Observations of Atmospheric Tides at High Latitudes in the Martian Upper Atmosphere

Atmospheric tides in the Martian atmosphere are known to achieve significant amplitudes especially as they propagate to higher altitudes. Due to limited observations, most previous studies have focused on studying tides in the mid to near equatorial regions where Wavenumber-2 and Wavenumber-3 tidal signatures have been identified. Previous observations at high latitudes have revealed strong tidal signatures producing Wavenumber-3 patterns in the upper atmosphere. The same Wavenumber-3 signature was also observed down in the middle atmosphere and has been attributed to the diurnal and semidiurnal tides. Given the current data availability at high latitudes from instruments on MAVEN and MRO, here we focus on identifying dominant wave numbers and inferring vertical propagation characteristics across a broad range of altitudes from the middle to the upper atmosphere.