Response of Ionospheric Equatorial Ionization Crests to Lunar Phase

Tsung Yu Wu; Jann Yenq Liu; Chi Yen Lin; Loren C. Chang

doi:10.1029/2019GL086862

Response of Ionospheric Equatorial Ionization Crests to Lunar Phase

Tsung Yu Wu, Jann Yenq Liu, Chi Yen Lin, Loren C. Chang

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The strength, appearance time, and latitudinal location of the equatorial ionization anomaly (EIA) crest response to the lunar phase are examined using the total electron content of global ionosphere maps during the 18-year period of 2000–2017. The total electron content of the EIA crest reveals semidiurnal tides with 12.42-hr period, while the appearance time and latitude of the EIA crests present prominent semimonthly lunar tides of 14.77-day period. The EIA crests on new/full moon (first/third quarter) lead (lag) those of the overall 18-year average by about 20–40 min, while the EIA crests move the furthest poleward and equatorward 2–5 days after new/full moon and first/third quarter, respectively. Amplitudes of the semimonthly lunar tide in the EIA crest appearance times and latitudes yield the greatest value around perihelion and the smallest value around aphelion, which shows that the solar declination and seasonal effects are important.

Original language	English
Article number	e2019GL086862
Journal	Geophysical Research Letters
Volume	47
Issue number	7
DOIs	https://doi.org/10.1029/2019GL086862
State	Published - 16 Apr 2020

Keywords

equatorial ionospheric anomaly
lunar phase
lunar tide
solar declination

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10.1029/2019GL086862

Scientific Exploration, Systems Development, and Resource Utilization of Very Low Earth Orbit( II )
Chang, C.-W. (PI)
1/02/20 → 31/01/21
Project: Research

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title = "Response of Ionospheric Equatorial Ionization Crests to Lunar Phase",

abstract = "The strength, appearance time, and latitudinal location of the equatorial ionization anomaly (EIA) crest response to the lunar phase are examined using the total electron content of global ionosphere maps during the 18-year period of 2000–2017. The total electron content of the EIA crest reveals semidiurnal tides with 12.42-hr period, while the appearance time and latitude of the EIA crests present prominent semimonthly lunar tides of 14.77-day period. The EIA crests on new/full moon (first/third quarter) lead (lag) those of the overall 18-year average by about 20–40 min, while the EIA crests move the furthest poleward and equatorward 2–5 days after new/full moon and first/third quarter, respectively. Amplitudes of the semimonthly lunar tide in the EIA crest appearance times and latitudes yield the greatest value around perihelion and the smallest value around aphelion, which shows that the solar declination and seasonal effects are important.",

keywords = "equatorial ionospheric anomaly, lunar phase, lunar tide, solar declination",

author = "Wu, {Tsung Yu} and Liu, {Jann Yenq} and Lin, {Chi Yen} and Chang, {Loren C.}",

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volume = "47",

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T1 - Response of Ionospheric Equatorial Ionization Crests to Lunar Phase

AU - Wu, Tsung Yu

AU - Liu, Jann Yenq

AU - Lin, Chi Yen

AU - Chang, Loren C.

PY - 2020/4/16

Y1 - 2020/4/16

N2 - The strength, appearance time, and latitudinal location of the equatorial ionization anomaly (EIA) crest response to the lunar phase are examined using the total electron content of global ionosphere maps during the 18-year period of 2000–2017. The total electron content of the EIA crest reveals semidiurnal tides with 12.42-hr period, while the appearance time and latitude of the EIA crests present prominent semimonthly lunar tides of 14.77-day period. The EIA crests on new/full moon (first/third quarter) lead (lag) those of the overall 18-year average by about 20–40 min, while the EIA crests move the furthest poleward and equatorward 2–5 days after new/full moon and first/third quarter, respectively. Amplitudes of the semimonthly lunar tide in the EIA crest appearance times and latitudes yield the greatest value around perihelion and the smallest value around aphelion, which shows that the solar declination and seasonal effects are important.

AB - The strength, appearance time, and latitudinal location of the equatorial ionization anomaly (EIA) crest response to the lunar phase are examined using the total electron content of global ionosphere maps during the 18-year period of 2000–2017. The total electron content of the EIA crest reveals semidiurnal tides with 12.42-hr period, while the appearance time and latitude of the EIA crests present prominent semimonthly lunar tides of 14.77-day period. The EIA crests on new/full moon (first/third quarter) lead (lag) those of the overall 18-year average by about 20–40 min, while the EIA crests move the furthest poleward and equatorward 2–5 days after new/full moon and first/third quarter, respectively. Amplitudes of the semimonthly lunar tide in the EIA crest appearance times and latitudes yield the greatest value around perihelion and the smallest value around aphelion, which shows that the solar declination and seasonal effects are important.

KW - equatorial ionospheric anomaly

KW - lunar phase

KW - lunar tide

KW - solar declination

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U2 - 10.1029/2019GL086862

DO - 10.1029/2019GL086862

M3 - 期刊論文

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SN - 0094-8276

VL - 47

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 7

M1 - e2019GL086862

ER -

Response of Ionospheric Equatorial Ionization Crests to Lunar Phase

Abstract

Keywords

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Scientific Exploration, Systems Development, and Resource Utilization of Very Low Earth Orbit( II )

Cite this