Results 91 to 100 of about 260,255 (207)

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

On the Detection of Low‐Frequency Planetary Radio Emission With an Orbiting Interferometer

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The magnetized planets of the outer Solar System produce kilometric radio emissions at very low frequencies (<1 ${< } 1\,$MHz). They reveal the planetary magnetic dynamics and their interaction with the solar wind. Those radio emissions can also serve as a proxy for interplanetary space weather monitoring.
E. Rouillé, B. Cecconi, B. Segret, J. N. Girard, A. Loh   +4 more
wiley   +1 more source

A Direct Simulation Monte Carlo–Driven Photochemical Model of Callisto’s Ionosphere

The Planetary Science Journal
Here we present a photochemical model of Callisto’s ionosphere with inputs supplied by a direct simulation Monte Carlo model of its neutral atmosphere. We compare a model that considers interactions with photons as the sole external ionization mechanism ...
Shane R. Carberry Mogan, Luke E. Moore, Lucas Liuzzo, Andrew R. Poppe   +3 more
doaj   +1 more source

Planetary Waves in the Thermosphere-Ionosphere System.

Journal of geomagnetism and geoelectricity, 1996
In the limit of an isothermal atmosphere without dissipation, the equations governing atmospheric motions admit solutions corresponding to “free” (unforced) oscillations for discrete zonal wavenumbers and periods. Global oscillations belonging to the rotational subclass are referred to as free Rossby waves or Rossby normal modes.
openaire   +2 more sources

A Semi‐empirical Framework for Dst Prediction Based on Global MHD Simulation of Earth's Magnetosphere

Space Weather, Volume 24, Issue 6, June 2026.
Abstract This study develops a semi‐empirical framework for Dst index forecasting by integrating the PPMLR‐MHD model of Earth's magnetosphere with four established empirical models (Burton, UCB, AK2, and Wang). The framework partitions the physics: global magnetopause and tail currents are simulated by MHD, while the ring current contribution is ...
Jiawen Yue, Xiaocheng Guo, Yuxian Wang, Jianguang Guo, Weiguo Zong, Tian Mao, Chi Wang   +6 more
wiley   +1 more source

The Flare Irradiance Spectral Model‐Version 2 (FISM2)

Space Weather, 2020
The Flare Irradiance Spectral Model (FISM) is an important tool for estimating solar variability for a myriad of space weather research studies and applications, and FISM Version 2 (FISM2) recently was released.
P. C. Chamberlin, F. G. Eparvier, V. Knoer, H. Leise, A. Pankratz, M. Snow, B. Templeman, E. M. B. Thiemann, D. L. Woodraska, T. N. Woods   +9 more
doaj   +1 more source

Towards a precise modelling of transport processes in planetary ionospheres: photoelectrons, magnetospheric electrons and protons

, 2008
session C13Numerical simulations of planetary ionospheres (Earth, Mars, Venus and Titan) using Boltzmann's kinetic formalism have proved their efficiency in interpreting multi-instrumental data sets. We present now the last evolution of the Trans-* codes
Lilensten, Jean, Simon, Cyril
core  

Oscillation of the Ionosphere at Planetary‐Wave Periods

Journal of Geophysical Research: Space Physics, 2018
AbstractF‐region ionospheric oscillations at planetary‐wave (PW) periods (2–20 days) are investigated, with primary focus on those oscillations transmitted to the ionosphere by PW modulation of the vertically propagating tidal spectrum. Tidal effects are isolated by specifically designed numerical experiments performed with the National Center for ...
J. M. Forbes, A. Maute, X. Zhang, M. E. Hagan   +3 more
openaire   +3 more sources

Dynamics of the region 1 Birkeland current oval derived from the Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE)

, 2012
[1] The region 1 (R1) and region 2 current systems typically form concentric rings of field-aligned currents in the polar ionospheres; we term the inner ring the R1 oval. We apply an automated fitting scheme to field-aligned current densities provided by
L. Clausen, J. Baker, J. Ruohoniemi, S. Milan, B. Anderson   +4 more
semanticscholar   +1 more source

Validating SCUBAS Predictions of Geomagnetically Induced Voltage in Submarine Cables Using Legacy Superstorm Observations

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Modern submarine communication cables, though fiber‐optic in nature, remain vulnerable to space weather hazards due to their internal conductive cables used for powering repeaters. During geomagnetic storms, variations in the geomagnetic field induce geoelectric fields that drive geomagnetically induced voltages along these cables.
S. Chakraborty, M. D. Hartinger, X. Shi, D. H. Boteler, E. Lawrence, C. Boteler, J. B. H. Baker, M. Macalester   +7 more
wiley   +1 more source