On the relevance of source effects in geomagnetic pulsations for induction soundings

Neska, Anne; Reda, Jan Tadeusz; Neska, Mariusz Leszek; Sumaruk, Yuri Petrovich

doi:https://doi.org/10.5194/angeo-36-337-2018

Articles | Volume 36, issue 2

https://doi.org/10.5194/angeo-36-337-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

The Earth’s magnetic field: measurements, data, and applications...

https://doi.org/10.5194/angeo-36-337-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 36, issue 2

Regular paper

|

07 Mar 2018

Regular paper |

| 07 Mar 2018

On the relevance of source effects in geomagnetic pulsations for induction soundings

Anne Neska, Jan Tadeusz Reda, Mariusz Leszek Neska, and Yuri Petrovich Sumaruk

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This preprint is open for discussion and under review for Geoscientific Instrumentation, Methods and Data Systems (GI).

Short summary

Passive electromagnetic induction soundings in the far field live on the fact that natural electromagnetic field variations (their source signals) fulfill the plane-wave assumption. In the frequency range of geomagnetic pulsations some signals (upstream waves) do and others (field line resonances) do not meet this condition. The consequences for several branches of such soundings are shown. A consequence is that a remote reference site may be situated in another continent than the local site.