Abstract:
We investigate AE time series at one-minute sampling intervals under (a) geomagnetic storm Dst index below -100 nT, (b) weak geomagnetic activity Dst>-20nT, and high-intensity, long-duration continuous auroral activity (HILDCAA). The Takens estimator of correlation dimension and an ensemble of surrogate data sets were calculated for these conditions. No conclusive indication of deterministic behavior was found. The predictability was studied for all series and for surrogated sets. The case corresponding to HILDCAA was the most predictable and the one with the lowest correlation dimension. Thus the magnetosphere during an HILDCAA event may act as a stationary excited system.
Registro:
Documento: |
Artículo
|
Título: | Response of the magnetosphere to perturbation by storms and Alfven wave trains |
Autor: | De La Vega, M.; Favetto, A.B. |
Filiación: | Departamento de Física, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina Departamento de Física, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria-Pab I, 1428 Buenos Aires, Argentina
|
Palabras clave: | Geomagnetic field; Magnetosphere peturbations; magnetosphere |
Año: | 2000
|
Volumen: | 39
|
Número: | 1
|
Página de inicio: | 103
|
Página de fin: | 107
|
Título revista: | Geofisica Internacional
|
Título revista abreviado: | Geofis. Int.
|
ISSN: | 00167169
|
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00167169_v39_n1_p103_DeLaVega |
Referencias:
- Abarbanel, H.D.I., Brown, R., Sidorowich, J.J., Tsimring, L., The analysis of observed chaotic data in physical systems (1993) Rev. Modern Phys., 65, pp. 1331-1392
- Akasofu, S.I., Energy coupling between the solar wind and the magnetosphere (1981) Space Sci. Rev., 28, pp. 121-138
- Campbell, W.H., Geomagnetic storms, the Dst ring-current myth, and lognormal distributions (1996) J. Atmos. Terr. Phys., 58, pp. 1171-1187
- Fraser, A.M., Swinney, H.L., Independent coordinates for strange attractors from mutual information (1986) Phys. Rev. A, 33, pp. 1134-1140
- Kantz, H., Scheiber, T., (1997) Nonlinear Time Series Analysis, , Cambridge University Press, Cambridge
- Klimas, A.J., Vassiliadis, D., Baker, D.N., Roberts, D.A., The organized nonlinear dynamics of the magnetosphere (1996) J. Geophys. Res., A6, pp. 13089-13113
- Prichard, D., The correlation dimension of differenced data (1994) Phys. Lett. A, 191, pp. 245-250
- Prichard, D., Price, C.P., Spurious dimension estimates from time series of geomagnetic indices (1992) Geophys. Res. Lett., 79, pp. 1623-1626
- Roberts, D.A., Is there a strange attactor in the magnetosphere? (1991) J. Geophys. Res., 96, pp. 16031-16038
- Sharma, A.S., Vassiliadis, D.V., Papadopoulos, K., Reconstruction of low-dimensional magnetospheric dynamics by singular spectrum analysis (1993) Geophys. Res. Lett., 20, pp. 335-338
- Tsurutani, B.T., Gonzalez, W.D., The cause of high-intensity long duration continuous AE activity (HILDCAAS): Interplanetary Alfven wave trains (1987) Planet. Space Sci., 35, pp. 405-412
- Vassiliadis, D.V., Sharma, A.S., Eastman, T.E., Papadopoulos, K., Low-dimensional chaos in magnetospheric activity from AE time series (1990) Geophys. Res. Lett., 17, pp. 1841-1844
Citas:
---------- APA ----------
De La Vega, M. & Favetto, A.B.
(2000)
. Response of the magnetosphere to perturbation by storms and Alfven wave trains. Geofisica Internacional, 39(1), 103-107.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00167169_v39_n1_p103_DeLaVega [ ]
---------- CHICAGO ----------
De La Vega, M., Favetto, A.B.
"Response of the magnetosphere to perturbation by storms and Alfven wave trains"
. Geofisica Internacional 39, no. 1
(2000) : 103-107.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00167169_v39_n1_p103_DeLaVega [ ]
---------- MLA ----------
De La Vega, M., Favetto, A.B.
"Response of the magnetosphere to perturbation by storms and Alfven wave trains"
. Geofisica Internacional, vol. 39, no. 1, 2000, pp. 103-107.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00167169_v39_n1_p103_DeLaVega [ ]
---------- VANCOUVER ----------
De La Vega, M., Favetto, A.B. Response of the magnetosphere to perturbation by storms and Alfven wave trains. Geofis. Int. 2000;39(1):103-107.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00167169_v39_n1_p103_DeLaVega [ ]