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Table 1 Statistics of the gravity anomalous (unit: mGal)

From: Application of variance components estimation to calibrate geoid error models

	Min	Max	Mean	STD
Δg _fa	−52.5	56.4	0.2	22.9
Δg _ref	−47.5	17.4	−1.8	15.6
Δg _rtm	−12.4	13.5	−0.6	3.7
Δg _res	−37.1	39.1	2.5	15.0

Δg _fa FA anomalies, Δg _ref effect of the reference field of EGM2008 on the gravity anomalies, Δg _rtm terrain effect of RTM reduction, Δg _res residual gravity anomalies.

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