Results 51 to 60 of about 269 (142)

Pioneer Venus Orbiter Observations of Solar Wind Driven Magnetosonic Waves Interacting With the Dayside Venusian Ionosphere

Geophysical Research Letters, Volume 51, Issue 12, 28 June 2024.
Abstract We use in situ plasma observations made by the Pioneer Venus Orbiter spacecraft to show for the first time that magnetosonic waves can couple the solar wind to the upper ionosphere and deposit energy there. The waves are generated upstream of Venus, are advected into the shock and propagate across the draped magnetic field, through the ...
C. M. Fowler, S. Ledvina, C. C. Chaston, M. Persson, R. Ramstad, J. Luhmann   +5 more
wiley   +1 more source

MAGPRIME: An Open‐Source Library for Benchmarking and Developing Interference Removal Algorithms for Spaceborne Magnetometers

Earth and Space Science, Volume 11, Issue 6, June 2024.
Abstract Magnetometers are essential instruments in space physics, but their measurements are often contaminated by various external interference sources. In this work, we present a comprehensive review of existing magnetometer interference removal methods and introduce MAGPRIME (MAGnetic signal PRocessing, Interference Mitigation, and Enhancement), an
Alex Paul Hoffmann, Mark B. Moldwin, Shun Imajo, Matthew G. Finley, Arie Sheinker   +4 more
wiley   +1 more source

Feasibility Analysis of Underwater Vehicle Detection Based on Homogeneous Ellipsoidal Hull Model Using Gravity Gradient

Journal of Marine Science and Engineering
In recent years, as underwater vehicles continue to improve their noise reduction capabilities, sonar-based detection has faced significant challenges, and non-acoustic detection has become a research focus.
Hexing Zheng, Jinguo Liu, Haitao Gu
doaj   +1 more source

Geoarchaeological investigations in Artanish Peninsula, Armenia: Testing a new geochemical prospecting method for archaeology

Archaeological Prospection, Volume 31, Issue 1, Page 3-22, January/March 2024.
Abstract Within the framework of an Armenian–German research project, taking place between 2019 and 2021 on the Artanish Peninsula at Lake Sevan (Armenia), in addition to numerous (geo‐) archaeological investigations, methods of geochemical prospection have been carried out. The ancient burial grounds of Artanish 23 and Artanish 29 have served as model
Arshavir Hovhannisyan, Arsen Bobokhyan, René Kunze, Jörg W. E. Fassbinder, Sandra E. Hahn, Dmitri Arakelyan, Avetis Grigoryan, Marianna Harutyunyan, Varduhi Siradeghyan   +8 more
wiley   +1 more source

Quiet Time Thermospheric Gravity Waves Observed by GOCE and CHAMP

Journal of Geophysical Research: Space Physics, Volume 129, Issue 1, January 2024.
Abstract The Gravity Field and Steady‐State Ocean Circulation Explorer (GOCE) and CHAllenging Minisatellite Payload (CHAMP) satellites measure in‐situ thermospheric density and cross‐track wind. When propagating obliquely to the satellite track in a horizontal plane (i.e., not purely along‐track or cross‐track), gravity waves (GWs) can be observed both
Shuang Xu, Sharon L. Vadas, Jia Yue
wiley   +1 more source

Precision atomic gravimeter based on Bragg diffraction

New Journal of Physics, 2013
We present a precision gravimeter based on coherent Bragg diffraction of freely falling cold atoms. Traditionally, atomic gravimeters have used stimulated Raman transitions to separate clouds in momentum space by driving transitions between two internal ...
P A Altin, M T Johnsson, V Negnevitsky, G R Dennis, R P Anderson, J E Debs, S S Szigeti, K S Hardman, S Bennetts, G D McDonald, L D Turner, J D Close, N P Robins   +12 more
doaj   +1 more source

Height unification using GOCE

Journal of Geodetic Science, 2012
With the gravity field and steady-state ocean circulation explorer (GOCE) (preferably combined with the gravity field and climate experiment (GRACE)) a new generation of geoid models will become available for use in height determination.
Rummel R.
doaj   +1 more source

GOCE gradients in various reference frames and their accuracies [PDF]

Advances in Geosciences, 2003
The objective of GOCE (Gravity Field and Steady-State Ocean Circulation Explorer) is the determination of the Earth’s gravity field with high spatial resolution.
J. Müller, M. Wermut
doaj  

Design of an Integrated MEMS Magnetic Gradiometer Rejecting Vibrations and Stray Fields

IEEE Journal of the Electron Devices Society
Magnetic sensors are often used near current-carrying wires or electrical motors generating significant magnetic interference. To mitigate the effects of these stray fields, the traditional design approach relies on a differential sensing scheme ...
Enrico Gasparin, Arno Hoogerwerf, Dara Bayat, Guido Spinola Durante, Yves Petremand, Maurizio Tormen, Michel Despont, Gael Close   +7 more
doaj   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source