Chen, S., Chai, L., Xu, K., Wei, Y., Rong, Z., and Wan, W.:
Estimation of the Occurrence Probability of Extreme Geomagnetic Storms by Applying Extreme Value Theory to Aa Index,
J. Geophys. Res.-Space, 124, 9943–9952,
https://doi.org/10.1029/2019JA026947, 2019.
a
Clette, F., Cliver, E., Lefèvre, L., Svalgaard, L., Vaquero, J.,
and Leibacher, J.:
Preface to topical issue: recalibration of the sunspot number,
Sol. Phys., 291, 2479–2486,
https://doi.org/10.1007/s11207-016-1017-8, 2016.
a
Cliver, E. W., Boriakoff, V., and Feynman, J.:
Solar variability and climate change: Geomagnetic aa index and global surface temperature,
Geophys. Res. Lett., 25, 1035–1038,
https://doi.org/10.1029/98GL00499, 1998.
a
Dobrica, V., Demetrescu, C., Boroneant, C., and Maris, G.:
Solar and geomagnetic activity effects on climate at regional and global scales: Case study-Romania,
J. Atmos. Sol.-Terr. Phys., 71, 1727–1735,
https://doi.org/10.1016/j.jastp.2008.03.022, 2009.
a
Du, Z. L., Li, R., and Wang, H. N.:
The Predictive Power of Ohl's Precursor Method, Astron. J., 138, 1998–2001,
https://doi.org/10.1088/0004-6256/138/6/1998, 2009.
a,
b
Echer, E., Gonzalez, W. D., Gonzalez, A. L. C.,
Prestes, A., Vieira, L. E. A., Dal Lago., A., Guarnieri, F. L., and Schuch, N. J.:
Long-term correlation between solar and geomagnetic activity,
J. Atmos. Sol.-Terr. Phys., 66, 1019–1025,
https://doi.org/10.1016/j.jastp.2004.03.011, 2004.
a,
b,
c,
d
El-Borie, M. A., El-Taher, A. M., Thabet, A. A., and Bishara, A. A.:
The impact of asymmetrical distribution of solar activity on geomagnetic indices throughout five solar activity cycles,
Adv. Spa. Res., 64, 278–286,
https://doi.org/10.1016/j.asr.2019.03.040, 2019.
a
Gavrilyeva, G. A.,
Ammosov, P. P., Ammosova, A. M., Koltovskoi, I. I., and Sivtseva, V. I.:
Geomagnetic activity signature in seasonal variations of mesopause temperature over Yakutia,
Proceedings of the SPIE, 10466, 1046670,
https://doi.org/10.1117/12.2288710, 2017.
a
Gonzalez, W. D., Joselyn, J. A., Kamide, Y.,
Kroehl, H. W., Rostoker, G., Tsurutani, B. T., and Vasyliunas, V. M.:
What is a geomagnetic storm?, J. Geophys. Res., 99, 5771–5792, 1994. a
Gonzalez, W. D., Tsurutani, B. T.,
Gonzalez, A. L. C., Smith, E. J., Tang, F., and Akasofu, S.-I.:
Solar wind-magnetosphere coupling during intense magnetic storms (1978–1979),
J. Geophys. Res., 94, 8835–8851,
https://doi.org/10.1029/JA094iA07p08835, 1989.
a
Hathaway, D. H., Wilson, R. M., and Reichmann, E. J.:
The shape of the sunspot cycle,
Sol. Phys., 151, 177–190,
https://doi.org/10.1007/BF00654090, 1994.
a,
b
Kishcha, P. V., Dmitrieva, I. V., and Obridko, V. N.:
Long-term variations of the solar – geomagnetic correlation, total solar irradiance, and northern hemispheric temperature (1868–1997),
J. Atmos. Sol.-Terr. Phys.,
61, 799–808,
https://doi.org/10.1016/S1364-6826(99)00035-8, 1999.
a
Lockwood, M., Stamper, R., and Wild, M. N.:
A doubling of the Sun's coronal magnetic field during the past 100 years,
Nature, 399, 437–439,
https://doi.org/10.1038/20867, 1999.
a
Lukianova, R., Alekseev, G., and Mursula, K.:
Effects of station relocation in the aa index, J. Geophys. Res., 114,
A02105,
https://doi.org/10.1029/2008JA013824, 2009.
a
Marat, D., Galina, D.,
Viktor, D., and Anna, D.:
Dependence of the F2-layer critical frequency median at midlatitudes on geomagnetic activity,
Sol.-Terr. Phys., 3, 67–73,
https://doi.org/10.12737/stp-34201707, 2017.
a
McPherron, R. L.:
Predicting the Ap index from past behavior and solar wind velocity,
Phys. Chem. Earth Pt. C, 24, 45–56,
https://doi.org/10.1016/S1464-1917(98)00006-3, 1999.
a,
b,
c,
d,
e
Mussino, V., Borello, F. O., Storini, M.,
and Nevanlinna, H.:
Long-term variations in the geomagnetic activity level
Part II: Ascending phases of
sunspot cycles, Ann. Geophys., 12, 1071–1075, 1994. a
Ohl, A. I. and Ohl, G. I.: A new method of very long-term prediction of solar activity,
Sol.-Terr. Predict. Proc., 2, 258–263, 1979.
a,
b,
c
Prestes, A., Rigozo, N. R., Echer, E., and Vieira, L. E. A.:
Spectral analysis of sunspot number and geomagnetic indices (1868–2001),
J. Atmos. Sol.-Terr. Phys., 68, 182–190,
https://doi.org/10.1016/j.jastp.2005.10.010, 2006.
a
Russell, C. T. and Mulligan, T.:
The 22-year variation of geomagnetic activity: Implications for the polar magnetic field of the Sun,
Geophys. Res. Lett., 22, 3287–3288,
https://doi.org/10.1029/95GL03086, 1995.
a
Schatten, K. H., Scherrer, P. H., Svalgaard, L., and Wilcox, J.
M.: Using dynamo theory to predict the sunspot number during solar cycle
21, Geophys. Res. Lett., 5, 411–414,
https://doi.org/10.1029/GL005i005p00411, 1978.
a
Singh, P. R., Tiwari, C. M., Saxena, A. K., and Agrawal, S. L.:
Quasi-biennial periodicities and heliospheric modulation of geomagnetic activity during solar cycles 22,
Phys. Scr., 94, 105005,
https://doi.org/10.1088/1402-4896/ab10b6, 2019.
a
Tsurutani, B. T., Gonzalez, W. D.,
Gonzalez, A. L. C., Guarnieri, F. L., Gopalswamy, N., Grande, M., Kamide, Y., Kasahara, Y., Lu, G., Mann, I., McPherron, R., Soraas, F., and Vasyliunas, V.:
Corotating solar wind streams and recurrent geomagnetic activity: A review,
J. Geophys. Res., 111, A07S01,
https://doi.org/10.1029/2005JA011273, 2006.
a,
b
Waldmeier, M.: Über die Struktur der Sonnenflecken,
Astron. Mitt. Zrich, 14, 439–450, 1939.
a,
b
Wang, Y. M., Lean, J., and Sheeley, N. R.:
The long-term variation of the Sun's open magnetic flux,
Geophys. Res. Lett., 27, 505–508,
https://doi.org/10.1029/1999GL010744, 2000.
a
