collapse

Author Topic: larsen c south pole discussion thread  (Read 868 times)

Offline robomont

  • Hero Member
  • *****
  • Posts: 4280
  • Gold 212
larsen c south pole discussion thread
« on: December 07, 2016, 02:48:32 PM »
larsen c is cracking,its a big ice sheet the size of new jersey and its possible it could break off and cause massive sunamis world wide.then those sunamis could come back and break off more ice.creating multiple megasunamis globally.
for a simi accurate description.these ice shelves are like 10000 ft thick by 50 miles wide by 70 miles long.
if only 10% is above water then this means major displacement of water and possible major techtonic shifts.
if this ice was to beach,it could wreck coast and close ports for years,if the sunamis didnt wipe them out first.
an ice sheet this big has the potential to create sunamis a mile high.i suspect.
any math wiz guys please speak up.
the other forums are trying to keep story on topic but the story is getting shilled hard.
so i run to robos safe space for logical reasoning.
jump on board guys,what yall think?
ive never been much for rules.
being me has its priviledges.

Dumbledore

Offline The Seeker

  • grouchy, old, but inquisitive...
  • Administrator
  • Hero Member
  • *****
  • Posts: 2923
  • Gold 405
  • The one-armed Bandit
Re: larsen c south pole discussion thread
« Reply #1 on: December 07, 2016, 03:58:18 PM »
Will have to see what is going on with Larsen; if it is the dimensions you stated it should just separate, for it is too massive to react quickly...it will probably just float away if it does separate, considering the bulk of the ice sheet is already in the water to begin with...

but that is just my preliminary thoughts will see what is being reported...

Seeker
Look closely: See clearly: Think deeply; and Choose wisely...
Trolls are crunchy and good with ketchup...
Seekers Domain

Offline The Seeker

  • grouchy, old, but inquisitive...
  • Administrator
  • Hero Member
  • *****
  • Posts: 2923
  • Gold 405
  • The one-armed Bandit
Re: larsen c south pole discussion thread
« Reply #2 on: December 07, 2016, 04:35:31 PM »
I couldn't find anything on Larsen C: the articles I read were about the Pine glacier and a twenty mile long rift in it; but there was a 225 square mile chunk that went walkabout last year...

the consensus is that the western ice shelf is going to melt by 2100 and cause a 3 to 4 foot rise in sea level, nothing hinting at anything else...

Seeker
Look closely: See clearly: Think deeply; and Choose wisely...
Trolls are crunchy and good with ketchup...
Seekers Domain

Offline robomont

  • Hero Member
  • *****
  • Posts: 4280
  • Gold 212
ive never been much for rules.
being me has its priviledges.

Dumbledore

Offline The Seeker

  • grouchy, old, but inquisitive...
  • Administrator
  • Hero Member
  • *****
  • Posts: 2923
  • Gold 405
  • The one-armed Bandit
Re: larsen c south pole discussion thread
« Reply #4 on: December 07, 2016, 05:42:53 PM »
From JPL...

http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA20894

Quote
These images from NASA's Terra satellite shows a large crack in the Larsen C shelf that has grown by another 13 miles in the past six months. Larsen C is the fourth largest ice shelf in Antarctica.

Project MIDAS, a United Kingdom-based group that studies the Larsen Ice Shelf in Antarctica, reported Aug. 18, 2016, that a large crack in the Larsen C shelf has grown by another 13 miles (22 kilometers) in the past six months. The crack is now more than 80 miles (130 kilometers) long. Larsen C is the fourth largest ice shelf in Antarctica, with an area of about 19,300 square miles (50,000 square kilometers), greater than the size of Maryland. Computer modeling by Project MIDAS predicts that the crack will continue to grow and eventually cause between nine and twelve percent of the ice shelf to collapse, resulting in the loss of 2,300 square miles (6,000 square kilometers) of ice -- more than the area of Delaware. This follows the collapse of the Larsen B shelf in 2002 and the Larsen A shelf in 1995, which removed about 1,255 square miles (3,250 square kilometers) and 580 square miles (1,500 square kilometers) of ice, respectively.

The Multiangle Imaging SpectroRadiometer (MISR) instrument aboard NASA's Terra satellite flew over Larsen C on Aug. 22, 2016. The MISR instrument views Earth with nine cameras pointed at different angles, which provides information about the texture of the surface. On the left is a natural-color image of the shelf from MISR's vertical-viewing camera. Antarctica is slowly emerging from its polar night, and the low light gives the scene a bluish tint. The Larsen C shelf is on the left, while thinner sea ice is present on the right. A variety of cracks are visible in the Larsen C shelf, all appearing roughly the same. The image is about 130 by 135 miles (210 by 220 kilometers) in size.

On the right is a composite image made by combining data from MISR's 46-degree backward-pointing camera (plotted as blue), the vertical-pointing camera (plotted as green), and the 46-degree forward-pointing camera (plotted as red). This has the effect of highlighting surface roughness; smooth surfaces appear as blue-purple, while rough surfaces appear as orange. Clouds near the upper left appear multi-hued because their elevation above the surface causes the different angular views to be slightly displaced. In this composite, the difference between the rough sea ice and the smoother ice shelf is immediately apparent. An examination of the cracks in the ice shelf shows that the large crack Project MIDAS is tracking (indicated by an arrow) is orange in color, demonstrating that it is actively growing. You can compare this image to a similar one of the Larsen B Ice Shelf after its collapse in 2002 (http://www-misr.jpl.nasa.gov/multimedia/collectionImagery/?ImageID=233).

