Articles | Volume 38, issue 3
https://doi.org/10.5194/angeo-38-789-2020
https://doi.org/10.5194/angeo-38-789-2020
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30 Jun 2020
Regular paper | Highlight paper |  | 30 Jun 2020

Lower-thermosphere response to solar activity: an empirical-mode-decomposition analysis of GOCE 2009–2012 data

Alberto Bigazzi, Carlo Cauli, and Francesco Berrilli

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Cited articles

Bowman, B. R., Tobiska, W. K., Marcos, F., and Huang, C.: The Thermospheric Density Model JB2008 using New EUV Solar and Geomagnetic Indices, in: 37th COSPAR Scientific Assembly, vol. 37, p. 367, 2008. a
Bruinsma, S. L., Doornbos, E., and Bowman, B. R.: Validation of GOCE densities and evaluation of thermosphere models, Adv. Space Res., 54, 576–585, https://doi.org/10.1016/j.asr.2014.04.008, 2014. a, b
Del Zanna, G. and Andretta, V.: The EUV spectrum of the Sun: SOHO CDS NIS irradiances from 1998 until 2010, Astron. Astrophys., 528, A139, https://doi.org/10.1051/0004-6361/201016106, 2011. a
Drinkwater, M. R., Floberghagen, R., Haagmans, R., Muzi, D., and Popescu, A.: VII: CLOSING SESSION: GOCE: ESA's First Earth Explorer Core Mission, Space Sci. Rev., 108, 419–432, https://doi.org/10.1023/A:1026104216284, 2003. a
Dudok de Wit, T. and Bruinsma, S.: Determination of the most pertinent EUV proxy for use in thermosphere modeling, Geophys. Res. Lett., 38, L19102, https://doi.org/10.1029/2011GL049028, 2011. a, b
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Short summary
Forecasting the thermosphere (atmosphere's uppermost layer from 90 to 800 km altitude) is crucial to space mission design, spacecraft operations and space surveillance. The thermosphere is controlled by the Sun through variable solar extreme-ultraviolet radiation and the solar wind. We show how the solar indices Mg II and Ap may be used in forecasting thermospheric density at 260 km, a very low altitude, where the GOCE satellite operated from 2009 to 2013, during the full rise of solar cycle 24.