Arctic Sea Ice : Forum

Cryosphere => Greenland and Arctic Circle => Topic started by: Espen on April 01, 2015, 06:06:18 PM

Title: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on April 01, 2015, 06:06:18 PM
Here is another large glacier of Greenland, this time it is Sverdrup Gletscher with a 6.7 km calving front, as most other large outlet glaciers in Greenland this glacier is speeding up and and at the same time retreating, I will report more on this area later in the season because there is so much to report and several glaciers involved:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on July 19, 2015, 10:20:57 PM
A massive calving and retreat active is ongoing around the Sverdrup Gletscher area, while we are staring at Jakobshavn etc.
This is the time to report from Steenstrup and Kjer Gletschers, both glaciers retreated dramatically over the last year.
An unnamed island will soon be be navigable if the process continue, the glacier bridge will simply collapse and "release" the island, the same happened to the island seen in the upper left corner of the animation:

Please click to animate!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on July 21, 2015, 09:05:48 PM
Just a follow up on Sverdrup Gletscher and surroundings, as you can see there are other pretty large "ice-cube-producing" machines around. The red line show the calving front in 1989, and the "small" famous cousin Jakobshavn up in the right corner:

Please click to enlarge!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 23, 2015, 03:37:50 PM
A similar situation as seen at Giesecke Isfjord https://forum.arctic-sea-ice.net/index.php/topic,1371.msg61603.html#msg61603

At Kjer Gletscher we will soon see another ice bridge collapse and an island released from GIS:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 23, 2015, 04:12:26 PM
A longer animation (4 frames) showing the dramatic erosion of the ice bridge at Kjer Gletscher:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 27, 2015, 11:00:12 PM
The ice bridge at Kjer Gletscher, will soon disappear, is it going to happen in 2015?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 28, 2015, 11:11:40 PM
Dramatic changes at Kjer Gletscher, this ice bridge will soon disappear, and the glacier will change both flow and direction thereafter:

Please click to animate!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on August 29, 2015, 08:54:17 AM
Thank you Espen for bringing these updates.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 29, 2015, 03:50:07 PM
The Sverdrup-Dietrichson-Steenstrup and Kjer glacier delta started an ongoing retreat session sometimes in the mid 80ties. I have added Jakobshavn in the same scale to compare what sizes we looking at.
As can be seen these 4 glaciers lost substantially more glacier area than Jakobshavn in the same period, what that translates into volume is unknown:

Click on the image for animation (very large):

Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 30, 2015, 11:27:21 AM
Thank you Espen for bringing these updates.

Oren thanks, yes we better keep an eye on this glacier system/delta since it is obviously a major contributor of ice from GIS.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on August 30, 2015, 02:48:49 PM
I just can't understand how you manage to track all these glaciers simultaneously. It's amazing.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 30, 2015, 03:56:31 PM
I just can't understand how you manage to track all these glaciers simultaneously. It's amazing.

I am not a public and never was? ;)
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 20, 2015, 10:35:47 AM
The demolition of the Ice Bridge at Kjer Gletscher is continuing, when will it collapse?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 20, 2015, 11:12:02 AM
The amount of Glacier Ice (area) lost this season at Kjer Gletscher is far more than what is seen at Jakobshavn, but since we don't know the ice thickness at Kjer there is no volume data. Add Upernavik and Nunatakassap Sermia a little south of here, Jakobshavn becomes just a "Mickey Mouse" glacier.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 20, 2015, 06:49:38 PM
Here is a high resolution image from the Kjer site:

The width of the ice bridge is about 2 km at the narrowest place.

Please click to enlarge!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 27, 2015, 09:54:33 AM
Another brick in the wall left the ice bridge at Kjer Gletscher:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 27, 2015, 10:49:17 AM
One year review of the retreat at Kjer Gletscher, as you can see it is not only at the ice bridge where we see retreat:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on September 28, 2015, 04:21:31 AM
Is that silt from basal flow that we see in the water?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on October 13, 2015, 08:16:12 PM
Kjer Gletscher:

