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RockDoc - the CU SL data comes from satellite measurements, as far as I can tell. Check out their FAQ page for more info (I posted a couple of them, but there's more - see below).Rockdoc Franz wrote: It would be interesting to compare satellite data with the CU SL data. If data sets mesh comfortably, then the outcry over manufactured data is BS. In essence it is an error correction. The question though is whether or not it is needed.
As for measuring eustacy, that is the actual rise in SL. Coastal onlap (landward encroachment by the sea) can still be a valid approach as long as the data collection is global in its distribution. Stable continents will record similar eustatic changes. Land masses that are sinking or rising will produce anomalous results that can then be recognized as having a tectonic origin. Trying to gauge Sea Level rise based on ocean volume is not fool proof. Relative changes in sea level without any change in ocean volume occur when the rate of tectonic spreading increases. Newly formed ocean floor is hot and as such tends to sit higher (isostatically). It subsides with distance away from the spreading center. If the rate of spreading is high, then hot ocean floor occurs farther away from the spreading center and this elevation of the sea floor then displaces the ocean volume landward, creating a relative rise in sea level.
Regarding the Fox News article by Maxim Lott (derived from previous blogs, e.g., Heartland Institute/Forbes) that questions our application of the glacial isostatic adjustment (GIA) correction to the altimeter-based global mean sea level (GMSL) time series and rate estimates, we would like to direct interest to our Frequently Asked Questions (FAQ) page that discusses the GIA effect and also the differences between our global mean sea level estimates from altimetry and regional/local relative sea level measured by tide gauges . These FAQs were updated in May with content partially derived from the discussion with Mr. Maxim, but much of this important content unfortunately did not get published in the Fox News article or in recent blogs.
We would also suggest consulting the other unaffiliated sea level research groups around the world that independently estimate global mean sea level from altimetry and also apply the scientifically well-understood GIA correction. Their current GMSL rate estimates are listed on the left sidebar of our site for reference. Note that our current rate estimate is actually the lowest of the groups, which does not support the claim that we "doctor the sea level data" to artificially support pro-climate change opinions. Instead, we strive to produce estimates of the global mean sea level time series and rate using the best available information to address the following questions:
How is the volume of the ocean changing?
How much of this is due to thermal expansion?
How much of this is due to addition of water that was previously stored as ice on land?
As the science of sea level change becomes better understood through peer-reviewed research, we include these advances in our global mean sea level estimates. This includes continuously improving some our applied altimetry corrections , such as better satellite orbits, ocean tides, and sea state bias models (all of which, along with the GIA correction, were updated and documented in our last 2011_1 release). For further study, we encourage interested parties to consult the references supplied in the FAQs and cataloged in our library and to also contact other research groups and scientists specifically studying global and regional sea level change.
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major bean wrote: Obviously, you do not know how science works. It is not me who relegates scientists of the past to the role of fakes and psuedo-scientists. It is the scientists of the next generation who label them so.
You need to learn to read and understand. The change in organisms work by the laws of nature to acheive this change. But the nature does not change. You do not understand that animals are not "nature" and are governed by "nature". They reside in nature just as we do. And nature never changes, but our understanding of nature does change.
Your extreme effort to misunderstand is not portraying you as a person of knowledge, but rather, one who is trying very hard to argue by misrepresenting what I have posted. That is not a good character trait for a "scientist" to have.
So would you like to reconsider that nature does not change? Plants and animas evolve as I pointed out before. Ocean chemistry changes as does the atmospheric composition through time. We are a part of nature too as we are mammals, you know, a class of animals.Nature [noncount] a : the physical world and everything in it (such as plants, animals, mountains, oceans, stars, etc.) that is not made by people.
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major bean wrote:
Nature is the principles upon which everything in the universe operates. It is that upon which science is based by observation. It ain't birdwatching. Anyone with scientific training knows this.archer wrote:
major bean wrote: nature never changes, but our understanding of nature does change.
Nature never changes? What is this nature you describe that has never changed?
I think that it is about time some of you need to start looking up some definitions: science, nature, fact, theory, etc.
Our understanding of nature comes about by the investigations into math, philosophy, chemistry, physics, etc.
