00821W

8W

0821W

82W

e² = 1 - (a/b)²

None of the other statements is correct

f = 1 - b/a

f = 1 - a/b

All other options are correct

065157S

324812S

The geoid is the equipotential surface that would coincide with the mean ocean surface of the Earth if the oceans and atmosphere were in equilibrium, at rest relative to the rotating Earth.

The geoid, also known as an orthodrome, of a sphere is the intersection of the sphere and a plane that passes through the center point of the sphere.

The geoid, also know as ellipsoid of revolution, is a quadric surface obtained by rotating an ellipse about one of its principal axes.

Ellipsoid

Geoid

Flat

The main parameters that define a Geodetic Datum are:

• Major semi-axis of the reference ellipsoid (a),

• Translation coordinates with respect to the earth center .

• Rotation of the axis with respect to the reference ellipsoid.

• Minor semi-axis of the reference ellipsoid (b),
• The flattening factor (f)

• Translation coordinates with respect to the earth center.

• Rotation of the axis with respect to the reference ellipsoid .
• Scale factor (m)

The main parameters that define a Geodetic Datum are:

• Major semi-axis of the reference ellipsoid (a),

• The flattening factor (f)

• Translation coordinates with respect to the earth center.

• Rotation of the axis with respect to the reference ellipsoid .

The main parameters that define a Geodetic Datum are:

• Major semi-axis of the reference ellipsoid (a),

• The flattening factor (f)

• Translation coordinates with respect to the earth center.

• Rotation of the axis with respect to the reference ellipsoid.
• Scale factor (m)