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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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
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Quoting ncstorm:
the blog is now in racist mode..
I don't see any racist comments and if their are any they better take their ignorance somewhere else.
Member Since: August 14, 2010 Posts: 10 Comments: 17481
138 hours
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The "Nation's Breadbasket" looks like, er, toast:

Click for larger image:

drought


...or a breadbasket case, if you will...
Member Since: November 8, 2009 Posts: 4 Comments: 13603
Quoting Patrap:
Gulf Of Mexico - Rainbow Loop

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.
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..
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I'll have a Whopper FB, a Large Coke and fries.

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

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Quoting redwagon:Or, rather, our water being entrapped in human infrastructure - concrete, housing, people, crops, cars, lawns, septic tanks, ponds, sewage treatment plants, you get the idea.


And how much water do you think that might be?
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972. JLPR2
Quoting Tropicsweatherpr:


From now on we will see if this wave can remain strong or it caves to the Sal. What it may do is to clean the path for the waves that will come behind.


Probably the second, if a another wave were closer to it inland I would be like, dude! The one behind it has a chance! XD
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My prediction for August is 5 named storms, 3 hurricanes, and 1 major hurricane.
Member Since: July 6, 2010 Posts: 113 Comments: 32523
Quoting Patrap:
Y'all think Bain Capital and BlackStone are "watching us" lowly blogger's down here from their "Ivory Corporate Tower's"?

Hmmm, hmmm?


No, but I'm sure all the employee's at Burger King, Dominoes, and Sports Authority are thankful for their employment.
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Quoting JLPR2:
Convection ready to hit water...

And die...
Member Since: August 14, 2010 Posts: 10 Comments: 17481
18z GFS running

120 hours in
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Well, this should certainly help with the drought situation:

hot
hot
hot
hot
Member Since: November 8, 2009 Posts: 4 Comments: 13603
Quoting JLPR2:
Convection ready to hit water...



From now on we will see if this wave can remain strong or it caves to the Sal. What it may do is to clean the path for the waves that will come behind.
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Gulf Of Mexico - Rainbow Loop
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Quoting Patrap:
New Orleans
NEXRAD Radar

Storm Total Surface Rainfall Accumulation ° Elevation
Range 124 NMI



Unfortunately, the rainfall near the Slidell area was under-estimated by the radar, which is common for areas within the nearest 30-40 miles or so. There should probably be a decent swath of 3-4" with isolated higher amounts centered over Slidell.
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Even the GFS sees nothing on it 300hrs out.2009 part two...
Member Since: August 14, 2010 Posts: 10 Comments: 17481
962. JLPR2
Convection ready to hit water...

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Quoting VAbeachhurricanes:
'

Why are you acting like they are the only two discussing it?


Chucktown said it and yoboi agreed.
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Y'all think Bain Capital and BlackStone are "watching us" lowly blogger's down here from their "Ivory Corporate Tower's"?

Hmmm, hmmm?
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Round two..second shift reporting in..1st shift clocking out..
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Same article:

"The authors conclude that climate change has become perceived as a form of cultural affiliation for most people: their acceptance of it is mostly a way of reinforcing their ties to the political and ideological communities they belong to."

Kind of explains how people who claim that climate is not important spend so much time posting about it.
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What else is new?
Member Since: August 14, 2010 Posts: 10 Comments: 17481
Quoting dogsgomoo:
All our problems are interconnected and need to be dealt with. I know. I know. So silly. So cliche. What's the point.

Throughout Earth's history, Co2 and greenhouse particulates have covered us causing ice formation, ice meltdown. Asteroids, volcanoes, sea methane bubble-ups, everything that could be thrown at our atmosphere has been. This change has been ~beneficial for the mammals, less so for the rest.

What has not EVER happened is the loss of water in Earth's water cycle. That's a new (~75 yr) phenomenom.
Or, rather, our water being entrapped in human infrastructure - concrete, housing, people, crops, cars, lawns, septic tanks, ponds, sewage treatment plants, you get the idea.

The Earth has less water to work with, and less to snow down on the Arctic and Antarctic.

Who plans to create more water out of our hydrogen and oxygen atmosphere?
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883 nigel20: I'm not able to see the images.

Fouled up my image links. Didn't miss much: skipped the biting political/oil/environmental messages.
My taste in humor bends toward the absurdist.



inre 796 WxGeekVA: More HERE

HIGHLY recommended reading for everybody.
903 CaicosRetiredSailor: If ya can't take the heat, stay outa the kitchen...
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Quoting Patrap:


You may need dat, but us edumacated folks do jus fine.


Man dats a lotta convection, aye, eeeeeee

. TRANSLATION:You may need that but us uneducated folks do just fine.Man that's a lot of convection I see.

Just mess'in with you Pat.
Member Since: August 14, 2010 Posts: 10 Comments: 17481
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.
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Ideology clouds how we perceive the temperatures

In case you missed it.

"The results show that not all weather events are created equal. When it comes to things like flood and droughts, most people seem to have accurately registered the recent trends in their area. But when the subject shifts to temperatures, the actual trends become irrelevant, and ideology and political beliefs shape how people perceive things. As the authors put it, "the contentious nature of the climate change debate has influenced the way in which Americans perceive their local weather."
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Maybe we can be like Wall-E where we live in space ships since the planet was so trashy.Lol.
Member Since: August 14, 2010 Posts: 10 Comments: 17481
Quoting StormTracker2K:


What do we need an ebonics translator now?


You may need dat, but us edumacated folks do jus fine.


