NDLI: Estimation of the zero-height geopotential level WoLVD in a local vertical datum from inversion of co-located GPS, leveling and geoid heights: a case study in the Hellenic islands

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Estimation of the zero-height geopotential level WoLVD in a local vertical datum from inversion of co-located GPS, leveling and geoid heights: a case study in the Hellenic islands

Content Provider	Semantic Scholar
Author	Kotsakis, Christopher Katsambalos, Kostas Ampatzidis, Dimitrios
Copyright Year	2011
Abstract	The estimation of the zero-height geopotential level of a local vertical datum (LVD) is a key task towards the connection of isolated physical height frames and their unification into a common vertical reference system. Such an estimate resolves, in principle, the ‘ambiguity’ of a traditional crust-fixed LVD by linking it with a particular equipotential surface of Earth’s gravity field under the presence of an external geopotential model. The aim of this paper is to study the estimation scheme that can be followed for solving the aforementioned problem based on the joint inversion of co-located GPS and leveling heights in conjunction with a fixed Earth gravity field model. Several case studies with real data are also presented that provide, for the first time, precise estimates of the LVD offsets for a number of Hellenic islands across the Aegean and Ionian Sea.
Starting Page	423
Ending Page	439
Page Count	17
File Format	PDF HTM / HTML
DOI	10.1007/s00190-011-0530-7
Volume Number	86
Alternate Webpage(s)	http://users.auth.gr/kvek/2011_jofgeod_w0.pdf
Alternate Webpage(s)	https://doi.org/10.1007/s00190-011-0530-7
Journal	Journal of Geodesy
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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