Results 141 to 150 of about 21,118 (299)
Space Weather, Volume 24, Issue 5, May 2026.Abstract Total Electron Content (TEC) is influenced by local and global scale factors: localized effects causing fine‐grained differences in small areas, and global‐scale effects driving synchronized variations across all over the world. This underscores the necessity of modeling both global and local features for high‐performance TEC prediction.
Xingyue Yao +4 more
wiley +1 more source
한국해양공학회지Accurate geomagnetic field mapping plays a critical role in the navigation and localization of autonomous underwater vehicles (AUVs), especially in environments where traditional satellite navigation is unavailable. This paper introduces a spatiotemporal
Dongwook Lee, Hyunkeun Cho, Jinwhan Kim
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Modeling regionally the geomagnetic field
, 2003 The geomagnetic field above the Earth's surface in current free region may be expressed as the gradient of a scalar potential solving Laplace equation. For regions with a fairly dense coverage of data at different altitudes, a regional model ought to offer a better spatial resolution of the regional field over the volume under study than a global field
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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 +9 more
wiley +1 more source
Short-term prediction of geomagnetic secular variation with an echo state network
Earth, Planets and SpaceA technique for predicting the secular variation (SV) of the geomagnetic field based on the echo state network (ESN) model is proposed. SV is controlled by the geodynamo process in the Earth’s outer core, and modeling its nonlinear behaviors can be ...
Shin’ya Nakano, Sho Sato, Hiroaki Toh
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Mathematical Model of the Geomagnetic Field
, 2006 First comes a description of a mathematical model of the geomagnetic field. Then some discussion of the classical non-uniqueness results of Backus. Further we look at more recent results concerning reconstruction of the geomagnetic field from intensity and the normal component of the field. New stability estimate for this reconstruction is obtained.
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Space Weather, Volume 24, Issue 5, May 2026.Abstract Geomagnetically induced currents (GICs) are a significant space weather hazard. Their accurate assessment requires estimating the geoelectric field, which depends on the Earth's subsurface electrical conductivity. While long‐period magnetotelluric (MT) surveys are ideal, archives of legacy broadband MT data, originally acquired for geological ...
P. De Michelis +4 more
wiley +1 more source
Mapping Geoelectric Field Hazards in Ireland
Space WeatherGeoelectric fields are generated at the Earth's surface and can lead to the induction of hazardous geomagnetically induced currents (GIC) in infrastructure like power grids, railways and pipelines during geomagnetic storms.
John Malone‐Leigh +4 more
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Preface to the Special Issue of Initial Scientific Results of MSS-1
Earth and Planetary PhysicsThe scientific research of geomagnetism has been largely driven by new geomagnetic data that are available to scientists. Macau Science Satellite-1 (MSS-1) was successfully launched on 21st May 2023 into a near-circular orbit of altitude of about 450 km ...
Keke Zhang, PengFei Liu, YongXin Pan
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