Results 31 to 40 of about 733,426 (347)

On the existence of neutral directions of the normal gravity field

open access: yesContributions to Geophysics and Geodesy, 2014
A neutral direction of a gravity field is a direction along which the components of the gravity vector remain locally unchanged. A neutral point is a point at which there exists a neutral direction.
Gerassimos MANOUSSAKIS, Paraskevas MILAS
doaj   +1 more source

Optimisation of Lilla Edet Landslide GPS Monitoring Network

open access: yesJournal of Geodetic Science, 2015
Since the year 2000, some periodic investigations have been performed in the Lilla Edet region to monitor and possibly determine the landslide of the area with GPS measurements.
Alizadeh-Khameneh M. A.   +2 more
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

Future Satellite Gravimetry for Geodesy

open access: yesEarth, Moon, and Planets, 2004
After GRACE and GOCE there will still be need and room for improvement of the knowledge (1) of the static gravity field at spatial scales between 40 km and 100 km, and (2) of the time varying gravity field at scales smaller than 500 km. This is shown based on the analysis of spectral signal power of various gravity field components and on the ...
Flury, J., Rummel, R.
openaire   +4 more sources

Earth rotation variations observed by VLBI and the Wettzell “G” ring laser during the CONT17 campaign [PDF]

open access: yesAdvances in Geosciences, 2019
The VLBI (Very Long Baseline Interferometry) technique can provide the full set of parameters needed for the transformation between celestial and terrestrial reference frames with high accuracy.
S. Böhm   +5 more
doaj   +1 more source

Fracture behaviour of alloys for a new laser ranged satellite [PDF]

open access: yes, 2018
A new laser-ranged satellite called LARES 2 (Laser Relativity Satellite 2) has been recently designed for accurate tests of Einsten's theory of General Relativity and space geodesy.
Brotzu, A.   +4 more
core   +1 more source

Geodetic and Geodynamic Studies at Department of Geodesy and Geodetic Astronomy Wut

open access: yesReports on Geodesy and Geoinformatics, 2016
The article presents current issues and research work conducted in the Department of Geodesy and Geodetic Astronomy at the Faculty of Geodesy and Cartography at Warsaw University of Technology. It contains the most important directions of research in the
Brzeziński Aleksander   +13 more
doaj   +1 more source

Chameleon gravity and satellite geodesy [PDF]

open access: yesAstrophysics and Space Science, 2014
13 pages; to appear in Astrophys.Space ...
openaire   +3 more sources

Refinement of the normal E¨otv¨os matrix and its influence on the estimation of the deflections of the vertical

open access: yesContributions to Geophysics and Geodesy, 2015
The elements of the Eötvös matrix, usually determined by torsion balance measurements, are useful in many geodetic applications. We present a method for the computation of the elements of the normal Eötvös matrix at a point on the Earth’s physical ...
Gerassimos MANOUSSAKIS   +1 more
doaj   +1 more source

Benefits of Multi-Constellation/Multi-Frequency GNSS in a Tightly Coupled GNSS/IMU/Odometry Integration Algorithm

open access: yesSensors, 2018
Localization algorithms based on global navigation satellite systems (GNSS) play an important role in automotive positioning. Due to the advent of autonomously driving cars, their importance is expected to grow even further in the next years ...
Björn Reuper   +2 more
doaj   +1 more source

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