Man dats a lotta convection, aye, eeeeeee

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Quoting trHUrrIXC5MMX:


so that 0.01% have nothing else to do but that... or called no-lives

You said it, not me.
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Quoting Articuno:
I went to the pool today. Luckily I didn't go yesterday. ;)
Yep nature sure put on a show yesterday.More thunderstorms for tonight though.
Member Since: August 14, 2010 Posts: 10 Comments: 17481
Yeah. See. There's always more important things to worry about. It's never the right time. We have other problems to deal with. There's something more important to do. That's our nature. That's often why there are so many problems.

Back in college a friend used to live in an apartment building owned by an absentee and negligent landlord. I hated visiting there. The roof kept leaking till rot and mold had formed in the upper units and hall, internal trash chutes sat unemptied till rats became a problem and the city itself intervened, broken hallway windows let cold air and pests in, major safety and health issues were addressed with temporary fixes, tarps, "under repair" signs, bribes, or were completely ignored. All this despite charging the suckers there a decent rent.

Of course he, like me had more immediate thing to think about; school, job, bills. Bigger problems. More immediate priorities. Roommates and neighbors had their owns problems. Rent, kids, family, food, health, legal issues. There's nothing new in stating that everyone has their own problems and their own priorities. We talked about the building and owner a few times, everyone there whined about it, but no one wanted to organize and tackle the one problem that affected them all. Whatever. Who cares. He ended up moving out and finding a much better living situation. You could say he acted but really it was apathy that won the day.

The thing is, unlike temporarily living in Organic Manure Hole Acres, we don't have another planet to move to. All our problems are interconnected and need to be dealt with. I know. I know. So silly. So cliche. What's the point.
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I went to the pool today. Luckily I didn't go yesterday. ;)
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New Orleans
NEXRAD Radar

Storm Total Surface Rainfall Accumulation ° Elevation
Range 124 NMI

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Quoting bappit:
"99.9 % of the worlds population have too many other things to worry about than the state of the world's climate."

... but not yoboi and Chucktown!
'

Why are you acting like they are the only two discussing it?
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Quoting Chucktown:


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.


Oh, this one is easy. You do NOT have to worry about it. There - done.

I mean, just as long as it's OK for others to worry about it if they want. You know, like the military (see post #908). There's a difference between not worrying about something and telling somebody else they're wrong for worrying about it. If your issue is that you don't, personally, want to spend your time worrying about climate change then I say... give yourself permission not to worry about it. Life is short. But surely you aren't here to tell other people how to spend their time and energy...

On the topic of weather, hey at least this week's drought monitor for Colorado looks slightly better than last week:

Last Week


This Week


It ain't much improvement... but it's a little bit and I'll take it.
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Quoting bappit:
"99.9 % of the worlds population have too many other things to worry about than the state of the world's climate."

... but not yoboi and Chucktown!


so that 0.01% have nothing else to do but that... or called no-lives
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If we have to wait until the last week of August to see any development that means more arguing on the blog about GW that will eventually lead to some people get banned.
Member Since: August 14, 2010 Posts: 10 Comments: 17481
"99.9 % of the worlds population have too many other things to worry about than the state of the world's climate."

... but not yoboi and Chucktown!
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I wrote a lot of today's Blue Hill Meteorological Observatory daily discussion if you want to read it... Almost an inch and a half of rain from thunderstorms yesterday.

The remnants of TS Khanun are leaving the Korean peninsula... I wonder how much rain they got...

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Quoting ChaseyChasinStorms:
Good afternoon Patrap,

I am in Slidell and we've had 3 inches of rain in the last hour and a half. Water is coming in my office and the streets are flooded. It's so bad the sewers are overflowing into the streets and it smells like Bourbon Street. Yes it's a cool 72 degrees right now but it's raining cats and dogs. We are under a Flash Flood Warning until 5pm.............


It was at 3.5" and still climbing slowly when I left the office. Portions of Airport Rd and Northshore Blvd are under water. Looks like reports also in of water over Rue Rochelle and also Gause Blvd. Water nearing a few homes in the NW parts of town (observed from my commute home).
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Quoting Tropicsweatherpr:


The latest image of the Strong Wave.


It won't look that strong a day from now, lol... Still a couple more weeks before anything coming off Africa can maintain itself enough to have a shot at development.
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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.


Well, for starters, we do know it is happening, and the people that will be affected the most are those that you claim have "too many other things to worry about." I might suggest reading further into research on how global food prices, energy prices, and world economies all interconnect, then maybe do some deep hard thinking about how a world with fewer resources, more severe droughts, and more population can even afford to not care about their future.
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Quoting nigel20:

Hey Wash! How have you been?
. I'm good just getting a few errans in.
Member Since: August 14, 2010 Posts: 10 Comments: 17481
OK....OK....

It's so bad the sewers are overflowing into the streets and it smells like Bourbon
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Quoting ncstorm:
keep your fingers crossed..

from Levi
A strong tropical wave currently along the meridian in western Africa will propagate into the Atlantic next week, and will likely maintain a definitive signature as it moves westward. An abundance of sinking air due to the suppressing subtropical high should keep it in check during its journey.


The latest image of the Strong Wave.

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Quoting washingtonian115:
I wonder when that line of storms is going to come.They seem to be moving slowly.Bad news if they come this way for people that have been flooded out over here.I don't think the wave Levi is talking about will develop.

Hey Wash! How have you been?
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Quoting yoboi:



and

and...

When using Dr. Masters' blog, please refrain from posting material not relevant to the discussion of tropical weather, or the topic of the blog entry itself. Please do not engage in personal attacks or bickering. Material not conforming to these standards should be flagged with the button and ignored.

Not saying the climate change talk isn't relevant right now, but it won't be on every blog either.
Member Since: July 6, 2010 Posts: 113 Comments: 32523

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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.