Assessment of combined and satellite only gravity models over Sri Lanka

Assessment of combined and satellite only gravity models over Sri Lanka

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The purpose of this study was to show reliability of combined and satellite only GGMs. It was an experimental research study that compare with terrestrial data and EGM2008. The GGMs were selected with three different category; tide system, degree/order and year. Gravity anomaly, gravity disturbance and height anomaly were computed from each models within Sri Lankan region by dividing number of grids and compared with same quantities of EGM2008 using ICGEM Calculation Service & Generic Mapping Tool (GMT). The major conclusion to this study was that relatively smaller STDs for height anomaly are...