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Post by sigurdur on Jun 16, 2014 1:20:32 GMT
Doug: As the water level of the oceans drop, the bottom of the oceans rise. This is where most of the isostatic events occur.
And vice versa, as the land based glaciers melt, the land on the bottom of the oceans sinks from the additional weight of the water. That is why all of the "adjustments". Tiz better to just observe the tidal gauges, as that is where folks live. The isostatic ocean bottom happenings are really pure guesses.
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Post by icefisher on Jun 16, 2014 4:42:14 GMT
Sigurdur Thank you for the Bing files. By coincidence I was in Port Douglas last week, walked along the beach shown, watching out for crocs in the swamp on the other side of the small beach dune [!], and ate in the Sea Temple twice. Nosh was good. Why do none of the graphs show very recent tidal level changes? They all seem to stop between 2010 and 2012. BTW, I am having a little difficulty understanding isostatic rebound as an explanation for sea level change.. Seems to me that one country's rebound is another country's subsidence. Take Scandinavia for example; area rising quite rapidly from the last Ice Age disappearing. Presumably when it "dipped" under ice weight, somewhere else there must have been a corresponding upthrust.[And vice versa]. All the continents are floating on semi-fluid rock. Isostatic rebound is sort of related to the floating effect. Glaciers and ice sheets exert a downward thrust on the continent. Ice melts runs off to the see and the pressure on the continent is relieved and the weight is transferred to the ocean bottoms. I don't think isostatic rebound is a controversial theory. What is controversial about it are how its effects are estimated.
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Post by nonentropic on Jun 16, 2014 5:57:09 GMT
Ice is no different to the load exerted by normal geological deposition. The real difference is the fact that it happens largely above sea level and when the load is removed the land rises or rebounds.
The entire planet is a plastic sphere working with variable density and changing loads from melting ice, rising and falling sea levels. How does the world of world leaders think a resolution of 1mm per year is possible in the face of 4000mm daily tidal movement and wave variation of several thousand mm every few seconds then "averaged or smoothed" for the whole planet in some mythical weighted average sea height. And my favorite question what are errors! No errors gives me the feeling that cherry picking sits behind the output.
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Post by dontgetoutmuch on Jun 16, 2014 14:51:08 GMT
(Places tinfoil hat on head) Is the sea level rising in accordance with the narrative? Correct me if I am wrong, but the true smoking gun of AGW is hidden behind the fact that the planet is exploding. I know it is complicated, but bear with me. Everyone knows the ice cap is melting and we are all going to perish in mankind's waste heat after we burn and drown at the same time. This is clearly demonstrated by the all the extra sea ice in the world, and the desperately cold winter we just exited. (Sorry, one of my faults is I'm Northern Hemispheric Centric) The oceans are rising at tsunami-like speed, but this is not apparent to deniers because sea level rise is being hidden by the Continents rising just as fast, due to isostatic rebound from an age when soccer moms did not drive SUV's. In Antarctica's case the Earth is rising much faster then the oceans. Very soon all the continents will achieve orbit. The only way to stop this from happening is to initiate a carbon tax on the West, and of course build more bird choppers, and additional solar power plants. No, I don't think so Dontgetoutmuch, There is no such thing as 'man-made global warming,' and the arctic and antarctic sea ice melts occur naturally, mostly during their respective warm seasons in both hemispheres of Earth, the north and south poles. Moreover, the ice caps are growing - not melting - and there will be no floods because of that. Some people fail to remeember that it is at the equator where sea levels always rise. On glacier melt, a new study by researchers at the University of Texas at Austin found that the West Antarctic Ice Sheet has been melting due to geothermal heat - but not by human-induced global warming, which does not exist anyhow according to the laws of physics. Nonetheless, the careerist alarmists who say that pink elephants can fly (man-made global warming) took yet another turn in their delusion by freaking out over Antarctica’s western ice sheet as, quote, "further evidence the planet is warming." Using boy-cries-wolf-again-and-again-on-man-made-global-warming propaganda on western ice sheet melt in Antarctica, they use words like "unstoppable" and could "dramatically raise sea levels," and we have to "act on climate change." All of it bullshit from start to finish. This astrometeorologist continues to state that there is NO such thing as 'man-made global warming.' It does not and can never exist on Earth according to the physical laws that govern the Earth's entire planetary atmosphere and climate. It is the Sun and the planets that causes all climate change on Earth. This is natural and the same laws of physics continue in operation on our planet. Human beings cannot cause planetary climate change - only the SUN can do that and does it very, very well indeed. 'WHAT IS REALLY HAPPENING AT THE WESTERN ICE SHEET OF THE ANTARCTIC'Researchers from University of Texas at Austin's Institute for Geophysics found that the Thwaites Glacier in western Antarctica is being eroded by geothermal heat from magma and subaerial volcanoes.
