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| Titel |
Image-model coupling: application to an ionospheric storm |
| VerfasserIn |
N. D. Smith, D. Pokhotelov, C. N. Mitchell, C. J. Budd |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 17, no. 4 ; Nr. 17, no. 4 (2010-08-20), S.361-369 |
| Datensatznummer |
250013706
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| Publikation (Nr.) |
 copernicus.org/npg-17-361-2010.pdf |
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| Zusammenfassung |
| Techniques such as tomographic reconstruction may be used to provide images
of electron content in the ionosphere. Models are also available which
attempt to describe the dominant physical processes operating in the
ionosphere, or the statistical relationships between ionospheric variables.
It is sensible to try and couple model output to tomographic images with the
aim of inferring the values of driver variables which best replicate some
description of electron content imaged in the ionosphere, according to some
criterion. This is a challenging task. The following describes an attempt to
couple an ionospheric model to a tomographic reconstruction of the
geomagnetic storm of 20 November 2003, along a latitudal line segment above
north America. A simple model was chosen to reduce the number of input
drivers that were varied. The investigation illustrates some of the issues
involved in image-model coupling. The ability to make scientific deductions
depends on the accuracy of the assumptions in the ionospheric model and the
accuracy of the tomographic reconstruction. An ensemble technique was used to
help assess confidence in the reconstruction. |
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