Abstract
This research intends to characterize the South Atlantic Anomaly (SAA) by applying the power spectrum analysis approach. The motivation to study the SAA region is due to its nature. A comparison was made between the stations in the SAA region and outside the SAA region during the geomagnetic storm occurrence (active period) and the normal period where no geomagnetic storm occurred. The horizontal component of the data of the Earth's magnetic field for the occurrence of the active period was taken on 11 March 2011 while for the normal period it was taken on 3 February 2011. The data sample rate used is 1 min. The outcome of the research revealed that the SAA region had a tendency to be persistent during both periods. It can be said that the region experiences these characteristics because of the Earth's magnetic field strength. Through the research, it is found that as the Earth's magnetic field increases, it is likely to show an antipersistent value. This is found in the high-latitude region. The lower the Earth's magnetic field, the more it shows the persistent value as in the middle latitude region. In the region where the Earth's magnetic field is very low like the SAA region it shows a tendency to be persistent.
| Original language | English |
|---|---|
| Pages (from-to) | 25-35 |
| Number of pages | 11 |
| Journal | Nonlinear Processes in Geophysics |
| Volume | 26 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 29 Mar 2019 |
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ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Geophysics
- Geochemistry and Petrology
Cite this
Characterization of the South Atlantic Anomaly. / Afifi Nasuddin, Khairul; Abdullah, Mardina; Shazana Abdul Hamid, Nurul.
In: Nonlinear Processes in Geophysics, Vol. 26, No. 1, 29.03.2019, p. 25-35.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Characterization of the South Atlantic Anomaly
AU - Afifi Nasuddin, Khairul
AU - Abdullah, Mardina
AU - Shazana Abdul Hamid, Nurul
PY - 2019/3/29
Y1 - 2019/3/29
N2 - This research intends to characterize the South Atlantic Anomaly (SAA) by applying the power spectrum analysis approach. The motivation to study the SAA region is due to its nature. A comparison was made between the stations in the SAA region and outside the SAA region during the geomagnetic storm occurrence (active period) and the normal period where no geomagnetic storm occurred. The horizontal component of the data of the Earth's magnetic field for the occurrence of the active period was taken on 11 March 2011 while for the normal period it was taken on 3 February 2011. The data sample rate used is 1 min. The outcome of the research revealed that the SAA region had a tendency to be persistent during both periods. It can be said that the region experiences these characteristics because of the Earth's magnetic field strength. Through the research, it is found that as the Earth's magnetic field increases, it is likely to show an antipersistent value. This is found in the high-latitude region. The lower the Earth's magnetic field, the more it shows the persistent value as in the middle latitude region. In the region where the Earth's magnetic field is very low like the SAA region it shows a tendency to be persistent.
AB - This research intends to characterize the South Atlantic Anomaly (SAA) by applying the power spectrum analysis approach. The motivation to study the SAA region is due to its nature. A comparison was made between the stations in the SAA region and outside the SAA region during the geomagnetic storm occurrence (active period) and the normal period where no geomagnetic storm occurred. The horizontal component of the data of the Earth's magnetic field for the occurrence of the active period was taken on 11 March 2011 while for the normal period it was taken on 3 February 2011. The data sample rate used is 1 min. The outcome of the research revealed that the SAA region had a tendency to be persistent during both periods. It can be said that the region experiences these characteristics because of the Earth's magnetic field strength. Through the research, it is found that as the Earth's magnetic field increases, it is likely to show an antipersistent value. This is found in the high-latitude region. The lower the Earth's magnetic field, the more it shows the persistent value as in the middle latitude region. In the region where the Earth's magnetic field is very low like the SAA region it shows a tendency to be persistent.
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U2 - 10.5194/npg-26-25-2019
DO - 10.5194/npg-26-25-2019
M3 - Article
AN - SCOPUS:85064747046
VL - 26
SP - 25
EP - 35
JO - Nonlinear Processes in Geophysics
JF - Nonlinear Processes in Geophysics
SN - 1023-5809
IS - 1
ER -