Skip to comments.Global Sea Level Drops 6 mm in 2010 [NASA satellite data]
Posted on 02/08/2012 1:28:10 PM PST by grundle
The red line in this image shows the long-term increase in global sea level since satellite altimeters began measuring it in the early 1990s. Since then, sea level has risen by a little more than an inch each decade, or about 3 millimeters per year. While most years have recorded a rise in global sea level, the recent drop of nearly a quarter of an inch, or half a centimeter, is attributable to the switch from El Niño to La Niña conditions in the Pacific. The insets show sea level changes in the Pacific Ocean caused by the recent El Niño and La Niña (see http://sealevel.jpl.nasa.gov/science/elninopdo for more information on these images). Image credit: S. Nerem, University of Colorado
OMG, we’re gonna die.
Oh boy! Maybe we can get Eastwood to do another commercial.
It’s worse than I thought. Global Warming (tm) made the sea levels rise by 16 feet, concurrently the heat from global warming caused evaporation which lowered the sea levels by 16 feet (plus 2 cm).
Is this "the moment when the rise of the oceans began to slow and our planet began to heal"...?
Is that the sound of a head swelling I hear?
“This was the moment when the rise of the oceans began to slow and our planet began to heal.”
Most megalomaniacal line in Barack Obama’s speech. We laughed a lot.
6mm is nothing.
I thought global warming was suppose to melt the icecaps and increase the global sea level.
AAAAAH!! NEXT THING Y’KNOW IT’LL BE 7MM!!! I’M THIRSTY!!
The real question: Is the sea level falling or are the tectonic plates being pushed upwards by 6 mm?
Al Gore and Dr. James Hansen find this pesky Satellite Data very disturbing and NOT to be trusted....
"is the ground risin'?"
They are going to try and change the scam, possibly to protecting animal species, animals that are becoming extinct. Too many people..the earth is fragile
The sea level goes up and we are all going to die unless we give up our hard earned labor and change our ways.
The sea level is stuck in place and we are all going to die unless we give up all of our hard earned labor and change our ways....
where did the water go?
did it become..... ice??
Thats a little more sea water real estate for the Delta Smelt lil’ fishies.... the enviro-greenies should be thrilled.
Too bad for them that fish don’t vote!
I thought melting ice added water to the seas...ooops! Maybe our man-made global warming has created some trickster, evil ice process?
Don’t give him any ideas.
“where did the water go?”
Boiled off, on account of all the Global Warming going on.
WOW! Obama really did stop the oceans from rising!
Could be leaky drainplugs at the bottom of the oceans. Liberalism-made leaky drainplugs cause it. If you don't believe so, then you are a drainplug denier.
Now I know that Obama must be re-elected for another four year term! He is the hope man with which we can avoid climate change! (OMG. I’m out of breath!)
Just why in hell would you post this piece of garbage?
I’d certainly guess that Florida is sinking.
Well, I DID fill up my pool....
“is the ground risin’?”
Could be the whole planet is expanding:
Little off topic (earthquakes), but wow!:
I’d like to know how you can get a measurement THAT small on something so huge that’s always moving.
So shouldn’t this put an end to the “beachfront in Kansas” fearmongers?
Well, no wonder we here in Florida didn't see it in the Gulf or the Atlantic, it all happened in the Pacific.
Wonder what would happen if all the world's seas were connected?< /sarcasm >
This happens every time Rosie O'Donnell walks up onto the beach after a dip in the ocean.
3.2mm/year is like 1/8 of an inch! This is series!
Basically, you take lots and lots of measurements over time and average them. Factors such as season, lunar/planetary alignments, satellite orbital eccentricity, sea surface temperature, etc will also be accounted for in this process.
Given the surface area of the ocean, it is.
Since we haven’t had warming in 15 years and may be seeing a cooling, I wonder if the new ice age has started.
The Global Warming is worse than we thought. It’s so hot that the water from melted polar ice caps is evaporating!
We are DOOMED!
Actually, that is not the real question. Indeed that question is meaningless.
Satellite based sea level measurements are made with RADAR altimeters or LASER altimeters. The satellite instruments measure distance between the satellite and the sea surface (which is far from level). The satellite is in a known orbit, at a known distance from Earth's center of mass ... difference gives "sea level". The real data processing is somewhat more complex than that, but that's the basic theory of it.
" Actually, not so meaningless. The tectonic plates are in constant motion. Most of the northern (and southern) land masses, which were covered by miles-thick ice sheets, in the last ice age, are still rising. As the continental land masses rise, the plates underneath the oceans could fall, because of the displaced magma. This post ice-age rebound is well documented. It is not the only reason that plates are “rising” or “falling”. (Convection currents in the mantle are probably more important.)
If the ocean were to get deeper (ie the plates underlying the water were to “fall”) then the surface of the ocean would also drop, relative to the centre of the earth.
I'm not saying this is what's happening here — just saying that the original question isn't meaningless.
Here's a link to an interesting graphic on the subject:
“Neither. It’s a hidden alien base sitting at the bottom of the ocean consuming our water.”
I call BS.
It’s all the desalinization plants along the African shorelines producing fresh water for our African brethren. They are using that water to plant crops, grow food, raise animals and feed the continent.
With those plants, they have created economies that have made many people on the continent very wealthy. Poverty has decreased, hunger has decreased and next year they are building the first water park in the Mogadishu suburbs.
This is exciting news.
NASA is run by 20 IQ gnats who couldn’t land a fly on dead meat.
The melting of Himalayan glaciers caused controversy in 2009 when a report from the UN’s Intergovernmental Panel on Climate Change mistakenly stated that they would disappear by 2035, instead of 2350. However, the scientist who led the new work is clear that while greater uncertainty has been discovered in Asia’s highest mountains, the melting of ice caps and glaciers around the world remains a serious concern.
“Our results and those of everyone else show we are losing a huge amount of water into the oceans every year,” said Prof John Wahr of the University of Colorado. “People should be just as worried about the melting of the world’s ice as they were before.”
His team’s study, published in the journal Nature, concludes that between 443-629bn tonnes of meltwater overall are added to the world’s oceans each year. This is raising sea level by about 1.5mm a year, the team reports, in addition to the 2mm a year caused by expansion of the warming ocean.
That must be along the same lines as “global warming causes it to be colder”.
Sea levels began to rise 18k years ago at the end of the last glacial period. They have risen about 135 meters since then which is an average of 7.5 millimeters per year. That is an average of 750 mm per century (29.5 inches) which is far more than the average over the last century.
From 1880 to 2000 sea level rose about 20 cm or just under 8 inches. Far far less than the nearly 30 inches per century average over the last 18,000 years.
Will Baraq be using this in his 2012 campaign commercials?