Planetary wave-type oscillations in the ionosphere and their relationship to mesospheric/lower thermospheric and geomagnetic disturbances at Wuhan (30.6°N, 114.5°E)

Xiong, Juan; Wan, Weixing; Ning, Baiqi; Liu, Libo; Gao, Yingjie

doi:10.1016/j.jastp.2005.03.018

Cited by 46 publications

(47 citation statements)

References 21 publications

(31 reference statements)

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“…In order to investigate the amplitude of the oscillations in both the E s occurrence and the winds in more detail, a fiveorder Butterworth band-pass filter-as applied by Xiong et al (2006)-was used which was centered on 6 days with a full width of 3 days. The band-pass filter analysis was performed on the time series of daily E s occurrence and daily mean wind speeds covering the altitude range from 84 to 100 km, with a 4-km interval, for the period from day 100 to 200 of 2003.…”

Section: Comparison Of Quasi 6-day Waves In E S and Wind Datamentioning

confidence: 99%

Planetary wave oscillations in sporadic E layer occurrence at Wuhan

Zuo

Wan

2008

Earth Planet Sp

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Quasi 6-day oscillations in E s occurrence were observed to occur in relation with planetary wave activity at Wuhan, China (30.6 • N, 114.5• E). Wavelet analysis of E s occurrence time series revealed that a strong 5-to 7-day oscillation was present during the period from about day 120 to 137 of 2003. The same quasi 6-day planetary wave oscillation was also found to dominate the spectrum of concurrent wind data measured in the 80-to 100-km region by a meteor radar, in agreement with the E s occurrence. There is also a great deal of similarity between the 5-to 7-day band-pass filtered waveforms of E s occurrence and the wind data. By estimating the wave phase changes with altitude, the quasi 6-day PW in the zonal wind was found to be in phase with the sporadic E layer critical frequency, f o E s , at about 115 km, close to the observed E s height. The quasi 6-day PW modulation was also present in the amplitude of the 12-h and 24-h periodicities which existed in the f o E s time series. The present results provide new evidence in favor of a planetary wave indirect role on E s formation through the modulation of tides, which in line with previous studies by Pancheva (2002), andPancheva et al. (2003).

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Section: Comparison Of Quasi 6-day Waves In E S and Wind Datamentioning

confidence: 99%

Planetary wave oscillations in sporadic E layer occurrence at Wuhan

Zuo

Wan

2008

Earth Planet Sp

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“…Rishbeth and Mendillo (2001) also found that the "meteorological" sources of the ionospheric variability are comparable to the "geomagnetic" sources. Xiong et al (2006) also tried to separate the ionosonde-observed ionospheric-variability events that are correlated with "meteorological" sources from those with "geomagnetic" sources. They found that ionospheric variability events with periods of 5, 10, and 13.5 days are most likely associated with geomagnetic activity.…”

Section: Introductionmentioning

confidence: 99%

Ionospheric Day-to-Day Variability Around the Whole Heliosphere Interval in 2008

et al. 2011

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Ionospheric F2 peak electron densities (NmF2) measured at ten ionosonde stations have been analyzed to investigate ionospheric day-to-day variability around the Whole Heliosphere Interval (WHI) in 2008 (Day of Year (DOY) 50 -140). The ionosonde data showed that there was significant global day-to-day variability in NmF2. This variability had 5-, 7-, 9-, 11-, 13.5-, and 16 -21-day periodicities. At middle latitudes, the ionosphere appeared to respond directly to the solar-wind and interplanetary-magnetic-field (IMF) induced geomagnetic-activity forcing, with the day-to-day variability having the same periods as those in the solar-wind/IMF and geomagnetic activity. At the geomagnetic Equator, the ionosphere had a strong 7-day periodicity, corresponding to the same periodicity in the IMF B z component. In the equatorial anomaly region, the ionosphere showed more complicated day-to-day variability, dominated by the 9-day periodicity. In addition, there were also peri- odicities of 11 days and 16 -21 days in the ionosonde data at some stations. The ionosonde data were compared with the Coupled Magnetosphere Ionosphere Thermosphere (CMIT) simulations that were driven by the observed solar-wind and IMF data during the WHI. The CMIT simulations showed similar ionospheric daily variability seen in the data. They captured the positive and negative responses of the ionosphere at middle latitudes during the first corotating interaction region (CIR) event in the WHI. The response of the model to the second CIR event, however, was relatively weak.

