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Messages - Espen

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51
Arctic sea ice / Re: The 2019 melting season
« on: September 13, 2019, 12:51:24 AM »

This is my thought too; that there isn't enough insolation to melt the ice N of 80°N with the current FDD thickness increase, even in a sunny year.


At the end of July, I said as much, while the melt season thread was in full rampant flow.

From a discussion point of view, this seemed to be too controversial at the time and the discussion was taken off to another thread and died a death.

It is a pity that the melting season thread, at certain times of the year, can be a discouraging place to raise a different point of view.

 

The subject of sea ice extent/area/volume is now more related to gaming, unfortunately?

52
Greenland and Arctic Circle / Re: Jøkelbugt / North East Greenland
« on: September 11, 2019, 07:16:30 PM »
The last remaining offshore fast ice in the Northern Hemisphere, I know about, nicknamed "The Untouchable" did survive longer than I anticipated, but I am convinced it will disappear for the first time this season since 2003 , the reason for why it is stucked there is because of the very shallow water in that area, underneath there is a very extensive sandbank called Belgica Banke, and frozen together with many (+70) old grounded glacier icebergs the sea ice becomes very strong and almost impossible to break up.
Why is this phenomena so interesting? Remember not far from here we have the large Zachariae Isstrøm, and my studies show that the breakup of all sea ice in front of and inside Jøkelbugt in 2001 to  2003 started the massive break up and retreat of Zachariae Isstrøm in the years thereafter, but anyway it will be interesting to see if "The untouchable" will rebuild its strength over the winter, it will depend on the amount of glacier icebergs available.

53
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: September 09, 2019, 12:51:51 PM »
Danish newspaper Politiken today had a frontpage story:

https://politiken.dk/klima/art7361623/Danmark-bremser-vigtig-klimaforskning-ved-Grønland

Apparently, the Danish Ministry of Foreign Affairs has been very reluctant to allow a Swiss-led expedition to circumnavigate Greenland this year.

One of the sticky points seems to be that the 45 researchers would need assistance from two Russian ice-breakers to get around.

Climate researchers are optimistic that the cruise will take place next year.

There could be other reasons too, the trip around Greenland via Nares Strædet is probably the only trip left that was never done, and I know from rumors that a private arrangement was underway for letting some very well to do people getting the honours of being the first to do so.

54
A very impressive image from Petermann taken by the the NASA Icebridge Team September 4 2019:

55
Here is actually a very up to date image of the tongue, taken yesterday by the Icebridge Team:

56
Has there been any deterioration of the portion that has separated from the glacier?

Here is animation showing the deteriotion from 2009 to 2019:

57
Greenland and Arctic Circle / Re: Jøkelbugt / North East Greenland
« on: September 05, 2019, 05:49:42 PM »
It is called sea ice
Espen, is there a name for landfast ice younger than that?

58
Greenland and Arctic Circle / Re: Jøkelbugt / North East Greenland
« on: September 05, 2019, 12:10:47 PM »
This is something that doesn't happen often, but within hours from now the real fast ice in Jøkelbugt will be gone: Fast ice is becomming very rare in and around Greenland, the only fast ice left, to speak about is in the mouth of the Independence Fjord system.

Fast ice is sea ice that is more than one season old!

59
I may add that the year 2002 and is very similar to 2019, since both the Independence Fjord system  (including Danmark Fjord and Hagen Fjord) and the Jøkelbugt area is covered with very little sea ice as in 2002 see below:

60
Has there been any deterioration of the portion that has separated from the glacier?

Yes but relatively little, but some parts in the north, east and south.

That's good. Once this ice shelf disappears and this area becomes seasonal ice, would this have an effect on the behavior of the glacier and the ice that calves from it?

No I dont think that do will result in any major differences, the big thing that happened to Zachariae Isstrøm was the paradigm shift in the sea ice in front of the islands in Jøkelbugt which took place in the beginning of this century 2001 and 2002 especially, in 2002 almost all or 99% of the sea ice disappeared for the first time in satelite history and the cork in front of Zachariae Isstrøm, a massive amount of old glacier ice could leave the area and set the speed of calving followed by a massive retreat that we can witness today. The image below is from the Zachariae Isstrøm paradigme shift year 2002:

61
Has there been any deterioration of the portion that has separated from the glacier?

Yes but relatively little, but some parts in the north, east and south.