Thwaites is considered a key glacier for understanding future sea level rise.
UTA researchers used radar techniques to map water flows under ice sheets and estimate the rate of ice melt in the glacier.
As measurements showed, the geothermal heat from the magma and volcanoes under the glacier is much hotter and covers a much wider area than was previously thought.
“Geothermal flux is one of the most dynamically critical ice sheet boundary conditions, but is extremely difficult to constrain at the scale required to understand and predict the behavior of rapidly changing glaciers,” UTA researchers wrote in their study, which was published in the Proceedings of the National Academy of Sciences."See ->> www.pnas.org/content/early/2014/06/04/1405184111.full.pdf+html?sid=5859c342-ec49-4de6-a82a-9b2c2c826b3eReally Astromet?!? When I say that I'm putting on my tinfoil hat and that more ice proves that there is less ice and that isostatic rebound will cause the continents to go into orbit you take me seriously? Ok, here is my sarc tag for my original post. /sarc I honestly did not think it was necessary.
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Post by Ratty on Oct 13, 2014 23:20:21 GMT
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Post by sigurdur on Oct 14, 2014 2:28:01 GMT
I am glad sea levels are still rising. Imagine if they were falling.
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Post by sigurdur on Jan 15, 2015 4:34:43 GMT
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Post by scpg02 on Feb 2, 2015 15:34:06 GMT
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Post by sigurdur on Feb 2, 2015 15:40:33 GMT
Back to that knowledge thing isn't it? Sea levels rise during interglacials. I don't care how little or how much CO2 shows up, this is one thing that is 100% certain to happen, continue to happen, UNTIL the interglacial ceases to BE an interglacial. Why in the world is this so surprising to "scientists" who advocate AGW and GAWG? Do they really think we are all just flat out stupid? (On 2nd thought, don't answer the above question)
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Post by nautonnier on Feb 3, 2015 3:03:13 GMT
Back to that knowledge thing isn't it? Sea levels rise during interglacials. I don't care how little or how much CO2 shows up, this is one thing that is 100% certain to happen, continue to happen, UNTIL the interglacial ceases to BE an interglacial. Why in the world is this so surprising to "scientists" who advocate AGW and GAWG? Do they really think we are all just flat out stupid? (On 2nd thought, don't answer the above question) From my experience academics are often extremely intelligent and stupid. It is often necessary to lead them slowly through a chain of logic before you see the dawning of understanding followed by the mind closing as they do not wish to believe how irredeemably stupid they have been. "Strange as it seems, no amount of learning can cure stupidity, and higher education positively fortifies it." Stephen Vizinczey, An Innocent Millionaire
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Post by sigurdur on Feb 3, 2015 3:34:56 GMT
Back to that knowledge thing isn't it? Sea levels rise during interglacials. I don't care how little or how much CO2 shows up, this is one thing that is 100% certain to happen, continue to happen, UNTIL the interglacial ceases to BE an interglacial. Why in the world is this so surprising to "scientists" who advocate AGW and GAWG? Do they really think we are all just flat out stupid? (On 2nd thought, don't answer the above question) From my experience academics are often extremely intelligent and stupid. It is often necessary to lead them slowly through a chain of logic before you see the dawning of understanding followed by the mind closing as they do not wish to believe how irredeemably stupid they have been. "Strange as it seems, no amount of learning can cure stupidity, and higher education positively fortifies it." Stephen Vizinczey, An Innocent Millionaire I have seen that same deer in the headlight response, and then the closing of the eyes so that won't be blinded by actual logic.
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Post by sigurdur on Apr 6, 2015 16:41:40 GMT
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Post by acidohm on Apr 6, 2015 17:17:21 GMT
But they reckon sea levels started to rise 150 years ago after 4000+ of being stable.....surely by that logic human involvement is discounted?
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Post by sigurdur on Apr 6, 2015 19:18:07 GMT
But they reckon sea levels started to rise 150 years ago after 4000+ of being stable.....surely by that logic human involvement is discounted? Doesn't appear to be the case Acidohm. One just can't help stupid at times....just sayin.
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Post by acidohm on Apr 6, 2015 21:20:58 GMT
But they reckon sea levels started to rise 150 years ago after 4000+ of being stable.....surely by that logic human involvement is discounted? Doesn't appear to be the case Acidohm. One just can't help stupid at times....just sayin. Well....as my wife often alludes to, If I can see/feel/think it, it must be stupid
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