Main Page | Report this Page
Science Forum Index  »  Physics Forum  »  Antarctic's ice 'melting faster'
Page 1 of 2    Goto page 1, 2  Next

Antarctic's ice 'melting faster'

Author Message
CWatters
Posted: Wed Feb 02, 2005 2:18 pm
Guest
http://news.bbc.co.uk/1/hi/uk/4228411.stm

BBC News
Antarctic's ice 'melting faster'

A team of UK researchers claims to have new evidence that global warming is
melting the ice in Antarctica faster than had previously been thought.
Scientists from the British Antarctic Survey (Bas) say the rise in sea
levels around the world caused by the melting may have been under-estimated.
It is thought that over 13,000 sq km of sea ice in the Antarctic Peninsula
has been lost over the last 50 years. <snip>

The Larsen A ice shelf, which measured 1,600 sq km, broke off in 1995. The
1,100 sq km Wilkins ice shelf fell off in 1998 and the 13,500 sq km Larsen B
dropped away in 2002.
 
Franz Heymann
Posted: Wed Feb 02, 2005 2:18 pm
Guest
"Gflkw" <nospam@nospam.com> wrote in message
news:36ct0nF4u9f1pU1@individual.net...
[quote:cf6cc1848a]
"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:KH9Md.1788$nf4.97376@phobos.telenet-ops.be...
http://news.bbc.co.uk/1/hi/uk/4228411.stm

BBC News
Antarctic's ice 'melting faster'

A team of UK researchers claims to have new evidence that global
warming
is
melting the ice in Antarctica faster than had previously been
thought.
Scientists from the British Antarctic Survey (Bas) say the rise in
sea
levels around the world caused by the melting may have been
under-estimated.
It is thought that over 13,000 sq km of sea ice in the Antarctic
Peninsula
has been lost over the last 50 years. <snip

The Larsen A ice shelf, which measured 1,600 sq km, broke off in
1995. The
1,100 sq km Wilkins ice shelf fell off in 1998 and the 13,500 sq
km Larsen
B
dropped away in 2002.



How much of a temperature difference does that account for?
so many million cubic feet of ice at temperature A, devolves in so
many
trillions cubic feet water at temperature B.a

0.0000001 degree C temperature rise of the earth??

Microscopic difference, global warming has nothing to do with it.
[/quote:cf6cc1848a]
You are singing from the wrong song sheet.
Global warming is causing the breaking up of the ice sheets, not the
other way round as you seem to think.
The consequence is tha cities like Venice, and possibly London, have
had it.

Franz
 
Guest
Posted: Wed Feb 02, 2005 2:18 pm
Androcles <Androcles@ myplace.org> wrote:

[quote:b32c76186d]"Mike" <eleatis@yahoo.gr> wrote in message
news:1107384686.034521.27530@f14g2000cwb.googlegroups.com...

Does this mean no more gangs in the Bronx?

Seriously, when water freezes it expands. I expect the sea level to
drop if Antarctic ice melts. Also, bring better clima stability.
Mike

Seriously, if you dump ice cubes in your scotch and soda, the liquid
level rises as the cube displaces its own mass of soda (but you don't
get more scotch).
Androcles
[/quote:b32c76186d]
Most of the Antarctic's ice is already in the water.

--
Jim Pennino

Remove -spam-sux to reply.
 
Androcles
Posted: Wed Feb 02, 2005 2:56 pm
Guest
"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:KH9Md.1788$nf4.97376@phobos.telenet-ops.be...
[quote:8bd92b540c]http://news.bbc.co.uk/1/hi/uk/4228411.stm

BBC News
Antarctic's ice 'melting faster'

A team of UK researchers claims to have new evidence that global
warming is
melting the ice in Antarctica faster than had previously been thought.
Scientists from the British Antarctic Survey (Bas) say the rise in sea
levels around the world caused by the melting may have been
under-estimated.
It is thought that over 13,000 sq km of sea ice in the Antarctic
Peninsula
has been lost over the last 50 years. <snip
[/quote:8bd92b540c]
Oh yeah... sea ice in the peninsula...

Where did they bury the survivors?

Androcles




[quote:8bd92b540c]
The Larsen A ice shelf, which measured 1,600 sq km, broke off in 1995.
The
1,100 sq km Wilkins ice shelf fell off in 1998 and the 13,500 sq km
Larsen B
dropped away in 2002.

