Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 44, issue 1
Articles | Volume 44, issue 1
https://doi.org/10.5194/angeo-44-303-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-44-303-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 44, issue 1
Regular paper
 | 
23 Apr 2026
Regular paper |  | 23 Apr 2026

Next-generation Ionospheric Model for Operations – validation and demonstration for space weather and research

Angeline G. Burrell, Sarah McDonald, Dustin Hickey, Meghan Burleigh, Eliana Nossa, Christopher A. Metzler, Manbharat Dhadly, Jennifer L. Tate, and Ellen J. Wagner

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Short summary
The Next-generation Ionospheric Model for Operations (NIMO) is a space weather model developed to provide historic, current, and forecasted information about the density of the ionosphere. This article discusses how NIMO is configured, demonstrates potential use cases for the research community, and validates historic runs using a new suite of metrics designed to allow repeatable, quantitative, model-independent evaluations against observations that may be adopted by other ionospheric models.
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