The Ice Bridge is still being attacked from both sides, I wonder how much longer this construction will last?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on October 30, 2015, 08:04:54 PM
Thanks to Sentinel we can now watch Glacier action in the "Dark season", ongoing calving activities are still seen around the Ice Bridge at Kjer Gletscher:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on December 20, 2015, 10:52:44 AM
Kjer Gletcher, part of the Melville debacle, is still showing some calving activities resulting in further retreat of the glacier:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on December 20, 2015, 01:00:25 PM
The Icebridge at Kjer Gletscher may survive in the short term (a decade), because I believe the main stream at Kjer Gletscher soon will loose direct contact with the present icebridge, the Steenstrup icestream reaching the icebridge  from the North is not strong enough to do any serrious damage, then we will see a situation like at Zachariae Isstrøm were the previous tongue of the glacier has become a separate glacier ice peninsula. The icebridge will disappear in long term mainly due to the sea surrounding it, is my guess?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on January 26, 2016, 05:53:39 PM
And here is more action at Kjer Gletscher:

Click on image to animate!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on January 26, 2016, 06:13:11 PM
And by the way Kjer Gletscher is now in record retreat.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on February 28, 2016, 02:08:25 PM
South of Kjer Gletscher and north of Nunatakassap at 74.9258056, -57.0850230 (Google maps) is there an unnamed glacier that is aprox. 4,5 km wide, the glacier is calving big time at the moment:

Please click on image to enlarge and animate!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on February 28, 2016, 09:47:24 PM
Landsat is now back in the upper parts of Greenland, and here we can watch how Kjer Gletscher retreated since we left it Landsat wise in September 2015:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on February 28, 2016, 10:42:01 PM
Just a reminder how much Kjer Gletscher retreated in less than 3 years (2013-2016):
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on March 06, 2016, 11:03:49 AM
The "unnamed" glacier above:  https://forum.arctic-sea-ice.net/index.php/topic,1209.msg70853.html#msg70853 (https://forum.arctic-sea-ice.net/index.php/topic,1209.msg70853.html#msg70853)

Is called Hayes Gletscher and is found on this location:
https://www.google.com/maps/place/74%C2%B056'00.0%22N+57%C2%B006'00.0%22W/@74.834721,-56.0607698,102531m/data= (https://www.google.com/maps/place/74%C2%B056'00.0%22N+57%C2%B006'00.0%22W/@74.834721,-56.0607698,102531m/data=)!3m1!1e3!4m2!3m1!1s0x0:0x0?hl=en

Please click on image to enlarge and animate!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on March 14, 2016, 08:06:48 PM
Between Hayes Gletscher and Nunatakassap Sermia is another spring active glacier found:

Location Google maps: 74.7962500, -56.5791759
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Iceismylife on March 15, 2016, 06:45:02 PM
Looks like the high tides with the solar eclipse may have had some effect after all. we've got a lunar eclipse coming up soon to. This new moon is going to be a partial. 
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on March 23, 2016, 09:22:21 PM
Waiting for the right data to arrive, but here it is, a very large calving happened between March 10 and March 22 2016 but most likely in the latter part of the period.
The width of the glacier is approximately 6,5 km.

Click on image to enlarge and animate!

https://twitter.com/Ecoverycom/status/712737051251183620
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on March 23, 2016, 11:32:30 PM
The whole front fell apart at the same time. Magnificent.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on March 28, 2016, 10:40:11 AM
Landsat documentation of the calving earlier this month:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on March 29, 2016, 10:31:57 PM
A "little" west of Sverdrup Gletscher we find Nansen Gletscher and Nordenskiöld Gletscher, both glaciers are seems to be in spring mode:

Please click on image to enlarge and animate!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 01, 2016, 12:36:00 PM
Serious business is taking place at Kjer Gletscher:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: andy_t_roo on August 01, 2016, 01:21:05 PM
Both sides at once? Does anyone know how mechanically couped the 2 sides are? I would of thought that undercutting from the front would cause failure on one side only. Could this be caused by ice  pushing from behind. That way a failure on one side increases the stress on the other making it fail also.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 01, 2016, 02:51:48 PM
Both sides at once? Does anyone know how mechanically couped the 2 sides are? I would of thought that undercutting from the front would cause failure on one side only. Could this be caused by ice  pushing from behind. That way a failure on one side increases the stress on the other making it fail also.