[/quote:8bd92b540c]
 
Gflkw
Posted: Wed Feb 02, 2005 3:54 pm
Guest
"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:KH9Md.1788$nf4.97376@phobos.telenet-ops.be...
[quote:240ce58f92]http://news.bbc.co.uk/1/hi/uk/4228411.stm

BBC News
Antarctic's ice 'melting faster'

A team of UK researchers claims to have new evidence that global warming
is
melting the ice in Antarctica faster than had previously been thought.
Scientists from the British Antarctic Survey (Bas) say the rise in sea
levels around the world caused by the melting may have been
under-estimated.
It is thought that over 13,000 sq km of sea ice in the Antarctic Peninsula
has been lost over the last 50 years. <snip

The Larsen A ice shelf, which measured 1,600 sq km, broke off in 1995. The
1,100 sq km Wilkins ice shelf fell off in 1998 and the 13,500 sq km Larsen
B
dropped away in 2002.


[/quote:240ce58f92]
How much of a temperature difference does that account for?
so many million cubic feet of ice at temperature A, devolves in so many
trillions cubic feet water at temperature B.a

0.0000001 degree C temperature rise of the earth??

Microscopic difference, global warming has nothing to do with it.
 
CWatters
Posted: Wed Feb 02, 2005 4:13 pm
Guest
"Gflkw" <nospam@nospam.com> wrote in message
news:36ct0nF4u9f1pU1@individual.net...

[quote:3d0c6b3fa9]How much of a temperature difference does that account for?
[/quote:3d0c6b3fa9]
Does what account for?

[quote:3d0c6b3fa9]so many million cubic feet of ice at temperature A, devolves in so many
trillions cubic feet water at temperature B.a
[/quote:3d0c6b3fa9]
Actually makes the sea slightly colder.... But what does it do to sea
levels?
 
CWatters
Posted: Wed Feb 02, 2005 4:23 pm
Guest
"Androcles" <Androcles@ MyPlace.org> wrote in message
news:AfaMd.652$89.40@fe3.news.blueyonder.co.uk...

[quote:395d5fb38a]It is thought that over 13,000 sq km of sea ice in the Antarctic
Peninsula
has been lost over the last 50 years. <snip

Oh yeah... sea ice in the peninsula...
[/quote:395d5fb38a]
About half the area called "the peninsula" is actually an ice shelf. These
ice sheets around antarctica average more than a mile thick.
 
robert j. kolker
Posted: Wed Feb 02, 2005 5:39 pm
Guest
Franz Heymann wrote:

[quote:258d90a4ff]
You are singing from the wrong song sheet.
Global warming is causing the breaking up of the ice sheets, not the
other way round as you seem to think.
The consequence is tha cities like Venice, and possibly London, have
had it.
[/quote:258d90a4ff]
If they keep the flood locks open, Venice will be swamped. If they close
the locks the circulation of the waters around venice will be halted and
Venice will become a swamp, smells and all. You may be right on this

Arrivaderce Venice! Itsa beena a nica to known you.

There are worse things that can happen. If the Atlantic side of La Palma
in the Canaries slides into the ocean in 8 hours, waves up to 200 metres
high will swamp the East Coast of the North America from New Brunswick
to Florida. The water will rush 15 miles inland where there is no high
ground to stop it. Boston, New York, The New Jersey Coast and down to
Wasington and further south to Miami will be flooded out. It will be a
disaster. And it is just a matter of time.

Bob Kolker
 
Guest
Posted: Wed Feb 02, 2005 5:49 pm
"o?in" <oin@ragnarok.com> wrote:
[quote:f4f34479a1]Most of the Antarctic's ice is already in the water.

Not most, I am sure.
[/quote:f4f34479a1]
I should have said a lot of the antarctic and all the arctic.

--
Jim Pennino

Remove -spam-sux to reply.
 
Mike
Posted: Wed Feb 02, 2005 5:51 pm
Guest
robert j. kolker wrote:
[quote:dd3edf5c62]Franz Heymann wrote:


You are singing from the wrong song sheet.
Global warming is causing the breaking up of the ice sheets, not
the
other way round as you seem to think.
The consequence is tha cities like Venice, and possibly London,
have
had it.

If they keep the flood locks open, Venice will be swamped. If they
close
the locks the circulation of the waters around venice will be halted
and
Venice will become a swamp, smells and all. You may be right on this

Arrivaderce Venice! Itsa beena a nica to known you.

