| Autor: |
Chakraborty, Shibaji, Boteler, David H., Shi, Xueling, Murphy, Benjamin S., Hartinger, Michael D., Wang, Xuan, Lucas, Greg, Baker, Joseph B. H. |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Frontiers in Physics. 10 |
| ISSN: |
2296-424X |
| DOI: |
10.3389/fphy.2022.1022475 |
| Popis: |
Submarine cables have become a vital component of modern infrastructure, but past submarine cable natural hazard studies have mostly focused on potential cable damage from landslides and tsunamis. A handful of studies examine the possibility of space weather effects in submarine cables. The main purpose of this study is to develop a computational model, using Python, of geomagnetic induction on submarine cables. The model is used to estimate the induced voltage in the submarine cables in response to geomagnetic disturbances. It also utilizes newly acquired knowledge from magnetotelluric studies and associated investigations of geomagnetically induced currents in power systems. We describe the Python-based software, its working principle, inputs/outputs based on synthetic geomagnetic field data, and compare its operational capabilities against analytical solutions. We present the results for different model inputs, and find: 1) the seawater layer acts as a shield in the induction process: the greater the ocean depth, the smaller the seafloor geoelectric field; and 2) the model is sensitive to the Ocean-Earth layered conductivity structure. NASA; Natural Resources Canada [80NSSC19K0907, 80NSSC21K1677]; National Science Foundation [20220247]; U.S. Geological Survey [AGS-1935110] Published version SC, XS, MH, and JB were supported by NASA 80NSSC19K0907 and 80NSSC21K1677. DB was supported by Natural Resources Canada contribution number 20220247. SC and XS also thank the National Science Foundation for support under grants AGS-1935110. BM was supported by a Mendenhall Postdoctoral Fellowship through the U.S. Geological Survey. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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