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major bean wrote: RockDoc, wake up. Technology is based upon science, but it is NOT science. I am now beginning to doubt just what type of education that you might have. A scientist draws clear distinctions between things such as this and does not muddle up issues by blurring the lines between definitions.
.Without scientists known as physicists, blue ray technology, laser technology, computer technology, etc. would not exist. All are based on scientific research into fundamentals
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rofllolmajor bean wrote: Rockdoc Franz, you do not seem to know how science works.
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Nmysys wrote: Planet Earth
Changing Tides: Research Center Under Fire for 'Adjusted' Sea-Level Data
By Maxim Lott
Published June 17, 2011
| FoxNews.com
NASA Projects Sea Level Rise
Is climate change raising sea levels, as Al Gore has argued -- or are climate scientists doctoring the data?
The University of Colorado’s Sea Level Research Group decided in May to add 0.3 millimeters -- or about the thickness of a fingernail -- every year to its actual measurements of sea levels, sparking criticism from experts who called it an attempt to exaggerate the effects of global warming.
"Gatekeepers of our sea level data are manufacturing a fictitious sea level rise that is not occurring," said James M. Taylor, a lawyer who focuses on environmental issues for the Heartland Institute.
Read more: http://www.foxnews.com/scitech/2011/06/17/research-center-under-fire-for-adjusted-sea-level-data/#ixzz1PYsxevnh
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navycpo7 wrote:
Nmysys wrote: Planet Earth
Changing Tides: Research Center Under Fire for 'Adjusted' Sea-Level Data
By Maxim Lott
Published June 17, 2011
| FoxNews.com
NASA Projects Sea Level Rise
Is climate change raising sea levels, as Al Gore has argued -- or are climate scientists doctoring the data?
The University of Colorado’s Sea Level Research Group decided in May to add 0.3 millimeters -- or about the thickness of a fingernail -- every year to its actual measurements of sea levels, sparking criticism from experts who called it an attempt to exaggerate the effects of global warming.
"Gatekeepers of our sea level data are manufacturing a fictitious sea level rise that is not occurring," said James M. Taylor, a lawyer who focuses on environmental issues for the Heartland Institute.
Read more: http://www.foxnews.com/scitech/2011/06/17/research-center-under-fire-for-adjusted-sea-level-data/#ixzz1PYsxevnh
Does this mean they have a metric ruler planted in the sand on the beaches and watch during the tides to see what the rise is every year. Damn they are good. rofllol
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What you are describing is the understanding of a grade school child with regards to "nature". The school child's understanding is the definition of the birds, animals, plants, etc as nature. It is a layman's definition.Rockdoc Franz wrote:
major bean wrote: Obviously, you do not know how science works. It is not me who relegates scientists of the past to the role of fakes and psuedo-scientists. It is the scientists of the next generation who label them so.
You need to learn to read and understand. The change in organisms work by the laws of nature to acheive this change. But the nature does not change. You do not understand that animals are not "nature" and are governed by "nature". They reside in nature just as we do. And nature never changes, but our understanding of nature does change.
Your extreme effort to misunderstand is not portraying you as a person of knowledge, but rather, one who is trying very hard to argue by misrepresenting what I have posted. That is not a good character trait for a "scientist" to have.
No, I obviously do not know how science works after spending ten years in graduate school learning just how it works and then spending another 3 decades practicing science. But you obviously are the expert in terms of how science works. Your whole diatribe about regarding fakes and pseudo-scientists must be based upon one or two examples. Your generalization is out of order and a totally stupid assertion. Please define what you consider nature. All living things make up nature together with the physical part of the world in my book and according to definition (see http://www.learnersdictionary.com/search/nature )So would you like to reconsider that nature does not change? Plants and animas evolve as I pointed out before. Ocean chemistry changes as does the atmospheric composition through time. We are a part of nature too as we are mammals, you know, a class of animals.Nature [noncount] a : the physical world and everything in it (such as plants, animals, mountains, oceans, stars, etc.) that is not made by people.
I do not try to misunderstand. Rather, now I'm trying to illustrate just how ignorant you really are because your whole thought process is flawed because your basic knowledge is lacking. If you are going to argue, at least try to understand the words you use.
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