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[DOCX File]Foreword - ICSM
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Distance from the surface of the ellipsoid used, to the surface of the geoid measured along the normal to this ellipsoid. This separation is positive if the geoid is above the ellipsoid and negative if the geoid is below the ellipsoid: h - H = geoid ellipsoid separation.
ellipsoid surface area calculator

[DOC File]Lecture Notes - University of Florida
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A negative value means that the geoid is under the ellipsoid. GPS measures "geodetic height, h" the vertical distance above the ellipsoid of a chosen datum. To convert from GPS ellipsoidal height to geoidal height (orthometric height,elevation): h = H + N. Example: If N = -25 m, the geoid is 25 m below the ellipsoid.
ellipsoid surface area

[DOCX File]Online Geospatial Education Program Office
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Dec 01, 2013 · This distance was used as a baseline of the surface distance to be compared to the measured geodetic distance and the GPS collected Topographic distance. The initial surveys of the two routes was collected in the World Geodetic System of 1984 (WGS-84) reference ellipsoid.
ellipsoid surface area calculator

[DOC File]Accurate Geographical Distance Field Generation on the ...
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A series of basic products of ellipsoidal spatial analysis can be generated via the accurate distance field on the ellipsoidal surface. As a kind of space-oriented computing tool at a large scale, the geographical distance field is capable of shifting a large proportion of spatial analysis algorithms from the Euclidean plane to the earth ...
ellipsoid surface area

[DOCX File]G-LiHT Data Center
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h=ellipsoid height (distance from topographic surface to mathematical approximation of the shape of the Earth, e.g., WGS84 or NAD83) N=geoid height (distance from ellipsoid to shape that the surface of the oceans would take under the influence of Earth's gravity and rotation alone, e.g., EGM96, GEOID12B)
ellipsoid surface area calculator

[DOC File]Land Coordinates
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The distance represented by a coordinate pair on the reference ellipsoid to the point on the surface of the Earth is measured along a line perpendicular to the ellipsoid. This distance …
ellipsoid surface area

[DOC File]Definition of a Mobile Location API
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The distances being the geodesic distance over the ellipsoid, i.e., the minimum length of a path staying on the ellipsoid and joining the two points, as shown in figure below. As for the ellipsoid point, this can be used to indicate points on the Earth’s surface, or near the Earth’s surface…
ellipsoid surface area calculator

Distance to the surface of an ellipsoid