62
Here is an updated retreat situation at Zachariae Isstrøm:

63
Arctic sea ice / Re: 2019 sea ice area and extent data
« on: September 04, 2019, 07:47:56 AM »
A pixel color comparison could be very interesting?

64
Arctic sea ice / Re: 2019 sea ice area and extent data
« on: September 04, 2019, 07:42:20 AM »
Interesting comparison:

65
Made a photo collage out of a Sentinel 2 image and a photo produced by Ulf Hedman onboard the Oden, you can see the 3 small glaciers originating from Permin Land on Ryders Port side (Sentinel 2) and in the background of photo from Oden:

66
Espen so when the two glaciers separate Bredebræ is kaput?

Or earsplittenloudenboomer?

67
Greenland and Arctic Circle / Re: The Nares Strait thread
« on: August 28, 2019, 01:24:37 PM »
You
A very rare sight, the Icebreaker Oden of Sweden, will start the returntrip down Nares Stræde today, after visiting Sherard Osborne Fjord / Ryder Gletscher for more than week, it is the first time I observed a vessel this far north along the northwest coast of Greenland.

Think we will see it on satellite pictures?

You will have to ask CIA or someone similar and ask them to turn the "special" resolution on.
But that said, the traces from the Icebreaker could be seen when they were breaking the sea ice in Sherard Osborne Fjord a few days ago.

68
Greenland and Arctic Circle / Re: The Nares Strait thread
« on: August 28, 2019, 09:35:12 AM »
A very rare sight, the Icebreaker Oden of Sweden, will start the returntrip down Nares Stræde today, after visiting Sherard Osborne Fjord / Ryder Gletscher for more than week, it is the first time I observed a vessel this far north along the northwest coast of Greenland.

69
Another sunny day:

70
Greenland and Arctic Circle / Re: Île de France / North East Greenland
« on: August 26, 2019, 09:13:01 AM »
Fever test update, same situation as above, but with the melt speed over the last few years I believe the ice cover / ice cap at Île de France will be history in 15 - 20 years.

71
Actually all 3 of them are calving into the sea (Borgfjorden and Dove Bugt):

72
Calving on the inland side of where the two glaciers meet. It looks like these glaciers are melting in place rather than retreating.

Actually the area where Storstrømmen (from the north) and L. Ibstrup Bræ (from the south) meet, is where you find a so called confluence glacier named Bredebræ and the lake Randsøen where you see the inland calving, and funny  enough most of the calving in area is actually from Bredebræ (you could also call it a cuckoo glacier)

73
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: August 25, 2019, 09:04:36 AM »
Hello Stumbi , I found it, it is called Kolon Ø and is mapped see below:

74
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: August 24, 2019, 07:59:36 PM »
Hi
Long Time lurker....
As i like Espens quest searching for new Islands
I couldn’t find this one (if it is one) on any map
NE corner of greenland Sentinel Image 22 AUG 19
8150N1630W

Hello Stumbi, I cant recognize the area, could you be more specific than NE Corner og Greenland

75
Greenland and Arctic Circle / Re: The Nares Strait thread
« on: August 23, 2019, 10:36:48 PM »
Now out of Nares Stræde, but just south of Smith Sund, we got the mystirous Carey Øer and in the mist like in a Von Trier setting, its amazing what you can collect from a deck on a cruise liner nowadays:

You may spend a some 15,000 USD or more for this trip, wawes are not excluded

76
Greenland and Arctic Circle / Re: The Nares Strait thread
« on: August 23, 2019, 12:32:03 PM »
Another image of Dodge Gletscher a few minutes ago (Hanseatic Nature) read more about  Dodge Gletscher at Mauris Blog:

https://blogs.agu.org/fromaglaciersperspective/2013/01/12/dodge-glacier-and-storm-glacier-retreat-northern-greenland/


77
Greenland and Arctic Circle / Re: The Nares Strait thread
« on: August 23, 2019, 10:10:20 AM »
Smith Sund, the entrance to Nares Stræde this morning (looking south), Kap Alexander (Greenland to the left):

78
Greenland and Arctic Circle / Re: The Nares Strait thread
« on: August 23, 2019, 09:11:42 AM »
Here is a few images from the visit of Hanseatic Nature August 22 2019:

79
Greenland and Arctic Circle / Re: The Nares Strait thread
« on: August 22, 2019, 05:52:51 PM »
Hanseatic Nature was visiting Hans Ø today, talking about masstourisme?