I expect the the ice bridge at Kjer Gletscher will collapse within a relatively short period max. 2 3 years maybe even much sooner provided we dont have any hidden islands / nunataks in the area.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on August 01, 2016, 02:57:11 PM
Both sides at once? Does anyone know how mechanically couped the 2 sides are? I would of thought that undercutting from the front would cause failure on one side only. Could this be caused by ice  pushing from behind. That way a failure on one side increases the stress on the other making it fail also.

If I understand your question, I think what we are seeing playing out on that tongue is caused by the fact that little if any of the glacier is moving to replenish the losses. We are essentially seeing a fixed section of ice being eaten away by bottom melt on both sides, kind of like in situ melting.

And I agree Espen. That tongue looks very fragile. There is a lot of visible crevices on the southern face where we have seen a lot of retreat.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Tor Bejnar on August 01, 2016, 03:55:58 PM
...
I expect the the ice bridge at Kjer Gletscher will collapse within a relatively short period max. 2 3 years maybe even much sooner provided we dont have any hidden islands / nunataks in the area.

From Espen's gif, I noticed a few brown spots showing up [edit: near the bottom (centered) on the screen shot below].  They are probably 'nothing', but I'll want to keep an eye on them just in case...
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 01, 2016, 04:08:00 PM
This glacier has a lot of calving potential, it got almost a combined 20 km calving front, I will bet the glacier at the moment is in same league as Jakobshavn.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 29, 2016, 09:30:24 PM
Dramatic changes in just 12 days at Kjer Gletscher, the ice bridge could soon be history and a new unamed island be released from the ice sheet:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on August 30, 2016, 02:31:25 AM
Wow! Looks like it could happen this melt season.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 30, 2016, 10:42:16 PM
Kjer Gletscher: Yearly update, retreat is clearly seen and the imminent collapse of the ice bridge connecting the future island (unnamed)
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Tealight on August 31, 2016, 12:51:58 AM
Kjer Gletscher: Yearly update, retreat is clearly seen and the imminent collapse of the ice bridge connecting the future island (unnamed)

You should quickly come up with a name before someone else does.

Sentinel 2 doesn't have images from the latest retreat yet, but while browsing through the tile from 13th August I found an interesting glacier just 30km southeast of the new island. It looks like someone cropped out a part of the glacier and pasted it in again as a calved iceberg. The "oceanic lake" is approximatly 800m in diameter.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on August 31, 2016, 01:09:33 AM
If I understand your question, I think what we are seeing playing out on that tongue is caused by the fact that little if any of the glacier is moving to replenish the losses. We are essentially seeing a fixed section of ice being eaten away by bottom melt on both sides, kind of like in situ melting.

Agreed. Looking at Espen's long-term animations, it seems that once the glacier used to turn right towards the north. Now that calving is directly to the west following significant retreat, no more ice feeds the area of the tongue/bridge and it's quickly disappearing.
I presume that this process also speeded up the glacier somewhat, as buttressing has been lost.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 07, 2016, 05:15:32 PM
Kjer Gletscher update, the collapse of the ice bridge at Kjer Gletscher is only days away, if the retreat continues in the same speed as over the last 30 days:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 24, 2016, 08:59:11 AM
Kjer Gletscher:
It looks like the northern part of the ice bridge at Kjer Gletscher is not being fed enough from Kjer Gletscher itself, and the result will be the soon collapse of the ice bridge to Trekanten (new island The Triangle in English):
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Tealight on September 25, 2016, 09:51:37 PM
Here is a close up of the ice bridge at 10m resolution. At the narrowest part it is only 820m wide.

Click to see full resolution
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on April 17, 2017, 03:12:28 PM
Breaking News

What was only a Nunatak (Nunataq) a few years ago is now a 7 km2 island of the coast of Kjer Gletscher, I decided to name it Trekanten in Danish (The Triangle) a more correct Greenland name wil be found, a lot of facts about this devellopment can be seen above in this thread:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: crandles on April 17, 2017, 03:32:52 PM
Nice spot.

