Results 21 to 30 of about 86,799 (386)
ROMY: a multicomponent ring laser for geodesy and geophysics
Geophysical Journal International, 2021 Single-component ring lasers have provided high-resolution observations of Earth’s rotation rate as well as local earthquake- or otherwise-induced rotational ground motions.
H. Igel +15 more
semanticscholar +1 more source
Journal of Geodesy, 2021 We have developed a broadband VLBI (very long baseline interferometry) system inspired by the concept of the VLBI Global Observing System (VGOS). The new broadband VLBI system was implemented in the Kashima 34 m antenna and in two transportable stations ...
M. Sekido +24 more
semanticscholar +1 more source
Cosmic Geodesy Contribution to Geodynamics Monitoring
IOP Conference Series: Earth and Environment, 2021 The cosmic geodesy provides methods and ways of various data acquisition. The collected data may be used for research, calculations and analysis in different fields of interest.
Dáša Bačová +2 more
semanticscholar +1 more source
GEODESY, CARTOGRAPHY, AND AERIAL PHOTOGRAPHY
GEODESY 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
Metrology 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
Applied 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
Application of the Allan Variance to Time Series Analysis in Astrometry and Geodesy: A Review [PDF]
, 2016 The Allan variance (AVAR) was introduced 50 years ago as a statistical tool for assessing of the frequency standards deviations. For the past decades, AVAR has increasingly being used in geodesy and astrometry to assess the noise characteristics in ...
Malkin, Zinovy
core +2 more sources
A clock network for geodesy and fundamental science [PDF]
Nature 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
Seismology and geodesy of the sun: Solar geodesy [PDF]
Proceedings 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