80
NASA also added the same kind of animation Petermann/Humboldt

81
A massive calving happened over the last 24 hours at Helheim Gletscher the action including a new record (satelite) retreat:

82
Greenland and Arctic Circle / Re: Inland calving.
« on: August 18, 2019, 04:43:46 PM »
It looks like the ice has advanced in the last 35 years?

I think I found the same location? Also the small canyon to the East of the ice calving is now filled with water.

https://apps.sentinel-hub.com/sentinel-playground/?source=S2&lat=81.25148214631507&lng=-52.4267578125&zoom=9&preset=CUSTOM&layers=B01,B02,B03&maxcc=100&gain=1.0&gamma=1.0&time=2019-02-01%7C2019-08-14&atmFilter=&showDates=false&evalscript=cmV0dXJuIFtCOEEqMixCMDMqMSxCMDIqMV0%3D

Yes you are right, the area is refilled again. The lake is about 13 km2 in area.

83
A relatively large calving next to the newly released island :

84
Double calving between yesterday and today:

85
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: August 16, 2019, 08:30:06 PM »
Trump Wants to Buy Greenland

August 15, 2019 at 5:33 pm EDT By Taegan Goddard 116 Comments

Quote
“President Trump made his name on the world’s most famous island. Now he wants to buy the world’s biggest,” the Wall Street Journal reports.

“The idea of the U.S. purchasing Greenland has captured the former real-estate developer’s imagination, according to people familiar with the deliberations, who said Mr. Trump has, with varying degrees of seriousness, repeatedly expressed interest in buying the ice-covered autonomous Danish territory between the North Atlantic and Arctic oceans.”
...

Sorry to spoil your day, b.c.  :'(

Edit: I should say sorry to Espen, too.
I am indifferent, I saw this coming and it will be the biggest chess game we have ever seen, another battleground when it comes to the game the US and China is playing at the moment, I would say the island (Greenland) could be sold for something like 1.200 Billion dollars or about 20.000.000 USD per REAL Greenlanders, and that is dirty cheap, maybe even more depends how far the Chinese wants to go, and you got to remember it is not Denmark who can sell this, it is only Greenland and its people who can decide, and Denmark will loose all their negotiating power when Greenland is not on the table!

And the worst scenario for The Trump,  China can buy all of Greenland for the value China got in US Bonds (debt)!

86
Greenland and Arctic Circle / Re: What's new in Greenland?
« on: August 16, 2019, 08:17:24 PM »
Trump Wants to Buy Greenland

August 15, 2019 at 5:33 pm EDT By Taegan Goddard 116 Comments

Quote
“President Trump made his name on the world’s most famous island. Now he wants to buy the world’s biggest,” the Wall Street Journal reports.

“The idea of the U.S. purchasing Greenland has captured the former real-estate developer’s imagination, according to people familiar with the deliberations, who said Mr. Trump has, with varying degrees of seriousness, repeatedly expressed interest in buying the ice-covered autonomous Danish territory between the North Atlantic and Arctic oceans.”
...

Sorry to spoil your day, b.c.  :'(

Edit: I should say sorry to Espen, too.
I am indifferent, I saw this coming and it will be the biggest chess game we have ever seen, another battleground when it comes to the game the US and China is playing at the moment, I would say the island (Greenland) could be sold for something like 1.200 Billion dollars or about 20.000.000 USD per REAL citizen of Greenland, and that is dirty cheap, maybe even more depends how far the Chinese wants to go, and you got to remember it is not Denmark who can sell this, it is only Greenland and its people who can decide, and Denmark will loose all their negotiating power when Greenland is not on the table. The Trump would not be in Copenhagen in 2 weeks time if it was not because of Greenland!!!!
 

