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- W2758977135 abstract "In order to estimate an accurate national geoid model for Saudi Arabia, existing regional leveling data will be utilized. This data consists of 5187 Bench Marks (BM) of ARAMCO network distributed all over the country and was observed by GPS receivers, known hereafter as BM/ GPS. The level network is dense in the eastern region while in other areas, especially in the western region, data coverage is sparse. The vertical datum is based on the mean sea level (MSL) at RasTanura Tidal BM in the East coast of the region (i.e. in the Arabian Gulf). We present the evaluation of this regional leveling network using satellite based geopotential models (GPM). For this study the EGM2008 model as well as the most recent GOCE GPM’s will be used, which provide a homogenous reference surface. To estimate the height system biases, we compare the height anomalies determined by GNSS/leveling at each point to those computed (synthesized) by the GPM’s. Statistical analyses of the computation a , mean values, and RMS will be shown. Finally, we will directly compare GPM geoids and the GNSS/Leveling data at different spatial resolutions in order to validate the GNSS/Leveling data. The conclusion of this study will show the biased (rejected) sites and the suitability of GOCE model to carry out regional geoid modeling." @default.
- W2758977135 created "2017-10-06" @default.
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- W2758977135 date "2013-04-01" @default.
- W2758977135 modified "2023-09-24" @default.
- W2758977135 title "Evaluation of Height System Biases for Regional Levelling Network in Saudi Arabia Using EGM08 and GOCE Models" @default.
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- W2758977135 hasPublicationYear "2013" @default.
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