Results 171 to 180 of about 91,577 (233)

An Improved Equivalent Circuit for Electric Field Sensors in Geophysical Exploration

Geophysical Prospecting, Volume 73, Issue 8, October 2025.
ABSTRACT In electromagnetic measurements, electric field sensors consist of two halves, with remote electrodes of negative and positive polarity coupled through wires and low pass filters to the differential inputs of an analogue‐to‐digital converter; the electrical ground of the analogue‐to‐digital converter is connected to the ground through a ...
Thomas Kalscheuer, Uwe Zimmermann, Henrik Sparr, Anton Palm Ekspong, Alexander Lindblad   +4 more
wiley   +1 more source

Two distinct current systems in the ionosphere of Mars. [PDF]

Nat Commun
Gao J, Li S, Mittelholz A, Rong Z, Persson M, Shi Z, Lu H, Zhang C, Wang X, Dong C, Klinger L, Cui J, Wei Y, Pan Y.   +13 more
europepmc   +1 more source

Equatorward Wind Driven Significant Upwelling of Ca+ Layer Over Middle Latitude During the November 2023 Strong Geomagnetic Storm

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Metallic ions deposited in the Earth's atmosphere by meteoric ablation primarily occur below 105 km altitude, and sometimes could ascend to the F region altitude ∼200 km under geomagnetic quiet conditions. With the Mohe (122.3°E, 53.5°N, magnetic latitude 54.8°) lidar, we present the first observation of Ca+ layer upwelling from E to F region ...
Jing Jiao, Wenjie Sun, Lifang Du, Guotao Yang, Guozhu Li, Biqiang Zhao, Fang Wu, Wenbo Li, Haoran Zheng, Yuchang Xun, Xiaofei Wu, Chunxiao Yan, Yajun Zhu   +12 more
wiley   +1 more source

Phase space electron hole in the Venusian upper mantle boundary. [PDF]

Sci Rep
Gamal A, Moslem WM, Yousef MS, Ellithi AY.   +3 more
europepmc   +1 more source

Aerosol growth in Titan’s ionosphere

Proceedings of the National Academy of Sciences of the United States of America, 2013
P. Lavvas, R. Yelle, T. Koskinen, A. Bazin, V. Vuitton, E. Vigren, M. Galand, A. Wellbrock, A. Coates, J. Wahlund, F. Crary, D. Snowden   +11 more
semanticscholar   +1 more source

Tropical Tropopause Layer Evolution During QBO Disruptions

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 18, 28 September 2025.
Abstract The tropical tropopause layer (TTL) is studied during 2015/16 and 2019/20 quasi‐biennial oscillation (QBO) disruption events using GNSS‐RO and SWOOSH satellite observations and the ERA5 reanalysis. By compositing temperature, water vapor, and tropical upwelling during different phases of QBO and QBO disruptions (XQBO), we show that XQBO events
Lan Luan, Paul W. Staten, William J. Randel, Ying‐Hwa Kuo   +3 more
wiley   +1 more source

Geomagnetic storm simulation with a Coupled magnetosphere-ionosphere-thermosphere model

, 2013
J. Raeder, Yongli Wang, T. Fuller‐Rowell   +2 more
semanticscholar   +1 more source

Weak and Shallow Secondary Frictional Faults Revealed by Large Earthquakes in Haiti

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Geological, geodetic, and seismological observations show that large earthquakes damage the crust surrounding the main rupture and, sometimes, activate nearby, smaller, secondary faults. However, the long‐term tectonic role of such secondary faults and their behavior in response to earthquakes or tectonic loading are unclear.
B. Raimbault, R. Jolivet, E. Calais, Y. Fukushima, S. Symithe   +4 more
wiley   +1 more source

From the TRICE-2 Investigations to the TRACERS Mission. [PDF]

Space Sci Rev
Trattner KJ, LaBelle J, Santolik O, Kletzing CA, Miles DM, Fuselier SA, Bonnell JW, Bounds SR, Kolmasova I, Petrinec SM, Sawyer RP, Vines SK, Moser-Gauthier C, Cairns IH, Yeoman TK.   +14 more
europepmc   +1 more source

The composition of Mars' topside ionosphere: Effects of hydrogen

, 2013
M. Matta, P. Withers, M. Mendillo
semanticscholar   +1 more source