Physical Geodesy - Education
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Geoid and Observed Mean Sea Level

Geoid and Observed Mean Sea Level | Physical Geodesy - Education | Scoop.it
Hey guys

what are 2 difference between the geoid and observed mean sea level????

#1 = The goid gives an approximate calculated sea level surface whare as Obs… (Hey guys

what are 2 difference between the geoid and observed mean sea level?
Audrey Martin's insight:

Good resources site with plenty of YouTube Videos of different surveying equipment

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Earth's Gravity Revealed in Unprecedented Detail

Earth's Gravity Revealed in Unprecedented Detail | Physical Geodesy - Education | Scoop.it
After just two years in orbit, ESA's GOCE satellite has gathered enough data to map Earth's gravity with unrivalled precision.

 

Gravity isn't the same everywhere.  "ESA's GOCE mission has delivered the most accurate model of the 'geoid' ever produced, which will be used to further our understanding of how Earth works. The colours in the image represent deviations in height (–100 m to +100 m) from an ideal geoid. The blue colours represent low values and the reds/yellows represent high values. 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."  Follow the link to see an animated version. 


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Re-measuring Mount Everest by Geoid Determination - News - GIM International

Re-measuring Mount Everest by Geoid Determination - News - GIM International | Physical Geodesy - Education | Scoop.it

The world's highest mountain might just be a little higher than you think it is. New measurements to determine the earth's geoid could add a few metres to Mount Everest's height. In December 2010, scientists on board a King Air turboprop ascends through the thin Himalayan air to find out, how high Mount Everest really is.....


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Gravity Waves from Big Bang Detected - Scientific American

Proof of gravitational waves created by cosmic inflation is shown here in this image of the cosmic microwave background radiation collected by the BICEP2 experiment at the South Pole. The proof comes in the form of a ...
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