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downward continuation

1. n. [Geophysics]

A technique used to estimate the value of a potential field or seismic data at a surface beneath a measured surface. The method is risky because it assumes continuity of the field, so anomalies affect predictions, especially if they occur beneath the measured surface. Noise can be exaggerated and affect calculations adversely.

Antonyms: upward continuation

See: anomalygravitymagneticsseismic

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