Results 51 to 60 of about 7,095,631 (100)
Dizhen xuebao, 2023 提出长短极距比值干扰源定位方法用来定位地电观测中出现的地表干扰源。该方法基于均匀半空间模型且地表干扰为点电源，利用地表不同位置的干扰源所引起的同测向长短极距的电场变化差异，联合多测向比值来定位干扰源位置，并应用到徐庄子台漏电干扰一例和高邮台偶极源试验中。结果表明：利用长短极距比值法，能有效定位干扰点源，且能定位偶极干扰源的其中一个电极。
Jieyu Tan, Lanping Li, Junsong Sun
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Earth and Space Science, Volume 13, Issue 9, September 2026.Abstract Reliable prediction of earthquakes and rock mass failure has long been hampered by a fundamental trade‐off: achieving both a long warning window and high prediction accuracy. Physical models, such as the failure forecast method (FFM) based on the time‐reversed Omori law, can provide longer warning windows but are sensitive to data noise and ...
Jian‐Zhi Zhang +4 more
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The geoelectric field: a link between the troposphere and solar variability
, 1998 The association of the European “Little Ice Age” (1550- 1850; Lamb, 1982) with a period of significantly reduced solar activity (Eddy, 1976) suggests a significant mechanism of climate variation remains to be ...
V. O. Papitashvili +4 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.Abstract Subglacial sedimentary basins in Antarctica are hypothesized to modulate ice flow and biogeochemical cycles via groundwater and geothermal feedbacks, yet their properties remain poorly constrained. Here, we present a joint quantitative analysis of new magnetotelluric (MT) data acquired at Thwaites Glacier (TG) and WAIS Divide, alongside legacy
Siobhan F. Killingbeck +8 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.Abstract The complex conductivity method, also known as spectral induced polarization (SIP), is widely used in hydrogeophysical investigations. Power‐law functions with positive exponents between the in‐phase/quadrature components of complex conductivity and water saturation are key petrophysical relationships to interpret field data.
Siyuan Qiang +3 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.Abstract The spatial association between electrical conductors and ore deposits underpins the widespread use of magnetotellurics (MT) in mineral exploration, yet not all mineral systems preserve a diagnostic conductive signature. Here, we present a high‐resolution MT study of the region hosting the world‐class Broken Hill Pb‐Zn‐Ag deposit (NSW ...
Yahya AlQahtani +4 more
wiley +1 more source
Geomagnetically induced currents in Norway: the northernmost high-voltage power grid in the world
Journal of Space Weather and Space Climate, 2014 We have derived comprehensive statistics of geomagnetic activity for assessing the occurrence of geomagnetically induced currents (GIC) in the Norwegian high-voltage power grid.
Myllys Minna +3 more
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Space Weather Mitigation Decisions by Critical Infrastructure Operators During Solar Cycle 25
Space Weather, Volume 24, Issue 9, September 2026.Abstract The “Gannon Storm” in May 2024 was the largest space weather event experienced in 20 years, generating auroras at latitudes as low as 35°, visible in Florida and Mexico. Such events pose significant operational challenges for critical infrastructure operators, particularly those managing electricity transmission networks, satellite ...
C. M. LaNeve +5 more
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Space Weather, Volume 24, Issue 9, September 2026.Abstract Space weather risk assessment is constrained by the lack of available asset information needed to model geomagnetically induced currents (GICs) in electricity transmission infrastructure. We propose a systematic method that enables risk analysts to collect their own open‐source substation data.
Dennies K. Bor +6 more
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Did Space Weather Delay the 10:05 p.m. Train Departure From Exeter on 18 October 1841?
Space Weather, Volume 24, Issue 9, September 2026.Abstract Although the Carrington Event of 1859 is typically cited as the first extreme space weather event of the scientific era, it is not the earliest example of modern human technology being impacted by geomagnetic activity. The literature includes reliable accounts of disturbances to telegraph equipment during geomagnetic storms dating to the late ...
James A. Wild +5 more
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