Multi‐Site Transfer Function Approach for Real‐Time Modeling of the Ground Electric Field Induced by Laterally‐Nonuniform Ionospheric Source

We propose a novel approach to model the ground electric field (GEF) induced by laterally-nonuniform ionospheric sources in real time. The approach exploits the multi-site transfer function concept, continuous magnetic field measurements at multiple sites in the region of interest, and spatial modes...

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Bibliographic Details
Main Authors: Kruglyakov, Mikhail, Marshalko, Elena, Kuvshinov, Alexey, Smirnov, Maxim, Viljanen, Ari
Other Authors: orcid:0000-0002-8978-7545, orcid:0000-0002-7960-1786, Ilmatieteen laitos, Finnish Meteorological Institute
Format: Article in Journal/Newspaper
Language:English
Published: John Wiley & Sons 2024
Subjects:
ionosphere
measurement
natural gas
geomagnetism
model agreements
ionosfääri
mittaus
maakaasu
maamagnetismi
sopimusmallit
Fennoscandia
Online Access:http://hdl.handle.net/10138/569987
Description
Summary:We propose a novel approach to model the ground electric field (GEF) induced by laterally-nonuniform ionospheric sources in real time. The approach exploits the multi-site transfer function concept, continuous magnetic field measurements at multiple sites in the region of interest, and spatial modes describing the ionospheric source. We compared the modeled GEFs with those measured at two locations in Fennoscandia and observed good agreement between modeled and measured GEF. Besides, we compared GEF-based geomagnetically induced current (GIC) with that measured at the Mäntsälä natural gas pipeline recording point and again observed remarkable agreement between modeled and measured GIC.

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