Results 1 to 10 of about 33,443 (302)
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 ...
Guillermo Valdés +2 more
exaly +5 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 +5 more sources
Magma chambers: what we can, and cannot, learn from volcano geodesy
Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2019 Geodetic observations on volcanoes can reveal important aspects of crustal magma chambers. The rate of decay of deformation with distance reflects the centroid depth of the chamber.
Paul Segall
exaly +2 more sources
Geodesy Discipline: Progress and Perspective [PDF]
Journal of Geodesy and Geoinformation Science, 2021 The geodesy discipline has been evolving and constantly intersecting and merging with other disciplines in the last 50 years, due to the continuous progress of geodetic observation techniques and expansion of application fields.
Yibin YAO,Yuanxi YANG,Heping SUN,Jiancheng LI
doaj +1 more source
Recent Advances in Marine Geodesy of China [PDF]
Journal of Geodesy and Geoinformation Science, 2023 The ocean accounts for approximately 71% of the total area of the Earth. Whether it is studying the shape of the Earth itself through geodesy or the future development of earth system science, strengthening the construction of ocean geodesy disciplines ...
Shuqiang XUE, Tianhe XU, Yanxiong LIU, Anmin ZENG, Baogui KE, Shuang ZHAO
doaj +1 more source
A simplified gravitational reference sensor for satellite geodesy [PDF]
Journal of Geodesy, 2021 A simplified gravitational reference sensor (S-GRS) is an ultra-precise inertial sensor for future Earth geodesy missions. These sensors measure or compensate for all non-gravitational accelerations of the host spacecraft to remove them in the data ...
A. Álvarez +18 more
semanticscholar +1 more source
Geodesy of irregular small bodies via neural density fields
Communications Engineer, 2022 Asteroids’ and comets’ geodesy is a challenging yet important task for planetary science and spacecraft operations, such as ESA’s Hera mission tasked to look at the aftermath of the recent NASA DART spacecraft’s impact on Dimorphos.
D. Izzo, P. G'omez
semanticscholar +1 more source
Atomic clock performance enabling geodesy below the centimetre level [PDF]
Nature, 2018 The passage of time is tracked by counting oscillations of a frequency reference, such as Earth’s revolutions or swings of a pendulum. By referencing atomic transitions, frequency (and thus time) can be measured more precisely than any other physical ...
W. McGrew +22 more
semanticscholar +1 more source
Geodesy, Geophysics and Fundamental Physics Investigations of the BepiColombo Mission
Space Science Reviews, 2021 In preparation for the ESA/JAXA BepiColombo mission to Mercury, thematic working groups had been established for coordinating the activities within the BepiColombo Science Working Team in specific fields.
A. Genova +17 more
semanticscholar +1 more source
Remote Sensing, 2022 Like gravitational wave detection, inter-spacecraft geodesy is a measurement of gravitational tidal accelerations deforming a constellation of two or more orbiting reference test masses (TM).
W. Weber +5 more
semanticscholar +1 more source