Results 31 to 40 of about 243,128 (206)
Twenty years of geomagnetic field observations at Mario Zucchelli Station (Antarctica)
Annals of Geophysics, 2009 During the 1986-87 austral summer a geomagnetic observatory was installed at Terra Nova Bay. During the first<br />years both geomagnetic field time variation monitoring and absolute measurements were carried out only during<br />summer ...
Lucia Santarelli +3 more
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Annals of Geophysics, 1999 A pennanent geomagnetic observatory is always the ideal reference station for monitoring geomagnetic activity during airborne, marine or ground magnetic surveying, especially in Antarctica, where logistic difficulties are an important factor even for the
A. Garcia +4 more
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Določitev lokalnega geomagnetnega indeksa K ( = Determination of local geomagnetic K-index) [PDF]
Geodetski Vestnik, 2015 In this article, we present the origin of geomagnetic K-index. The International Association for Geomagnetism and Aeronomy (IAGA) recommends it for daily descriptions of geomagnetic field activity.
Rudi Čop +2 more
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Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract Equatorial plasma bubbles (EPBs) are ionospheric irregularities generated by Rayleigh–Taylor instability (RTI) that disrupt satellite communications. We quantify secular change of RTI growth rates and isolate underlying drivers using WACCM‐X simulations.
Liying Qian +4 more
wiley +1 more source
U.S. geomagnetic observatories
Eos, Transactions American Geophysical Union, 1973 We are writing to express our concern about the future plans for the United States geomagnetic observatories. It is our understanding that negotiations are presently under way between NOAA (in the Department of Commerce) and the U.S. Geological Survey (in the Department of the Interior) to transfer the jurisdiction of the observatories from NOAA to ...
openaire +1 more source
Geomagnetic Measurements in Macedonia
, 2021 Mining and Geology Stip led by Dr. Jean Rasson (from the Royal Meteorological Institute - Geomagnetic Observatory in Dourbes, Belgium) developed the basic geomagnetic net of 18 measure points on the territory of the Republic of Macedonia.
Delipetrov, T. +2 more
core
Wavelet analysis of geomagnetic jerks [PDF]
, 2013 Geomagnetic jerks, or secular variation impulses, are abrupt changes in the slope of the first time derivative of the Earth's magnetic field. These changes occur on time scales of the order of a year. It has been demonstrated that the jerks might be more
de Wit, Tjaart Cornelis
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Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract Recent works suggest there are periods when the Sun encountered massive interstellar cold clouds which compressed the heliosphere to within Earth's orbit, exposing Earth to interstellar galactic cosmic rays and energetic particles of heliospheric origin.
Anna Nica +4 more
wiley +1 more source
, 1932 This data publication includes the half-hourly Hp30 and ap30 indices as well as the hourly Hp60 and ap60 indices. All are unitless and collectively denoted as Hpo or Hpo index family.
Bronkalla, Oliver +4 more
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Saint Petersburg magnetic observatory: from Voeikovo subdivision to INTERMAGNET certification [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2017 Since June 2012 the Saint Petersburg magnetic observatory is being developed and maintained by two institutions of the Russian Academy of Sciences (RAS) – the Geophysical Center of RAS (GC RAS) and the Saint Petersburg branch of the Pushkov Institute ...
R. Sidorov +11 more
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