Antarctic land ice vanishing faster

[Delta4Embassy]

As measurements keep getting get better, we keep finding things are worse than originally thought. That generally goes for all climate science; the IPCC and other "alarmists" have been erring on the side of making predictions that are less severe than the reality.

Increased ice losses from Antarctica detected by CryoSat-2 - McMillan - 2014 - Geophysical Research Letters - Wiley Online Library
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Abstract
We use 3 years of Cryosat-2 radar altimeter data to develop the first comprehensive assessment of Antarctic ice sheet elevation change. This new data set provides near-continuous (96%) coverage of the entire continent, extending to within 215 km of the South Pole and leading to a fivefold increase in the sampling of coastal regions where the vast majority of all ice losses occur. Between 2010 and 2013, West Antarctica, East Antarctica, and the Antarctic Peninsula changed in mass by −134 ± 27, −3 ± 36, and −23 ± 18 Gt yr−1, respectively. In West Antarctica, signals of imbalance are present in areas that were poorly surveyed by past missions, contributing additional losses that bring altimeter observations closer to estimates based on other geodetic techniques. However, the average rate of ice thinning in West Antarctica has also continued to rise, and mass losses from this sector are now 31% greater than over the period 2005–2010.
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Mass loss of the Amundsen Sea Embayment of West Antarctica from four independent techniques - Sutterley - Geophysical Research Letters - Wiley Online Library
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Abstract
We compare four independent estimates of the mass balance of the Amundsen Sea Embayment of West Antarctica, an area experiencing rapid retreat and mass loss to the sea. We use ICESat and Operation IceBridge laser altimetry, Envisat radar altimetry, GRACE time-variable gravity, RACMO2.3 surface mass balance, ice velocity from imaging radars and ice thickness from radar sounders. The four methods agree in terms of mass loss and acceleration in loss at the regional scale. Over 1992–2013, the mass loss is 83±5 Gt/yr with an acceleration of 6.1±0.7 Gt/yr2. During the common period 2003–2009, the mass loss is 84±10 Gt/yr with an acceleration of 16.3±5.6 Gt/yr2, nearly three times the acceleration over 1992–2013. Over 2003–2011, the mass loss is 102±10 Gt/yr with an acceleration of 15.7±4.0 Gt/yr2. The results reconcile independent mass balance estimates in a setting dominated by change in ice dynamics with significant variability in surface mass balance.
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Have numerous problems science has alerted us to over the decades that we've done nothing about. Social violence, enviroment, health, etc. That we never do anything about them suggests they're by design or somehow desireable. Probably because people are making money off things the ways they are, and fixing problems would result in less profit. Nothing in the world ever seems to happen because it's the right things to do. It's always a matter of what makes more money? Projected foward, we're doomed. It's at he point where I wish hostile aliens would show up and start blasting stuff. Not like they could do any worse. And the sooner humans are gone, the sooner something else will get a chance at being a benefit to our planet instead of a liability like we are.

 

[Old Rocks]

So, the denialists have only nonsense for an answer to real research.

Changing the metrics and then trying to apply them to the old standard is not science.. ITS LYING... HIDING THE TRUTH....MISINFORMATION MONGERING......

This is a dam alarmist desperation play...

The fact is, the land ice is much the same as it has been for over 8,000 years. Even the paper admits this... They admit that there have been fluctuations in ice coverage and this is NOT OUTSIDE OF NORMAL VARIATION..

Now Billy ol' Boob, you are one lying fuck. Show where this says it is inside of normal variations.