Larsen A and Larsen B have already collapsed away with no major significant impact...

Seeker
Look closely: See clearly: Think deeply; and Choose wisely...
Trolls are crunchy and good with ketchup...
Seekers Domain

Offline robomont

  • Hero Member
  • *****
  • Posts: 4280
  • Gold 212
Re: larsen c south pole discussion thread
« Reply #5 on: December 07, 2016, 07:03:37 PM »
larsen c is that entire blue,larson b is that little chunk,larson c is like 20 times bigger or more.if its in the water already then ok,but if its on land,then it may give us issues.imho
ive never been much for rules.
being me has its priviledges.

Dumbledore

Offline zorgon

  • Administrator
  • Hero Member
  • *****
  • Posts: 19909
  • Gold 879
Re: larsen c south pole discussion thread
« Reply #6 on: December 07, 2016, 07:49:42 PM »
I couldn't find anything on Larsen C: the articles I read were about the Pine glacier and a twenty mile long rift in it; but there was a 225 square mile chunk that went walkabout last year...

I thought it was called LARSON B  :P

Larsen B Ice Shelf Collapses in Antarctica
Posted: 18 March 2002




http://www.thelivingmoon.com/41pegasus/02files/Antarctic_Ice_Shelf_Collapses_March_2002.html

Offline The Seeker

  • grouchy, old, but inquisitive...
  • Administrator
  • Hero Member
  • *****
  • Posts: 2923
  • Gold 405
  • The one-armed Bandit
Re: larsen c south pole discussion thread
« Reply #7 on: December 07, 2016, 08:32:31 PM »
Larsen A and B both already went walkabout, m'lord; and Robo, Larsen B was 1300 square miles when it went bye bye... A glacier is on land, a shelf is already on the water...

Seeker
« Last Edit: December 07, 2016, 08:46:48 PM by the seeker »
Look closely: See clearly: Think deeply; and Choose wisely...
Trolls are crunchy and good with ketchup...
Seekers Domain

Offline robomont

  • Hero Member
  • *****
  • Posts: 4280
  • Gold 212
Re: larsen c south pole discussion thread
« Reply #8 on: December 08, 2016, 12:03:40 AM »
wow,thanks z,that was humongous.the gif is perfect.
thankyou seeker,i didnt know that definition.
my safe space helped me : )
ive never been much for rules.
being me has its priviledges.

Dumbledore

 


Wal-Mart.com USA, LLC
affiliate_link
Free Click Tracking
Wal-Mart.com USA, LLC

* Recent Posts

Re: More Jobs Down the Drain Sam's Club Closed 63 Stores today by Littleenki
[Today at 12:58:13 PM]


Re: 411 by Gigas
[Today at 12:40:19 PM]


Re: More Jobs Down the Drain Sam's Club Closed 63 Stores today by Gigas
[Today at 12:14:07 PM]


Re: Fake Casino Hides Massive Underground Construction of Super Secret Subway... by Gigas
[Today at 11:53:15 AM]


Re: Penney for your thoughts by The Seeker
[Today at 11:34:56 AM]


Re: Penney for your thoughts by micjer
[Today at 11:07:32 AM]


Penney for your thoughts by Sgt.Rocknroll
[Today at 04:26:12 AM]


Re: HAPPY BIRTHDAY, Sarge by Sgt.Rocknroll
[Today at 03:43:49 AM]


Re: HAPPY BIRTHDAY, Sarge by Smilingtree
[January 16, 2018, 06:56:20 PM]


Re: HAPPY BIRTHDAY, Sarge by thorfourwinds
[January 16, 2018, 05:48:49 PM]


Re: HAPPY BIRTHDAY, Sarge by Sgt.Rocknroll
[January 16, 2018, 04:26:41 PM]


Re: HAPPY BIRTHDAY, Sarge by ArMaP
[January 16, 2018, 07:07:50 AM]


HAPPY BIRTHDAY, Sarge by The Seeker
[January 16, 2018, 05:40:14 AM]


Re: Music You Love by ArMaP
[January 15, 2018, 02:13:35 PM]


Re: Oprah Winfrey for president: a wild idea that just got dramatically more real by micjer
[January 15, 2018, 12:24:47 PM]


Re: Oprah Winfrey for president: a wild idea that just got dramatically more real by Somamech
[January 15, 2018, 08:22:57 AM]


Re: The Kennedy Detail: JFK's Secret Service Agents Break Their Silence by A51Watcher
[January 14, 2018, 01:03:50 PM]


Re: Oprah Winfrey for president: a wild idea that just got dramatically more real by petrus4
[January 14, 2018, 11:52:41 AM]


Re: The Kennedy Detail: JFK's Secret Service Agents Break Their Silence by spacemaverick
[January 13, 2018, 07:57:56 PM]


Re: Oprah Winfrey for president: a wild idea that just got dramatically more real by Shasta56
[January 13, 2018, 06:11:48 PM]