Results 31 to 40 of about 80,733 (406)

An influence of the covariance between single orbit parameters on the accuracy of observations of the pseudo-ranges and phase differences

open access: yesMetrology and Measurement Systems, 2020
The possibilities to improve values of the satellite orbit elements by employing the pseudo-ranges and differences of carrier phase frequencies measured at many reference GPS stations are analysed. An improvement of orbit ephemeris is achieved by solving
Skeivalas Jonas   +3 more
doaj   +1 more source

Investigation of the Thiva 2020–2021 Earthquake Sequence Using Seismological Data and Space Techniques

open access: yesApplied Sciences, 2022
We investigate an earthquake sequence involving an Mw = 4.6 mainshock on 2 December 2020, followed by a seismic swarm in July–October 2021 near Thiva, Central Greece, to identify the activated structures and understand its triggering mechanisms. For this
George Kaviris   +14 more
doaj   +1 more source

The usage of geospatial tools in traffic sign detection [PDF]

open access: yesZbornik radova Departmana za geografiju, turizam i hotelijerstvo, 2023
The topic of this scientific paper is the detection of traffic signs based on the data obtained using modern geodetic methods (LiDAR, mobile laser scanning), by using geospatial tools.
Nikolić Natalija   +2 more
doaj   +1 more source

GEODESY, CARTOGRAPHY, AND AERIAL PHOTOGRAPHY

open access: yesGEODESY CARTOGRAPHY AND AERIAL PHOTOGRAPHY, 2021
The emergence of satellite observations was marked by their widespread use to determine the velocities and direction of horizontal motions of lithosphere plates (modern kinematics of lithosphere plates), which allowed to research the deformation ...
S. Doskich
semanticscholar   +1 more source

Seismology and geodesy of the sun: Solar geodesy [PDF]

open access: yesProceedings of the National Academy of Sciences, 1981
Measurements of the elliptical figure of the sun made in 1966 are analyzed on an hourly basis. This analysis yields an improved measure of the previously found solar distortion, rotating rigidly with a sidereal period of 12.38±0.10 days. It also yields a set of residùals used to search for signals due to low-frequency solar oscillations.
openaire   +3 more sources

A clock network for geodesy and fundamental science [PDF]

open access: yesNature Communications, 2015
Leveraging the unrivalled performance of optical clocks as key tools for geo-science, for astronomy and for fundamental physics beyond the standard model requires comparing the frequency of distant optical clocks faithfully.
C. Lisdat   +35 more
semanticscholar   +1 more source

Study of karst manifestations in Solotvyno based on aerial photography from a UAV

open access: yesReports on Geodesy and Geoinformatics, 2023
This article is devoted to the study of surface karst manifestations on the territory of inactive salt mines of Solotvyno, Transcarpathian region, Ukraine. The historical development of the salt mine from the moment of the creation of the first mine (the
Hlotov Volodymyr   +4 more
doaj   +1 more source

National Report to the International Association of Geodesy of the International Union of Geodesy and Geophysics 2015-2019 [PDF]

open access: yesGeoinf. Res. Papers, 2019, Vol. 7, No. 1, BS7003, GCRAS Publ., Moscow, 2019
In this National Report are given major results of researches conducted by Russian geodesists in 2015-2018 on the topics of the International Association of Geodesy (IAG) of the International Union of Geodesy and Geophysics (IUGG). This report is prepared by the Section of Geodesy of the National Geophysical Committee of Russia.
arxiv   +1 more source

Evolutionary dynamics on a regular networked structured and unstructured multi‐population

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView., 2023
Abstract In this paper, we study collective decision‐making in a multi‐population framework, where groups of individuals represent whole populations that interact by means of a regular network. Each group consists of a number of players and every player can choose between two options.
Wouter Baar   +2 more
wiley   +1 more source

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