Results 1 to 10 of about 78,532 (405)
A new laser-ranged satellite for General Relativity and space geodesy: I. An introduction to the LARES2 space experiment [PDF]
Eur. Phys. J. Plus (2017) 132: 336, 2019 We introduce the LARES 2 space experiment recently approved by the Italian Space Agency (ASI). The LARES 2 satellite is planned for launch in 2019 with the new VEGA C launch vehicle of ASI, ESA and ELV. The orbital analysis of LARES 2 experiment will be carried out by our international science team of experts in General Relativity, theoretical physics,
I. Ciufolini +10 more
arxiv +6 more sources
Optomechanical Accelerometers for Geodesy [PDF]
Remote Sensing, 2022 We present a novel optomechanical inertial sensor for low-frequency applications and corresponding acceleration measurements. This sensor has a resonant frequency of 4.715 (1) Hz, a mechanical quality factor of 4.76(3) × 105, a test mass of 2.6 g, and a ...
A. Hines +6 more
semanticscholar +4 more sources
Operational significance of the deviation equation in relativistic geodesy [PDF]
E. Grafarend (eds), Encyclopedia of Geodesy. Encyclopedia of Earth
Sciences Series. Springer, Cham, 2019, 2019 Deviation equation: Second order differential equation for the 4-vector which measures the distance between reference points on neighboring world lines in spacetime manifolds. Relativistic geodesy: Science representing the Earth (or any planet), including the measurement of its gravitational field, in a four-dimensional curved spacetime using ...
FAE Pirani +7 more
arxiv +3 more sources
REVEL: A model for Recent plate velocities from space geodesy
Journal of Geophysical Research, 2002 [1] We present a new global model for Recent plate velocities, REVEL, describing the relative velocities of 19 plates and continental blocks. The model is derived from publicly available space geodetic (primarily GPS) data for the period 1993–2000.
Timothy H Dixon
exaly +4 more sources
Atomic clocks for geodesy [PDF]
Reports on Progress in Physics, 2018 We review experimental progress on optical atomic clocks and frequency transfer, and consider the prospects of using these technologies for geodetic measurements.
T. E. Mehlstäubler +4 more
semanticscholar +6 more sources
National Report for the IAG of the IUGG 2019-2022 [PDF]
Geoinf. Res. Papers, 2023, Vol. 11, No. 1, id. BS1002, pp. 1-69, 2023 Major results of researches conducted by Russian geodesists in 2019-2022 on the topics of the International Association of Geodesy (IAG) of the International Union of Geodesy and Geophysics (IUGG) are presented in this issue. This report is prepared by the Section of Geodesy of the National Geophysical Committee of Russia.
Dokukin, P. +14 more
arxiv +3 more sources
Atomic clocks: new prospects in metrology and geodesy [PDF]
arXiv, 2013 We present the latest developments in the field of atomic clocks and their applications in metrology and fundamental physics. In the light of recent advents in the accuracy of optical clocks, we present an introduction to the relativistic modelization of frequency transfer and a detailed review of chronometric geodesy.
Delva, Pacôme, Lodewyck, Jérôme
arxiv +3 more sources
Space geodesy constrains ice age terminal deglaciation: The global ICE‐6G_C (VM5a) model
Journal of Geophysical Research: Solid Earth, 2015 A new model of the last deglaciation event of the Late Quaternary ice age is here described and denoted as ICE‐6G_C (VM5a). It differs from previously published models in this sequence in that it has been explicitly refined by applying all of the ...
W Richard Peltier, Donald F Argus
exaly +2 more sources
Interpretation of geodesy experiments in non-Newtonian theories of gravity [PDF]
Classical and quantum gravity, 2018 The tests of the deviations from Newton's or Einstein's gravity in the Earth neighbourhood are tied to our knowledge of the shape and mass distribution of our planet. On the one hand estimators of these "modified" theories of gravity may be explicitly Earth-model-dependent whilst on the other hand the Earth gravitational field would act as a systematic
J. Berg'e +3 more
arxiv +3 more sources