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Satellite altimetry data showing rate of sea level rise  (Source: University of Colorado, Boulder)
World's oceans rise slower since 2005, fail to display predicted accelerating trend.

Satellite altimetry data indicates that the rate at which the world's oceans are rising has slowed significantly since 2005. Before the decrease, sea level had been rising by more than 3mm/year, which corresponds to an increase of about one foot per century. Since 2005, however, the rate has been closer to 2mm/year.

The decrease is significant as global climate models predict sea level rise to accelerate as atmospheric CO2 continues to increase. In the 1990s, when such acceleration appeared to be occurring, some scientists pointed to it as confirmation the models were operating correctly.

Sea level rise was calculated from altimetry data from the TOPEX/Poseidon and Jason-1 satellite missions, published by the University of Colorado, Boulder.

Dr. James Choe, a research associate with the University of Colorado, says the decrease is temporary. "Interannual variations often cause the rate to rise or fall", he says. Choe believes an accelerating trend will reappear within the next few years. Oceanographer Gary Mitchum of the University of South Florida, says making any judgement from the limited data available is "statistically so uncertain as to be meaningless".

Others disagree. Dr. Vincent Gray, a New Zealand based climatologist and expert reviewer for the IPCC, believes that the accelerated trends seen earlier were simply an artifact of poor measurements. "The satellite system has undoubtedly shown a rise since 1992, but it has leveled off", he tells DailyTech. "They had some bad calibration errors at the beginning."

Gray points to a study done by Flanders University using tide gauges which, he says, measured no perceptible increase in sea level over its entire 15 year period.

Sea level has been rising since the end of the last ice age, some 20,000 years ago. During an episode known as "Meltwater Pulse 1A", the world's oceans rose by more than 5 meters per century, a rate about 20 times faster than the current increase.

TOPEX/Poseidon was launched by NASA in 1992, and collected data until 2005. In 2001, NASA and France's Centre National d'Études Spatiales (CNES) launched its follow-up mission, Jason-1.

Jason-2 was launched in June of this year.



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By FITCamaro on 12/16/2008 6:32:39 AM , Rating: 2
I put nothing past the stupidity of the UN and Obama. He already wants to spend the better part of a trillion dollars on giving money to the poor in other nations. Because we're somehow responsible for making other nations less poor.

Obama as president in a time where the UN is constantly trying to act like it has legislative and executive authority over the US is a scary thought. The problem is its not just a thought.

This past year has already put taxpayers on the line for $7-8 trillion dollars of NEW debt in the long term. Not even repealing the Bush tax cuts is going to pay for that. Plus Obama wants a MANDATORY 5% "savings plan" coming out of your check that is on top of Social Security. It would be your own private account but the government has access to it to borrow from. So in essence it will be badged as a way to make Americans save so they don't have to rely on Social Security. But ol' grandpa government will be able to borrow against it just like Social Security so the money will disappear. Expect your paychecks to go down in a big way. And with employers freezing salaries, you won't have a raise to offset it. We just found out yesterday at my company that we're not getting raises.

My only hope is that the Republicans will make the next 2 years hell for Democrats by filibustering every socialist policy they bring up. I don't care if that means the government gets effectively shut down. It's better than the alternative.


"It's okay. The scenarios aren't that clear. But it's good looking. [Steve Jobs] does good design, and [the iPad] is absolutely a good example of that." -- Bill Gates on the Apple iPad














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