横向非均匀电离层源诱导地电场实时建模的多站点传递函数方法

IF 3.8 2区地球科学 Q2 ASTRONOMY & ASTROPHYSICS

Space Weather-The International Journal of Research and Applications Pub Date : 2023-10-01 DOI:10.1029/2023sw003621

Mikhail Kruglyakov, Elena Marshalko, Alexey Kuvshinov, Maxim Smirnov, Ari Viljanen

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引用次数: 0

摘要

摘要提出了一种新的方法来实时模拟横向非均匀电离层源引起的地电场(GEF)。该方法利用了多站点传递函数概念，在感兴趣的区域内多个站点进行连续磁场测量，以及描述电离层源的空间模式。我们将模拟的GEF与在Fennoscandia的两个地点测量的GEF进行了比较，观察到模型和测量的GEF之间有很好的一致性。此外，我们将基于GEF的地磁感应电流(GIC)与Mäntsälä天然气管道记录点的测量值进行了比较，再次观察到模型和测量值之间的显著一致性。

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

Abstract 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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来源期刊

Space Weather-The International Journal of Research and Applications 地学天文-地球化学与地球物理

CiteScore

5.90

自引率

29.70%

发文量

166

审稿时长

>12 weeks

期刊介绍： Space Weather: The International Journal of Research and Applications (SWE) is devoted to understanding and forecasting space weather. The scope of understanding and forecasting includes: origins, propagation and interactions of solar-produced processes within geospace; interactions in Earth’s space-atmosphere interface region produced by disturbances from above and below; influences of cosmic rays on humans, hardware, and signals; and comparisons of these types of interactions and influences with the atmospheres of neighboring planets and Earth’s moon. Manuscripts should emphasize impacts on technical systems including telecommunications, transportation, electric power, satellite navigation, avionics/spacecraft design and operations, human spaceflight, and other systems. Manuscripts that describe models or space environment climatology should clearly state how the results can be applied.