Results 171 to 180 of about 741 (254)

The Evolution of a Polar Cap Patch Into a Blob in the Nightside Ionosphere: Direct Observations of Multiple Blob Formation Mechanisms Acting Simultaneously on the Same Plasma

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract A polar cap patch was observed to exit the polar cap to become a blob as it entered the auroral oval on the nightside of the Earth under moderately quiet geomagnetic conditions (Kp = 3−). Auroral particle precipitation led to an increase in the electron density of the blob.
S. J. Maguire, A. G. Wood, D. R. Themens, E. M. Henley, S. E. Milan, Y. Soobiah, K. Oksavik, W. J. Miloch, J. C. Coxon, M. G. Johnsen   +9 more
wiley   +1 more source

First Coincident Radar and Optical Observations of a Meteor Radio Afterglow

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract It has been hypothesized that Meteor Radio Afterglows (MRAs) occur due to resonant transition radiation (RTR) where suprathermal electrons emit as they pass through electron density inhomogeneities in a turbulent plasma. Meteor trails are thought to produce suprathermal electrons through anion oxidation, which can be identified through meteor ...
K. S. Obenberger, J. L. Chau, J. Vierinen, D. Vida, L. E. Cordonnier, Z. Balint, M. Clahsen, E. Dao, J. Dowell, J. M. Holmes, R. F. Kelly, D. Kastinen, N. Pfeffer, K. Robinson, G. B. Taylor, J. M. Urco   +15 more
wiley   +1 more source

Current understanding of electroautotrophy and its relevance in astrobiology-related research. [PDF]

mLife
Wang Q, Lau Vetter MCY.
europepmc   +1 more source

Impact of Fully Time‐Varying Freshwater Fluxes From Greenland and Rivers on Externally Forced and Internal Sea Level Variability

Journal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.
Abstract In forced ocean general circulation models (OGCMs), regional sea‐level interannual variability arises from internal ocean dynamics and external forcings, among which freshwater fluxes from Greenland and rivers are typically prescribed as a seasonal climatology rather than with their full variability.
S. Tajouri, W. Llovel, F. Sévellec, Q. Jamet, A. Hochet   +4 more
wiley   +1 more source

On detecting and characterizing planetary oceans in the solar system using a distance-based ensemble modelling approach: application to the Uranus system. [PDF]

Philos Trans A Math Phys Eng Sci
Cochrane CJ, Vance SD, Biersteker JB, Styczinski MJ, Weiss B.   +4 more
europepmc   +1 more source

Increasing Net Community Production in Western North Pacific Marginal Seas Due to Anthropogenic Nitrogen

Journal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.
Abstract Anthropogenic nitrogen emissions and deposition have substantially increased seawater nitrate concentrations in the western North Pacific. However, their influence on net community production (NCP)—a primary driver of organic carbon export from the euphotic zone—remains one of the least constrained components governing oceanic CO2 uptake ...
Minji Hong, Kitack Lee, Kwang‐Young Jeong, Joon‐Soo Lee, In‐Seong Han   +4 more
wiley   +1 more source

The origin of complex crater formation during high-speed impacts. [PDF]

Sci Adv
Celebi HF, Andrews AJ, Pothos I, Bellefeuille NA, Olson BA, Schwartzentruber TE, Hogan CJ.   +6 more
europepmc   +1 more source

Early Solar Wind and Dynamo Magnetic Field Topology Predictions for (16) Psyche and Other Asteroids

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Asteroid (16) Psyche is a metal‐rich body that might record an ancient coherent magnetization if some relict crust or mantle is preserved. Herein, we use magnetohydrodynamic simulations to predict (16) Psyche's field topology for several distinct pathways: (i) an early solar wind‐induced magnetization imparted after a larger body was impacted,
Atma Anand, Jonathan Carroll‐Nellenback, Eric G. Blackman, John A. Tarduno   +3 more
wiley   +1 more source

Pollution resistance of Saturn's ring particles during micrometeoroid impact. [PDF]

Nat Geosci
Hyodo R, Genda H, Madeira G.
europepmc   +1 more source

Exploring the Interior Structure of (16) Psyche Through Basin‐Scale Collisions

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Asteroid (16) Psyche, the largest member of the M/X‐type asteroids, may be the leftover core of a differentiated planetesimal. As such (16) Psyche will be explored in detail by NASA's discovery‐class Psyche mission in 2029. This will be the first mission to orbit a metal‐rich asteroid, or any asteroid in the 100–500 km size range.
Namya Baijal, Erik Asphaug, C. Adeene Denton, Martin Jutzi, Sabina Raducan, Saverio Cambioni, Linda T. Elkins‐Tanton, Amanda Alexander   +7 more
wiley   +1 more source