Development of a geomagnetic storm correction to the international reference ionosphere model E-region electron densities using TIMED/SABER observations

C. J. Mertens; X. Xu; J. Fernandez; D. Bilitza; J. M. Russell III; M. G. Mlynczak

doi:10.1117/12.829976

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29 September 2009 Development of a geomagnetic storm correction to the international reference ionosphere model E-region electron densities using TIMED/SABER observations

C. J. Mertens, X. Xu, J. Fernandez, D. Bilitza, J. M. Russell III, M. G. Mlynczak

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Proceedings Volume 7475, Remote Sensing of Clouds and the Atmosphere XIV; 747508 (2009) https://doi.org/10.1117/12.829976
Event: SPIE Remote Sensing, 2009, Berlin, Germany

Abstract

Auroral infrared emission observed from the TIMED/SABER broadband 4.3 um channel is used to develop an empirical geomagnetic storm correction to the International Reference Ionosphere (IRI) E-region electron densities. The observation-based proxy used to develop the storm model is SABER-derived NO⁺(v) 4.3 um volume emission rates (VER). A correction factor is defined as the ratio of storm-time NO+(v) 4.3 um VER to a quiet-time climatological averaged NO⁺(v) 4.3 um VER, which is linearly fit to available geomagnetic activity indices. The initial version of the E-region storm model, called STORM-E, is most applicable within the auroral oval region. The STORM-E predictions of E-region electron densities are compared to incoherent scatter radar electron density measurements during the Halloween 2003 storm events. Future STORM-E updates will extend the model outside the auroral oval.

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C. J. Mertens, X. Xu, J. Fernandez, D. Bilitza, J. M. Russell III, and M. G. Mlynczak "Development of a geomagnetic storm correction to the international reference ionosphere model E-region electron densities using TIMED/SABER observations", Proc. SPIE 7475, Remote Sensing of Clouds and the Atmosphere XIV, 747508 (29 September 2009); https://doi.org/10.1117/12.829976

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