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Wed Apr 17, 2019, 08:40 AM

What Earth's gravity reveals about climate change

On March 17, 2002, the German-U.S. satellite duo GRACE (Gravity Recovery and Climate Experiment) was launched to map the global gravitational field with unprecedented precision. The mission lasted 15 years, more than three times as long as expected. When the two satellites burned up in the Earth's atmosphere at the end of 2017 and beginning of 2018, they had recorded the Earth's gravitational field and its changes over more than 160 months.


This so-called time-resolved satellite gravimetry makes it possible, among other things, to monitor the terrestrial water cycle, the mass balance of ice sheets and glaciers, and sea level change, and thus to better understand the mechanisms of the global climate system, precisely assess important climatic trends, and to predict possible consequences.

A review in the journal Nature Climate Change now presents highlights in the field of climate research based on GRACE observations.

Ice sheets and glaciers

GRACE produced the first-ever direct measurement of ice-mass loss from ice sheets and glaciers. Previously, it had only been possible to estimate the masses and their changes using indirect methods. Within the first two years of the mission, it was already possible to observe clear signals of ice-mass loss in Greenland and Antarctica. The measured data showed that 60 percent of the total mass loss is due to enhanced melt production in response to Arctic warming trends, while 40 percent is due to an increase of ice flow into the ocean. According to GRACE data, between April 2002 and June 2017, Greenland lost about 260 billion tons of ice per year, Antarctica about 140 billion tons. In addition to long-term trends, the gravity field data also provide evidence of the direct effects of global climate phenomena such as El Niño on ice sheets and glaciers worldwide.

Terrestrial water storage

Among the most impactful contributions of the GRACE mission has been the unveiling of Earth's changing freshwater landscape, which has profound implications for water, food and human security. Global estimates of GRACE trends suggest increasing water storage in high and low latitudes, with decreased storage in mid-latitudes. Though the GRACE record is relatively short, this observation of large-scale changes in the global hydrological cycle has been an important early confirmation of the changes predicted by climate models through the 21st century.

https://phys.org/news/2019-04-earth-gravity-reveals-climate.html

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Reply What Earth's gravity reveals about climate change (Original post)
Micrometer Apr 2019 OP
Jardinier Apr 2019 #1
rahtruelies Apr 2019 #2
oflguy Apr 2019 #3
Micrometer Apr 2019 #4
oflguy Apr 2019 #5
Micrometer Apr 2019 #6
oflguy Apr 2019 #8
Micrometer Apr 2019 #9
oflguy Apr 2019 #10
SatansSon666 Apr 2019 #7

Response to Micrometer (Original post)

Wed Apr 17, 2019, 10:02 AM

1. When the permafrost melts we are in for it.

Not the mention what'll happen to the poor buggers in the British Isles when the Gulf Stream shuts down.

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Response to Micrometer (Original post)

Wed Apr 17, 2019, 11:54 AM

2. faux news alert

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Response to Micrometer (Original post)

Thu Apr 18, 2019, 08:33 AM

3. What a crock of crap

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Response to oflguy (Reply #3)

Thu Apr 18, 2019, 08:57 AM

4. Exactly what do you think is wrong with the science?

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Response to Micrometer (Reply #4)

Thu Apr 18, 2019, 09:03 AM

5. Any sattelite launched by a bunch of lefties to prove a hoax is the problem

By the way, how much have the seas risen?

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Response to oflguy (Reply #5)

Thu Apr 18, 2019, 09:21 AM

6. In the 25 years between 1993 and 2017, the sea level rose by an average of 3.1 millimetres per year.

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Response to Micrometer (Reply #6)

Thu Apr 18, 2019, 03:36 PM

8. Thats a lie

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Response to oflguy (Reply #8)

Thu Apr 18, 2019, 04:40 PM

9. It's a quote from the article.

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Response to Micrometer (Reply #9)

Thu Apr 18, 2019, 05:10 PM

10. So?

Rise of sea levels is 'the greatest lie ever told'

The uncompromising verdict of Dr Mörner is that all this talk about the sea rising is nothing but a colossal scare story, writes Christopher Booker.
Christopher Booker6:25PM GMT 28 Mar 2009

If one thing more than any other is used to justify proposals that the world must spend tens of trillions of dollars on combating global warming, it is the belief that we face a disastrous rise in sea levels. The Antarctic and Greenland ice caps will melt, we are told, warming oceans will expand, and the result will be catastrophe.

