable.
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Good Night Night Crew
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Something north of the Islands?
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Quoting Bobbyweather:

But I heard there was very high shear located near the red-shaded area.


In the short term that is correct, but it's very hard to predict wind shear further than 5-7 days out, but the TCHP will definitely be steaming this Aug/Sep.
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Hold Down the fort Night Crew!!!!!!!!!
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1337. HadesGodWyvern (Mod)
Japan Meteorological Agency
Tropical Cyclone Advisory #3
TROPICAL DEPRESSION 09
15:00 PM JST July 20 2012
=====================================

SUBJECT: Tropical Depression In Sea East Of The Philippines

At 6:00 AM UTC, Tropical Depression (1002 hPa) located at 17.3N 123.5E has 10 minute sustained winds of 30 knots with gusts of 45 knots. The depression is reported as moving northwest at 6 knots.

Dvorak Intensity: T2.0

Forecast and Intensity
========================

24 HRS: 18.5N 121.5E - 35 knots (CAT 1/Tropical Storm) - Bashi Channel

Additional Information
====================

Tropical depression will accelerate for the next 24 hours

Tropical depression will move northwest for the next 24 hours

Tropical depression will be upgraded to tropical storm within 24 hours

Tropical depression will develop because cyclone will stay in high sea surface temperature area

Final initial Dvorak number will be 2.0 after 24 hours
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Quoting aspectre:
1137 ktymisty: I get a lot of news about Fukushima from the Fukushima Dairy website. The chatbox is a bit depressing to 'listen to' but it's got some very good info.

The FukushimaDiary is garbage that detracts from serious reporting in the same way that the "flying saucer" folks buried good info about unidentified flying objects (much probably experimental military aircraft/missiles) under tons of "little green men" nonsense.
If TEPCO* ain't payin' Mochizuki for his blog, they should be outta pure gratitude for keeping their "plausible denial" BS plausible.

* The outfit that was running the Japanese nuclear industry down the toilet even before the GreatTohokuEarthquake... well before... at least, all the way back to doing the groundwork in preparation for building the FukushimaDaichi powerplant.


It's led me to interesting news, like the protests. It shows me via the chatbox what some people think. It has some interesting viewpoints.

I have scores of news sites I visit every week or so and each gives me something. I'm discriminating enough to see the dross for what it is.
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Faster and faster we swing towards destiny. Destiny is normally described as a good thing.
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Quoting Slamguitar:
Last Year


Now



Going to be more of a home grown peak of the season coming up.

But I heard there was very high shear located near the red-shaded area.
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Quoting Tygor:
Man it looks like this wave is going to go POOF again right off the coast.

That sounds like a good prediction.
But I can't prove it right, because all the Atlantic images have not been updated since 0310 UTC.
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G'night everyone. 10,000 buildings out of power in Nashville, Tennessee. EXCEPT ME!
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good evening everyone.
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1137 ktymisty: I get a lot of news about Fukushima from the Fukushima Dairy website. The chatbox is a bit depressing to 'listen to' but it's got some very good info.

The FukushimaDiary is garbage that detracts from serious reporting in the same way that the "flying saucer" folks buried good info about unidentified flying objects (much probably experimental military aircraft/missiles) under tons of "little green men" nonsense.
If TEPCO* ain't payin' Mochizuki for his blog, they should be outta pure gratitude for keeping their "plausible denial" BS plausible.

* The outfit that was running the Japanese nuclear industry down the toilet even before the GreatTohokuEarthquake... well before... at least, all the way back to doing the groundwork in preparation for building the FukushimaDaiichi powerplant.
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Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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