There are worse things that can happen. If the Atlantic side of La
Palma
in the Canaries slides into the ocean in 8 hours, waves up to 200
metres
high will swamp the East Coast of the North America from New
Brunswick
to Florida. The water will rush 15 miles inland where there is no
high
ground to stop it. Boston, New York, The New Jersey Coast and down to

Wasington and further south to Miami will be flooded out. It will be
a
disaster. And it is just a matter of time.

Bob Kolker
[/quote:dd3edf5c62]
Does this mean no more gangs in the Bronx?

Seriously, when water freezes it expands. I expect the sea level to
drop if Antarctic ice melts. Also, bring better clima stability.
Mike
 
Androcles
Posted: Wed Feb 02, 2005 6:04 pm
Guest
"Mike" <eleatis@yahoo.gr> wrote in message
news:1107384686.034521.27530@f14g2000cwb.googlegroups.com...

[quote:ab6089596e]Does this mean no more gangs in the Bronx?

Seriously, when water freezes it expands. I expect the sea level to
drop if Antarctic ice melts. Also, bring better clima stability.
Mike
[/quote:ab6089596e]
Seriously, if you dump ice cubes in your scotch and soda, the liquid
level rises as the cube displaces its own mass of soda (but you don't
get more scotch).
Androcles
 
Philip Holman
Posted: Wed Feb 02, 2005 6:20 pm
Guest
"Mike" <eleatis@yahoo.gr> wrote in message
news:1107384686.034521.27530@f14g2000cwb.googlegroups.com...
[quote:2d0ef92980]
robert j. kolker wrote:
Franz Heymann wrote:


You are singing from the wrong song sheet.
Global warming is causing the breaking up of the ice sheets, not
the
other way round as you seem to think.
The consequence is tha cities like Venice, and possibly London,
have
had it.

If they keep the flood locks open, Venice will be swamped. If they
close
the locks the circulation of the waters around venice will be halted
and
Venice will become a swamp, smells and all. You may be right on this

Arrivaderce Venice! Itsa beena a nica to known you.

There are worse things that can happen. If the Atlantic side of La
Palma
in the Canaries slides into the ocean in 8 hours, waves up to 200
metres
high will swamp the East Coast of the North America from New
Brunswick
to Florida. The water will rush 15 miles inland where there is no
high
ground to stop it. Boston, New York, The New Jersey Coast and down to

Wasington and further south to Miami will be flooded out. It will be
a
disaster. And it is just a matter of time.

Bob Kolker

Does this mean no more gangs in the Bronx?

Seriously, when water freezes it expands. I expect the sea level to
drop if Antarctic ice melts. Also, bring better clima stability.
Mike
[/quote:2d0ef92980]
A floating ice cube displaces its own weight and when it melts the water
level stays the same. In the case of ice supported by a land mass, there
will be a rise in sea level when it slides into the ocean and melts.

Phil H
 
aflky
Posted: Wed Feb 02, 2005 6:39 pm
Guest
"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:7obMd.1922$zg5.271465@phobos.telenet-ops.be...
[quote:514d799863]
"Gflkw" <nospam@nospam.com> wrote in message
news:36ct0nF4u9f1pU1@individual.net...

How much of a temperature difference does that account for?

Does what account for?

so many million cubic feet of ice at temperature A, devolves in so many
trillions cubic feet water at temperature B.a

Actually makes the sea slightly colder.... But what does it do to sea
levels?


water surface area is about 361,800,000 km^2[/quote:514d799863]

the part that broke off is 13,000 km^2 about 0.16 km high or 2,171 cubic
km.

dumped into ocean and spread out is 2,171 / 361,800,000 = 0.000006 km or
about
6 mm, which is about 1/4 of an inch

you need at least 100 times that to have an impact, even more to flush out
London.
 
ošin
Posted: Wed Feb 02, 2005 10:40 pm
Guest
[quote:f319d39c60]Seriously, when water freezes it expands. I expect the sea level to
drop if Antarctic ice melts. Also, bring better clima stability.
[/quote:f319d39c60]
Nope. Sea levels would rise. Sea ice has no effect when it melts, but land
ice will run off into the sea when it melts.
 
ošin
Posted: Wed Feb 02, 2005 10:40 pm
Guest
[quote:297d310882]Most of the Antarctic's ice is already in the water.
[/quote:297d310882]
Not most, I am sure.
 
 
Page 1 of 2    Goto page 1, 2  Next
All times are GMT - 5 Hours
The time now is Wed Nov 25, 2009 8:51 pm