Although the UN's Intergovernmental Panel on Climate Change (IPCC) only predicts a sea level rise of 59cm (17 inches) by 2100, Al Gore in his Oscar-winning film An Inconvenient Truth went much further, talking of 20 feet, and showing computer graphics of cities such as Shanghai and San Francisco half under water. We all know the graphic showing central London in similar plight. As for tiny island nations such as the Maldives and Tuvalu, as Prince Charles likes to tell us and the Archbishop of Canterbury was again parroting last week, they are due to vanish.

But if there is one scientist who knows more about sea levels than anyone else in the world it is the Swedish geologist and physicist Nils-Axel Mörner, formerly chairman of the INQUA International Commission on Sea Level Change. And the uncompromising verdict of Dr Mörner, who for 35 years has been using every known scientific method to study sea levels all over the globe, is that all this talk about the sea rising is nothing but a colossal scare story.

Despite fluctuations down as well as up, "the sea is not rising," he says. "It hasn't risen in 50 years." If there is any rise this century it will "not be more than 10cm (four inches), with an uncertainty of plus or minus 10cm". And quite apart from examining the hard evidence, he says, the elementary laws of physics (latent heat needed to melt ice) tell us that the apocalypse conjured up by Al Gore and Co could not possibly come about.
The reason why Dr Mörner, formerly a Stockholm professor, is so certain that these claims about sea level rise are 100 per cent wrong is that they are all based on computer model predictions, whereas his findings are based on "going into the field to observe what is actually happening in the real world".

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When running the International Commission on Sea Level Change, he launched a special project on the Maldives, whose leaders have for 20 years been calling for vast sums of international aid to stave off disaster. Six times he and his expert team visited the islands, to confirm that the sea has not risen for half a century. Before announcing his findings, he offered to show the inhabitants a film explaining why they had nothing to worry about. The government refused to let it be shown.

Similarly in Tuvalu, where local leaders have been calling for the inhabitants to be evacuated for 20 years, the sea has if anything dropped in recent decades. The only evidence the scaremongers can cite is based on the fact that extracting groundwater for pineapple growing has allowed seawater to seep in to replace it. Meanwhile, Venice has been sinking rather than the Adriatic rising, says Dr Mörner.

One of his most shocking discoveries was why the IPCC has been able to show sea levels rising by 2.3mm a year. Until 2003, even its own satellite-based evidence showed no upward trend. But suddenly the graph tilted upwards because the IPCC's favoured experts had drawn on the finding of a single tide-gauge in Hong Kong harbour showing a 2.3mm rise. The entire global sea-level projection was then adjusted upwards by a "corrective factor" of 2.3mm, because, as the IPCC scientists admitted, they "needed to show a trend".

When I spoke to Dr Mörner last week, he expressed his continuing dismay at how the IPCC has fed the scare on this crucial issue. When asked to act as an "expert reviewer" on the IPCC's last two reports, he was "astonished to find that not one of their 22 contributing authors on sea levels was a sea level specialist: not one". Yet the results of all this "deliberate ignorance" and reliance on rigged computer models have become the most powerful single driver of the entire warmist hysteria.

•For more information, see Dr Mörner on YouTube (Google Mörner, Maldives and YouTube); or read on the net his 2007 EIR interview "Claim that sea level is rising is a total fraud"; or email him – morner@pog.nu – to buy a copy of his booklet 'The Greatest Lie Ever Told'

http://www.telegraph.co.uk/comment/columnists/christopherbooker/5067351/Rise-of-sea-levels-is-the-greatest-lie-ever-told.html

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Response to Micrometer (Reply #4)

Thu Apr 18, 2019, 10:45 AM

7. He doesn't understand science.

At all.
Anything he learned, he learned from fucking loons who don't understand it either.

Lefty lefty lefty..
Sad.

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