Global Positioning System Reference
In-Depth Information
Longitude (
°
E)
Fig. 12. Istanbul local GNSS/levelling geoid with ANFIS model
IZNIK LAKE
Longitude (
°
E)
Fig. 13. Sakarya local GNSS/levelling geoid with ANFIS model
3.2 Local improvement of regional geoids
Besides the local GNSS/levelling geoid models, using locally improved regional geoid
model with local GNSS/levelling data also provides an applicable solution for
transformation of GNSS heights into regional vertical datum. Theoretically, the fundamental
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