Results 111 to 120 of about 925 (188)

Geomagnetism review 2014 [PDF]

, 2015
The Geomagnetism team measures, records, models and interprets variations in the Earth’s magnetic field. Our data and research help to develop scientific understanding of the evolution of the solid Earth and its atmospheric, ocean and space ...
Thomson, Alan W.P.
core  

Simulation of the 23 July 2012 Extreme Space Weather Event: What if This Extremely Rare CME Was Earth Directed? [PDF]

Extreme space weather events are known to cause adverse impacts on critical modern day technological infrastructure such as high-voltage electric power transmission grids.
Baker, Daniel N., Galvin, A. B., Glocer, Alex, Kuznetsova, Maria M., Li, Xinlin, Mays, M. Leila, Ngwira, Chigomezyo M., Pulkkinen, Antti, Simunac, Kristin, Zheng, Yihua   +9 more
core   +1 more source

Towards evaluation and simulation of geomagnetically induced currents (GICs) in high-latitude regions [PDF]

, 2019
The Tenth Symposium on Polar Science/Ordinary sessions: [OG] Polar Geosciences, Wed. 4 Dec.
Aleksey Kuvshinov, Dmitry Alekseev, Ksenia Muravieva, Tatiana Kalinina   +3 more
core   +1 more source

Using a Differential Magnetometer Technique to Measure Geomagnetically Induced Currents: An Augmented Approach

Space Weather
Geoelectric fields produced by time‐varying magnetic fields during geomagnetic storms can result in potentially damaging geomagnetically induced currents (GICs) in long conductors at the Earth's surface.
H. G. Parry, I. R. Mann, A. Kale, D. K. Milling, C. Clark, R. Cui, D. Cordell, M. J. Unsworth   +7 more
doaj   +1 more source

Explicit IMF $B_y$-effect maximizes at subauroral latitudes (Dedicated to the memory of Eigil Friis-Christensen)

, 2019
The most important parameter in the coupling between solar wind and geomagnetic activity is the $B_z$-component of the interplanetary magnetic field (IMF).
Gopalswamy, Nat, Holappa, Lauri, Mursula, Kalevi   +2 more
core   +1 more source

Statistical analysis of geomagnetically induced current data measured around Tokyo, Japan

Earth, Planets and Space
We started measuring geomagnetically induced current (GIC) in substations around Tokyo, Japan in 2017 to study the GIC effects on power systems. We defined a period with GIC continuously exceeding 3 A as a GIC event to analyze the long-term data.
Shinichi Watari, Yusuke Ebihara, Aoi Nakamizo   +2 more
doaj   +1 more source

Strong geomagnetic disturbances and induced currents on Earth surface [PDF]

, 2008
Long-term variations in strong geomagnetic storms are analyzed and linked to electric fields induced on Earth. In fact, geomagnetic disturbances generate electric fields that drive currents in the Earth which may have significant effects on electrical ...
Elias, Ana Georgina, Silbergleit, Virginia Mabel   +1 more
core  

Geomagnetically Induced Currents, Transformer Harmonics, and Reactive Power Impacts of the Gannon Storm in May 2024

Space Weather
Geomagnetically induced current (GIC) measurements made at two 3 phase, 3 limb transformers, operating in the Halfway Bush substation in Dunedin, New Zealand have been analyzed during the May 2024 Gannon Storm.
M. A. Clilverd, C. J. Rodger, D. H. Mac Manus, J. B. Brundell, M. Dalzell, A. Renton, V. Lo, A. Lapthorn, A. W. Smith, J. Malone‐Leigh, X. Feng, T. Petersen   +11 more
doaj   +1 more source

Probabilistic assessment of geomagnetically induced current levels based on auroral localization and structure data

Solar-Terrestrial Physics
Development of new probabilistic and statistical models for operational assessment of technospheric risks caused by space weather impacts on high-latitude power systems is a relevant research task with significant practical applications.
Vorobev Andrey, Soloviev Anatoly, Vorobeva Gulnara, Lapin Aleksandr   +3 more
doaj   +1 more source

Measurement of the geomagnetically induced currents (GIC) by the solar activity

, 2019
The aim of this study is to measure the currents geomagnetically induced by the solar activity in the high-voltage powerlines of the electric grid, in order to evaluate when its influence can be a risk to these lines and the electrical supply. The procedure is based on the measurements of magnetic field near the lines.
openaire   +1 more source