Iterative Tomography: A Key to Providing Time-Dependent 3-D Reconstructions of the Inner Heliosphere and the Unification of Space Weather Forecasting Techniques
Over several decades, UCSD has developed and continually updated a time-dependent iterative three-dimensional (3-D) reconstruction technique to provide global heliospheric parameters—density, velocity, and component magnetic fields. For expediency, this has used a kinematic model as a kernel to prov...
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Frontiers Media S.A.
2020-11-01
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| Series: | Frontiers in Astronomy and Space Sciences |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fspas.2020.568429/full |
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| author | Bernard V. Jackson Andrew Buffington Lucas Cota Dusan Odstrcil Dusan Odstrcil Mario M. Bisi Richard Fallows Munetoshi Tokumaru |
| author_facet | Bernard V. Jackson Andrew Buffington Lucas Cota Dusan Odstrcil Dusan Odstrcil Mario M. Bisi Richard Fallows Munetoshi Tokumaru |
| author_sort | Bernard V. Jackson |
| collection | DOAJ |
| description | Over several decades, UCSD has developed and continually updated a time-dependent iterative three-dimensional (3-D) reconstruction technique to provide global heliospheric parameters—density, velocity, and component magnetic fields. For expediency, this has used a kinematic model as a kernel to provide a fit to either interplanetary scintillation (IPS) or Thomson-scattering observations. This technique has been used in near real time over this period, employing Institute for Space-Earth Environmental Research, Japan, IPS data to predict the propagation of these parameters throughout the inner heliosphere. We have extended the 3-D reconstruction analysis to include other IPS Stations around the Globe in a Worldwide Interplanetary Scintillation Stations Network. In addition, we also plan to resurrect the Solar Mass Ejection Imager Thomson-scattering analysis as a basis for 3-D analysis to be used by the latest NASA Small Explorer heliospheric imagers of the Polarimeter to Unify the Corona and Heliosphere mission, the All Sky Heliospheric Imager, and other modern wide-field imagers. Better data require improved heliospheric modeling that incorporates non-radial transport of heliospheric flows, and shock processes. Looking ahead to this, we have constructed an interface between the 3-D reconstruction tomography and 3-D MHD models and currently include the ENLIL model as a kernel in the reconstructions to provide this fit. In short, we are now poized to provide all of these innovations in a next step: to include them for planned ground-based and spacecraft instruments, all to be combined into a truly global 3-D heliospheric system which utilizes these aspects in their data and modeling. |
| first_indexed | 2024-12-13T18:46:01Z |
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| id | doaj.art-8c8fc8f0c9834776b616d8ebfbd04d5e |
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| issn | 2296-987X |
| language | English |
| last_indexed | 2024-12-13T18:46:01Z |
| publishDate | 2020-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Astronomy and Space Sciences |
| spelling | doaj.art-8c8fc8f0c9834776b616d8ebfbd04d5e2022-12-21T23:35:04ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2020-11-01710.3389/fspas.2020.568429568429Iterative Tomography: A Key to Providing Time-Dependent 3-D Reconstructions of the Inner Heliosphere and the Unification of Space Weather Forecasting TechniquesBernard V. Jackson0Andrew Buffington1Lucas Cota2Dusan Odstrcil3Dusan Odstrcil4Mario M. Bisi5Richard Fallows6Munetoshi Tokumaru7Center for Astrophysics and Space Sciences, University of California, San Diego, La Jolla, CA, United StatesCenter for Astrophysics and Space Sciences, University of California, San Diego, La Jolla, CA, United StatesCenter for Astrophysics and Space Sciences, University of California, San Diego, La Jolla, CA, United StatesDepartment of Physics and Astronomy, George Mason University, Fairfax, VA, United StatesNASA-Goddard Spaceflight Center, Greenbelt, MD, United StatesUnited Kingdom Research and Innovation–Science and Technology Facilities Council–RAL Space, Rutherford Appleton Laboratory, Oxfordshire, United KingdomNASA-Goddard Spaceflight Center, Greenbelt, MD, United StatesInstitute for Space-Earth Environmental Research (ISEE), Nagoya University, Furo-cho, JapanOver several decades, UCSD has developed and continually updated a time-dependent iterative three-dimensional (3-D) reconstruction technique to provide global heliospheric parameters—density, velocity, and component magnetic fields. For expediency, this has used a kinematic model as a kernel to provide a fit to either interplanetary scintillation (IPS) or Thomson-scattering observations. This technique has been used in near real time over this period, employing Institute for Space-Earth Environmental Research, Japan, IPS data to predict the propagation of these parameters throughout the inner heliosphere. We have extended the 3-D reconstruction analysis to include other IPS Stations around the Globe in a Worldwide Interplanetary Scintillation Stations Network. In addition, we also plan to resurrect the Solar Mass Ejection Imager Thomson-scattering analysis as a basis for 3-D analysis to be used by the latest NASA Small Explorer heliospheric imagers of the Polarimeter to Unify the Corona and Heliosphere mission, the All Sky Heliospheric Imager, and other modern wide-field imagers. Better data require improved heliospheric modeling that incorporates non-radial transport of heliospheric flows, and shock processes. Looking ahead to this, we have constructed an interface between the 3-D reconstruction tomography and 3-D MHD models and currently include the ENLIL model as a kernel in the reconstructions to provide this fit. In short, we are now poized to provide all of these innovations in a next step: to include them for planned ground-based and spacecraft instruments, all to be combined into a truly global 3-D heliospheric system which utilizes these aspects in their data and modeling.https://www.frontiersin.org/articles/10.3389/fspas.2020.568429/fullsuncoronal mass ejectionscorotating structuresheliospherespace weatherinterplanetary scintillation |
| spellingShingle | Bernard V. Jackson Andrew Buffington Lucas Cota Dusan Odstrcil Dusan Odstrcil Mario M. Bisi Richard Fallows Munetoshi Tokumaru Iterative Tomography: A Key to Providing Time-Dependent 3-D Reconstructions of the Inner Heliosphere and the Unification of Space Weather Forecasting Techniques Frontiers in Astronomy and Space Sciences sun coronal mass ejections corotating structures heliosphere space weather interplanetary scintillation |
| title | Iterative Tomography: A Key to Providing Time-Dependent 3-D Reconstructions of the Inner Heliosphere and the Unification of Space Weather Forecasting Techniques |
| title_full | Iterative Tomography: A Key to Providing Time-Dependent 3-D Reconstructions of the Inner Heliosphere and the Unification of Space Weather Forecasting Techniques |
| title_fullStr | Iterative Tomography: A Key to Providing Time-Dependent 3-D Reconstructions of the Inner Heliosphere and the Unification of Space Weather Forecasting Techniques |
| title_full_unstemmed | Iterative Tomography: A Key to Providing Time-Dependent 3-D Reconstructions of the Inner Heliosphere and the Unification of Space Weather Forecasting Techniques |
| title_short | Iterative Tomography: A Key to Providing Time-Dependent 3-D Reconstructions of the Inner Heliosphere and the Unification of Space Weather Forecasting Techniques |
| title_sort | iterative tomography a key to providing time dependent 3 d reconstructions of the inner heliosphere and the unification of space weather forecasting techniques |
| topic | sun coronal mass ejections corotating structures heliosphere space weather interplanetary scintillation |
| url | https://www.frontiersin.org/articles/10.3389/fspas.2020.568429/full |
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