Results 51 to 60 of about 1,592 (224)
Meteoritics &Planetary Science, EarlyView.Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes +5 more
wiley +1 more source
, 2007 Some of the most interesting features of the geomagnetic field and its time variations are displayed in polar areas. Observatory monthly means usually provide an excellent opportunity to study the temporal changes of the magnetic field at a given ...
De Michelis, P. +3 more
core +1 more source
Models and predictions of Earth’s magnetic field based on geomagnetic observatory data
Earth, Planets and SpaceObservations of the geomagnetic field taken at Earth’s surface are processed to construct a set of continuous models of the geomagnetic field and its secular variation from 1956 to 2033.
I. Wardinski, F. Terra Nova, H. Amit
doaj +1 more source
An Ensemble Algorithm Based Component for Geomagnetic Data Assimilation
Terrestrial, Atmospheric and Oceanic Sciences, 2015 Geomagnetic data assimilation is one of the most recent developments in geomagnetic studies. It combines geodynamo model outputs and surface geomagnetic observations to provide more accurate estimates of the core dynamic state and provide accurate ...
Zhibin Sun and Weijia Kuang
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Geomagnetic Secular Variation Anomalies in the GDR
Journal of geomagnetism and geoelectricity, 1978 For about 25 years, measurements of the magnetic components have been carried out at repeat stations in the territory of the GDR. All measurements at common stations of the magnetic surveys for the epochs 1901, 1935, and 1957 were compared. The results of the investigation indicate secular variation anomalies with amplitudes of about 3–4 nT/year. These
openaire +2 more sources
Secular variations of the geomagnetic field at the African plate
Geofizicheskiy Zhurnal, 2017 Geomagnetic secular variations at the African plate consist of shortperiod and longperiod components. Shortperiod SV depends on solar activity. To separate longperiod SV for the Athens magnetic observatories with confidence is impossible so, as rows of mean year values at most observatories are short. We used the data of fifteen observatories, but only
Sumaruk, Yu. P., Sumaruk, T. P.
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Geoscience Data Journal, Volume 13, Issue 3, July 2026.ABSTRACT The Mesosphere and Lower Thermosphere establish an essential connection between Earth's lower atmosphere and upper atmosphere because wind patterns essential for atmospheric movement also influence energy distribution and chemical movements during geomagnetic storms that disrupt satellite operations and space weather prediction systems.
Yunhao Si
wiley +1 more source
Geomagnetic secular variation changes in Southern Africa during the SWARM period 2013 - 2018
, 2020 Geomagnetic field observations from 4 magnetic observatories located in Southern Africa located at Hermanus (HER), Hartebeesthoek (HBK), Keetmanshoop (KMH) and Tsumeb (TSU) have been analysed with the main purpose to identify abrupt secular variation ...
Kotzé, Pieter B.
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Contributions to Geophysics and Geodesy, 2018 We report phenomenological inevitable correlation between the Sun’s magnetic field oscillation through the Earth and the Jupiter, with sinusoidal geomagnetic jerks observed at the Earth, additionally aligned with the gravity and length of day sinusoidal ...
Mohsen LUTEPHY
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Earth and Planetary Physics, 2023 The secular variation in the global geomagnetic field was analyzed in terms of the annual differences in monthly means by using the hourly mean data from 18 foreign (outside China) observatories of the World Data Center (WDC) for Geomagnetism from ...
YiJun Li +5 more
doaj +1 more source