Results 21 to 30 of about 89,813 (296)
On a possible connection between Chandler wobble and dark matter [PDF]
, 2009 Chandler wobble excitation and damping, one of the open problems in geophysics, is treated as a consequence in part of the interaction between Earth and a hypothetical oblate ellipsoid made of dark matter.
Portilho, Oyanarte
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Atmospheric Excitation of Polar Motion [PDF]
International Astronomical Union Colloquium, 2000 AbstractVariations in the angular momentum of the atmosphere in the equatorial plane due to shifts in air mass distribution and changing winds impact the orientation of Earth so that motions of the pole occur on a broad range of time scales. The wind terms have notable diurnal fluctuations, which appear as a tidal signature. Subseasonal fluctuations of
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Remote Sensing, 2020 The Gravity Recovery and Climate Experiment (GRACE) mission has provided global observations of temporal variations in the gravity field resulting from mass redistribution at the surface and within the Earth for the period 2002–2017.
Justyna Śliwińska +2 more
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Further evidence for oceanic excitation of polar motion [PDF]
Geophysical Journal International, 1999 SUMMARY While the role of the atmosphere in driving variations in polar motion is well established, the importance of the oceans has been recognized only recently. Further evidence for the role of the oceans in the excitation of polar motion is presented.
J. Nastula, R. M. Ponte
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Advanced magneto-optical microscopy: Imaging from picoseconds to centimeters - imaging spin waves and temperature distributions (invited) [PDF]
, 2015 © 2016 Author(s).Recent developments in the observation of magnetic domains and domain walls by wide-field optical microscopy based on the magneto-optical Kerr, Faraday, Voigt, and Gradient effect are reviewed.
Deldar, S +7 more
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Remote Sensing, 2020 From 2002 to 2017, the Gravity Recovery and Climate Experiment (GRACE) mission’s twin satellites measured variations in the mass redistribution of Earth’s superficial fluids, which disturb polar motion (PM).
Jolanta Nastula, Justyna Śliwińska
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El Niño impact on atmospheric polar motion excitation [PDF]
Journal of Geophysical Research: Solid Earth, 2000 We study the influences of El Niño phenomena on correlations between short‐period variations of atmospheric and geodetic excitation functions of polar motion during 1980–1998. The correlation between these two excitation functions varies with time, with correlation coefficients computed for 1 year spans reaching maxima of 0.7–0.8.
B. Kolaczek +3 more
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Nanomechanics of a Hydrogen Molecule Suspended between Two Equally Charged Tips [PDF]
, 2019 Geometric configuration and energy of a hydrogen molecule centered between two point-shaped tips of equal charge are calculated with the variational quantum Monte-Carlo (QMC) method without the restriction of the Born-Oppenheimer (BO) approximation ...
Frederiksen, T. +3 more
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Long‐term polar motion excited by ocean thermal expansion [PDF]
Geophysical Research Letters, 2009 Ocean warming is commonly considered unable to excite significant long‐term trends in polar motion. Here, however, we argue that this assumption needs to be revised. We demonstrate that steric sea level rise leads to a distinct pattern of horizontal mass redistribution within ocean basins and hence to ocean bottom pressure changes that alter Earth's ...
Felix W. Landerer +2 more
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Remote Sensing, 2019 This study evaluates the gravity field solutions based on high-low satellite-to-satellite tracking (hl-SST) of low-Earth-orbit (LEO) satellites: GRACE, Swarm, TerraSAR-X, TanDEM-X, MetOp-A, MetOp-B, and Jason 2, by converting them into hydrological polar
Justyna Śliwińska, Jolanta Nastula
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