East Antarctica, Long Stable, Is Now Losing Ice
Harry Hope
From TIME, 11/24/09:
http://www.time.com/time/health/article/0,8599,1942828,00.html
East Antarctica, Long Stable, Is Now Losing Ice
By Michael D. Lemonick
In this Nov. 16, 2009 photo, an iceberg is seen at Sandy Bay on
Macquarie Island's east coast, in the Southern Ocean 1,500 kilometers
(930 miles) southeast of Tasmania, Australia.
It is very rare to see icebergs from Macquarie Island and is uncommon
to find icebergs in this general region
While the Earth has been warming overall, the giant East Antarctic Ice
Sheet � which holds about five times as much ice as West Antarctica
and Greenland combined � has actually been growing in size.
That's because East Antarctica is far too cold, even in summer, for
any appreciable melting to happen.
And since a warmer world means more precipitation, any extra snow that
falls on East Antarctica stays there indefinitely.
Or at least, that's how things have gone until recently.
But a new study in the journal Nature Geoscience suggests that this
growth spurt may have come to an end.
Starting in about 2006, says lead author Jianli Chen, of the Center
for Space Research at the University of Texas at Austin, East
Antarctica started declining, just like the world's other great ice
sheets.
"The amount [of decline] right now isn't very big, but the trend is
alarming," he says.
It's alarming because the behavior of ice sheets is the biggest
variable in estimates of how sea level will rise over the next century
� the faster ice sheets melt, the more sea level will rise.
As recently as 2007, the Intergovernmental Panel on Climate Change
(IPCC) admitted in its fourth major climate assessment report that
there simply wasn't enough data to make a useful projection.
But since then, satellite observations have shown that the ice in both
Greenland and West Antarctica is sliding into the sea faster than
anyone expected.
And now it's happening in East Antarctica as well.
The new evidence comes from the Gravity Recovery And Climate
Experiment, or GRACE.
It's a pair of satellites that circle the planet in tandem, moving
slightly closer together or farther apart as they fly over regions of
higher or lower local gravity � higher over a mountain range, for
example, lower over a crater.
Starting in 2006, GRACE began to detect lower gravity over East
Antarctica, suggesting that the ice sheet was getting less massive.
Exactly how much isn't clear:
the best guess is about 57 billion tons per year, but with a huge
uncertainty of plus or minus 52 billion.
That's because Chen and his colleagues had to factor in something
called Post Glacial Rebound, or PGR:
during the last Ice Age, Antarctica had far more ice than it does
today, and all that ice weighed down the underlying bedrock.
With some of the ice gone, the rock is literally rising back up, like
a mattress regaining its shape when a sleeper gets off � and as the
depressed rock rises, so does the gravity it exerts on GRACE.
"There's large uncertainty in the models of PGR," says Chen, so
there's a corresponding uncertainty in how much ice is being lost."
But it isn't the amount that matters so much at this point, says
Konrad Steffen, director of the University of Colorado's Cooperative
Institute for Research in Environmental Sciences.
"It's that there's been a major change from stability to ice loss."
As for what's causing East Antarctica to lose ice, it's probably much
the same phenomenon as in West Antarctica and Greenland.
Warming ocean temperatures are melting or weakening the ice where
glaciers flow into the sea, and with less ice grinding on the sea
floor, there's less friction.
That lets ice from the interior flow seaward more quickly.
"If you have ice loss," says Steffen, "it has to do with an increase
in ice velocity."
What that means for the future is unclear.
Nobody really imagines that the whole East Antarctic ice sheet will
slide into the sea anytime in the near future � and that's good
because if it did, sea level would go up 200 ft. or more.
But with current projections hovering at about 3 ft. of sea-level rise
by 2100 without any contribution from East Antarctica, the trend is
worrisome.
It isn't just sea level rise people have to worry about, either:
just yesterday, glaciologists reported that at least 100 icebergs, and
possibly more, are headed toward New Zealand, where they could pose a
hazard to shipping.
The bergs are fragments of a giant ice floe that broke off the frozen
continent last year � one more example of the ominous fact that what
happens in Antarctica doesn't stay in Antarctica.
_____________________________________________________
Harry
Bret Cahill
Bret Cahill
mrbawana2u
> From TIME,
[yawn/flush]
Lib-turd-retards...science by press release.
bo^n-o
GIGO, GIGO It's Off To Work We Go!
Don't panic!
It's only a computer model.
That was just a warning rumble.
Now the avalanche of pre-Copenhagen orchestrated hysteria is upon us.
