Results 11 to 20 of about 17,801 (223)

Advances in Venezuelan geodetic datum transformations between La Canoa and the geocentric WGS-84 reference system

open access: greenRevista Técnica de la Facultad de Ingeniería, 2010
New calculations related to the determination of transformation parameters between the national geodetic (La Canoa-Hayford) and the geocentric satellite datum WGS-84, used as reference system for GPS coordinates, are analysed.
Melvin Hoyer   +4 more
doaj   +1 more source

RESEARCH AND IMPLEMENTATION OF GEODETIC DATABASE SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
With the gradual formation of the space technical system of National Geodetic Datum, the storage management and application services of the geodetic data have been developing rapidly.
Y. S. Wang   +3 more
doaj   +1 more source

A Method to Construct Depth Datum Geodesic Height Model for GNSS Bathymetric Survey

open access: yesJournal of Marine Science and Engineering, 2022
Water depth measurement requires the establishment of one or more tidal stations in the survey area for synchronous water level observation, and finally the water depth is estimated to the depth datum.
Chenyang Tian   +5 more
doaj   +1 more source

Analysis of a Relative Offset between the North American and the Global Vertical Datum in Gravity Potential Space

open access: yesRemote Sensing, 2023
The accurate estimation of the zero-height geopotential level in a local vertical datum (LVD) is critical for linking traditional height reference systems to a global height system.
Dongmei Guo, Zhixin Xue
doaj   +1 more source

Določitev novega višinskega datuma Slovenije (=Determination of the new vertical datum of Slovenia) [PDF]

open access: yesGeodetski Vestnik, 2019
In this article, an overview of the height geodetic data of Slovenia that were determined on a basis of observations from various tide gauges along the Adriatic coast is presented.
Oskar Sterle, Božo Koler
doaj   +1 more source

The review and development of a modern GNSS network and datum in Uzbekistan

open access: yesGeodesy and Geodynamics, 2017
This study is focused on the discussion of a modern GNSS network and datum in Uzbekistan. Considering the significance difference (up to 200 m) in positions of the local ellipsoidal datum and the global datum, the precise transformation parameters ...
Dilbarkhon Fazilova
doaj   +1 more source

Estimation of strain accumulation of densification network in Northern Marmara Region, Turkey [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2010
Strain analysis is one of the methods for the kinematic analysis of the repeated geodetic measurements. In order to derive strain accumulation in Marmara Region, different institutions carried out several Global Positioning System (GPS) campaigns in 1999
I. Deniz, H. Ozener
doaj   +1 more source

Modified method of deformation analysis according to the Munich approach

open access: yesGeodetski Vestnik, 2023
Despite the technical progress monitoring the stability of engineering structures remains one of the most difficult tasks in engineering geodesy. This article presents the deformation analysis according to the Munich approach of W. M. Welsch.
Simona Savšek, Tomaž Ambrožič
doaj   +1 more source

Advancements of Geodetic Activities in Nepal: A Review on Pre- and Post-2015 Gorkha Earthquake Eras with Future Directions

open access: yesRemote Sensing, 2022
From celestial objects to every feature on Earth, geodesy provides a reference frame and is the foundation for surveying, mapping, and other geoscience activities.
Shanker KC, Tri Dev Acharya
doaj   +1 more source

Estimation of vertical datum offset for the South African vertical datum, in relation to the international height reference system [PDF]

open access: yesGeodetski 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

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