Results 81 to 90 of about 9,321 (201)
Tectonic interpretation of electrical structures beneath the West African craton edge in eastern Senegal [PDF]
, 1988 Des mesures du champ magnétotellurique à travers le bassin côtier du Sénégal et la chaîne des Mauritanides ont permis l'élaboration de modèles de résistivité à deux dimensions. Les sections géoélectriques reflètent les changements latéraux de résistivité
Ritz, Michel, Robineau, Bernard
core +1 more source
Water Resources Research, Volume 61, Issue 11, November 2025.Abstract In recent decades, integrated hydrologic models (IHMs) have advanced our understanding of hydrologic processes across catchment to continental scales. These models couple surface and variably saturated subsurface flow, incorporating land surface models to represent interactions within the critical zone. However, high computational costs hinder
Edinsson Muñoz‐Vega +4 more
wiley +1 more source
Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.Abstract Geomagnetically Induced Currents (GICs) are a hazard to power systems. In this letter, we present a case study to understand why a Sudden‐Commencement‐associated 20A GIC spike, measured at mid‐latitude in Virginia, US, increased to 30A within 2 min of interplanetary shock arrival.
Bhagyashree Waghule +3 more
wiley +1 more source
, 2006 In the previous part I, we have developed the generalized theory of the probability tomography method to image polar and dipolar sources of a vector or scalar geophysical anomaly field.
Mauriello, Paolo, Patella, Domenico
core +2 more sources
Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.Abstract A map is presented of median 1‐min‐resolution peak geoelectric‐field strength across the United States as would be induced by magnetic storms as intense as the 2 September 1859 Carrington storm. The map is constructed from two data sets: Magnetometer time series from 22 ground‐based observatories recording 40 magnetic storms, and surface ...
Jeffrey J. Love +5 more
wiley +1 more source
Archaeological Prospection, Volume 32, Issue 4, Page 899-926, October/December 2025.ABSTRACT The emergence and development of settlement mounds, also called tells, is of major interest for the analysis of socio‐economic transformations occurring in the lower Danube plain during the East European Chalcolithic period. In this context, the multiphase chronology and structural layout of tells are highly relevant indicators, but small ...
Manuel Zolchow +11 more
wiley +1 more source
Parameter sensitivity maps of surface geoelectric arrays [PDF]
, 2006 Parameter sensitivity maps allow a better understanding of various geoelectric responses, and they are also helpful in designing optimal new arrays for specific problems. We constructed systematic parameter sensitivity maps for various geoelectric arrays,
Szalai, Sándor, Szarka, László Csaba
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GEOINFORMATICS, 2007 都市近郊で観測された地電位データには人工ノイズが多く含まれる．ノイズ除去のために参照信号を使うリモートリファレンス処理はデータの質を飛躍的に改善するが，少なくとも一カ所遠隔地で並行観測が必要になる．参照データがない場合，多変量解析手法がしばしば使われる．本稿では，多変量解析の一手法である独立成分分析(ICA)をノイズの大きい地電位データに適用し，微弱な信号の分離を試みた．独立成分分析は多変量データを相互に統計的に独立で非正規な特性を持つ信号に分離する手法である．野島断層での注水実験で得られた地電位データにICAを適用したところ，注水に同期した微弱な地電位変化を分離できた．地電位並行観測データを使った以前の解析や主成分分析の結果に比べて，分離された信号は注水の圧力や流量の変化に良く対応していた ...
Hideki MURAKAMI, Satoru YAMAGUCHI
openaire +2 more sources
Nem-konvencionális geoelektromos elrendezések = Non-conventional geoelectrical arrays [PDF]
, 2009 Négy új módszert fejlesztettünk ki, vizsgáltuk azok elméleti alapjait, megteremtettük a működtetésükhöz szükséges hardveres és szoftveres hátteret és tanulmányoztuk azok terepi használhatóságát.
Novák, Attila +3 more
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Jurnal Ilmiah Pendidikan Fisika Al-Biruni, 2019 Students' comprehension of the theory is often implemented as an effort to improve their achievements. However, other learning processes are rarely carried out by teachers, such as the practice or tools uses as the lesson application. The purpose of this
Rizqi Prastowo +6 more
doaj +1 more source