I. Lemperger
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View article: An alternate representation of the geomagnetic core field obtained using machine learning
An alternate representation of the geomagnetic core field obtained using machine learning Open
Machine learning (ML) as a tool is rapidly emerging in various branches of contemporary geophysical research. To date, however, rarely has it been applied specifically for the study of Earth’s internal magnetic field and the geodynamo. Pre…
View article: Fracture System Characterization by Pressure Probe
Fracture System Characterization by Pressure Probe Open
Pressure Probe (PreP) is in effect a simplified penetrometer: it measures the mechanical resistivity of the soil at shallow depths dropping the probe always from the same height. The resolution of this technique is very good. It is able to…
View article: Can deep learning help in understanding the geodynamo?
Can deep learning help in understanding the geodynamo? Open
Machine learning (ML) is an emerging tool used in an ever-growing number of branches of contemporary geophysical research. To date however, rarely have such methods been applied specifically for the study of Earth’s internal magnetic field…
View article: Comparison of Q-bursts detected near the Earth’s surface and 140 m below ground level
Comparison of Q-bursts detected near the Earth’s surface and 140 m below ground level Open
<p>Q-bursts are signatures of exceptionally powerful lightning strokes which produce intense radio waves typically in the extremely low frequency band (ELF, 3Hz-3kHz). Due to the finite conductivity of the Earth&#8217;s surface, …
View article: Geomagnetic observation system in the Széchenyi István Geophysical Observatory
Geomagnetic observation system in the Széchenyi István Geophysical Observatory Open
Geomagnetic and geoelectric registration has been continuously executed in SZIGO for more than six decades. The Observatory is a member of the global network of the geomagnetic observatories, the so-called INTERMAGNET (https://www.intermag…
View article: Recent progress in identification of the geomagnetic signature of 3D outer core flows
Recent progress in identification of the geomagnetic signature of 3D outer core flows Open
A summary of methods yielding information about the generation and configuration of the geomagnetic main field is presented with special focus on complications concerning these methods. A global source model constructed with the help of ma…
View article: Effect of Upstream ULF Waves on the Energetic Ion Diffusion at the Earth’s Foreshock. II. Observations
Effect of Upstream ULF Waves on the Energetic Ion Diffusion at the Earth’s Foreshock. II. Observations Open
This study reports observations of energetic ions upstream of the Earth’s quasi-parallel bow shock by Cluster at times when interspacecraft separation distances were large. We analyze two individual upstream ion events during high solar wi…