Louise Gray, the Telegraph's chief hysteria correspondent, recounts the
terrible future that awaits us if we fail to return to a Stone Age
lifestyle. It is all in a report produced by (no, don't laugh) the Met
Office under the Aegis of the EU.
What a combination!
It's all produced by computer models with feedback.
An engineering model is invalidated by just one guessed parameter or
coefficient.
In climate science they are all guessed.
Would you fly in a plane designed with the aid of a model in which all the
parameters are guessed?
But that's not all. We now have the benefit of a computer game, featuring
genuine CELEBRITIES.
In the dying throes of our democracy, the divide between rulers and ruled
appears to be as wide as during the worst excesses of absolute monarchy.
For those of us in the infidel majority who would appreciate some good news
for a change, here it is.
http://wattsupwiththat.com/2009/11/16/monckton-climate-change-video-goes-viral/
"Harry Hope" <riv...@ix.netcom.com> wrote in message
news:ke7pg5hlqrv82s6uo...@4ax.com...
>
> From TIME, 11/24/09:
> http://www.time.com/time/health/article/0,8599,1942828,00.html
>
> East Antarctica, Long Stable, Is Now Losing Ice
>
> By Michael D. Lemonick
>
> In this Nov. 16, 2009 photo, an iceberg is seen at Sandy Bay on
> Macquarie Island's east coast, in the Southern Ocean 1,500 kilometers
> (930 miles) southeast of Tasmania, Australia.
>
> It is very rare to see icebergs from Macquarie Island and is uncommon
> to find icebergs in this general region
>
> While the Earth has been warming overall, the giant East Antarctic Ice
> Sheet - which holds about five times as much ice as West Antarctica
> and Greenland combined - has actually been growing in size.
>
> That's because East Antarctica is far too cold, even in summer, for
> any appreciable melting to happen.
>
> And since a warmer world means more precipitation, any extra snow that
> falls on East Antarctica stays there indefinitely.
>
> Or at least, that's how things have gone until recently.
>
> But a new study in the journal Nature Geoscience suggests that this
> growth spurt may have come to an end.
>
> Starting in about 2006, says lead author Jianli Chen, of the Center
> for Space Research at the University of Texas at Austin, East
> Antarctica started declining, just like the world's other great ice
> sheets.
>
> "The amount [of decline] right now isn't very big, but the trend is
> alarming," he says.
>
> It's alarming because the behavior of ice sheets is the biggest
> variable in estimates of how sea level will rise over the next century
> - the faster ice sheets melt, the more sea level will rise.
>
> As recently as 2007, the Intergovernmental Panel on Climate Change
> (IPCC) admitted in its fourth major climate assessment report that
> there simply wasn't enough data to make a useful projection.
>
> But since then, satellite observations have shown that the ice in both
> Greenland and West Antarctica is sliding into the sea faster than
> anyone expected.
>
> And now it's happening in East Antarctica as well.
>
> The new evidence comes from the Gravity Recovery And Climate
> Experiment, or GRACE.
>
> It's a pair of satellites that circle the planet in tandem, moving
> slightly closer together or farther apart as they fly over regions of
> higher or lower local gravity - higher over a mountain range, for
> example, lower over a crater.
>
> Starting in 2006, GRACE began to detect lower gravity over East
> Antarctica, suggesting that the ice sheet was getting less massive.
>
> Exactly how much isn't clear:
>
> the best guess is about 57 billion tons per year, but with a huge
> uncertainty of plus or minus 52 billion.
>
> That's because Chen and his colleagues had to factor in something
> called Post Glacial Rebound, or PGR:
>
> during the last Ice Age, Antarctica had far more ice than it does
> today, and all that ice weighed down the underlying bedrock.
>
> With some of the ice gone, the rock is literally rising back up, like
> a mattress regaining its shape when a sleeper gets off - and as the
> depressed rock rises, so does the gravity it exerts on GRACE.
>
> "There's large uncertainty in the models of PGR," says Chen, so
> there's a corresponding uncertainty in how much ice is being lost."
>
> But it isn't the amount that matters so much at this point, says
> Konrad Steffen, director of the University of Colorado's Cooperative
> Institute for Research in Environmental Sciences.
>
> "It's that there's been a major change from stability to ice loss."
>
> As for what's causing East Antarctica to lose ice, it's probably much
> the same phenomenon as in West Antarctica and Greenland.
>
> Warming ocean temperatures are melting or weakening the ice where
> glaciers flow into the sea, and with less ice grinding on the sea
> floor, there's less friction.
>
> That lets ice from the interior flow seaward more quickly.
>
> "If you have ice loss," says Steffen, "it has to do with an increase
> in ice velocity."
>
> What that means for the future is unclear.
