Results 81 to 90 of about 2,803 (238)

Continuous underground observation of the geomagnetic field in Xuzhou City, North China, and its time-varying characteristics

Frontiers in Earth Science
Underground space in Xuzhou City, North China, has become a favorable site for continuous geomagnetic observation to reveal geomagnetic-field variations and to monitor seismic activity due to its distinct advantage of an “ultra-quiet” and “ultra-clean ...
Mei Han, Mei Han, Lianghui Guo, Lianghui Guo, Lianghui Guo, Yun Wang, Yun Wang, Xiang Wang, Xiang Wang   +8 more
doaj   +1 more source

Teoloyucan geomagnetic observatory operation over a quality management system ISO 9001:2015 [PDF]

Geoscientific Instrumentation, Methods and Data Systems
Geomagnetic observatories are essential for the study of the Earth's magnetic phenomena; they allow the precise and continuous measurement of the geomagnetic field.
A. Caccavari-Garza, G. Cifuentes-Nava, A. Carrillo-Vargas, A. E. Gonzalez-Cabrera, C. López-Urías, J. E. Hernandez-Quintero   +5 more
doaj   +1 more source

Observing the Earth's Plasmasphere and Ionosphere From the Lunar Surface

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We present the analysis of the first lunar‐based observational characterization of the Earth's plasmasphere and ionosphere using Global Navigation Satellite Systems signals tracked from the lunar surface by the Lunar GNSS Receiver Experiment (LuGRE). The Earth‐Moon geometry enables limb sounding of the plasmasphere at altitudes exceeding 3,000 
C. Cesaroni, L. Spogli, M. Guerra, R. Ghidoni, V. Ventriglia, A. Minetto, A. Nardin, L. Alfonsi, F. Dovis   +8 more
wiley   +1 more source

Geomagnetic cutoff rigidity in neutron monitor locations

Solar-Terrestrial Physics
Neutron monitors (NMs), located at different points on the planet, allow us to study the time, energy, and angular characteristics of galactic and solar particle fluxes. Since NMs are located inside Earth's magnetosphere, their response depends on their location on the planet's surface, which can be characterized by the geomagnetic cutoff rigidity. Its
Kruchinin Pavel, Siruk Stepan, Mayorov Andrey, Malakhov Vitaly, Aleksandrin Sergey   +4 more
openaire   +2 more sources

Global Observational Comparison of Large‐Scale Traveling Atmospheric and Ionospheric Disturbances During the May 2024 Geomagnetic Storm

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract During the geomagnetic storm on 10 May 2024, neutral density measurements from 14 Tianmu, Swarm, and GRACE‐FO satellites at ∼510 km altitude, combined with total electron content (TEC) observations, enabled the first global observational comparison of large‐scale traveling atmospheric and ionospheric disturbances (LSTADs/TIDs) via snapshots ...
Xiaolong Wei, Guoying Jiang, Yajun Zhu, Yongping Li, Jiangzhao Ai, Tingwei Han, Huijun Le, Aibin Zhang, Jiyao Xu   +8 more
wiley   +1 more source

Contemporaneous Appearances of Auroral Spiral and Transpolar Arc: Polar UVI Observations and Global MHD Simulations

Earth and Space Science, Volume 13, Issue 6, June 2026.
Abstract A local vortex‐structured aurora and a large‐scale transpolar arc (TPA) were contemporaneously observed by the Polar ultraviolet imager (UVI) during the late recovery phase of a substorm, and the interplanetary magnetic field (IMF) BY and BZ were negative and negative‐to‐positive. The TPA grew along the dawnside auroral oval from the nightside
Motoharu Nowada, Yukinaga Miyashita, Aoi Nakamizo, Noora Partamies, Quan‐Qi Shi   +4 more
wiley   +1 more source

Geomagnetic Virtual Observatories

, 2022
Description of GVO data product: Geomagnetic Virtual Observatories (GVO) data are derived from satellite magnetic measurements. The GVO data products consists of magnetic field time series regularly distributed in space and time.
Chris Finlay (6221852), Nils Olsen (6215804), Magnus Danel Hammer (6219323)   +2 more
core   +1 more source

The Importance of Sample‐to‐Sensor Distance in Quantitative Micro(Paleo‐)Magnetic Analysis

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Information on the past of Earth's magnetic field can be retrieved from magnetic grains in rock samples. Micromagnetic Tomography (MMT) is a recently developed method that uses magnetic surface scans from a Quantum Diamond Microscope (QDM) combined with the position of magnetic grains in rock samples to calculate the magnetic moments of those ...
Rosa A. de Boer, Frenk Out, Bertwin M. de Groot, Martha E. Kosters, Lennart V. de Groot   +4 more
wiley   +1 more source

Strategies in the Quality Assurance of Geomagnetic Observation Data in China

Data Science Journal
Geomagnetic observation is an important approach to explore the variations of the Earth’s magnetic field. However, factors such as observation environment, observation facilities and observation equipment may affect the quality of observation data.
Suqin Zhang, Changhua Fu, Xudong Zhao, Xiuxia Zhang, Yufei He, Qi Li, Jun Chen, Jianjun Wang, Qian Zhao   +8 more
doaj   +1 more source

Ascension and Port Stanley geomagnetic observatories and monitoring the South Atlantic Anomaly

Annals of Geophysics, 2009
Our 15-year experience of operating two remote observatories, Ascension and Port Stanley, in the south Atlantic is described. These observatories help monitor the South Atlantic Anomaly (SAA), a region of weak magnetic field which causes considerable problems for spacecraft operators. One-minute and one-second values from these observatories, and other
Macmillan, Susan, Turbitt, Christopher, Thomson, Alan   +2 more
openaire   +4 more sources