Results 101 to 110 of about 194,727 (195)

Sensitivity of the Martian Magnetotail to Model Configuration Choices in Multispecies MHD Simulations

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Numerical modeling has been a key component in the study of the Mars space environment, providing a comprehensive global representation that is not always easy to obtain in spacecraft measurements. However, there are inconsistencies in data‐model and model‐model comparisons, regardless of whether the simulation conditions are identical or ...
Nii‐Boi A. Quartey, Michael W. Liemohn, Wenyi Sun, Yingjuan Ma   +3 more
wiley   +1 more source

Heating of the Atmospheres of Short-orbit Exoplanets by Their Rapid Orbital Motion through an Extreme Space Environment

The Astrophysical Journal
Exoplanets with short orbit periods reside very close to their host stars. They transition very rapidly between different sectors of the circumstellar space environment along their orbit, leading to large variations of the magnetic field in the vicinity ...
Ofer Cohen, Alex Glocer, Cecilia Garraffo, Julián D. Alvarado-Gómez, Jeremy J. Drake, Kristina Monsch, Farah Fauth Puigdomenech   +6 more
doaj   +1 more source

The electric wind of Venus: A global and persistent “polar wind”‐like ambipolar electric field sufficient for the direct escape of heavy ionospheric ions

Geophysical Research Letters, 2016
Understanding what processes govern atmospheric escape and the loss of planetary water is of paramount importance for understanding how life in the universe can exist.
Glyn A. Collinson, Rudy A. Frahm, Alex Glocer, Andrew J. Coates, Joseph M. Grebowsky, Stas Barabash, Shawn D. Domagal‐Goldman, Andrei Fedorov, Yoshifumi Futaana, Lin K. Gilbert, George Khazanov, Tom A. Nordheim, David Mitchell, Thomas E. Moore, William K. Peterson, John D. Winningham, Tielong L. Zhang   +16 more
doaj   +1 more source

Variability of Equatorial Ionospheric Bubbles over Planetary Scale: Assessment of Terrestrial Drivers [PDF]

, 2022
Lalit Mohan Joshi, Lung‐Chih Tsai, Shin-Yi Su, Abhijit Dey   +3 more
openalex   +1 more source

Quasi 6‐Day Wave Variability in the Thermosphere and Ionosphere: Observations and Modeling

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Satellite observations of the upper mesosphere and lower thermosphere from TIMED‐SABER and ICON‐MIGHTI reveal a clear Quasi 6‐Day Wave (Q6DW) event in the winds and temperatures in this region. This Q6DW event persists across multiple data sets throughout the middle‐to‐upper thermosphere and the F‐region ionosphere, including GOLD disk ...
Oluwafisayo P. Owolabi, Scott L. England, Yen‐Jung Wu   +2 more
wiley   +1 more source

Bridging Model–Data Discrepancies in Mars’ Dayside Ionosphere: Exploring Varying Reaction Rate Coefficients

The Astrophysical Journal
Measurements of concentrations of neutral and ion species in the upper atmosphere of Mars by the Neutral Gas and Ion Mass Spectrometer (NGIMS) on board the Mars Atmosphere and Volatile EvolutioN mission have served as model input and/or for comparison ...
M. Persson, E. Vigren
doaj   +1 more source

Quantification of Uncertainty in Surface Energy Fluxes Toward Assessment of Energy Imbalance Using Global Products

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Accurate assessment of surface energy balance (SEB) closure is critical for understanding global warming and regional climate variability, yet substantial disagreement persists among reanalysis and land data assimilation products across regional scale.
Naorem Rickey, Riya Dutta
wiley   +1 more source

Thermal Variability in the Martian Upper Atmosphere within the Crustal Magnetic Field Region Induced by Gravity Wave Dissipation Due to Ion-drag Effect

The Astronomical Journal
Mars Atmosphere and Volatile Evolution detected a significant temperature increase of approximately 20–40 K in the upper atmosphere within the strong crustal magnetic field (CF) region during two deep dip campaigns.
Xing Wang, Xiaojun Xu, Jun Cui, Siqi Yi, Hao Gu, Zilu Zhou, Hengyan Man, Lei Luo, Peishan He, Pu Yang   +9 more
doaj   +1 more source

Summer Nighttime Anomalies of Ionospheric Electron Content at Midlatitudes: Comparing Years of Low and High Solar Activities Using Observations and Tidal/Planetary Wave Features [PDF]

, 2022
Yu Feng Yin, Guillermo González‐Casado, Adrià Rovira García, José Miguel Juan Zornoza, Jaume Sanz Subirana, Yixie Shao   +5 more
openalex   +1 more source

U‐Net Based Machine Learning for Identification of Auroras in Space‐Based Images

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract We use a Semantic Segmentation based U‐Net model to predict the appearance of various classifications of aurora present in near‐infrared images from the Fast Auroral Imager (FAI) onboard the CASSIOPE satellite. We manually labeled pixels from a set of 4091 FAI near‐infrared images into 7 different classes: no aurora, contaminated, diffuse ...
Amit Kain, Matthew G. Finley, Andrew D. Howarth, Andrew W. Yau, David M. Miles   +4 more
wiley   +1 more source