Results 51 to 60 of about 530 (188)
A Physics‐Based Frequency‐Temperature Seismic Anelastic Attenuation Model for Planetary Ice Shells
Earth and Space Science, Volume 13, Issue 8, August 2026.Abstract Intrinsic attenuation in planetary ices remains poorly constrained at seismic frequencies and low temperatures, limiting quantitative predictions of wave propagation in icy moons. Existing models typically rely on constant‐Q, or power‐law formulations that lack microphysical grounding and fail to capture the strong temperature sensitivity of ...
L. Delaroque +3 more
wiley +1 more source
What SAR Labels Hide About a Changing Arctic
Earth's Future, Volume 14, Issue 8, August 2026.Abstract Synthetic aperture radar (SAR) has been the backbone of Arctic sea ice monitoring since the 1990s, yet nearly every operational product that assigns an ice class or geophysical state (melt onset dates, freeze‐up timing, ice‐type classifications) is derived by compressing continuous radar backscatter into discrete categorical labels.
M. Mahmud
wiley +1 more source
Coincident ENA and Narrowband Radio Emissions as Diagnostics of Inward Plasma Transport at Saturn
Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.Abstract Saturn's kilometric radiation (SKR) and Energetic Neutral Atom (ENA) emissions are important diagnostics of the planet's magnetospheric dynamics, intensifying during global plasma injections and displaying characteristic planetary periodicity. Related to the SKR emissions are myriametric narrowband radio emissions that typically appear in the ...
J. Kinrade +6 more
wiley +1 more source
L’ignition des feux de forêt par l’action de la foudre au Portugal de 1996 à 2008
Territorium: Revista Portuguesa de riscos, prevenção e segurança, 2010 Une étude des incendies de forêt causés par la foudre est présentée pour le Portugal, de 1996 à 2008. A l’aide des données de tous les feux de foudre enregistrés sur cette période, une analyse de la répartition spatiale et temporelle, de ces phénomènes ...
Lilian Pugnet +2 more
doaj +1 more source
Statistical Survey of Cosmic Noise Absorption in Conjunction With Plasma Wave Measurements
Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.Abstract Using a decade of observations from the Canadian Geospace Observatory Riometer Network (GO‐RIO), we selected an east‐west subset of stations near L∼7 $L\sim 7$ to classify cosmic noise absorption (CNA) (a proxy for enhanced D‐region ionization) into two morphologies, simultaneous and drifting, based on the relative timing of signals across the
R. Ghaffari +3 more
wiley +1 more source
Ray Tracing Method in a General Non‐Dipole Magnetic Field
Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.Abstract We present a new general mathematical formulation of the Eikonal equations for ray tracing, which can use any internal magnetic field model. The analytical and tractable expressions are conveniently based on a vector formalism, which is independent of any coordinate system.
P.‐L. Blelly +4 more
wiley +1 more source
Surface Thermal Tides and Radiative Adjustment in Venus's Deep Atmosphere
Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.Abstract Thermal tides on Venus have been extensively studied near the cloud tops, where their three‐dimensional structure and contribution to the atmospheric momentum budget have been characterized from temperature and wind fields. However, their downward propagation and influence within the deep atmosphere remain uncertain, and their behavior in the ...
Rachel Navon +4 more
wiley +1 more source
Méthodes et outils d'analyse spatiale des habitats des poissons en contexte fluvial anthropisé
Sciences, Eaux & Territoires, 2007 Pour qu'elles soient efficaces, les mesures de gestion et de restauration des habitats piscicoles devraient considérer la structure spatiale et la connectivité des habitats vitaux nécessaires au cycle de vie des espèces menacées, tout particulièrement ...
C. LE PICHON +6 more
doaj
La promenade dans les jardins de Versailles : analyse d’une expérience spatiale
Projets de Paysage, 2011 In order to appreciate a garden, the visitor must explore it. Thus, the garden must be a constant invitation, a succession of proposals to the visitor.
Catherine Szanto
doaj +1 more source
Spatial Reasoning in Comparative Analyses of Physics Diagrams [PDF]
, 2014 Spatial reasoning plays a critical role in STEM problem solving. Physics assessments, for example, are rich in diagrams and pictures, which help people understand concrete physical scenarios and abstract aspects of physical reasoning. In this paper we describe a system that analyzes sketched diagrams to solve qualitative physics problems from a popular
Maria D. Chang +2 more
openaire +1 more source