TY - JOUR
T1 - Response of Ionospheric Profile Parameters to Equatorial Electrojet Over Peruvian Station
AU - Bello, S. A.
AU - Abdullah, M.
AU - Hamid, N. S.A.
AU - Reinisch, B. W.
AU - Yoshikawa, A.
AU - Fujimoto, A.
N1 - Funding Information:
The authors thank the Jicamarca Radio Observatory for making their data available through the Lowell GIRO Data Center (http://giro.uml.edu/). We are equally grateful to the Magnetic Data Acquisition System observatory for the geomagnetic data. Geomagnetic quiet days are from World Data Center (http://wdc.kugi.kyoto‐u.ac.jp/). The solar indices F10.7 were downloaded from the OmniWeb (https://omniweb. gsfc.nasa.gov/form/dx1.html). This research was supported by grant number GUP‐2016‐016 of Universiti Kebangsaan Malaysia. One of the authors, A. Y., is supported in part by JSPS Core‐to‐Core Program (B. Asia‐Africa Science Platforms), Formation of Preliminary Center for Capacity Building for Space Weather Research, and JSPS KAKENHI grant number 15H05815. S. A. B. thanks the anonymous reviewers for their com ments and evaluation of this paper.
PY - 2019/4
Y1 - 2019/4
N2 - The response of the ionospheric bottomside electron density profile parameters of the F2 layer, namely, the maximum electron density (NmF2), the maximum height of F2 layer (hmF2), and bottomside thickness (B0) parameter to the equatorial electrojet (EEJ) current is examined for a Peruvian location at the Jicamarca station (12 °S, 76.9 °W) in the South American sector. The results of the analysis show that both hmF2 and B0 increase for ~2 h before sunrise and exhibit a postsunset peak during the equinoctial and summer months. The increase in the peak height, hmF2, is observed to terminate before midday, while B0 continued to increase throughout the daytime. The apparent midday and postnoon peaks in NmF2 occur in all the seasons under study. It was demonstrated that a relationship exists between EEJ and the profile parameters hmF2 and B0 during low and moderate solar conditions. Conversely, the correlation coefficient between EEJ and NmF2 is statistically significant only during solar minimum conditions but correlates poorly, if at all, with EEJ during moderate solar activity.
AB - The response of the ionospheric bottomside electron density profile parameters of the F2 layer, namely, the maximum electron density (NmF2), the maximum height of F2 layer (hmF2), and bottomside thickness (B0) parameter to the equatorial electrojet (EEJ) current is examined for a Peruvian location at the Jicamarca station (12 °S, 76.9 °W) in the South American sector. The results of the analysis show that both hmF2 and B0 increase for ~2 h before sunrise and exhibit a postsunset peak during the equinoctial and summer months. The increase in the peak height, hmF2, is observed to terminate before midday, while B0 continued to increase throughout the daytime. The apparent midday and postnoon peaks in NmF2 occur in all the seasons under study. It was demonstrated that a relationship exists between EEJ and the profile parameters hmF2 and B0 during low and moderate solar conditions. Conversely, the correlation coefficient between EEJ and NmF2 is statistically significant only during solar minimum conditions but correlates poorly, if at all, with EEJ during moderate solar activity.
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U2 - 10.1029/2018EA000537
DO - 10.1029/2018EA000537
M3 - Article
AN - SCOPUS:85065034488
VL - 6
SP - 617
EP - 628
JO - Earth and Space Science
JF - Earth and Space Science
SN - 2333-5084
IS - 4
ER -