87
Another large Full Moon calving at Zachariae Isstrøm:

88
Arctic sea ice / Re: Arctic Image of the Day
« on: August 15, 2019, 11:15:40 PM »
I was randomly looking at some landscape in the CAA in the Sentinel-hub and found this in the North of Devon Island (exact position can be seen in the bottom right of the picture). Unfortunately I didn't find the name of this glacier.

What are my eyes seeing here? Did the glacier carve a tunnel through the mountain or are those two completely seperate glaciers?

https://apps.sentinel-hub.com/eo-browser/?lat=76.3746&lng=-91.8694&zoom=12&time=undefined&preset=1_TRUE_COLOR&datasource=Sentinel-2%20L1C

It is of of them broken glaciers:

89
Greenland and Arctic Circle / Re: The Nares Strait thread
« on: August 15, 2019, 10:57:15 PM »
Lower strait had 3 clear days in a row causing a big file size - sorry for that.

I2 band, click to play.
Nice animations. I wonder how long that ice in Kane basin will survive, I can't believe it will last the season.

That ice is a mix of glacier ice (from Humboldt Glacier) and sea ice from the north somewhere, I doubt the sea ice is from Nares, the glacier ice will survive at least half year if it gets out of Nares and into Baffin Bay before seasonal shutdown.

90
Not only Helheim Gletscher is in record retreat mode but all glaciers in the entire area surrounding this great glacier are in the same sad condition, especially Franche-Comté Gletscher (which wrongly is also called Midgårdsgletscher at least until they were seperated), and to name a few others Fernisgletscher, Glacier de France, Knud Rasmussen Gletscher.
Notice the accumulation zone is almost gone in this animation:

91
Full Moon at Petermann Gletscher today at 10.29 AM local (about 4 hours from now)

92
The former calving front of Zachariae Isstrøm, now only a very big piece of "death" ice (330 km2), was hit by the rush hour of escaping glacier ice:

93
Like at Petermann Gletscher , Ryder Gletscher is forced to calve by their respective surroundings, it basicly works the same way as a (diamond) glass cutter, and this calving below in animation show exactly how the next major calving will happen at Petermann, you find the "glass cutter" at "starboard":

94
Glaciers / Re: Barnes Ice Cap / Penney Ice Cap
« on: August 13, 2019, 05:17:13 PM »
Latest from Barnes Icce Cap:

95
Arctic sea ice / Re: The 2019 melting season
« on: August 13, 2019, 02:53:53 PM »

It would be interesting to know how much ice the Barnes Ice Cap lost this yet. It seems to have been under blue sky for most of July and August.

I love to see some more data on this do you have any.

Wikipedia says it averages about a meter year lost.

This year probably way abbve that

Here is a timelapse from 1984 - 2018 (Will be interesting to see when they add 2019/2020)

https://earthengine.google.com/timelapse#v=70.08059,-74.06429,6.626,latLng&t=0.03&ps=100&bt=19840101&et=20181231&startDwell=0&endDwell=0

Here you are:

96
Another large calving at Zachariae Isstrøm:

97
As a surprise to me at least, The Swedish Ice Breaker "Oden" is located in Sherard Osborne Fjord, the same fjord where you will find Ryder Gletscher, and it is the first time I ever observed a surface ship / vessel north of Nares Stræde (Strait):

More info here: https://polar.se/en/about-polar-research/expeditions/ryder-2019/

98
Arctic sea ice / Re: Arctic Image of the Day
« on: August 07, 2019, 08:24:39 PM »
Holy Smoke 8)

99
I wonder about the grey coloured ice free spot in the lower third at the calving front. Is this a place where meltwater from underneath the glacier flows into the sea?

I am not what sure what creates these ice free spots, but will you find them reguarly at the calving front of many glaciers.

As here in Giesecke Isfjord:


This time it was a lake that emptied. See attached gif.



Problem solved! Thanks

100
I wonder about the grey coloured ice free spot in the lower third at the calving front. Is this a place where meltwater from underneath the glacier flows into the sea?

I am not what sure what creates these ice free spots, but will you find them reguarly at the calving front of many glaciers.

As here in Giesecke Isfjord:

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