AEROGRAVITY MEASUREMENTS

Aerogravity: Measurements of the Earth’s gravity field in a moving airplane, blimp, or helicopter. Requires the precise measurement of the location, velocity vector, and plane altitude. Compensation to get free-air gravity includes:

(a) vertical acceleration correction to compensate for aircraft vertical motion.
(b) gravimeter platform velocity (Eotvos and horizontal acceleration corrections).
(c) aircraft elevation above sea level (free-air correction).
(d) latitude correction.
(e) low-pass filtering to remove residual noise.

Gravity methods resolution

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