Impacts of using the rigorous topographic gravity modeling method and lateral density variation model on topographic reductions and geoid modeling: a case study in …
M Lin, X Li - Surveys in Geophysics, 2022 - Springer
Until now, the prismatic mass approximation of the topography and the constant density
assumption have been mostly utilized in topographic reductions, which are rough …
assumption have been mostly utilized in topographic reductions, which are rough …
Data requirements for the determination of a sub-centimetre geoid
Recent applications in Earth sciences require geoid models to be determined with a sub-
centimetre internal error. Regional models of the geoid are usually determined using …
centimetre internal error. Regional models of the geoid are usually determined using …
Seafloor topography estimation from gravity anomaly and vertical gravity gradient using nonlinear iterative least square method
D Fan, S Li, X Li, J Yang, X Wan - Remote Sensing, 2020 - mdpi.com
Currently, seafloor topography inversion based on satellite altimetry gravity data provides
the principal means to predict the global seafloor topography. Researchers often use sea …
the principal means to predict the global seafloor topography. Researchers often use sea …
On the geoid–quasigeoid separation in mountain areas
The separation between the reference surfaces for orthometric heights and normal heights—
the geoid and the quasigeoid—is typically in the order of a few decimeters but can reach …
the geoid and the quasigeoid—is typically in the order of a few decimeters but can reach …
Gravimetric geoid modeling from the combination of satellite gravity model, terrestrial and airborne gravity data: a case study in the mountainous area, Colorado
T Jiang, Y Dang, C Zhang - Earth, Planets and Space, 2020 - Springer
Constructing a high-precision and high-resolution gravimetric geoid model in the
mountainous area is a quite challenging task because of the lack of terrestrial gravity …
mountainous area is a quite challenging task because of the lack of terrestrial gravity …
Estimation of the zero-height geopotential level W o LVD in a local vertical datum from inversion of co-located …
C Kotsakis, K Katsambalos, D Ampatzidis - Journal of geodesy, 2012 - Springer
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 …
task towards the connection of isolated physical height frames and their unification into a …
Comparison of different methods for estimating the geoid-to-quasi-geoid separation
I Foroughi, R Tenzer - Geophysical journal international, 2017 - academic.oup.com
In Molodensky's definition of the normal height, the mean normal gravity is computed
explicitly. In definition of the orthometric height, however, the actual mean gravity along the …
explicitly. In definition of the orthometric height, however, the actual mean gravity along the …
Towards a vertical datum standardisation under the umbrella of Global Geodetic Observing System
L Sánchez - Journal of Geodetic Science, 2012 - degruyter.com
Most of the existing height systems refer to local sea surface levels, are stationary (do not
consider variations in time), and realise different physical height types (orthometric, normal …
consider variations in time), and realise different physical height types (orthometric, normal …
The effect of anomalous global lateral topographic density on the geoid-to-quasigeoid separation
The geoid can be computed from the quasigeoid by applying the geoid-to-quasigeoid
separation. The geoid-to-quasigeoid separation is also needed for a vertical datum …
separation. The geoid-to-quasigeoid separation is also needed for a vertical datum …
A strict formula for geoid-to-quasigeoid separation
LE Sjöberg - Journal of geodesy, 2010 - Springer
The paper presented by Flury and Rummel (J Geod 83: 829–847, 2009) discusses an
important topographic correction to the traditional formula for the quasigeoid-to-geoid …
important topographic correction to the traditional formula for the quasigeoid-to-geoid …