![]() Shi, The Secular Variation of the Center of Geomagnetic South Atlantic Anomaly and Its Effect on the Distribution of Inner Radiation Belt Particles. Macmillan, Geomagnetic observations on Tristan da Cunha. Russell (eds.), Introduction to Space Physics (Cambridge University, Cambridge, 1995) Qamili, New perspectives in the study of the earth’s magnetic field and climate connection: The use of transfer entropy. Osete, Emergence and evolution of the South Atlantic Anomaly revealed by the new paleomagnetic reconstruction SHAWQ2k. Wu, Toward a possible next geomagnetic transition? Nat. Pinheiro, Relating the south atlantic anomaly and geomagnetic flux patches. Gasperini, Geomagnetic South Atlantic Anomaly and global sea level rise: A direct connection? J. Deschambault, Solar particle events seen by the MOPITT instrument. Mendes, The south atlantic magnetic anomaly: three decades of research. Pacca, Time evolution of the South Atlantic Magnetic Anomaly. Baerenzung, Predictions of the geomagnetic secular variation based on the ensemble sequential assimilation of geomagnetic field models by dynamo simulations. Mandea, The South Atlantic Anomaly throughout the solar cycle. Master’s thesis, University of the Republic Uruguay. Caraballo, The south atlantic magnetic anomaly phenomena: Its impact on the technological infrastructure. De Santis, The South Atlantic Anomaly: The Key for a Possible Geomagnetic Reversal. Abdul Hamid, Characterization of the South Atlantic Anomaly. Between the conjugate pairs, pulsations showed moderate to low signal coherences and phase lags. ![]() Also, in the SAMA, concerning the conjugate stations, Pc5 pulsation presents the highest energy values in the typical Pc5 spectra during storm intervals with higher intensity. The pulsation amplitudes were higher in the SAMA region than those in the Northern hemisphere. ![]() Concerning the America-SAMA region, the Pc5 pulsation amplitudes in the Northern hemisphere stations presented pulsation amplitudes following the Asia-Pacific amplitude behavior. As a result, work found that Pc5 pulsations showed simultaneous and similar patterns in the occurrence intervals in the Asia-Pacific region, reinforcing previous results from more restricted research. The methodology integrates spectral analyses based on fast Fourier transform and wavelet transform techniques, obtaining signal characterizations and coherence analysis to highlight the Pc5 pulsation dynamics. ![]() Our procedure uses those data recorded simultaneously in six conjugate-station pairs to identify and characterize the Pc5 pulsation. This study uses the horizontal magnetic components measured in the same time interval in two typical longitudes: the America-SAMA region and Asia-Pacific one, whose stations are under equivalent McIlwain L-parameter (L-shell). This paper investigates the Pc5 magnetic pulsation characteristics influenced by the South Atlantic Magnetic Anomaly (SAMA) in a moderate geomagnetic storm through records analysis of geomagnetically conjugate stations interlinking both hemispheres. ![]()
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