Results 81 to 90 of about 243,128 (206)

Near‐Field Acoustic and Gravity Wave Modes in the Ionosphere Triggered by Ground Motion and Tsunami During the 2024 Mw7.4 Hualien Earthquake

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract The interaction between the atmosphere and other components of the Earth system, such as the solid Earth and the oceans, remains an open and active area of research. In particular, the dynamic response of the ionosphere to forcing from below, such as earthquakes and tsunamis, is not yet fully understood.
Oluwasegun M. Adebayo, Lucie Rolland, Esfhan A. Kherani, Tung‐Yuan Hsiao, Loren C. Chang, Alexandre A. Pimenta, Virginia A. Klausner   +6 more
wiley   +1 more source

Geomagnetic Kp index

, 1932
This data publication includes the IAGA-endorsed Kp index of geomagnetic activity as well as the derived indices ap, Ap, Cp and C9 in their definitive and nowcast version and the International Quiet and Disturbed Days. This dataset is provided by GFZ and
Bronkalla, Oliver, Elger, Kirsten, Stolle, Claudia, Matzka, Jürgen, Tornow, Katrin   +4 more
core   +1 more source

Impacts of Mid‐Latitude Ionospheric Dynamics on RF Applications During the November 2025 Superstorm Event

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract This study demonstrates the intriguing and complex interplay among auroral precipitation, enhanced TEC, density irregularities, and amplitude scintillations observed during the November 2025 superstorm. For the first time, we present observations of strong amplitude scintillation across continental United States (CONUS)—nearly from coast to ...
E. Yizengaw, W. Younas, Y. Nishimura, C. Gabrielse, T. Beach, A. J. Coster, R. Pradipta, K. M. Groves   +7 more
wiley   +1 more source

The multi scenarios applicability of GNSS differential positioning technology in the remeasurement of observatory azimuth in China [PDF]

Geoscientific Instrumentation, Methods and Data Systems
The azimuth angle of geomagnetic observatory marks is crucial for ensuring the reliability of geomagnetic observation data, and its remeasurement constitutes a core task in observatory operations. The Geomagnetic Network of China comprises 46 geomagnetic
Y. He, Y. He, X. Zhao, X. Zhao, S. Zhang, Q. Li, F. Yang, S. He, P. Guo, J. Zhou   +9 more
doaj   +1 more source

Cosmic Radiation Dose‐Rates for Civil Aviation in the Middle East: Vertical Structure, Solar Modulation, and Comparison With Models

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract High‐altitude balloon measurements were conducted over southern Israel (30°35′N, 34°45′E; 850 m a.s.l., geomagnetic rigidity cutoff 10.3 GV) to characterize the vertical profiles of atmospheric ionization and radiation up to ∼35 km. Six balloon launches between October 2014 and August 2016 recorded the variability of atmospheric ionization ...
Roy Yaniv, Yoav Yair, Colin Price
wiley   +1 more source

Effect of a huge crustal conductivity anomaly on the H-component of geomagnetic variations recorded in central South America

Earth, Planets and Space, 2017
We describe here an analysis of the H-component of the geomagnetic field recorded in several temporary stations operating simultaneously in the central–eastern region of Brazil during nighttime pulsation events in 1994 and the sudden commencement of the ...
Antonio L. Padilha, Livia R. Alves, Graziela B. D. Silva, Karen V. Espinosa   +3 more
doaj   +1 more source

The British Geological Survey's New Geomagnetic Data Web Service

Data Science Journal, 2013
Increasing demand within the geomagnetism community for high quality real-time or near-real-time observatory data means there is a requirement for data producers to have a robust and scalable data processing infrastructure capable of delivering ...
E Dawson, J Lowndes, P Reddy
doaj   +1 more source

Tour of BGS Eskdalemuir Geomagnetic Observatory (video)

A video published on the BGS YouTube channel shows BGS geophysicist Tom Shanahan leading a tour of the BGS geomagnetic observatory at Eskdalemuir.
Shanahan, Tom
core   +4 more sources

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

Geomagnetic Secular Variation at the Indian Observatories.

Journal of geomagnetism and geoelectricity, 1997
Annual mean values of geomagnetic field components D, H and Z for all days and quiet days at six observatories are analysed to investigate the secular variations and geomagnetic jerks in the Indian region. Secular trends show a region of demarkation between equatorial and low latitude stations.
Bhardwaj, S. K., Rangarajan, G. K.
openaire   +2 more sources