Do we know if all the snow and ice was removed, whether the coastline would be roughly triangular?

ie is it possible that it may eventually look more like a '^' or some other shape?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: DrTskoul on April 17, 2017, 03:41:47 PM
Breaking News

What was only a Nunatak (Nunataq) a few years ago is now a 7 km2 island of the coast of Kjer Gletscher, I decided to name it Trekanten in Danish (The Triangle) a more correct Greenland name wil be found, a lot of facts about this devellopment can be seen above in this thread:

Do you have the link for the previous picture ??
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on April 17, 2017, 03:51:52 PM
So your forecast from last year proved correct. Another small chapter concluded on the GIS retreat story.
As to the shape of the new island, it seems to me that most of the triangle is old remains of the glacier? Just the left side is the actual island?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on April 17, 2017, 04:09:33 PM
Breaking News

What was only a Nunatak (Nunataq) a few years ago is now a 7 km2 island of the coast of Kjer Gletscher, I decided to name it Trekanten in Danish (The Triangle) a more correct Greenland name wil be found, a lot of facts about this devellopment can be seen above in this thread:

Do you have the link for the previous picture ??

Previous picture?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on April 17, 2017, 04:12:18 PM
So your forecast from last year proved correct. Another small chapter concluded on the GIS retreat story.
As to the shape of the new island, it seems to me that most of the triangle is old remains of the glacier? Just the left side is the actual island?

The island may include other small islands now covered by ice/snow, but if it is one island or a group islands I think they will have the shape of a Triangle.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: crandles on April 17, 2017, 04:23:51 PM
Do you have the link for the previous picture ??

See this thread reply #1, #3, 4, 5, 6, 12, 14, 15, 16, 18, 19, 22, 25, 26, 34, 40, 42, 45, 46, 47

How many do you want?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: DrTskoul on April 17, 2017, 05:28:24 PM
Do you have the link for the previous picture ??

See this thread reply #1, #3, 4, 5, 6, 12, 14, 15, 16, 18, 19, 22, 25, 26, 34, 40, 42, 45, 46, 47

How many do you want?

 :P. Smart aleck..  ;D I thought I was in a different thread with multiple hundreds of messages
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: TerryM on April 19, 2017, 02:03:59 PM
Damn good eye Espen, and I haven't thanked you for your daily charts for some time. Solid, and much appreciated work all around!


Terry
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on April 22, 2017, 02:15:49 AM
Thanks Terry

I really appreciate your comments, and I promise I will relatively soon present a much larger ice sheet released island.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: TerryM on April 22, 2017, 05:17:59 AM
Thanks Terry

I really appreciate your comments, and I promise I will relatively soon present a much larger ice sheet released island.


Have you kept up with Flade Isblink over the years? I remember much discussion back in 2011 or 2012 on the blog, when Independence Fjord was breaking up for the first time. The "grooves" that may have matched up with the Ellesmere Shelves grooves still fascinate.
Far more research back then on my part. So many new and wondrous things to learn. Fast ice that had been in place for millennia, wrenched from the land on high tides.
Your spotting of the new Petermann ice island was a high water mark that we all took pride in.


Sorry for the rambling
Terry
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Tealight on April 22, 2017, 10:25:08 PM
Great spotting Espen!

To celebrate the occasion I add a full 10m resolution image in true colour of Trekanten.

All you need to do now is get a ship, sail to the island and plant your flag ;D
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on May 18, 2017, 05:04:31 PM
Update:

The separation of Steenstrup Gletscher and Kjer Gletscher is almost complete. And the shape of the new island Trekanten is keeping its triangle form:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Tony Mcleod on May 19, 2017, 03:27:07 AM
It look to me the wrinkled ice on the east is a remnant of the floating glacier. What's Madagascar in Dutch?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on May 19, 2017, 03:35:25 AM
It look to me the wrinkled ice on the east is a remnant of the floating glacier. What's Madagascar in Dutch?

I agree. You can make out the eastern edge of the island. Just follow the drop in elevation from the island to the remnant of floating glacier.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on May 25, 2017, 08:11:12 PM
Update:

The demolition of the former ice bridge between Kjer Gletscher and the "New" free island Trekanten is continuing, the triangle shape of Trekanten remains:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on July 01, 2017, 11:45:03 PM
Update:

Dramatic changes at Kjer Gletscher that pobably will result in a completely different and stronger flow of ice from the glacier. The new island Trekanten is still keeping its shape according to its name. And the separation from Steenstrup Gletscher is now almost complete. By the way an interesting part of Greenland to follow, now that the Superstars of the ice sheet are having a rest:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: bairgon on July 02, 2017, 07:07:21 AM
Could you post a link to the glacier on the Sentinel playground please?

