Daytime and nighttime variations of VLF signal during quiet period

T. Afifah, F. Ramli, S. N.A. Ahmad, M. H. Jusoh, Mardina Abdullah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents variations of Very Low Frequency (VLF, 3-30KHz) during quiet days for the period of February, March and April 2010 that extracted from (UKM) Malaysia (2.55°N, 101.46°E) receiver station. The VLF amplitude data were observed from the nearest transmitter stations which are located at 3SB,China (39.26°N, 103.20°E), JJI, Japan (32.09°N, 130.83°E) and VTX, India (08.23°N, 77.45°E). The VLF wave propagate along the Earth-Ionosphere waveguide (EIWG) and recorded by the VLF observation system that established by Stanford Atmospheric Weather Electromagnetic System for Observation Modeling and Education (AWESOME). The analysis covered the VLF amplitude values during daytime and nighttime from three (3) transmitter stations. The results correspond well with the observed time frame, which is clarified ionization level of D-region place significant role of the VLF propagation. This finding is important in characterizing the variations of VLF wave with respect to electromagnetic propagation medium at D-region.

Original languageEnglish
Title of host publication2016 IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages55-58
Number of pages4
ISBN (Electronic)9781509010608
DOIs
Publication statusPublished - 1 May 2017
Event7th IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016 - Langkawi, Kedah, Malaysia
Duration: 11 Dec 201613 Dec 2016

Other

Other7th IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016
CountryMalaysia
CityLangkawi, Kedah
Period11/12/1613/12/16

Fingerprint

D region
daytime
Transmitters
stations
transmitters
Ionosphere
Earth-ionosphere waveguide
electromagnetic wave transmission
Ionization
Malaysia
Waveguides
very low frequencies
Education
Earth (planet)
India
weather
China
Japan
education
receivers

Keywords

  • Daytime
  • Earth-ionosphere waveguide
  • Nighttime
  • VLF

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation

Cite this

Afifah, T., Ramli, F., Ahmad, S. N. A., Jusoh, M. H., & Abdullah, M. (2017). Daytime and nighttime variations of VLF signal during quiet period. In 2016 IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016 (pp. 55-58). [7916475] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APACE.2016.7916475

Daytime and nighttime variations of VLF signal during quiet period. / Afifah, T.; Ramli, F.; Ahmad, S. N.A.; Jusoh, M. H.; Abdullah, Mardina.

2016 IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016. Institute of Electrical and Electronics Engineers Inc., 2017. p. 55-58 7916475.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Afifah, T, Ramli, F, Ahmad, SNA, Jusoh, MH & Abdullah, M 2017, Daytime and nighttime variations of VLF signal during quiet period. in 2016 IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016., 7916475, Institute of Electrical and Electronics Engineers Inc., pp. 55-58, 7th IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016, Langkawi, Kedah, Malaysia, 11/12/16. https://doi.org/10.1109/APACE.2016.7916475
Afifah T, Ramli F, Ahmad SNA, Jusoh MH, Abdullah M. Daytime and nighttime variations of VLF signal during quiet period. In 2016 IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016. Institute of Electrical and Electronics Engineers Inc. 2017. p. 55-58. 7916475 https://doi.org/10.1109/APACE.2016.7916475
Afifah, T. ; Ramli, F. ; Ahmad, S. N.A. ; Jusoh, M. H. ; Abdullah, Mardina. / Daytime and nighttime variations of VLF signal during quiet period. 2016 IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2016. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 55-58
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