Gravimetric Model of Quasigeoid in the Area of Slovakia [PDF]
Acta Montanistica Slovaca, 2005 The gravimetric model of quasigeoid in the area of Slovakia was determined by using the revised and homogenised gravity mapping data in the scale of 1:25 000 from the area of Slovakia, and by using the mean Bouguer gravity anomalies with the resolution ...
Juraj Papčo +2 more
doaj +3 more sources
Australian quasigeoid modelling: Review, current status and future plans [PDF]
Terrestrial, Atmospheric and Oceanic Sciences, 2021 We provide a historical review and critique of regional geoid and quasigeoid modelling over the Australian continent, covering the earliest models from the late 1960s through to the present day and beyond. The most recently released official model for GPS/GNSS surveyors, AUSGeoid2020, was specifically calculated to enable them to determine Australian ...
McCubbine, J.C. +2 more
openaire +5 more sources
Estimating the geopotential value W0 of the local geoid based on data from local and global normal heights of GPS/leveling points in Vietnam [PDF]
Geodesy and Cartography, 2013 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
doaj +3 more sources
Kakovost določitve nadmorskih višin z GNSS-višinomerstvom na območju Ljubljane (= Quality determination of mean sea level heights with GNSS levelling on the Ljubljana city area) [PDF]
Geodetski Vestnik, 2021 This paper describes the quality determination of heights above mean sea level using RTK GNSS-levelling and new height reference surface SLO_VRP2016/Koper on the city area of Ljubljana.
Miran Kuhar, Robert Brglez, Božo Koler
doaj +1 more source
Review of the Research Progress on Static Earth Gravity Field and Vertical Datum in China during 2019—2023 [PDF]
Journal of Geodesy and Geoinformation Science, 2023 The contribution presents the representative research progress on global static gravity field modeling, regional geoid/quasigeoid determination, vertical datum study, as well as the theory, algorithm and software for gravity field study in China from ...
Tao JIANG, Xinyu XU, Yonghai CHU, Taoyong JIN, Wei LIANG, Yihao WU, Yanguang FU, Yongqi ZHAO, Xinwei GUO
doaj +1 more source
Journal of Geodetic Science, 2023 New gravity and precise levelling measurements have been performed throughout the Hong Kong territories to modernize a vertical geodetic datum that is currently realized by heights of levelling benchmarks defined in the Hong Kong Principal Datum (HKPD ...
Čunderlík Robert +5 more
doaj +1 more source
The Photogrammetric Record, Volume 37, Issue 179, Page 285-305, September 2022., 2022 This paper aims to study and quantify the induced error due to the deflection of verticals (DOV) when integrating different sensors, focusing on GNSS and INS for 3D mapping in airborne mapping. It is shown that the DOV effect should be considered for direct georeferencing because the DOV components are in the order of (or larger than) INS uncertainty ...
Mohammad Bagherbandi +3 more
wiley +1 more source
Approximations, Errors, and Misconceptions in the Use of Map Projections
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 Global geodetic techniques currently can provide the user with worldwide millimeter accuracy. Preservation of this degree of accuracy in derived products is far from straightforward and may leave vast room for trouble in the different steps involved in the collection, storing, processing, analysis, and delivering of geospatial information.
Sergio Baselga +2 more
wiley +1 more source
Estimation of vertical datum offset for the South African vertical datum, in relation to the international height reference system [PDF]
Geodetski Vestnik, 2021 The vertical offset and the geopotential value over South Africa is estimated on the four fundamental benchmarks in relation to the international height reference system (IHRS).
Matthews Siphiwe Mphuthi +1 more
doaj +1 more source
Use of the UNB_TopoDens model for local modelling of chosen gravity field parameters in the Western Carpathians [PDF]
, 2020 The latest, global density model of topographical masses (UNB TopoDms model) was used to determine complete Bouguer anomalies and the differences between geoid undulations and height anomalies in an area of the Western Carpathians, within the Polish ...
Jamroz, Olgierd +2 more
core +1 more source