Increased ice losses from Antarctica detected by CryoSat-2 - McMillan - 2014 - Geophysical Research Letters - Wiley Online Library

Our measurements of Antarctic ice sheet volume change extend the record of ice sheet mass balance to the present day. In the Amundsen Sea sector, where ice losses have tripled over the past two decades [Medley et al., 2014; Rignot et al., 2008; Wingham et al.,2009], our estimates of imbalance are in close agreement with those determined using independent methods. For example, according to mass budget estimates, the Pine Island Glacier—which remains the largest individual source of global ocean mass—lost 44 ± 7 Gt of ice in the year 2011 [Medley et al., 2014], a value that is consistent with our estimate (56 ± 13 Gt yr−1) derived over the period 2010 to 2013 and over an 11% larger area. Similarly, our estimate of the specific rate of mass loss from the wider, 419,000 km2 Amundsen Sea sector (286 ± 42 kg m−2 yr−1) is comparable to that derived for 89% of the same area using the mass budget approach (260 ± 35 kg m−2 yr−1 in Medley et al. [2014]). Although ice discharge from the Pine Island Glacier has remained stable since 2010 [Medley et al., 2014] following a notable decrease in the rate of ocean melting at the glacier terminus [Dutrieux et al., 2014], the period of the CryoSat-2 measurements is too short to establish whether the inland progression of ice thinning has abated.

At the continental scale, the most recent estimates of Antarctic ice sheet mass balance are based solely on satellite gravimetry surveys [Barletta and Bordoni, 2013; Velicogna and Wahr, 2013; Williams et al., 2014]. According to these studies, the rate of ice mass loss from Antarctica has increased progressively over the past decade and, between 2010 and 2012, fell in the approximate central range 105 to 130 Gt yr−1. Our survey puts the contemporary rate of Antarctic ice sheet mass loss at 159 ± 48 Gt yr−1, a value that, although larger, is nevertheless consistent given the spread of the gravimetry-based uncertainties (16 to 80 Gt yr−1). A possible explanation for the discrepancy is the exceptional snowfall event of 2009, which saw an additional ~200 Gt of mass deposited in East Antarctica [Boening et al., 2012; Lenaerts et al., 2013; Shepherd et al., 2012] that, although absent from the CryoSat-2 record, does factor in the gravimetry-based estimates of imbalance. It is also worth noting that gravimetry-based estimates of Antarctic ice sheet mass balance remain sensitive to the choice of model used to correct for glacial isostatic adjustment, with differences of up to 64 Gt yr−1 arising when alternative models are employed [Velicogna and Wahr, 2013], reinforcing the need for contemporaneous estimates of ice mass loss derived from independent techniques [Shepherd et al., 2012].

 

[CrusaderFrank]

So as you change the methods you use to measure, you get the results you are looking for?

Yes, when the data fails to validate the theory, you alter the data. It's the AGWCult Non-Scientific Methood

 

[CrusaderFrank]

Whatever little credibility the AGWCult had, I think it was near absolute zero before this, has now completely evaporated

 

[CrusaderFrank]

So, the denialists have only nonsense for an answer to real research.

Decline Hiders so desperate they alter the data

 

[jc456]

As measurements keep getting get better, we keep finding things are worse than originally thought. That generally goes for all climate science; the IPCC and other "alarmists" have been erring on the side of making predictions that are less severe than the reality.

Increased ice losses from Antarctica detected by CryoSat-2 - McMillan - 2014 - Geophysical Research Letters - Wiley Online Library
---
Abstract
We use 3 years of Cryosat-2 radar altimeter data to develop the first comprehensive assessment of Antarctic ice sheet elevation change. This new data set provides near-continuous (96%) coverage of the entire continent, extending to within 215 km of the South Pole and leading to a fivefold increase in the sampling of coastal regions where the vast majority of all ice losses occur. Between 2010 and 2013, West Antarctica, East Antarctica, and the Antarctic Peninsula changed in mass by −134 ± 27, −3 ± 36, and −23 ± 18 Gt yr−1, respectively. In West Antarctica, signals of imbalance are present in areas that were poorly surveyed by past missions, contributing additional losses that bring altimeter observations closer to estimates based on other geodetic techniques. However, the average rate of ice thinning in West Antarctica has also continued to rise, and mass losses from this sector are now 31% greater than over the period 2005–2010.
---

