Protection against lightning at a geomagnetic observatory

Čop, Rudi; Milev, Goran; Deželjin, D.; Kosmač, Janko

doi:10.5194/gi-3-135-2014

Cited by 4 publications

(3 citation statements)

References 3 publications

(3 reference statements)

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“…The initial study of atmospheric discharges [3] was followed by the study of the influence of transitions of weather fronts on the local magnetic field [14] and artificial sources of noise in the magnetic field [15] [16]. The influence of the Moon could be studied in more detail only during the solar minimum at the transition from the 24th to the 25th solar cycle [17].…”

Section: Greater Level Of Noise In the Local Magnetic Fieldmentioning

confidence: 99%

“…We have been systematically looking for a suitable place to set up such an observatory since 2007 [1]. The method of its construction was mainly influenced by the presence of atmospheric electrical discharges [2], as well as the choice of its measuring instruments [3], which was specially adapted to the conditions in this area. The Observatory is located in the southwestern part of Slovenia, in the area with the highest annual density of lightning in Europe [4].…”

Section: Introductionmentioning

confidence: 99%

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Accelerations in the Local Magnetic Field on the Adriatic Tectonic Microplate

Čop¹,

Rasson²,

Bilc³

2021

OJER

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The high level of noise is a special feature of the geomagnetic field on the territory of Slovenia. The tension of the Adriatic tectonic microplate, on which Slovenia entirely lies, was recognized as one of its sources. The interior of the Earth is also the source of geomagnetic jerks. They are impulses in the secular variation calculated on the basis of monthly or annual mean values of variation of the geomagnetic field. The paper presents an analysis of accelerations in a local magnetic field calculated on the bases of daily mean values of the magnetic field measured at PIA geomagnetic Observatory (Piran, Slovenia) in 2020. These accelerations indicate geomagnetic impulses at the regional level over days or weeks. Then these results are compared with the registered seismic activity in the West Balkans.

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Section: Greater Level Of Noise In the Local Magnetic Fieldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accelerations in the Local Magnetic Field on the Adriatic Tectonic Microplate

Čop¹,

Rasson²,

Bilc³

2021

OJER

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“…Moreover, the SW part of Slovenia is particularly exposed to frequent electrical discharges in the atmosphere, where the annual number is among the highest in Europe. Following a lightning strike, it was necessary to set up the equipment with efficient protection against such strikes to ensure reliable continuous measurements [2]. The next natural source of magnetic noise recorded during geomagnetic field measurements was the movement of weather fronts over the territory [3].…”

Section: Introductionmentioning

confidence: 99%

The Use of Geomagnetic Measurements to Study Local Tectonics: Case for the NE Part of the Adria-Eurasia Collisional Zone

Pavlovčič-Prešeren¹,

Čop²,

Kuhar³

2020

OJER

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Determination of the correlation between the energy-density changes in geomagnetic field and seismic events is a challenging scientific topic that allows the study of local tectonics using magnetometers. The magnetised properties of the crustal field of the Earth change due to natural sources and/or human activities that affect the environment. The latter can be avoided by setting up observatories in "geomagnetically-quiet" locations, while the natural sources, which describe the combined effects due to changes in the core, lithosphere, external or electromagnetically induced field, cannot be easily eliminated. This research focused on the investigation of local changes in the geomagnetic field in relation to evidently significant local tectonics in the vicinity of the PIA (Piran, Slovenia) geomagnetic observatory. It is obvious that geomagnetic measurements from PIA contain much higher levels of noise compared to the surrounding magnetometers in Italy and Croatia. According to previous geodynamic studies, the position of the PIA observatory is specific, since it is located at an Adriatic microplate that collides under the Eurasian plate. At this point it can be assumed that the reason for high-level noise in geomagnetic observations is due to the still ongoing Adria-Eurasia collisional process. Furthermore, the study of the earthquake on 1 November 2015 with a magnitude of 4.2 and its epicentre 150 km from PIA showed the correlation between higher energy density of the Earth's magnetic field and the earthquake occurrence. From the results acquired by the computational strategy described in the research, it is obvious that, as expected, a few days prior and after the earthquake higher Earth's magnetic field indicated some significant changes in the local geomagnetic field that might occur due to the increased stress in the Earth's crust in the northeastern part of the Adria-Eurasia collisional zone.

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Snowstorm at the geomagnetic observatory

Čop¹

2015

Geosci. Instrum. Method. Data Syst.

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Abstract. The Sinji Vrh Geomagnetic Observatory (hereinafter the Observatory) is situated on Gora above Ajdovščina, a highland karst plateau, in the southwestern part of Slovenia. The Observatory operates in exceptional geological and meteorological conditions due to its location. The very first measurements at the time of initial tests showed that weather fronts induce changes in the local magnetic field. The first measurements intended to determine the value of this influence were carried out at the end of summer 2011. In 2013 the first such measurements were carried out in January. This article presents the results of these measurements, showing how the snowstorm induced changes in Earth's magnetic field.

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Protection against lightning at a geomagnetic observatory

Cited by 4 publications

References 3 publications

Accelerations in the Local Magnetic Field on the Adriatic Tectonic Microplate

Accelerations in the Local Magnetic Field on the Adriatic Tectonic Microplate

The Use of Geomagnetic Measurements to Study Local Tectonics: Case for the NE Part of the Adria-Eurasia Collisional Zone

Snowstorm at the geomagnetic observatory

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