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Abstract

Summary

Standardization of the gravity database is tested on an area in the central Serbia. After the revision of gravity data set, horizontal and vertical datums were transformed from the local system to WGS84. Changes of vertical datum are far more significant and they also mean a transfer of reference datum from geoid to ellipsoid. Observed gravity is transferred from Potsdam datum to IGSN71 datum and normal (theoretical) gravity is recalculated for GRS80 ellipsoid. Improvements in gravity data reductions include second order height correction and Bouguer correction for the spherical cup (curvature correction), while atmospheric effect is added as a new correction. Isostatic corrections and recalculation of the terrain corrections were not included in the processing.

In order to test the effects of standardization, conventional approach to the reduction of observed gravity data and calculation of Bouguer anomaly is compared to the application of new standards in reduction. Although most steps of standardization show significant differences from the conventional approach (mostly due to change of elevations), total intensity of anomalies is not significantly changed. Application of the new standards for reducing gravity data improves the accuracy without an influence on the general shape of gravity anomalies.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.201702577
2017-11-05
2024-04-26

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References

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201702577
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Standardization Of Serbian Gravity Database On A Test Area
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201702577
/content/papers/10.3997/2214-4609.201702577
/content/papers/10.3997/2214-4609.201702577
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