Results 111 to 120 of about 18,055 (209)

Smartphone Carrier Phase TEC: A Study Across Ionospheric Spatio‐Temporal Scales

Space Weather, Volume 24, Issue 5, May 2026.
Abstract This study explores the potential of dual‐frequency smartphones as accessible tools for citizen science in ionospheric research. While prior work by Smith et al. (2024, https://doi.org/10.1038/s41586‐024‐08072‐x) demonstrated global ionospheric monitoring using aggregated pseudorange Total Electron Content (TEC) data from millions of Android ...
Nina Servan‐Schreiber, Vincent Ledvina, Joshua Semeter, Jeremy Kuzub, Michael Hirsch, Meghan LeMay, Kshitij Duraphe, Jen‐Hsin Chiao, Yafei Chen, Joaquín Díaz Peña   +9 more
wiley   +1 more source

Astronomical Determination of Longitudes and Azimuths [PDF]

Nature, 1937
openaire   +1 more source

DeepOT: A Deep Learning Framework for Pixel‐Level Ground Surface Displacement Estimation From SAR Amplitude Imagery

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Monitoring ground surface displacement is critical for understanding geophysical processes and mitigating natural hazards, yet conventional Synthetic Aperture Radar (SAR) techniques are often limited by decorrelation, complex terrain, and heterogeneous motion.
Jinwoo Kim, Hying‐Sup Jung, Zhong Lu
wiley   +1 more source

Detection and Modeling of Co‐Seismic Ionospheric Disturbances Induced by the 2024 Mw 6.6 Deep‐Focus Earthquake in Brazil

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract On 20 January 2024, a deep‐focus earthquake (Mw 6.6, depth 607 km) struck near Tarauacá, Brazil, within the subducted South America Nazca Plate. Although it produced no surface damage, the event generated clear co‐seismic ionospheric disturbances (CSIDs) detectable in GNSS‐based Total Electron Content (TEC) data from the Brazilian RBMC network.
Oluwasegun M. Adebayo, Esfhan A. Kherani, Alexandre A. Pimenta, Saul A. Sanchez   +3 more
wiley   +1 more source

Kelvin‐Helmholtz Stability Analysis as a Function of Dipole Tilt and Solar Wind Property

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Kelvin‐Helmholtz instabilities (KHIs) play a critical role in facilitating mass and momentum transport across the magnetopause boundary. Recent studies have demonstrated that KHI occurrence exhibits both seasonal and diurnal variability, with enhanced activity when Earth's magnetic dipole is more closely aligned with the northward direction in
Alexander Navarro, Xuanye Ma, Jay Johnson, Simon Wing, Shiva Kavosi, Yu‐Lun Liou   +5 more
wiley   +1 more source

Comparison of ICON/MIGHTI and TIMED/SABER Neutral Temperature Measurements at Conjunctions in the Lower Thermosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract This study presents a cross‐comparison of mesosphere and lower thermosphere (MLT) neutral temperatures between 88 and 110 km measured by ICON/Michelson Interferometer for Global High‐resolution Thermospheric Imaging (MIGHTI) and Thermosphere Ionosphere Mesosphere Energetics and Dynamics/Sounding of the Atmosphere using Broadband Emission ...
Manbharat Dhadly, Michael Stevens, John Emmert, Martin Mlynczak, McArthur Jones Jr.   +4 more
wiley   +1 more source

Modeling the Detectability of Energetic Heliospheric Ions at Pluto During the New Horizons Flyby

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We investigate the detectability of heliospheric helium ions at energies up to 100 keV by the New Horizons (NH) spacecraft during its flyby through Pluto's induced magnetosphere. The Pluto Energetic Particle Spectrometer Science Investigation energetic ion detector observed a reduction in their flux by an order of magnitude as the spacecraft ...
Randall T. Ruch, Sven Simon, Peter Kollmann, C. Michael Haynes   +3 more
wiley   +1 more source

Modeling the Lunar Thermal Emission Phase Function With the Diviner Lunar Radiometer

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract The lunar thermal emission phase function (EPF) describes the anisotropic variation in observed infrared emission and brightness temperature with illumination and viewing geometry. The EPF is caused by small‐scale surface roughness below the resolution of current orbital data sets.
E. Jhoti, T. M. Powell, K. Bennett, C. Gallinger, D. A. Paige   +4 more
wiley   +1 more source

A Novel Technique for Extracting the Tidal Magnetic Field: Methodology and Application to a Pre‐Processed Dataset of CSES and Swarm

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The oceanic tidal magnetic field, mainly driven by the circular orbital motion of the Moon, is an essential part of the time‐varying geomagnetic field. The previously adopted time‐harmonic (TH) base worked well in fitting the primary M2 ${M}_{2}$ tidal field, but extracting the other weaker modes like the N2 ${N}_{2}$ was difficult with only a
Haoren Ma, Yanyan Yang, Zhaojin Rong, Dongquan Wang, Jiawei Gao, Zeren Zhima, Jie Wang, Bin Zhou, Werner Magnes, Fei He, Y. Wei   +10 more
wiley   +1 more source

Observations of High‐Resolution Two‐Dimensional Ionospheric Flow Dynamics Associated With Poleward Boundary Intensifications

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Poleward boundary intensifications (PBIs) are one of the most common auroral disturbances and have been shown to play a key role in substorm dynamics. PBIs are commonly interpreted as the ionospheric signature of magnetotail reconnection, providing insight into X‐line evolution.
Katherine Davidson, Yukitoshi Nishimura, Larry Lyons, Eric Donovan, Vassilis Angelopoulos, Nozomu Nishitani   +5 more
wiley   +1 more source