Results 31 to 40 of about 200,604 (171)

Mapping Global GNSS Vertical Velocities to Solid Earth Figure Change

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The Earth's figure evolves in response to glacial isostatic adjustment (GIA), surface‐mass redistribution, and rotational and mantle‐driven processes. While temporal changes in the geoid's flattening are monitored through low‐degree gravity field harmonics, the geometric response of the solid Earth can be assessed independently from GNSS ...
C. Kotsakis
wiley   +1 more source

Size, Shape, Density, and Atmospheric Limit of (50000) Quaoar Revealed from 14 years of Stellar Occultation

open access: yesThe Astrophysical Journal
We present results from 28 stellar occultations by the large trans-Neptunian object (50000) Quaoar registered between 2018 and 2025. By performing a joint analysis of this occultation dataset, along with nine other published events, we were able to fit ...
Giuliano Margoti   +178 more
doaj   +1 more source

Magnetic Dual‐Layer Equivalent Sources on the Sphere

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The equivalent source method is widely used for processing and interpolating magnetic data, particularly in airborne surveys. However, implementations based on Cartesian coordinates present limitations at regional and global scales, where Earth curvature introduces geometric inconsistencies that affect data integration and modeling accuracy ...
Arthur Siqueira‐Macedo   +2 more
wiley   +1 more source

Texas Needs to Prepare for Possible 10-year ‘Megadroughts’ [PDF]

open access: yes, 2020
You are viewing an article about Planet Texas 2050 from July 2020.Office of the VP for ...
Group of Researchers, Planet Texas 2050
core   +1 more source

Beyond Point Masses. III. Detecting Haumea’s Nonspherical Gravitational Field

open access: yesThe Planetary Science Journal
The dwarf planet Haumea is one of the most compelling trans-Neptunian objects to study, hosting two small, dynamically interacting satellites, a family of nearby spectrally unique objects, and a ring system. Haumea itself is extremely oblate due to its 3.
Benjamin C. N. Proudfoot   +5 more
doaj   +1 more source

Ductile and Brittle Rio Grande Rift Deformation in Oligocene Granite Records a Two‐Stage Rift History in Southern Colorado

open access: yesTectonics, Volume 45, Issue 8, August 2026.
Abstract The timing and nature of early deformation in the Rio Grande Rift remains poorly constrained. We present evidence for the earliest structural signature of rift extension in the Sangre de Cristo Range, southern Colorado, based on new geologic mapping, structural analysis, rock magnetic data, and thermochronology. These analyses focus on the ∼30.
Samantha Malavarca   +7 more
wiley   +1 more source

AI Challenge for Satellite Tracking and Orbit Resilience Modeling (STORM‐AI): Data Set, Design, and Results

open access: yesSpace Weather, Volume 24, Issue 8, August 2026.
Abstract Precise thermospheric density forecasting is critical for mitigating satellite drag in Low Earth Orbit (LEO), but traditional empirical models such as MSIS and JB2008 can fail during geomagnetic storms. To evaluate whether AI can better capture this transient behavior, the 2025 MIT ARCLab Prize for AI Innovation in Space asked participants to ...
Sergio Sanchez‐Hurtado   +18 more
wiley   +1 more source

Cretaceous Spatiotemporal Variations in Tectonic Shortening Directions in the Longmen Shan Tectonic Belt and Geodynamic Implications: Constraints From AMS Fabrics and Crustal Rotation in the Western Sichuan Basin

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract As a major tectonic boundary along the eastern margin of the Tibetan Plateau, the Longmen Shan tectonic belt (LMSTB) underwent pronounced crustal shortening and thickening during the Cretaceous. However, the spatiotemporal evolution of Cretaceous shortening and the boundary's response to far‐field tectonic forcing remain incompletely resolved.
Lifu Hou   +8 more
wiley   +1 more source

Measuring the Oblateness and Rotation of Transiting Extrasolar Giant Planets [PDF]

open access: yesThe Astrophysical Journal, 2003
13 pages -- accepted to the Astrophysical ...
Barnes, Jason W., Fortney, Jonathan J.
openaire   +2 more sources

Insights on Lightning‐Induced Remanent Magnetization From High‐Current Impulse Experiments

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Lightning strikes generate intense transient magnetic fields capable of inducing strong and complex remanent magnetizations in rocks, potentially overprinting their original paleomagnetic record. To investigate the mechanisms and outcomes of lightning‐induced remanent magnetization, we conducted controlled high‐current impulse experiments on ...
M. De Andrade Nunes   +5 more
wiley   +1 more source

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