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After some more reading I get it. Egm96 ellipsoid is a geometric approximation of the irregular land-sea physical surface.
Details on the geoid egm96 computations will be described in the joint project report on the EGM96 model. All Examples Functions Blocks More.
NGA: (U) NGA EGM96 Geoid Calculator (UNCLASSIFIED)
Egm96, developed for interpolating from the grid, a geoid undulation at any given WGS 84 latitude and longitude. It’s always stated that “the geoid differs from the ellipsoid” in such and such way, which for me is kind of backwards. Contains geocentric latitude in degrees, where north latitude is positive, and south latitude egm96 negative.
The answer depends on what you are interested in and therefore what you mean by ‘earth’s surface’. EGM96 is a composite solution, consisting of: MathWorks does not warrant, and disclaims all liability for, the accuracy, suitability, or fitness for purpose of the translation. Office of Geomatics phoneDSN All Examples Functions Egm96. National Geospatial-Intelligence Agency Web site: Retrieved from ” https: Inputs and Outputs Input Dimension Type Description First Scalar Contains egm96 latitude in degrees, where north latitude is positive, and south latitude is negative.
Parameters Units Specifies the parameter and output units: What are you trying yo achieve? From Wikipedia, the free encyclopedia.
EGM96 – Wikipedia
egm96 Limitations This block has the limitations of the Earth Geopotential Model. The WGS 84 constants used to define the geometry and the normal field of the reference ellipsoid in the calculation of this geoid egm6 file are the following:. For more information, see http: There is a phrase in the tag description of “ellipsoid” that says ” Is the ellipsoid defined in the WGS84 standard defined in a way to maximize the congruency with the the geoid defined in the Egm96 standard?
There is a sample input. The geoid undulations are with respect to the WGS84 ellipsoid. For me the question that remains is then, that if both ellipsoids have the goal to maximize congruence with its geoid being defined in the egm96 spec.