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a geoid is shape or sphere etc.
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∙ 15y ago
The geoid is an equipotential surface that represents mean sea level around the Earth, taking into account the planet's gravitational field and rotation. It serves as a reference for measuring elevation and is used in creating precise global height models for applications like GPS systems and geodesy.
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How many miles around the poles?
The circumference of the earth at the equator is 40,075.16 kilometers or 24,901.55 miles.The shorter circumference of the earth over the poles is 40,007.86 kilometers or 24,859.73 miles.The difference is 67.3 kilometers or 41.82 miles.This shape is known as an ellipsoid or more properly, a geoid (earth-like).
What is the diameter of the earth in feet?
The distance around the Earth depends on the exact location but this answer presumes around the equator, this distance being termed the circumference. The circumference of the Earth is approximately 25000 miles. There are 5280 feet in each mile, and the conversion results in 132,000,000 feet. This is 132 million feet.
What country is in the middle of the earth?
No country is directly in the middle of the earth. The center of the earth is made up of molten iron and nickel about 6,400 kilometers beneath the Earth's surface.
What is the earth biggest element?
The Earth's largest element by mass is oxygen, which makes up about 47% of the Earth's crust. Oxygen is also a major component of the atmosphere and is critical for sustaining life on Earth.
What is another name for Earth Rotation?
Another name for Earth rotation is diurnal motion or daily rotation.
Shape of earth geoid or spherical?
The Earth is geoid THE EARTH IS SPHERICAL
Why is it not helpful to use the term geoid to describe the shape of the earth?
The geoid has an equipotential surface where the force of gravity is perpendicular everywhere. But the earth has an irregular mass distribution and the resultant anomalies, makes the term geoid not a suitable reference.
What are earths most likely forms?
"Roundish" is the clear winner so far as I know.(The actual shape of Earth is not a sphere; it's a "geoid", but saying "Earth is a geoid" is pretty much a tautology, since it amounts to saying "Earth is Earth-shaped.")
What is an earth-shaped object called?
The technical name for the shape of the Earth is geoid. This is studied in the science of geodesy.
What is earth called as?
The shape of the earth, after the unevenness of the mountains and valleys have been removed, is geoid. This, rather unhelpful term means earth-shaped. The geoid represent the shape that would be attained by the earth's oceans in the absence of tides and currents; and which is them extended onto the continents. It is the baseline which identifies the mean sea level.A simpler term is an oblate sphere. These is a flattened sphere.Simplifying even more, the earth may be referred to as a sphere.
What parameters of the geoid do geodesists measure?
Some of the parameters of the geoid, which are measured by geodesists, are the semi-major axis, and the reciprocal of flattening.
What is called the true model of the Earth?
The true model of the earth would be called an oblate spheroid. The earth is close to spherical, but bulges a little around the middle (equator). There is also a term for the theoretical 'average earth' if you will, that is the best possible fit between mathematical model and the actual physical planet. It is called the geoid. Surface altitude is calculated for a given spot based not on the physical earth, but on the location of the theoretical geoid at that spot.
What term is used for a drawing of the earth's surface?
A projection
What is an earth shaped object called?
The technical name for the shape of the Earth is geoid. This is studied in the science of geodesy.
How many km is south America from the equator?
From the Equator to the South Pole is a distance of 10001.96572931272 km or 6214.93336994000 miles or 5400.62944347339 nautical miles. Distance calculated using an online geodesic calculator. It is "accurate to about 15 nanometers [0.000015 mm or 0.00000059 of an inch] (for the WGS84 ellipsoid)". "The accuracy of 15 nanometers" "is for paths up to half-way round the earth." The most accurate methods for calculating geographical distance, ignoring changes in height, are ellipsoidal-surface formulae. "An ellipsoid approximates the surface of the earth much better than a sphere". The WGS84 ellipsoid (ellipsoid of revolution also known as a reference ellipsoid) is a relatively simple mathematical model of the Earth. And the distance is calculated along the surface of the WGS84 ellipsoid. The surface of this ellipsoid approximates the geoid, the Earth's mean sea level. The WGS84 ellipsoid's deviation from the geoid ranges from a maximum of about 85 m (279 feet) below the geoid off the coast of Iceland. However, another source states a maximum of 85.4 m (280 feet) below the geoid east of New Guinea. To a maximum of about 107 m (351 feet) above the geoid south of India.
What is distance around and through the Poles is?
The circumference of the earth at the equator is 40,075.16 kilometers or 24,901.55 miles.The shorter circumference of the earth over the poles is 40,007.86 kilometers or 24,859.73 miles.The difference is 67.3 kilometers or 41.82 miles.This shape is known as an ellipsoid or more properly, a geoid (earth-like).
How many miles around the poles?
The circumference of the earth at the equator is 40,075.16 kilometers or 24,901.55 miles.The shorter circumference of the earth over the poles is 40,007.86 kilometers or 24,859.73 miles.The difference is 67.3 kilometers or 41.82 miles.This shape is known as an ellipsoid or more properly, a geoid (earth-like).
