Investigation of solar cycle dependence of the tides in the low latitude MLT using meteor radar observations

New Findings Relating Tidal Variability and Solar Activity in the Low Latitude MLT Region

“…Meanwhile, the results presented by Guharay et al. (2019) can be interpreted as agreeing to the present since their analysis consider the seasonality of the tides, which is another way to evaluate SAO. As mentioned above, Earth hemispheres are equally illuminated during equinoxes, evidencing any effect due to solar activity in the tidal amplitudes.…”

“…Although the lower correlations presented in direct analysis, diurnal and semidiurnal tides showed a significant negative correlation with solar cycle activity highlighted in the semiannual variation. These anticorrelations of tidal activity and solar cycle have also been showed by several works in different latitudes and also in other seasons (Bremer et al, 1997;Greisiger et al, 1987;Guharay et al, 2019;Iimura et al, 2010;Jacobi et al, 1997;Namboothiri et al, 1993;Sprenger & Schminder, 1969;Sridharan et al, 2010). Sridharan et al (2010), using data from MF radar at Tirunelveli (8.7 N), have found negative Solar Cycle response during all the months only in meridional diurnal tide winds.…”

“…Guharay et al. (2019) investigated the solar cycle dependence of the tides in the low latitude MLT using meteor radar. Although their analysis did not show any significant relationship between the long‐term variation of the tides and solar activity, the individual seasonal profiles reveal a negative correlation of diurnal and semidiurnal tides in the equinoxes.…”

“…Some studies have been made concerning the long‐term variation of atmospheric fields related to solar activity (e.g., Clemesha et al., 2005; Dickinson, 1975; Fuller‐Rowell & Rees, 1980; Mohankumar, 1985). Focusing on tidal winds, most of these studies have tried to identify the relation between tides and solar activity (e.g., Deepa et al., 2008; Guharay et al., 2019; Iimura et al., 2010; Pancheva et al., 2003). Iimura et al.…”

Analysis of the correlation between horizontal wind and 11-year solar activity over Langfang, China

“…As for the correlation between tides and solar activity in the MLT, a negative correlation was found for the semidiurnal tide in summer and winter (Sprenger and Schminder, 1968;Greisiger et al, 1987;Namboothiri et al, 1993;Guharay et al, 2019), except for Keuer who reported no obvious correlation (Keuer et al, 2007). So far, few studies have been conducted on the correlations between diurnal tide and solar activity.…”