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 …
The 5 mm geoid model for Estonia computed by the least squares modified Stokes's formula
A Ellmann, S Märdla, T Oja - Survey review, 2020 - Taylor & Francis
Computational stages of a new high-resolution 5 mm quasigeoid model for Estonia are
explained. Certain requirements for the quality and coverage of gravity data in the context of …
explained. Certain requirements for the quality and coverage of gravity data in the context of …
On the harmonic correction in the gravity field determination
The “non-harmonicity” problem in residual terrain modelling (RTM) is a challenging issue,
causing errors exceeding 200 mGal in the RTM gravity anomaly in rugged areas. Although …
causing errors exceeding 200 mGal in the RTM gravity anomaly in rugged areas. Although …
Geodetic SAR for Height System Unification and Sea Level Research—Results in the Baltic Sea Test Network
T Gruber, J Ågren, D Angermann, A Ellmann… - Remote Sensing, 2022 - mdpi.com
Coastal sea level is observed at tide gauge stations, which usually also serve as height
reference stations for national networks. One of the main issues with using tide gauge data …
reference stations for national networks. One of the main issues with using tide gauge data …
Contribution of GRAV-D airborne gravity to improvement of regional gravimetric geoid modelling in Colorado, USA
This paper studies the contribution of airborne gravity data to improvement of gravimetric
geoid modelling across the mountainous area in Colorado, USA. First, airborne gravity data …
geoid modelling across the mountainous area in Colorado, USA. First, airborne gravity data …
A numerical study of residual terrain modelling (RTM) techniques and the harmonic correction using ultra-high-degree spectral gravity modelling
Residual terrain modelling (RTM) plays a key role for short-scale gravity modelling in
physical geodesy, eg for interpolation of observed gravity and augmentation of global …
physical geodesy, eg for interpolation of observed gravity and augmentation of global …
Geoid modeling by the least squares modification of Hotine's and Stokes' formulae using non-gridded gravity data
The paper deals with geoid modeling using the least-squares modification of the Stokes' and
Hotine's formulae using gridded and non-gridded terrestrial gravity data over the Auvergne …
Hotine's formulae using gridded and non-gridded terrestrial gravity data over the Auvergne …
Validation of marine geoid models by utilizing hydrodynamic model and shipborne GNSS profiles
An essential role of the FAMOS international cooperation project is to obtain new marine
gravity observations over the Baltic Sea for improving gravimetric geoid modelling. To …
gravity observations over the Baltic Sea for improving gravimetric geoid modelling. To …
Accurate sea surface heights from Sentinel-3A and Jason-3 retrackers by incorporating high-resolution marine geoid and hydrodynamic models
M Mostafavi, N Delpeche-Ellmann… - Journal of Geodetic …, 2021 - degruyter.com
One of the major challenges of satellite altimetry (SA) is to produce accurate sea surface
heights data up to the shoreline, especially in geomorphologically complex sea areas. New …
heights data up to the shoreline, especially in geomorphologically complex sea areas. New …
Geodetic SAR for height system unification and sea level research—Observation concept and preliminary results in the Baltic Sea
T Gruber, J Ågren, D Angermann, A Ellmann… - Remote Sensing, 2020 - mdpi.com
Traditionally, sea level is observed at tide gauge stations, which usually also serve as height
reference stations for national leveling networks and therefore define a height system of a …
reference stations for national leveling networks and therefore define a height system of a …