Edit: Found it here (http://apps.sentinel-hub.com/sentinel-playground/?lat=75.1802140548077&lng=-57.7961540222168&zoom=13&preset=CUSTOM&layers=B8A,B03,B02&maxcc=100&gain=0.4&gamma=1.0&time=2015-01-01|2017-06-30&cloudCorrection=none&atmFilter=&showDates=true&evalscript=)
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on July 24, 2017, 07:36:26 PM
Now that the Superstars of the Glacier Stage are more or less inactive, we still have action in the Kjer Gletscher and Steenstrup Gletscher region. Within the latest 10 days massive calving events happened and the whole area is being reshaped, the separation between the 2 glaciers is almost complete now and will probably be a fact during this melting season. The newly released island Trekanten is still keeping the triangle shape:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on July 24, 2017, 07:40:19 PM
Espen thank you for keeping us updated. The whole front is crumbling. This will probably speed up both glaciers, as they lose the buttressing of each other and the buttressing of the island.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on July 24, 2017, 10:38:57 PM
A lot of action. I still say the island is going to end up looking like Corsica.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on July 28, 2017, 01:33:28 PM
A very large and one of the largest calving seen / followed in this part of North West Greenland (Baffin Sea / Melville Bay), the area (red color) that is going to leave the ice sheet is the part where Steenstrup Gletscher and Kjer Gletscher joins together for the time being, the area is measured to aprox. 5 - 6 km2. The whole area of Melville Bay is extremely active calving and retreat wise these years, and maybe it is only a coincidence, not very far from here you will find Camp Century?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on July 28, 2017, 03:56:24 PM
Would not be at all surprised if the narrow, leading portion of Kjer Gletcher was to disintegrate completely before the end of the melt season. Having broken free of the island, it is no longer pinned to the land to the north. As Kjer Gletcher continues to advance, the effect is to cause this section of the glacier to separate from the land. You can see this in the GIF. Unsupported on both sides, I can't imagine it surviving long.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on July 28, 2017, 03:59:10 PM
Would also like to point out there is a very small calving of ice that is observable on the remaining ice sheet that is attached to the island. This occurred on the northern edge of the ice at the eastern most point.

There also appears to have been a small calving of this ice on the southeast edge, about midpoint along this face where a section that extended slightly beyond the rest of the face has broken free.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on July 28, 2017, 04:06:33 PM
Espen...

Second compliment of the day but I love all of the threads you have created, tracking individual glaciers. These are a must visit for me (daily) and you, among others, are the key contributors on this forum.

It is not lost on me the amount of energy and effort it takes to provide regular updates on so many glaciers.

Don't get a big head.  ;)
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Jim Hunt on August 19, 2017, 11:49:17 PM
I showed this image to a somewhat skeptical fellow today:

http://GreatWhiteCon.info/2017/08/facts-about-the-arctic-in-august-2017/#comment-222893 (http://GreatWhiteCon.info/2017/08/facts-about-the-arctic-in-august-2017/#comment-222893)
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on August 20, 2017, 03:38:23 PM
A lot of ice has calved off the new island since July 27.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 20, 2017, 10:08:45 PM
If I should should choose the most important story about the Ice Sheet of Greenland (GIS) in 2017.
It would be the collapse and retreat of Kjer Gletscher including the release of the island "Trekanten" (not so triangle shaped anymore), I am sure it will be very interesting to follow Kjer Gletscher and its neigbor glaciers in the near future.
Below you will see an animation over almost 6 months from the site:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: RealityCheck on August 22, 2017, 12:16:00 AM
Espen, why 'most important'? Could you elaborate on the significance of this development please? Is it for the increase in ice loss rate from these particular glaciers it might be expected to cause? Thanks.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on August 22, 2017, 07:31:11 AM
Espen has provided a lot of very interesting coverage on this set of glaciers since 2014. The retreat has been spectacular. To anyone not familiar, I recommend looking at these two posts from upthread:
2014-2015 animation (http://forum.arctic-sea-ice.net/index.php/topic,1209.msg57218.html#msg57218)
Comparison of the region to Jakobshavn, and the 1989 front (http://forum.arctic-sea-ice.net/index.php/topic,1209.msg57484.html#msg57484)
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: RealityCheck on August 22, 2017, 05:08:00 PM
Thanks Oren. In terms of dramatic retreat I certainly see why this has been a very significant story over the last 3-4 years, and especially with the collapse of the ice bridge. It seems to have released a surge of calving.