Mass loss of the Amundsen Sea Embayment of West Antarctica from four independent techniques - Sutterley - Geophysical Research Letters - Wiley Online Library
---
Abstract
We compare four independent estimates of the mass balance of the Amundsen Sea Embayment of West Antarctica, an area experiencing rapid retreat and mass loss to the sea. We use ICESat and Operation IceBridge laser altimetry, Envisat radar altimetry, GRACE time-variable gravity, RACMO2.3 surface mass balance, ice velocity from imaging radars and ice thickness from radar sounders. The four methods agree in terms of mass loss and acceleration in loss at the regional scale. Over 1992–2013, the mass loss is 83±5 Gt/yr with an acceleration of 6.1±0.7 Gt/yr2. During the common period 2003–2009, the mass loss is 84±10 Gt/yr with an acceleration of 16.3±5.6 Gt/yr2, nearly three times the acceleration over 1992–2013. Over 2003–2011, the mass loss is 102±10 Gt/yr with an acceleration of 15.7±4.0 Gt/yr2. The results reconcile independent mass balance estimates in a setting dominated by change in ice dynamics with significant variability in surface mass balance.
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Have numerous problems science has alerted us to over the decades that we've done nothing about. Social violence, enviroment, health, etc. That we never do anything about them suggests they're by design or somehow desireable. Probably because people are making money off things the ways they are, and fixing problems would result in less profit. Nothing in the world ever seems to happen because it's the right things to do. It's always a matter of what makes more money? Projected foward, we're doomed. It's at he point where I wish hostile aliens would show up and start blasting stuff. Not like they could do any worse. And the sooner humans are gone, the sooner something else will get a chance at being a benefit to our planet instead of a liability like we are.

Just one thing, since you are for the extinction of humans, why are you still breathing? You can take yourself out of your own misery and not have to wait for the alien ship!!! That is if you truly believe humans aren't allowed.

 

[mamooth]

So now jc calls for the death of his political opponents. It's rare to find a denier these days who isn't genocidal.

All of the deniers on this thread have gone full-blown conspiracy cultist on us. If data contradicts their cult, they auto-define it as a conspiracy.

The good thing about that for them is how such a theory can't be disproved. By definition, any data that appears to disprove it must be part of the conspiracy, and is thus invalid.

The bad thing about that for them is how it makes everyone think deniers are a pack of kooks.

 

[jc456]

So now jc calls for the death of his political opponents. It's rare to find a denier these days who isn't genocidal.

All of the deniers on this thread have gone full-blown conspiracy cultist on us. If data contradicts their cult, they auto-define it as a conspiracy.

The good thing about that for them is how such a theory can't be disproved. By definition, any data that appears to disprove it must be part of the conspiracy, and is thus invalid.

The bad thing about that for them is how it makes everyone think deniers are a pack of kooks.

and yet no experiment!!!!!

 

[2aguy]

Have you ever just once questioned why all the Scientific Societies, all the National Academies of Science, and all the major Universities all state AGW is real? That is scientists from every country and culture in the world.

They lied about this as well...

 

[Old Rocks]

OK, link to a Scientific Society that states that AGW is not a fact.

 

[bodecea]

I wonder what beautiful mysteries lie beneath the ice in Antarctica.​

Hot female vikings

South...not North.

I used to have a t-shirt that said "Ski South Pole...2 inches powder, 2 miles base." I wonder what the base is now.

 

[Judicial review]

I wonder what beautiful mysteries lie beneath the ice in Antarctica.​

Hot female vikings

South...not North.

I used to have a t-shirt that said "Ski South Pole...2 inches powder, 2 miles base." I wonder what the base is now.

Smart ass.

 

[skookerasbil]

Oh Gawd,............not this shit again!!!'

 

[Dont Taz Me Bro]

Have you ever just once questioned why all the Scientific Societies, all the National Academies of Science, and all the major Universities all state AGW is real?

Yes. As long as there is a "crisis" to resolve they all keep getting money and power from the governments of the world.

 

[Old Rocks]

Now that is funny.

 

[jc456]

Now that is funny.

and factual!