Results 51 to 60 of about 2,662 (199)
External calibration of GOCE data using regional terrestrial gravity data
Geodesy and Geodynamics, 2012 This paper reports on a study of the methodology of external calibration of GOCE data, using regional terrestrial-gravity data. Three regions around the world are selected in the numerical experiments. The result indicates that this calibration method is
Wu Yunlong +3 more
doaj +1 more source
Space Weather, Volume 23, Issue 1, January 2025.Abstract The navigation and radio communication systems experience significant disruptions due to post‐sunset equatorial ionospheric irregularities. There is ongoing debate regarding the impact of meridional/trans‐equatorial wind speed on these irregularities, though it is widely agreed that the Pre‐Reversal Enhancement (PRE) plasma vertical drift ...
Bantayehu Aderaw, Melessew Nigussie
wiley +1 more source
Archaeological Prospection, Volume 31, Issue 4, Page 403-418, October/December 2024.Abstract Part of Canadian history that is now being addressed is the legacy of Indian residential schools (IRSs) and closely related institutions. For most of their 200‐year‐plus history, these were run by various churches or religious organizations, and many were directly funded (and eventually run) by government.
Brian Whiting
wiley +1 more source
Gradiometry and gravitomagnetic field detection [PDF]
, 1989 Gravitomagnetism was apparently first introduced into physics about 120 years ago when major developments in electrodynamics and the strong similarity between Coulomb's law of electricity and Newton's law of gravity led to the hypothesis that mass ...
Mashhoon, Bahram
core +1 more source
Towards Constraining Parity-Violations in Gravity with Satellite Gradiometry
, 2019 Parity violation in gravity, if existed, could have important implications, and it is meaningful to search and test the possible observational effects.
Qiang, Li-E, Wang, Zhi, Xu, Peng
core +1 more source
GOCE, la Ferrari dei satelliti
GEOmedia, 2009 GOCE, a "Ferrari" between satellites GOCE is a new exciting European Space Agency mission within the Living Earth programme. The design of the satellite and its sensor, the Electrostatic Gravity Gradiometer, are intimately linked to produce the most ...
Fabrizio Bernardini
doaj +2 more sources
Comparison of numerical solution strategies for gravity field recovery from GOCE SGG observations implemented on a parallel platform [PDF]
Advances in Geosciences, 2003 The recovery of a full set of gravity field parameters from satellite gravity gradiometry (SGG) is a huge numerical and computational task. In practice, parallel computing has to be applied to estimate the more than 90 000 harmonic coefficients ...
R. Pail, G. Plank
doaj
On the computation of crustal induced gravity signal at a typical low Earth orbiter altitude
Journal of Geodetic Science, 2012 The recent release of crustal digital databases, which offer in a global unified resolution the structure (geometry) and consistency (density)of a distinct number of layers stretching from the variations of the visible topography and bathymetry ...
Tsoulis D., Venesis C.
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The Benefits of Future Quantum Accelerometers for Satellite Gravimetry
Earth and Space Science, Volume 11, Issue 9, September 2024.Abstract We investigate the benefits of future quantum accelerometers based on cold atom interferometry (CAI) on current and upcoming satellite gravity mission concepts. These mission concepts include satellite‐to‐satellite tracking (SST) in a single‐pair (GRACE‐like) and double‐pair constellation as well as satellite gravity gradiometry (SGG, single ...
P. Zingerle +6 more
wiley +1 more source
Performance Evaluation and Requirements Assessment for Gravity Gradient Referenced Navigation
Sensors, 2015 In this study, simulation tests for gravity gradient referenced navigation (GGRN) are conducted to verify the effects of various factors such as database (DB) and sensor errors, flight altitude, DB resolution, initial errors, and measurement update rates
Jisun Lee, Jay Hyoun Kwon, Myeongjong Yu
doaj +1 more source