Estimating the geopotential value W0 of the local geoid based on data from local and global normal heights of GPS/leveling points in Vietnam
DOI: https://doi.org/10.3846/20296991.2013.823705Abstract
Currently, the determination of geopotential value W0 of local geoid that best fits local mean sea level at the Zero Tide Gauge Station is getting important in building the National Geoid-Based Vertical System. Ha Minh Hoa (2007) and Kotsakis et al. (2012) recommended a method, which estimates the geopotential value W0 of local geoid at the Zero Tide Gauge Station based on equations of relation between the local and global normal heights or between the local and global height anomalies at GPS/leveling points regularly located on the whole territory. The objective of this paper is to determine conditions for estimating the geopotential value W0 of local geoid at the Zero Tide Gauge Station accomplished for whole territory of Vietnam.
Keywords:
local mean sea level, sea surface topography, quasigeoid, global normal height, local normal height, global height anomaly, local height anomalyHow to Cite
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Copyright (c) 2013 The Author(s). Published by Vilnius Gediminas Technical University.
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Copyright (c) 2013 The Author(s). Published by Vilnius Gediminas Technical University.
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This work is licensed under a Creative Commons Attribution 4.0 International License.