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ANGEO | Articles | Volume 37, issue 4
Ann. Geophys., 37, 645–655, 2019
https://doi.org/10.5194/angeo-37-645-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Ann. Geophys., 37, 645–655, 2019
https://doi.org/10.5194/angeo-37-645-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 30 Jul 2019

Regular paper | 30 Jul 2019

Identifying a possible stratification phenomenon in ionospheric F2 layer using the data observed by the DEMETER satellite: method and results

Xiuying Wang et al.
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Revised manuscript accepted for ANGEO
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Cited articles  
Balan, N. and Bailey, G. J.: Equatorial plasma fountain and its effects: Possibility of an additional layer, J. Geophys. Res., 100, 21421–21432, https://doi.org/10.1029/95JA01555, 1995. 
Balan, N., Bailey, G. J., Abdu, M. A., Oyama, K. I., Richards, P. G., Macdougall, J., and Batista, I. S.: Equatorial plasma fountain and its effects over three locations: Evidence for an additional layer, the F3 layer, J. Geophys. Res., 102, 2047–2056, https://doi.org/10.1029/95JA02639, 1997. 
Balan, N., Batista, I. S., Abdu, M. A., MacDougall, J., and Bailey, G. J.: Physical mechanism and statistics of occurrence of an additional layer in the equatorial ionosphere, J. Geophys. Res.-Atmos., 103, 29169–29182, https://doi.org/10.1029/98JA02823, 1998. 
Balan, N., Batista, I. S., Abdu, M. A., Bailey, G. J., Watanabe, S., MacDougall, J., and Sobral, J. H. A.: Variability of an additional layer in the equatorial ionosphere over Fortaleza, J. Geophys. Res.-Space, 105, 10603–10613, https://doi.org/10.1029/1999ja000020, 2000. 
Batista, I. S., Abdu, M. A., McDougall, J., and Souza, J. R.: Long term trends in the frequency of occurrence of the F3 layer over Fortaleza, J. Atmos. Sol.-Terr. Phy., 64, 1409–1412, https://doi.org/10.1016/S1364-6826(02)00104-9, 2002. 
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To check the difference between data observed at different altitudes of the DEMETER satellite, a statistical method is adopted to evaluate whether data difference is caused by normal data fluctuation or by altitude adjustment. Based on the method, in situ electron density data at higher altitudes are found to be greater than those at lower altitudes. We speculate that this phenomenon is caused by stratification above F2 peak region. The proposed method is useful when comparing fluctuated data.
To check the difference between data observed at different altitudes of the DEMETER satellite, a...
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