Results 51 to 60 of about 2,675,738 (224)
Interstellar Migration, the Population ‘Problem’ and the Climate Emergency
Critical Quarterly, EarlyView.
Anna Hartnell
wiley +1 more source
Surface‐Driven Protocell Formation in Geologically Relevant Early Earth Environment
Illustration of a prebiotic early‐Earth environment showing cell‐like protocells (blue spheres) and other complex organic molecules (pink and green spheres) distributed across terrestrial surfaces and within subsurface niches. Volcanic landscapes and mineral‐rich substrates provide diverse geochemical settings for the assembly and evolution of ...
Pamela Knoll, Silvia Holler
wiley +1 more source
Formation of Continuum Emission Structures Associated With the Aurora
Abstract Recent observations enabled by improvements in geospace remote‐sensing instrumentation have revealed the spatial structure of continuum emissions that appear to be associated with the aurora, but little is known about the formation and drivers of these structures.
J. Houghton +3 more
wiley +1 more source
Dynamical evolution of magnetic flux ropes in the solar wind [PDF]
The conservation of magnetic flux in systems of very low dissipation, as the interplanetary medium, is used to analyze magnetic clouds in significant expansion.
C. H. Mandrini +2 more
doaj
Multiple Reconnection X‐Lines at the Earth's Magnetopause in the Presence of Magnetosheath Flow
Abstract Magnetic reconnection occurs continuously along long X‐lines at the Earth's magnetopause. The maximum magnetic shear model predicts the locations of these long X‐lines for a wide range of upstream solar wind conditions. One of the more perplexing observational results is that these X‐lines appear to be stationary, even in the presence of ...
S. A. Fuselier +9 more
wiley +1 more source
Abstract Short Large‐Amplitude Magnetic Structures (SLAMS) are believed to play important roles in the physics governing the formation of quasi‐parallel shocks. These isolated non‐linear structures, frequently observed in the foreshock, have been suggested to be building blocks for the shock and have been shown to drive shock reformation. In this work,
S. Bergman, T. Karlsson, T. K. Wong Chan
wiley +1 more source
Intense Ground Magnetic Perturbations During the 2024 May and October Geomagnetic Storms
Abstract The May and October 2024 geomagnetic storms represent two of the most intense space weather events of Solar Cycle 25. While differing in global intensity, both storms produced extreme ionospheric disturbances, including equatorward auroral expansion to mid‐latitudes and rapid geomagnetic variations (dH/dt $\text{dH}/\text{dt}$).
P. De Michelis +3 more
wiley +1 more source
Space climate and space weather over the past 400 years: 1. The power input to the magnetosphere
Using information on geomagnetic activity, sunspot numbers and cosmogenic isotopes, supported by historic eclipse images and in conjunction with models, it has been possible to reconstruct annual means of solar wind speed and number density and ...
Lockwood Mike +4 more
doaj +1 more source
Toward a Dynamic Model for Topside Ionospheric Irregularities: Spherical Harmonic Decomposition
Abstract Ionospheric irregularities arise from highly dynamic and turbulent processes related to magnetosphere‐ionosphere coupling and can lead to electromagnetic signal distortion or loss of lock events in global navigation satellite system signals, representing a hazard associated with space weather events. For this reason, understanding and modeling
S. Mestici +6 more
wiley +1 more source

