
God’s student
14.9K posts

God’s student
@Jamal_CL2
We differ not to fight but to complete each other — every nation a piece of the mosaic, each with a unique role. Find yours. شعاري هو الوفرة للجميع
Suomi Katılım Aralık 2017
796 Takip Edilen225 Takipçiler


@Emperoz_Dynasty @ApoloJesuss If that is your best answer then you should question this nonsense theology
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@Jamal_CL2 @ApoloJesuss Because your question stupid
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@Jamal_CL2 @euvitin0 Here's a clear official NASA visualization of Earth's gravity anomalies from the GRACE mission: grace.jpl.nasa.gov/resources/6/gr…
Red shows stronger gravity, blue weaker — directly from satellite measurements matching denser mountain roots and lighter zones.
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The gravity anomalies are the actual measured variations in Earth's gravitational field — captured directly by satellites. GRACE tracks tiny distance changes between twin satellites caused by uneven pull; GOCE measures gravity gradients onboard. These define the geoid's lumps from real orbit data alone.
Density comes later as the explanation: models from seismology and geology show why specific spots deviate. Positive anomalies often match denser mountain roots (Himalayas, Andes); negative ones align with ocean trenches or lighter mantle zones. Global GRACE maps display these patterns worldwide. The measurements stand on their own.
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The geoid is mapped directly from satellite measurements of the actual gravity field (GRACE via precise distance changes between satellites; GOCE via onboard gradiometer detecting gradients). These observe the integrated gravitational effect in orbit — no internal density model is assumed to define the equipotential surface or its undulations. Density interpretations come later, when explaining *why* anomalies exist. The lumpy shape is data-driven, not assumed.
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The geoid shown *is* Earth's actual shape model: the equipotential surface of gravity (what mean sea level would be without tides, winds or currents). The visible lumps and dips are gravitational anomalies caused by uneven mass distribution — mountains, trenches, mantle variations. They define the shape, not separate from it.
Instruments mapping it:
- GRACE: twin satellites measure tiny distance changes between them caused by local gravity differences.
- GOCE: onboard gradiometer (accelerometers) detected gravity gradients in multiple directions.
- Ground gravimeters for local checks.
Satellite + GPS data build these precise global models, confirming the irregular "lumpy potato" form.
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@ApoloJesuss 🤣 even Christian make fun over their theology because it doesn’t make sense
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The geoid and EGM2008 come directly from gravity measurements (GRACE satellites + ground surveys) that detect the real effects of Earth's density variations—denser rock or mantle pulls stronger, lighter crust or sediments less so. These create the observed anomalies encoded in the spherical harmonics. It's not a uniform "more mass = more stuff" simplification; the model fits the actual, irregular gravitational potential from heterogeneous densities. That's why it matches GPS/altimetry data to high accuracy.
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The geoid is defined as the equipotential surface of Earth's gravity field that best approximates global mean sea level. Gravity data from satellites like GRACE and terrestrial surveys are the only way to determine it precisely because local mass variations affect plumb lines, leveling, and what "level" actually means. Pure geometric distances or ellipsoid altitudes alone cannot capture this.
EGM2008 is the rigorous standard model combining those gravity measurements into spherical harmonics. It is validated daily by GPS, satellite altimetry, and surveying to high accuracy and used worldwide for positioning and oceanography. The reported undulation range of roughly +85 m to -107 m matches independent evaluations of the model.
It is neither irrelevant nor false. What specifically leads you to conclude otherwise?
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with all due respect my good sir im not looking for a fight nor competing with anyone least of all my pal grok your questions just keep circling back to the same old coord confusion like those +85 to -106 lines which already got wrecked by basic spherical reality so maybe chill and ask something fresh instead of tagging ghosts
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Those geoid undulation extremes (~+85 m max to -107 m min) and maps come from NGA’s EGM2008 model. It combines GRACE satellite gravimetry, millions of terrestrial gravity measurements, and satellite altimetry over oceans. Data are merged into spherical harmonic coefficients (degree/order 2159) via least-squares adjustment, following IAG standards and referenced to the WGS84 ellipsoid. Values are computed by evaluating the model on a global grid.
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@Jamal_CL2 @grok @euvitin0 from grace satellites dropping gravity data plus land sea air surveys all shoved into egm2008 spherical harmonics by nga spooks thats the standard but its still just a lumpy earth guess with meters of error baked in
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@Jamal_CL2 @grok @euvitin0 lol grok dipped cuz arguing with u is like debating a potato on why its not perfectly round he faced the geoid mess already and ur reference lines from +85 to -106 just prove u lost the plot on basic coords
tag this coward take back to whatever thread u ran from instead
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Here to engage directly. The +85m to +106m range (often cited as ~+85m max to -106/-107m min) shows geoid undulation: how much Earth's actual gravity equipotential surface (approximating mean sea level) deviates from the smooth WGS84 reference ellipsoid.
Positive = geoid above ellipsoid; negative = below. That's why GPS ellipsoidal heights need geoid correction for true orthometric "above sea level" values. Standard from models like EGM96/EGM2008. The video shows the real bumpy geoid reality. What's the precise difficulty or chart you're referencing?
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