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Author Topic: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland  (Read 10238 times)

Espen

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Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« on: August 07, 2014, 09:37:25 PM »
Another one of the great glaciers of Greenland, Kangerdluqssuaq Gletscher is showing some sizable calving:
« Last Edit: August 17, 2014, 12:07:10 AM by Espen »
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Espen

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #1 on: August 17, 2014, 06:54:52 PM »
Kangerdluqssuaq Gletscher update:
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Espen

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #2 on: March 22, 2015, 02:47:56 PM »
43 year update Kangerdluqssuaq Gletscher, first image in the animation show the letters T= Thinning and R= Retreat: All images are from September 1972 and 2014.
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Espen

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #3 on: March 22, 2015, 05:48:29 PM »
The debris left over from the calvings at Kangerdluqssuaq Gletscher are pretty impresive, this "tooth" is about 1 km (1000 m) thick:
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Shared Humanity

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #4 on: March 22, 2015, 07:52:29 PM »
As always....thank you for these wonderful detailed views of the destruction.

Espen

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #5 on: March 29, 2015, 10:11:28 AM »
The speed is up at Kangerdluqssuaq Gletscher, moving at 23 meters per 24 hrs between March 3 and March 28 2015:
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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #6 on: March 29, 2015, 04:37:40 PM »
Is that an ice cap on the northeast side of the calving front? If so, would its ongoing melt cause a speedup of the glacier as the cap  recedes from the glacier?

Espen

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #7 on: March 29, 2015, 04:44:07 PM »
Is that an ice cap on the northeast side of the calving front? If so, would its ongoing melt cause a speedup of the glacier as the cap  recedes from the glacier?

Without knowing, my guess it is pretty grounded there?
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Espen

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #8 on: April 06, 2015, 06:21:57 PM »
Kangerdluqssuaq Gletscher is really on the move these days, moving between 35 and 40 meters / 24 hrs. on average between March 28 and April 4 2015:
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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #9 on: April 07, 2015, 01:54:09 PM »
Looking at  this latest image, I am still curious about the ice that is north of the glacier. It looks  as if  this  ice cap? has receded from the glacier where it comes into contact with the water. What appears to be an area of open  water and melange is adjacent to this  ice. It also looks as if the calving front of the glacier is very near where the ice cap? has pulled away from the glacier. Could we expect this edge of the grounded ice cap?, nearest the water, to continue  to  recede  and the calving front to follow?

oren

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #10 on: April 07, 2015, 02:49:11 PM »
35-40 m/day sounds to me quite impressive, especially at this time of year. Is there any comparison to past speeds?

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #11 on: April 07, 2015, 04:18:09 PM »
Looking at  this latest image, I am still curious about the ice that is north of the glacier. It looks  as if  this  ice cap? has receded from the glacier where it comes into contact with the water. What appears to be an area of open  water and melange is adjacent to this  ice. It also looks as if the calving front of the glacier is very near where the ice cap? has pulled away from the glacier. Could we expect this edge of the grounded ice cap?, nearest the water, to continue  to  recede  and the calving front to follow?

You can see the "icecap" receded over the last 43 years here: http://forum.arctic-sea-ice.net/index.php/topic,949.msg48349.html#msg48349
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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #12 on: April 07, 2015, 04:21:26 PM »
35-40 m/day sounds to me quite impressive, especially at this time of year. Is there any comparison to past speeds?

Yes it is an impressive speed especially considering the season. I am also suspecting it to have one of the greatest glacier-ice-thickness in Greenland.
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oren

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #13 on: April 07, 2015, 11:26:04 PM »
According to a 2012 paper by Rignot the speed of Kangerdluqssuaq in 2008-9 was 8.1 km/y, translating to 22 m/day on average

Espen

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #14 on: April 08, 2015, 06:07:02 AM »
According to a 2012 paper by Rignot the speed of Kangerdluqssuaq in 2008-9 was 8.1 km/y, translating to 22 m/day on average

Maybe that is old news now.
Average / day / year probably is different than average / day / week
« Last Edit: April 08, 2015, 06:33:10 AM by Espen »
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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #15 on: April 08, 2015, 01:21:58 PM »
I recall seeing similar numbers (8,1k a year) from a 2014 paper linked in the Jakobshavn thread. Maybe its the same measurements, but 35-40 m/day at this time of the year still seems very fast. About a doubling in annual average speed I would presume.

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #16 on: April 11, 2015, 09:54:15 PM »
Kangerdluqssuaq Gletscher continues its extreme speed:
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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #17 on: May 06, 2015, 09:24:51 PM »
Kangerdluqssuaq Gletscher is preparing a serious calving:
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ghoti

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #18 on: September 06, 2015, 02:21:09 AM »
Some people returning to Sweden from the Petermann expedition posted this photo of  Kangerdluqssuaq Gletscher

https://instagram.com/p/7RLvliD5LW/

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #19 on: January 21, 2017, 07:03:09 PM »
Kangerdluqssuaq Gletscher update, despite the traditional hibernation for glaciers:

Click on image to enlarge and animate!
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DrTskoul

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #20 on: January 21, 2017, 07:48:04 PM »
Let the calvings proceed...

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #21 on: January 21, 2017, 07:51:12 PM »
Espen. On that animation, what is the nature of the much darker ice that is north of the rapidly moving and dramatically calving ice stream? You can see it calving as well but it seems to be behaving differently.

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #22 on: January 21, 2017, 08:08:25 PM »
Espen. On that animation, what is the nature of the much darker ice that is north of the rapidly moving and dramatically calving ice stream? You can see it calving as well but it seems to be behaving differently.

that ice seams to be blocked by the topography at it's end on the very right of the image, while the mainstream got detached and flows unhindered.  it's some kind of a narrows.
« Last Edit: January 21, 2017, 10:01:06 PM by magnamentis »

Espen

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #23 on: January 21, 2017, 08:55:22 PM »
Espen. On that animation, what is the nature of the much darker ice that is north of the rapidly moving and dramatically calving ice stream? You can see it calving as well but it seems to be behaving differently.

That is bedrock ice!
« Last Edit: January 21, 2017, 09:10:48 PM by Espen »
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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #24 on: January 21, 2017, 10:43:38 PM »
Espen. On that animation, what is the nature of the much darker ice that is north of the rapidly moving and dramatically calving ice stream? You can see it calving as well but it seems to be behaving differently.

That is bedrock ice!

Wow! That has to be very thick.

iwantatr8

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #25 on: August 22, 2018, 01:23:29 PM »

oren

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #26 on: August 22, 2018, 02:06:02 PM »
Wow. That's quite the retreat, ~3km.
An interesting tidbit - there appears to be more snow in August now than there was in January last year.

Eli81

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #27 on: August 22, 2018, 02:18:59 PM »

An interesting tidbit - there appears to be more snow in August now than there was in January last year.

I noticed this as well.

Stephan

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #28 on: August 22, 2018, 06:39:45 PM »
Thank you iwantatr for this animation. It is quite a big difference.
It is too late just to be concerned about Climate Change

sidd

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Re: Kangerdluqssuaq Gletscher / Kangerdluqssuaq / East Greenland
« Reply #29 on: January 10, 2019, 07:14:26 AM »
Interesting paper at cryosphere-discuss tying recent retreat to warming waters in the fjord. Warns that grounding line is about to retreat over a big hole. "Runaway retreat" is the term used.

Open access, read all about it:

https://www.the-cryosphere-discuss.net/tc-2018-260/

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