Many thanks to Espen for the ongoing observation and telling the story.

I guess what I am wondering about is the relative contributions of the larger Greenland glacier drainage basins to ice volume loss, and melting. Where do these 2 glaciers rank in the overall picture, and is it now likely their contribution to SLR will increase?

Is there a thread where this is discussed?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: nukefix on August 23, 2017, 10:33:13 AM
Wonderful work Espen!
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 24, 2017, 05:14:48 PM
Kjer Gletscher update:

Continuing heavy calving and retreat.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on August 24, 2017, 11:16:34 PM
Very impressive. Looks like it will continue to calve aggressively through the fall. There is what appears to be a grounded berg which does not move with this last calving. Can be seen in the bottom center of this image.

There is also some small calving occurring on the edge of the new island.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on August 26, 2017, 04:32:11 PM
Just noticed what appear to be other grounded ice bergs NE (?) of the new island. As the sea ice around them scatters they stay in a fixed position relative to the island.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on August 26, 2017, 05:34:27 PM
I believe the area between the island and the glaciers is relatively shallow?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 14, 2017, 04:12:16 PM
I am aware that some reports claim the total mass balance of the Greenland Ice Sheet is positive for the year 2017, but I am pretty sure this does not include the Melville Bay area inside Baffin Bay, since many of the glaciers in the area retreated visibly for even untrained eyes during 2017.
Most dramatic is the separation of the outlets of Kjer Gletscher and Steenstrup Gletscher, a new island is even born in this proces and continuing retreat of these 2 glaciers is expected during the next couple of months. 
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: gerontocrat on September 14, 2017, 05:34:35 PM
I am aware that some reports claim the total mass balance of the Greenland Ice Sheet is positive for the year 2017, but I am pretty sure this does not include the Melville Bay area inside Baffin Bay,
The DMI data says above average snowfall of nearly 200 gt was dumped on the Greenland ice sheet in the year 1/09/16 - 30/08/17. Melt this year was above average but not by much. Hence it is possible that the greenland ice sheet mass may have increased a bit. The DMI have made no comment about the calving this year. We have to wait for GRACE, n'est ce pas ?

I am speculating on a new regime of increased snowfall, melting and calving emerging as AGW increases. Effect on the N. Atlantic?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 15, 2017, 08:48:01 PM
I even suspect there is a new Island between the New Island ( Former Trekanten ) and the glacier outlets, but who cares?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on September 17, 2017, 07:37:50 PM
I even suspect there is a new Island between the New Island ( Former Trekanten ) and the glacier outlets, but who cares?

I do. Is it under one of the sections of ice that is not moving?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 21, 2017, 07:51:34 PM
Kjer Gletscher continuing heavy calving and retreat and more is to come, what a reshape of the whole site?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: sesyf on September 24, 2017, 10:00:19 AM
This year’s pics seem to have a wrong year?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 24, 2017, 10:32:59 AM
Yes that is right, too busy in the studio that day :-[
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on October 04, 2017, 02:52:34 PM
Will the geometry of the sharp right turn have any effect on the retreat of the calving face?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on March 26, 2018, 09:28:18 PM
Kjer Gletscher:
Beside the extreme retreat over the past year, an impressive thinning can be seen in the red incircled areas, the hidden rocks are popping up like watermarks from below the ice sheet.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on March 27, 2018, 12:01:33 PM
Thanks Espen. This area continues to impress. It seems as if someone turned off the tap and the glaciers are crumbling at their ends.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on March 27, 2018, 07:38:26 PM
Could some of this be a difference in snow cover?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on March 28, 2018, 09:07:19 PM
Could some of this be a difference in snow cover?

