Results 71 to 80 of about 13,117,941 (259)

A new high-resolution geomagnetic field model for southern Africa

South African Journal of Science
Earth’s magnetic field is a dynamic, changing phenomenon. The geomagnetic field consists of contributions from several sources, of which the main field originating in Earth’s core makes up the bulk.
Amore E. Nel, Achim Morschhauser, Foteini Vervelidou, Jürgen Matzka   +3 more
doaj   +1 more source

Cretaceous–Palaeogene Plate Boundary Evolution at the Pacific Margins of Zealandia and West Antarctica

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.
Improved satellite‐derived gravity data support updated interpretations and models of ancient plate boundaries and plate motions affecting Zealandia and West Antarctica. The models combine to confidently resolve hundreds of kilometres of Late Cretaceous–Eocene motion between the Pacific and Lord Howe plates, confirming that plate circuit constructions ...
Graeme Eagles
wiley   +1 more source

Report on the magnetic survey in Slovakia for the 2014.5 epoch

Contributions to Geophysics and Geodesy, 2016
The models of the distribution of the elements of the geomagnetic field must be updated regularly. For this purpose geomagnetic measurements have to be carried out repeatedly at geomagnetic observatories as well as at temporary observation points.
Fridrich VALACH, Magdaléna VÁCZYOVÁ, Tomáš ŠOLTIS, Melinda VAJKAI   +3 more
doaj   +1 more source

Stochastic forecasting of the geomagnetic field from the COV-OBS.x1 geomagnetic field model, and candidate models for IGRF-12 [PDF]

Earth, Planets and Space, 2015
We present the geomagnetic field model COV-OBS.x1, covering 1840 to 2020, from which have been derived candidate models for the IGRF-12. Towards the most recent epochs, it is primarily constrained by first differences of observatory annual means and measurements from the Oersted, Champ, and Swarm satellite missions.
Gillet, Nicolas, Barrois, Olivier, Finlay, Chris; id_orcid 0000-0002-4592-2290   +2 more
openaire   +2 more sources

Quantifying Nighttime Gravity Wave‐Driven Mesosphere‐Ionosphere Coupling Over CONUS Using NASA AWE Radiance and GNSS TEC Observations

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary, Xian Lu   +1 more
wiley   +1 more source

Monitoring the plasmapause using geomagnetic field line resonances [PDF]

, 2004
This paper discusses the use of ground magnetometer data to derive plasma mass density profiles of the dayside plasmapause region with spatial and temporal resolution in the range 0.15-0.4 R-E and 20-60 min.
Menk, F.W., Mann, I.R., Waters, C.L., Clilverd, M.A., Smith, A.J., Milling, D.K.   +5 more
core   +2 more sources

Position of the Lhasa Terrane and Two‐Stage Crustal Shortening During the India–Asia Collision

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The paleolatitudinal change of the Lhasa Terrane is critical for estimating the timing of the India–Asia collision and associated syn‐to post‐collisional crustal shortening, but its paleoposition is highly debated. Here we present integrated geochronologic and paleomagnetic results from the Lower Eocene Nianbo Formation in the Linzhou Basin ...
Zhenhua Jia, Pan Zhao, Yifei Hou, Yue Liu, Siyuan Li, Jiahui Ma, Chenglong Deng   +6 more
wiley   +1 more source

峰山地磁気観測所におけるMIセンサー地磁気観測データ

, 2022
This dataset contains the following two kinds of data. (1) YYYYMMDD.sec files Measurement of geomagnetic field variations obtained with MI sensor at Mineyama observatory. Time is in UT.
能勢, 正仁, NOSÉ, Masahito
core   +1 more source

Local Generation of Plasmaspheric Plume Hiss

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The statistical analysis of hiss waves observed in the plasmaspheric plume (Wu et al., 2026, https://doi.org/10.1029/2026gl121667) is significant for identifying nonlinear wave growth processes in the equatorial region. Because nonlinear growth rates greatly exceed linear growth rates, they enable the local generation of new wave packets in ...
Yoshiharu Omura
wiley   +1 more source

Influence of different data selection criteria on internal geomagnetic field modeling

Earth and Planetary Physics
Earth’s internal core and crustal magnetic fields, as measured by geomagnetic satellites like MSS-1 (Macau Science Satellite-1) and Swarm, are vital for understanding core dynamics and tectonic evolution.
HongBo Yao, JuYuan Xu, Yi Jiang, Qing Yan, Liang Yin, PengFei Liu   +5 more
doaj   +1 more source