>
> Nobody really imagines that the whole East Antarctic ice sheet will
> slide into the sea anytime in the near future - and that's good
> because if it did, sea level would go up 200 ft. or more.
>
> But with current projections hovering at about 3 ft. of sea-level rise
> by 2100 without any contribution from East Antarctica, the trend is
> worrisome.
>
> It isn't just sea level rise people have to worry about, either:
>
> just yesterday, glaciologists reported that at least 100 icebergs, and
> possibly more, are headed toward New Zealand, where they could pose a
> hazard to shipping.
>
> The bergs are fragments of a giant ice floe that broke off the frozen
> continent last year - one more example of the ominous fact that what
bo^n-o
Don't panic!
What a combination!
http://wattsupwiththat.com/2009/11/16/monckton-climate-change-video-goes-viral/
> From TIME, 11/24/09:
> http://www.time.com/time/health/article/0,8599,1942828,00.html
>
> East Antarctica, Long Stable, Is Now Losing Ice
>
> By Michael D. Lemonick
>
> In this Nov. 16, 2009 photo, an iceberg is seen at Sandy Bay on
> Macquarie Island's east coast, in the Southern Ocean 1,500 kilometers
> (930 miles) southeast of Tasmania, Australia.
>
> It is very rare to see icebergs from Macquarie Island and is uncommon
> to find icebergs in this general region
>
> While the Earth has been warming overall, the giant East Antarctic Ice
> Sheet - which holds about five times as much ice as West Antarctica
> and Greenland combined - has actually been growing in size.
>
> That's because East Antarctica is far too cold, even in summer, for
> any appreciable melting to happen.
>
> And since a warmer world means more precipitation, any extra snow that
> falls on East Antarctica stays there indefinitely.
>
> Or at least, that's how things have gone until recently.
>
> But a new study in the journal Nature Geoscience suggests that this
> growth spurt may have come to an end.
>
> Starting in about 2006, says lead author Jianli Chen, of the Center
> for Space Research at the University of Texas at Austin, East
> Antarctica started declining, just like the world's other great ice
> sheets.
>
> "The amount [of decline] right now isn't very big, but the trend is
> alarming," he says.
>
> It's alarming because the behavior of ice sheets is the biggest
> variable in estimates of how sea level will rise over the next century
> - the faster ice sheets melt, the more sea level will rise.
>
> As recently as 2007, the Intergovernmental Panel on Climate Change
> (IPCC) admitted in its fourth major climate assessment report that
> there simply wasn't enough data to make a useful projection.
>
> But since then, satellite observations have shown that the ice in both
> Greenland and West Antarctica is sliding into the sea faster than
> anyone expected.
>
> And now it's happening in East Antarctica as well.
>
> The new evidence comes from the Gravity Recovery And Climate
> Experiment, or GRACE.
>
> It's a pair of satellites that circle the planet in tandem, moving
> slightly closer together or farther apart as they fly over regions of
> higher or lower local gravity - higher over a mountain range, for
> example, lower over a crater.
>
> Starting in 2006, GRACE began to detect lower gravity over East
> Antarctica, suggesting that the ice sheet was getting less massive.
>
> Exactly how much isn't clear:
>
> the best guess is about 57 billion tons per year, but with a huge
> uncertainty of plus or minus 52 billion.
>
> That's because Chen and his colleagues had to factor in something
> called Post Glacial Rebound, or PGR:
>
> during the last Ice Age, Antarctica had far more ice than it does
> today, and all that ice weighed down the underlying bedrock.
>
> With some of the ice gone, the rock is literally rising back up, like
> a mattress regaining its shape when a sleeper gets off - and as the
> depressed rock rises, so does the gravity it exerts on GRACE.
>
> "There's large uncertainty in the models of PGR," says Chen, so
> there's a corresponding uncertainty in how much ice is being lost."
>
> But it isn't the amount that matters so much at this point, says
> Konrad Steffen, director of the University of Colorado's Cooperative
> Institute for Research in Environmental Sciences.
>
> "It's that there's been a major change from stability to ice loss."
>
> As for what's causing East Antarctica to lose ice, it's probably much
> the same phenomenon as in West Antarctica and Greenland.
>
> Warming ocean temperatures are melting or weakening the ice where
> glaciers flow into the sea, and with less ice grinding on the sea
> floor, there's less friction.
>
> That lets ice from the interior flow seaward more quickly.
>
> "If you have ice loss," says Steffen, "it has to do with an increase
> in ice velocity."
>
> What that means for the future is unclear.
>
> Nobody really imagines that the whole East Antarctic ice sheet will
> slide into the sea anytime in the near future - and that's good
> because if it did, sea level would go up 200 ft. or more.