That would be strange, since we are not yet in the "real" melting season, and the hidden rocks / nunataks can not be seen that clear late in the melting season August 26 2017, so something happened in between?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Tor Bejnar on March 28, 2018, 09:58:31 PM
I think we see mountain's shadows.  Could we be seeing clouds or their shadows (instead of rocks poking through ice)?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: P-maker on March 29, 2018, 12:53:31 AM
Tor, Espen & SH
I think we are seeing the traces of aeolian activity. The new dark grey streaks are all oriented perpendicular to the predominant SE-ly winds in these tracts, so I am convinced that they are tiny ice ridges blown bare by katabatic winds and the white areas are the shallows in between, where the snow is deposited. Bare rock is black, so we are not there yet.
Cheers P
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on April 18, 2018, 08:56:55 PM
Here is an update on the situation at especially Kjer Gletscher and Steenstrup Gletscher.

This part of the coast in Baffin Sea and more precisely at Melville Bay a bunch of glacier can be found and nowhere in Greenland is the changes of the sea line so extreme, several islands were released from the ice sheet, and an enormous amount of ice was sent of to melt in ocean, resulting in a completely new coast line over the last 20 - 30 years:

A Trekanten Ø  (Triangle Island). The release of this island from the ice sheet, was first reported in this forum (read above) and so named due to the shape when released from the ice sheet, but not so triangle shaped anymore, I admit.

B Lower part of Steenstrup Gletscher, the retreat is more moderate than the neighbor glacier Kjer Gletcher but still very visible.

C Upper part of Kjer Gletscher here is the activity more extreme and even this early in the season heavy calving activity is seen and retreat is obvious for untrained eyes.

C Lower part of Kjer Gletscher, moderate calving activity but retreat can easily be seen.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Shared Humanity on April 18, 2018, 09:54:37 PM
Looks like there may be another island that will eventually be released that sits between the upper and lower part of Kjer Gletscher
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Stephan on July 19, 2018, 09:41:19 PM
...and another island on the western edge of Steenstrup Gletscher will be "born", but this may need some time as Steenstrup Gletscher is not retreating as fast as the Kjer Gletscher.

Wonderful work - I discovered this thread today and I liked reading/watching it. Thanks a million Espen
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on July 19, 2018, 11:10:31 PM
Thanks Stephan :), yes opposite to the most of our planet, islands are born in the arctic, we will see a few being born on the west coast of Greenland and a very large one on the east coast within a few seasons from now. Espen
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Ponderable on July 31, 2019, 11:00:27 AM
Since I followed this thread back then and didn't hear a Long time from Trikanten I looked up the Position using Sentinetal Hub Playground and found that Trekanten is now a few Kilometers away from the calving front, the seperation of upper and lower Kjer Glacier has happend and a few small Islands surfaced...
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on August 01, 2019, 04:38:59 AM
Welcome to the forum Ponderable, with a great first post.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: NotaDenier on September 12, 2019, 11:57:45 AM
Glaciers continue to retreat.

I’m assuming these glaciers are not reverse slope glaciers? Meaning the glacier bed is above sea level.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: NotaDenier on September 12, 2019, 12:05:11 PM
About 50 km east of Kjer glacier is the largest melt lake I have ever seen. It’s at least 5km long.
Has anyone seen one bigger?
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Alphabet Hotel on September 12, 2019, 03:12:41 PM
About 50 km east of Kjer glacier is the largest melt lake I have ever seen. It’s at least 5km long.
Has anyone seen one bigger?

there's a pair of lakes about that size where the main channel of Jakobshavn splits
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on September 23, 2019, 11:56:54 AM
Kjer Gletscher - No text needed:
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: oren on September 23, 2019, 12:03:54 PM
Thank you Espen for the updates on this ongoing collapse.
Does anyone have a detailed map of the bathymetry under the glacier? I wonder what happens next.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Ponderable on April 03, 2020, 09:32:34 AM
quite a calving at the Sverdup Gletscher (from Sentinel playground 2nd of April 2020):

Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Espen on April 03, 2020, 05:32:33 PM
quite a calving at the Sverdup Gletscher (from Sentinel playground 2nd of April 2020):

Correction: That is Nansen Gletscher, Sverdrup Gletscher is the next glacier to the right.
Title: Re: Sverdrup Gletscher / Steenstrup Gletscher/ Kjer Gletscher / North West Greenland
Post by: Ponderable on April 06, 2020, 10:42:28 AM
You are right (of course)!

Thank you for the correction.