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Earth's Gravity Revealed in Unprecedented Detail

 
Anonymous Coward
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04/01/2011 02:05 PM
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Earth's Gravity Revealed in Unprecedented Detail
:geoid:
31 March 2011
After just two years in orbit, ESA's GOCE satellite has gathered enough data to map Earth's gravity with unrivalled precision. Scientists now have access to the most accurate model of the 'geoid' ever produced to further our understanding of how Earth works.

The new geoid was unveiled today at the Fourth International GOCE User Workshop hosted at the Technische Universität München in Munich, Germany. Media representatives and scientists from around the world have been treated to the best view yet of global gravity.

The geoid is the surface of an ideal global ocean in the absence of tides and currents, shaped only by gravity. It is a crucial reference for measuring ocean circulation, sea-level change and ice dynamics – all affected by climate change.


[link to www.esa.int]
Global Animation at link.
Anonymous Coward (OP)
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04/01/2011 02:13 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
"They show that GOCE (satellite) will give us dynamic topography and circulation patterns of the oceans with unprecedented quality and resolution. I am confident that these results will help improve our understanding of the dynamics of world oceans."
soupornuts
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04/01/2011 02:14 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Beautiful
Anonymous Coward (OP)
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04/01/2011 02:15 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Beautiful
 Quoting: soupornuts 1260754


It is amazing to see the strength of our planetary gravity in this way...so cool.
Anonymous Coward
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04/01/2011 02:15 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Beautiful
 Quoting: soupornuts 1260754


indeed.
Anonymous Coward (OP)
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04/01/2011 02:16 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
It looks like the gravity strengths follow the fault lines...interesting.
Anonymous Coward
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04/01/2011 02:19 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Beautiful
 Quoting: soupornuts 1260754


It is amazing to see the strength of our planetary gravity in this way...so cool.
 Quoting: SickScent


These are Bouguer gradients for the whole planet ?

Gawd I love science.
Anonymous Coward
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04/01/2011 02:20 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
wave
Anonymous Coward (OP)
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04/01/2011 02:30 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Beautiful
 Quoting: soupornuts 1260754


It is amazing to see the strength of our planetary gravity in this way...so cool.
 Quoting: SickScent


These are Bouguer gradients for the whole planet ?

Gawd I love science.
 Quoting: Anonymous Coward 1260754


In geodesy and geophysics, the Bouguer anomaly (named after Pierre Bouguer) is a gravity anomaly, corrected for the height at which it is measured and the attraction of terrain. The height correction alone gives a free-air anomaly.

On Earth the effect on gravity of elevation is 0.3086 mGal/m decrease when going up, minus the gravity of the Bouguer plate, giving the Bouguer gradient of 0.1967 mGal/m.


[link to en.wikipedia.org]
Funney
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04/01/2011 02:34 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
It looks like the gravity strengths follow the fault lines...interesting.
 Quoting: SickScent


easiest way for neutrons ? :D
Anonymous Coward
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04/01/2011 02:38 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
the GOCE satellite is a wounder on its own. This one is a game changer for sure.
Anonymous Coward (OP)
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04/01/2011 02:47 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
:boobbump:
Anonymous Coward
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04/01/2011 02:49 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Repost...
Anonymous Coward
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04/01/2011 02:49 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
It looks like the gravity strengths follow the fault lines...interesting.
 Quoting: SickScent


It looks like the majority of Africa to the Mid Atlantic region will be an area of interest for sure.

It's interesting if you watch the animated version. As it rotates away Africa and towards the Americas, you can start to see some curvature in "gravity"
Anonymous Coward (OP)
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04/01/2011 02:52 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Repost...
 Quoting: Anonymous Coward 1320701


oops, sorry, must have missed it.
Anonymous Coward (OP)
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04/01/2011 03:14 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
:boobbump:
 Quoting: SickScent
DDan

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04/01/2011 03:52 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Now that is sick (pun intended)!! Good find OP!
Kind Regards,
Dan
Anonymous Coward (OP)
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04/01/2011 03:53 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Now that is sick (pun intended)!! Good find OP!
 Quoting: DDan


thumbs
Anonymous Coward
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04/01/2011 03:55 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
bump

sickscent, you are one of few who post cool shit.
Anonymous Coward (OP)
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04/01/2011 03:56 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
bump

sickscent, you are one of few who post cool shit.
 Quoting: Anonymous Coward 1268788


Thanks! I was wondering if this would make it through all the doom and gloom lately on GLP...pretty fucking cool that we can vicariously 'see' gravity.
Anonymous Coward
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04/01/2011 03:59 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Beautiful
 Quoting: soupornuts 1260754


It is amazing to see the strength of our planetary gravity in this way...so cool.
 Quoting: SickScent


Very cool indeed... could it also help in EQ predictions?
Anonymous Coward (OP)
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04/01/2011 04:01 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
Beautiful
 Quoting: soupornuts 1260754


It is amazing to see the strength of our planetary gravity in this way...so cool.
 Quoting: SickScent


Very cool indeed... could it also help in EQ predictions?
 Quoting: Anonymous Coward 1144159


I don't know. I was just looking at this satellite's findings today...
Anonymous Coward (OP)
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04/01/2011 04:16 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
It looks like the gravity strengths follow the fault lines...interesting.
 Quoting: SickScent


It looks like the majority of Africa to the Mid Atlantic region will be an area of interest for sure.

It's interesting if you watch the animated version. As it rotates away Africa and towards the Americas, you can start to see some curvature in "gravity"
 Quoting: Anonymous Coward 1272733
Anonymous Coward
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04/01/2011 04:22 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
why does gravity decrease when rising in elevation?
It should increase as there is more mass beneath you, I thought.
Anonymous Coward (OP)
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04/01/2011 04:24 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
why does gravity decrease when rising in elevation?
It should increase as there is more mass beneath you, I thought.
 Quoting: Anonymous Coward 1108850


good question. Don't know, you need to ask a Gravitard.
Comedian

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04/01/2011 05:06 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
I'm not gonna touch it. You touch it.
Don't run. You'll just die tired.
Comedian

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04/01/2011 05:10 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
why does gravity decrease when rising in elevation?
It should increase as there is more mass beneath you, I thought.
 Quoting: Anonymous Coward 1108850


good question. Don't know, you need to ask a Gravitard.
 Quoting: SickScent


1) Bonus point for coining the term "Gravitard"

2) This tells me that either atomic density under the surface of the Earth is far from uniform (which we know already), and more-dense elements are congealed in certain areas causing gravity peaks and troughs, or

3) That whole "Push gravity" thing might have legs.
Don't run. You'll just die tired.
Anonymous Coward
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04/01/2011 05:14 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
5* as usual SS !!!

You rock !
Anonymous Coward
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04/01/2011 05:16 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
looks kinda like how we conceptualize sub atomic particles
Anonymous Coward
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04/01/2011 05:18 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail
I think you should add this to your blog ! ...just a thought hmm
Anonymous Coward
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04/01/2011 05:18 PM
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Re: Earth's Gravity Revealed in Unprecedented Detail

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