>
> But with current projections hovering at about 3 ft. of sea-level rise
> by 2100 without any contribution from East Antarctica, the trend is
> worrisome.
>
> It isn't just sea level rise people have to worry about, either:
>
> just yesterday, glaciologists reported that at least 100 icebergs, and
> possibly more, are headed toward New Zealand, where they could pose a
> hazard to shipping.
>
> The bergs are fragments of a giant ice floe that broke off the frozen
> continent last year - one more example of the ominous fact that what
mrbawana2u
> Maybe them icebergs didn't hear about the hacked Emails.
>
Lib-turd-retards...science by press release.
columbiaaccidentinvestigation
Thanks Harry.
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> [...]
> Thanks Harry.
I see you stopped spouting that terrorism nonsense, fucktard...
columbiaaccidentinvestigation
what i said still stands, and you have not made a logical rebuttal..
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 25, 6:02 pm, mrbawana2u <mrbawan...@gmail.com> wrote:
>
> > On Nov 25, 9:25 am, columbiaaccidentinvestigation
>
> > <columbiaaccidentinvestigat...@yahoo.com> wrote:
> > > [...]
> > > Thanks Harry.
>
> > I see you stopped spouting that terrorism nonsense, fucktard...
>
> what i said still stands,
But, I see you stopped spouting that terrorism nonsense, fucktard...
> and you have not made a logical rebuttal..
You and logic have no relation, you pathetic retard.
There was NOTHING to rebut.
George
> From TIME, 11/24/09:http://www.time.com/time/health/article/0,8599,1942828,00.html
>
> East Antarctica, Long Stable, Is Now Losing Ice
>
> By Michael D. Lemonick
>
> In this Nov. 16, 2009 photo, an iceberg is seen at Sandy Bay on
> Macquarie Island's east coast, in the Southern Ocean 1,500 kilometers
> (930 miles) southeast of Tasmania, Australia.
>
> It is very rare to see icebergs from Macquarie Island and is uncommon
> to find icebergs in this general region
Bullshit!
There was one that almost reached Stewart Island 2 years ago.
If you consult your New Zealand Pilot you will notice a warning that
ice may be present about the latitude of Macquarie depending upon wind
and current.
columbiaaccidentinvestigation
only because you cant think, dont blame me for that...
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 25, 6:59 pm, mrbawana2u <mrbawan...@gmail.com> wrote:
>
>
>
> > On Nov 25, 9:36 pm, columbiaaccidentinvestigation
>
> > <columbiaaccidentinvestigat...@yahoo.com> wrote:
> > > On Nov 25, 6:02 pm, mrbawana2u <mrbawan...@gmail.com> wrote:
>
> > > > On Nov 25, 9:25 am, columbiaaccidentinvestigation
>
> > > > <columbiaaccidentinvestigat...@yahoo.com> wrote:
> > > > > [...]
> > > > > Thanks Harry.
>
> > > > I see you stopped spouting that terrorism nonsense, fucktard...
>
> > > what i said still stands,
>
> > But, I see you stopped spouting that terrorism nonsense, fucktard...
>
> > > and you have not made a logical rebuttal..
>
> > You and logic have no relation, you pathetic retard.
> > There was NOTHING to rebut.
>
I see you stopped spouting that terrorism nonsense, fucktard...
Usually you're the biggest blowhard in the group, fucktard.
Now you seem to be stuck for words...
You can't cite your delusions. Hehe.
columbiaaccidentinvestigation
laughing, happy thanksgiving, dont worry you can learn about the law
and how wrong you are later, enjoy the day...
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 26, 5:13 am,mrbawana2u<mrbawan...@gmail.com> wrote:""
>
Last Post
Nothing worth the bandwidth.
•• East Antarctica is the closest point to Southern Chile
The Chaiten volcano has been active for some time
That could affect East Antarctica and of course it is
springtime
columbiaaccidentinvestigation
you're the biggest"
since you are the bug i keep squashing, im sure my shoe looks pretty
big to you just before it hits, but thats all relative from your
losing end of things.... Happy Thanksgiving...
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 26, 5:25 pm, mrbawana2u <mrbawan...@gmail.com> wrote:" Usually
> you're the biggest"
>
Just an off topic question, you delusional fucktard:
Is Maj. Nidal Malik Hassan a terrorist?
columbiaaccidentinvestigation
Are the GRACE, twin satellites doing a great job or what?
http://www.csr.utexas.edu/grace/
"GRACE, twin satellites launched in March 2002, are making detailed
measurements of Earth's gravity field which will lead to discoveries
about gravity and Earth's natural systems. These discoveries could
have far-reaching benefits to society and the world's population."
