Results 111 to 120 of about 258,357 (262)

Breaking Kelvin: Circulation conservation and vortex breakup in MHD at low Magnetic Prandtl Number

, 2018
In this paper we examine the role of weak magnetic fields in breaking Kelvin's circulation theorem and in vortex breakup in two-dimensional magnetohydrodynamics for the physically important case of a low magnetic Prandtl number (low $Pm$) fluid.
Diamond, P. H., Dritschel, D. G., Tobias, S. M.   +2 more
core  

Impact‐Generated Mixing, Melting and Vaporization of the Early Earth's Crust

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Earth's primary accretion was followed by a protracted flux of interplanetary collisions by leftover planetesimals. The effects of the largest collisions—with bodies possibly exceeding 1,000 km diameter—would have been devastating for terrestrial near‐surface environments.
S. Marchi, A. M. Alexander, R. Citron, B. C. Johnson   +3 more
wiley   +1 more source

Dust Clumping in Outer Protoplanetary Disks: The Interplay among Four Instabilities

The Astrophysical Journal Letters
Dust concentration in protoplanetary disks (PPDs) is the first step toward planetesimal formation, a crucial yet highly uncertain stage in planet formation.
Pinghui Huang, Xue-Ning Bai
doaj   +1 more source

Novel Insights on Ocean Internal Waves: Quantitative Surface Manifestations and Upper Ocean Layer Displacements From the Surface Water Ocean Topography Mission (SWOT) Measurements

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The Surface Water and Ocean Topography (SWOT) mission provides unprecedented high‐resolution simultaneous observations of both sea surface height anomalies and sea surface roughness. Specifically, it enables more precise analysis of strong internal waves. Off the Amazon Shelf, in the Indonesian Seas, and near the Mascarene Ridge, internal wave
V. Cheshm Siyahi, V. Kudryavtsev, B. Chapron, F. Collard   +3 more
wiley   +1 more source

Zonal Flow and Self-regulating Mechanism in a Hydrodynamic Disk

The Astrophysical Journal
This study addresses key aspects of momentum transport in hydrodynamic disks, which is critical for understanding zonal flow generation and turbulence in compressible hydrodynamic disks.
Chang-Chun Chen, Hui Li, P. H. Diamond, Shengtai Li   +3 more
doaj   +1 more source

Supplementary information for Kobras et al., "Eddy saturation in a reduced two-level model of the atmosphere", published in Geophysical and Astrophysical Fluid Dynamics, 2021. DOI: 10.1080/03091929.2021.1990912

, 2021
Melanie Kobras
openalex   +1 more source

Shape Matters: Unlocking Transport Histories in Fine‐Grained Aeolian Sediments With Endmember Modeling of Size–Shape Distributions

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The transport medium, mode, energy, and distance are recorded in the grain‐size and grain‐shape distributions in a sedimentary deposit. While grain‐size analysis has long been used in sedimentology, grain‐shape analysis is increasingly recognized as a valuable tool for reconstructing sedimentary processes and palaeoenvironments.
P. P. Stark, M. A. Prins, C. J. Beets, H. Tang, R. T. van Balen, A. P. Kaakinen   +5 more
wiley   +1 more source

Distinct Cloud‐to‐Ground Lightning Properties in Frontal Versus Warm‐Sector Heavy Rainfall Events

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Do systematic differences in cloud‐to‐ground (CG) lightning properties—particularly return stroke number and current intensity—exist across different thunderstorm types? This question is foundational not only to the atmospheric electricity but also to advancing lightning risk prediction, which crucially depends on a robust understanding of how
Xiaotian Wu, Dong Zheng, Yijun Zhang, Jie Feng, Naigeng Wu, Wen Yao, Hai Yu   +6 more
wiley   +1 more source

Stable Stratification of the Helium Rain Layer Yields Vastly Different Interiors and Magnetic Fields for Jupiter and Saturn

The Planetary Science Journal
At sufficiently high pressures (∼Mbar) and low temperatures (∼10 ^3 –10 ^4 K), hydrogen and helium become partly immiscible. Interpretations of Jupiter’s and Saturn’s magnetic fields favor the existence of a statically stable layer near the Mbar pressure
S. Markham, T. Guillot
doaj   +1 more source

Silicate and Carbonate Weathering Perturbation at the Eocene‐Oligocene Transition Recorded by Mg Isotopes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract During the Eocene‐Oligocene Transition (ca. 34 Ma), the Earth underwent a dramatic decline in atmospheric CO2, global cooling, a deepening of the carbonate compensation depth (CCD), and the formation of a permanent ice sheet on Antarctica. The expansion of Antarctic glaciers eroded the underlying bedrock and increased the weathering flux to ...
Adam D. Sproson, Toshihiro Yoshimura, Shigeyuki Wakaki, Takahiro Aze, Yusuke Yokoyama, Tsuyoshi Ishikawa, Naohiko Ohkouchi   +6 more
wiley   +1 more source