Results 11 to 20 of about 9,341 (230)

Geoids in general relativity: geoid quasilocal frames [PDF]

open access: yesClassical and Quantum Gravity, 2016
24 pages, 8 figures; v2: reference added; v3: introduction clarified, reference ...
Oltean, Marius   +3 more
openaire   +3 more sources

Geoid or Quasi-Geoid? A Short Comparison

open access: yes, 2023
AbstractThis article is a short introduction to the debate on choosing the geoid and orthometric heights or the quasi-geoid and normal heights as the vertical coordinate system. It mainly compiles some more or less already known facts for comparing the two systems.
Sjöberg, Lars E., Abrehdary, Majid
openaire   +2 more sources

Pemodelan Geoid Gravimetrik Pulau Jawa dengan Metode Fast Fourier Transform Menggunakan Data Gayaberat Airborne, Terestris, dan Model Geoid Global GOCO06s

open access: yes, 2023
Geoid merupakan acuan referensi vertikal yang digunakan di Indonesia menurut Peraturan Pemerintah No. 45 Tahun 2021. Geoid menggantikan mean sea level (msl) sebagai referensi vertikal karena sifat dari msl yang memiliki pengaruh langsung terhadap ...
Sulaiman, Mukhammad Nur   +2 more
core   +1 more source

Pembuatan Model Geoid Lokal Menggunakan Data Gayaberat Airborne dan Model Geoid Global (EGM2008) (Studi Kasus: Pulau Bali)

open access: yes, 2022
Sistem GPS (Global Positioning System) sudah banyak diaplikasikan, terutama yang terkait dengan aplikasi-aplikasi yang menuntut informasi tentang posisi. Geoid merupakan permukaan dasar geodesi fisik yang didefinisikan sebagai permukaan ekipotensial yang
Kusum, Muhammad Rafly Putra   +2 more
core   +1 more source

Airborne geoid determination [PDF]

open access: yesEarth, Planets and Space, 2014
Airborne geoid mapping techniques may provide the opportunity to improve the geoid over vast areas of the Earth, such as polar areas, tropical jungles and mountainous areas, and provide an accurate “seam-less” geoid model across most coastal regions. Determination of the geoid by airborne methods relies on the development of airborne gravimetry, which ...
Forsberg, R.   +5 more
openaire   +2 more sources

tsutterley/geoid-toolkit: v1.1.1

open access: yes, 2022
feat: added field_mapping options to netCDF4 and HDF5 reads (https://github.com/tsutterley/geoid-toolkit/pull/18) docs: slimmer build to prevent rtd memory overutilization (https://github.com/tsutterley/geoid-toolkit/pull/19, https://github.com ...
Tyler Sutterley
core   +1 more source

The Mexican gravimetric geoid: xGGM23

open access: yes, 2023
The gravimetric geoid model xGGM23 was computed at the University of New Brunswick, Canada, with the aim to update the national geoid for Mexico, as well as to contribute to the construction of the regional geoid for North and Central America ...
Avalos Naranjo, David
core   +1 more source

Utilizing Airborne LiDAR and UAV Photogrammetry Techniques in Local Geoid Model Determination and Validation

open access: yesISPRS International Journal of Geo-Information, 2020
This investigation evaluates the performance of digital terrain models (DTMs) generated in different vertical datums by aerial LiDAR and unmanned aerial vehicle (UAV) photogrammetry techniques, for the determination and validation of local geoid models ...
Serdar Erol   +3 more
doaj   +1 more source

Pot do novega modela geoida v Sloveniji ( = Towards a new geoid model of Slovenia) [PDF]

open access: yesGeodetski Vestnik, 2017
The geoid model is a component of the national coordinate system. This paper presents the main concept and role of the geoid within geodesy and other geo-sciences.
Miran Kuhar
doaj   +1 more source

Unified Land–Ocean Quasi-Geoid Computation from Heterogeneous Data Sets Based on Radial Basis Functions

open access: yesRemote Sensing, 2022
The determination of the land geoid and the marine geoid involves different data sets and calculation strategies. It is a hot issue at present to construct the unified land–ocean quasi-geoid by fusing multi-source data in coastal areas, which is of great
Yusheng Liu, Lizhi Lou
doaj   +1 more source

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