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 27, 6:17 am, mrbawana2u <mrbawan...@gmail.com> wrote:""
>
You're sure the patriots copying the emails are terrorists
but
you're not sure if Maj. Nidal Malik Hassan a terrorist?
Did I get that correct, you delusional fucktard?
columbiaaccidentinvestigation
no, i didnt answer, nor do i have to answer your question about Maj.
Nidal Malik Hassan, as my point was about cyber terrorism....
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 27, 12:24 pm,mrbawana2u<mrbawan...@gmail.com> wrote:
>
> > On Nov 27, 9:22 am, columbiaaccidentinvestigation
>
> > <columbiaaccidentinvestigat...@yahoo.com> wrote:
>
> > > [yawn flush]
>
> > You're sure the patriots copying the emails are terrorists
> > but
> > you're not sure if Maj. Nidal Malik Hassan a terrorist?
>
> > Did I get that correct, you delusional fucktard?
>
> no, i didnt answer, nor do i have to answer your question about Maj.
> Nidal Malik Hassan,
Pussy tard coward.
> as my point was about cyber terrorism....
OK, you delusional fucktard:
You see terrorism when patriot whistle-blowers leak emails.
You don't see terrorism when Nidal Malik Hassan,
fatally shoots 12 and wounds 31, while screaming,
"Allahu Akbar!"
Way to think it through, you pathetic retard.
columbiaaccidentinvestigation
>
> - Show quoted text -
im laughing at you because you think you can speak for me, not a smart
move from a brainless worm like you. You "see" the world from your
reactionary view, so dont blame me for you messed up conclusions....
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 27, 3:22 pm,mrbawana2u<mrbawan...@gmail.com> wrote:
>
>
>
> > On Nov 27, 3:33 pm, columbiaaccidentinvestigation
>
> > <columbiaaccidentinvestigat...@yahoo.com> wrote:
> > > On Nov 27, 12:24 pm,mrbawana2u<mrbawan...@gmail.com> wrote:
>
> > > > On Nov 27, 9:22 am, columbiaaccidentinvestigation
>
> > > > <columbiaaccidentinvestigat...@yahoo.com> wrote:
> > > > > On Nov 27, 6:17 am,mrbawana2u<mrbawan...@gmail.com> wrote:""
>
> > > > > [yawn flush]
>
> > > > You're sure the patriots copying the emails are terrorists
> > > > but
> > > > you're not sure if Maj. Nidal Malik Hassan a terrorist?
>
> > > > Did I get that correct, you delusional fucktard?
>
> > > no, i didnt answer, nor do i have to answer your question about Maj.
> > > Nidal Malik Hassan,
>
> > Pussy tard coward.
>
> > > as my point was about cyber terrorism....
>
> > OK, you delusional fucktard:
>
> > You see terrorism when patriot whistle-blowers leak emails.
>
> > You don't see terrorism when Nidal Malik Hassan,
> > fatally shoots 12 and wounds 31, while screaming,
> > "Allahu Akbar!"
>
> > Way to think it through, you pathetic retard.- Hide quoted text -
>
> > - Show quoted text -
>
Yeah, retards do a lot of that.
columbiaaccidentinvestigation
T. Keating
columbiaaccidentinvestigation
<columbiaaccide...@yahoo.com> wrote:
Unfortuantely the Gravity Recovery And Climate Experiment (TELLUS)
satellites are now past design lifetime and their orbits have decayed
past the point of usefullness. No replacement is scheduled.
More info about the GRACE TELLUS sats...
http://grace.jpl.nasa.gov/information/
http://www-app2.gfz-potsdam.de/pb1/op/grace/index_GRACE.html
mrbawana2u
> On Fri, 27 Nov 2009 15:54:12 -0800 (PST),
> columbiaaccidentinvestigation
>
> >On Nov 27, 3:50 pm,mrbawana2u<mrbawan...@gmail.com> wrote:""
>
> >[garbage]
> Unfortuantely [you're a tard]
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 27, 3:50 pm,mrbawana2u<mrbawan...@gmail.com> wrote:""
>
columbiaaccidentinvestigation
think it through"
as opposed to you, who does not....
mrbawana2u
<columbiaaccidentinvestigat...@yahoo.com> wrote:
> On Nov 28, 2:58 pm,mrbawana2u<mrbawan...@gmail.com> wrote:" Way to
> think it through"
>
> as [...]
columbiaaccidentinvestigation
reading is not your best quality, so try again, except take a little
more time before you make a fool of yourself....