Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 42, issue 1
Articles | Volume 42, issue 1
https://doi.org/10.5194/angeo-42-255-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-42-255-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 42, issue 1
Regular paper
 | Highlight paper
 | 
10 Jun 2024
Regular paper | Highlight paper |  | 10 Jun 2024

On the importance of middle-atmosphere observations on ionospheric dynamics using WACCM-X and SAMI3

Fabrizio Sassi, Angeline G. Burrell, Sarah E. McDonald, Jennifer L. Tate, and John P. McCormack

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Cited articles

Alken, P., Thébault, E., Beggan, C. D., Amit, H., Aubert, J., Baerenzung, J., Bondar, T. N., Brown, W. J., Califf, S., Chambodut, A., Chulliat, A., Cox, G. A., Finlay, C. C., Fournier, A., Gillet, N., Grayver, A., Hammer, M. D., Holschneider, M., Huder, L., Hulot, G., Jager, T., Kloss, C., Korte, M., Kuang, W., Kuvshinov, A., Langlais, B., Léger, J. M., Lesur, V., Livermore, P. W., Lowes, F. J., Macmillan, S., Magnes, W., Mandea, M., Marsal, S., Matzka, J., Metman, M. C., Minami, T., Morschhauser, A., Mound, J. E., Nair, M., Nakano, S., Olsen, N., Pavón-Carrasco, F. J., Petrov, V. G., Ropp, G., Rother, M., Sabaka, T. J., Sanchez, S., Saturnino, D., Schnepf, N. R., Shen, X., Stolle, C., Tangborn, A., Tøffner-Clausen, L., Toh, H., Torta, J. M., Varner, J., Vervelidou, F., Vigneron, P., Wardinski, I., Wicht, J., Woods, A., Yang, Y., Zeren, Z., and Zhou, B.: International Geomagnetic Reference Field: the thirteenth generation, Earth Planets Space, 73, 49, https://doi.org/10.1186/s40623-020-01288-x, 2021. a
Burrell, A. and Heelis, R.: The influence of hemispheric asymmetries on field-aligned ion drifts at the geomagnetic equator, Geophys. Res. Lett., 39, L19101, https://doi.org/10.1029/2012GL053637, 2012. a
Burrell, A., Heelis, R., and Stoneback, R.: Equatorial longitude and local time variations of topside magnetic field-aligned ion drifts at solar minimum, J. Geophys. Res., 117, A04304, https://doi.org/10.1029/2011JA017264, 2012. a
Coster, A.: MIT/Haystack Observatory, Data from the CEDAR Madrigal database [data set], XX in the URL is the day of month, https://w3id.org/cedar?experiment_list=experiments3/2013/gps/XXjan13&file_list=los_201301XX.001.h5 (last access: 3 October 2023), 2013. a
Eckermann, S. D., Hoppel, K. W., Coy, L., McCormack, J. P., Siskind, D., Nielsen, K., Kochenash, A., Stevens, M. H., Englert, C. R., Singer, W., and Hervig, M.: High-Altitude data assimilation system experiments for the northern summer mesosphere season of 2007, J. Atmos. Sol.-Terr. Phy., 71, 531–551, https://doi.org/10.1016/j.jastp.2008.09.036, 2009. a
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This paper gives an outlook on what will happen to the predictability of the ionosphere and upper atmosphere in the case we no longer should have relevant measurements in the mesosphere. It shows how important global measurements in the mesosphere are for the predictability of the variability of the ionosphere and thus for our communication and navigation systems. This is particularly important because the satellites that currently provide us with observations of the mesosphere have all already far exceeded their originally planned lifetimes (e.g. SABER, MLS, ...).
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This study shows how middle-atmospheric data (starting at 40 km) affect day-to-day ionospheric variability. We do this by using lower atmospheric measurements that include and exclude the middle atmosphere in a coupled ionosphere–thermosphere model. Comparing the two simulations reveals differences in two thermosphere–ionosphere coupling mechanisms. Additionally, comparison against observations showed that including the middle-atmospheric data improved the resulting ionosphere.
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