Comparison of empirical models of ionospheric heating to global simulations
Intense currents produced during geomagnetic storms dissipate energy in the ionosphere through Joule heating. This dissipation has significant space weather effects, and thus it is important to determine the ability of physics-based simulations to replicate real events quantitatively. Several empiri...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-06-01
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| Series: | Frontiers in Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fspas.2023.1170390/full |
| _version_ | 1797809128377155584 |
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| author | Fatemeh Bagheri Ramon E. Lopez |
| author_facet | Fatemeh Bagheri Ramon E. Lopez |
| author_sort | Fatemeh Bagheri |
| collection | DOAJ |
| description | Intense currents produced during geomagnetic storms dissipate energy in the ionosphere through Joule heating. This dissipation has significant space weather effects, and thus it is important to determine the ability of physics-based simulations to replicate real events quantitatively. Several empirical models estimate Joule heating based on ionospheric currents using the AE index. In this study, we select 11 magnetic storm simulations from the CCMC database and compare the integrated Joule heating in the simulations with the results of empirical models. We also use the SWMF global magnetohydrodynamic simulations for 12 storms to reproduce the correlation between the simulated AE index and simulated Joule heating. We find that the scale factors in the empirical models are half what is predicted by the SWMF simulations. |
| first_indexed | 2024-03-13T06:47:56Z |
| format | Article |
| id | doaj.art-f565ed8b89ab4051ac49ba2952181384 |
| institution | Directory Open Access Journal |
| issn | 2296-987X |
| language | English |
| last_indexed | 2024-03-13T06:47:56Z |
| publishDate | 2023-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Astronomy and Space Sciences |
| spelling | doaj.art-f565ed8b89ab4051ac49ba29521813842023-06-08T04:56:40ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2023-06-011010.3389/fspas.2023.11703901170390Comparison of empirical models of ionospheric heating to global simulationsFatemeh BagheriRamon E. LopezIntense currents produced during geomagnetic storms dissipate energy in the ionosphere through Joule heating. This dissipation has significant space weather effects, and thus it is important to determine the ability of physics-based simulations to replicate real events quantitatively. Several empirical models estimate Joule heating based on ionospheric currents using the AE index. In this study, we select 11 magnetic storm simulations from the CCMC database and compare the integrated Joule heating in the simulations with the results of empirical models. We also use the SWMF global magnetohydrodynamic simulations for 12 storms to reproduce the correlation between the simulated AE index and simulated Joule heating. We find that the scale factors in the empirical models are half what is predicted by the SWMF simulations.https://www.frontiersin.org/articles/10.3389/fspas.2023.1170390/fullionospheric joule heatingCCMC simulationsSWMF simulationsAE indexFAC |
| spellingShingle | Fatemeh Bagheri Ramon E. Lopez Comparison of empirical models of ionospheric heating to global simulations Frontiers in Astronomy and Space Sciences ionospheric joule heating CCMC simulations SWMF simulations AE index FAC |
| title | Comparison of empirical models of ionospheric heating to global simulations |
| title_full | Comparison of empirical models of ionospheric heating to global simulations |
| title_fullStr | Comparison of empirical models of ionospheric heating to global simulations |
| title_full_unstemmed | Comparison of empirical models of ionospheric heating to global simulations |
| title_short | Comparison of empirical models of ionospheric heating to global simulations |
| title_sort | comparison of empirical models of ionospheric heating to global simulations |
| topic | ionospheric joule heating CCMC simulations SWMF simulations AE index FAC |
| url | https://www.frontiersin.org/articles/10.3389/fspas.2023.1170390/full |
| work_keys_str_mv | AT fatemehbagheri comparisonofempiricalmodelsofionosphericheatingtoglobalsimulations AT ramonelopez comparisonofempiricalmodelsofionosphericheatingtoglobalsimulations |