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“…There is an enormous body of ground-based observations of the mesosphere and lower thermosphere that have been used to study the planetary wave behaviour at different latitudes: radar measurements of neutral winds (Manson et al, 2004;Vincent, 1990;Williams and Avery, 1992;Meek et al, 1996;Thayaparan et al, 1997;Jacobi et al, 1998), measurements of airglow data (Sivjee et al, 1994;Espy et al, 1997;Takahashi et al, 2002;Buriti et al, 2005;López-González et al, 2007), measurements of electron density and other ionospheric parameters of the lower and upper ionosphere (Pancheva et al, 1994Lastovicka, 1997;Lastovicka et al, 2003;Altadill and Apostolov, 2003;Xiong et al, 2006) to mention a few. Also satellite measurements have been used to obtain the climatology of PW (Wu et al, 1994;Hirooka, 2000;Riggin et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Climatology of planetary wave type oscillations with periods of 2–20 days derived from O<sub>2</sub> atmospheric and OH(6-2) airglow observations at mid-latitude with SATI

et al. 2009

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Abstract. The presence of planetary wave type oscillations at mid-latitudes in the mesosphere/lower thermosphere region has been investigated using airglow observations. The observations were taken with a Spectral Airglow Temperature Imager (SATI) installed at Sierra Nevada Observatory (37.06 • N, 3.38 • W) at 2900 m height. Airglow data of the column emission rate of the O 2 Atmospheric (0-1) band and of the OH Meinel (6-2) band and deduced rotational temperatures from 1998 to 2007 have been used in this study. From these observations a climatology of planetary wave type oscillations at this location is inferred. It has been found that the planetary wave type oscillations of 5-day period is predominant in our data throughout the year, with activity greater than 50% during March/April and October/November months. The planetary wave type oscillations of 2-day period is predominant during both solstices, being predominant during winter solstice in O 2 while a 10-day oscillation appears throughout the year with activity around 20% and with maximum activity during spring and autumn equinoxes. The 16-day oscillation has maximum occurrence during autumn-winter while its activity is almost disappeared during spring-summer. No clear seasonal dependence of the amplitude of the planetary wave type oscillations was observed in the cases considered in this study.The waves simultaneously detected in the rotational temperatures deduced from both OH and O 2 emissions usually Correspondence to: M. J. López-González (mariajose@iaa.es) show an upward energy propagation and are affected by dissipation processes.

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Planetary wave-type oscillations in the ionosphere and their relationship to mesospheric/lower thermospheric and geomagnetic disturbances at Wuhan (30.6°N, 114.5°E)

Cited by 46 publications

References 21 publications

Planetary wave oscillations in sporadic E layer occurrence at Wuhan

Planetary wave oscillations in sporadic E layer occurrence at Wuhan

Ionospheric Day-to-Day Variability Around the Whole Heliosphere Interval in 2008

Climatology of planetary wave type oscillations with periods of 2–20 days derived from O<sub>2</sub> atmospheric and OH(6-2) airglow observations at mid-latitude with SATI

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Planetary wave-type oscillations in the ionosphere and their relationship to mesospheric/lower thermospheric and geomagnetic disturbances at Wuhan (30.6°N, 114.5°E)

Cited by 46 publications

References 21 publications

Planetary wave oscillations in sporadic E layer occurrence at Wuhan

Planetary wave oscillations in sporadic E layer occurrence at Wuhan

Ionospheric Day-to-Day Variability Around the Whole Heliosphere Interval in 2008

Climatology of planetary wave type oscillations with periods of 2–20 days derived from O&lt;sub&gt;2&lt;/sub&gt; atmospheric and OH(6-2) airglow observations at mid-latitude with SATI

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Climatology of planetary wave type oscillations with periods of 2–20 days derived from O<sub>2</sub> atmospheric and OH(6-2) airglow observations at mid-latitude with SATI