Mesosphere

A comparison of Fabry-Perot interferometer and meteor radar wind measurements near the polar mesopause region

Graphic image of scatterplots of hourly mean zonal and meridional wind components
Tuesday, April 6, 2021

The neutral winds in the Mesosphere and Lower Thermosphere (MLT) region have been observed at King Sejong Station, Antarctica using a meteor radar and a Fabry-Perot interferometer (FPI) simultaneously.

Ultra-Fast Kelvin Wave (UFKW) Variations in the Surface Magnetic Field

Graphic image of magnetic perturbation
Thursday, March 25, 2021

Kelvin waves are large scale wave that is important for Earth’s atmosphere. The Ultra-Fast Kelvin waves (UFKW) are a subset of the Kelvin waves that can propagate to the mesosphere and lower thermosphere (MLT) ~100km and above due to their high zonal phase speeds.

Day-to-Day Variability of Diurnal Tide in the Mesosphere and Lower Thermosphere Driven From Below

Graphic depicting migrating diurnal tidal amplitudes
Wednesday, December 16, 2020

The migrating diurnal tide (DW1) is one of the dominant wave motions in the mesosphere and lower thermosphere. It plays a crucial role in neutral atmosphere and ionosphere coupling. The DW1 can vary over a range of time scales from days to years.

Preliminary Evidence of Madden-Julian Oscillation Effects on Ultra-Fast Tropical Waves in the Thermosphere

Graphic image of altitude (50-260 km) versus MJO phase depiction
Wednesday, June 10, 2020

Over the past two decades mounting evidence demonstrated that terrestrial weather significantly influences the dynamics and mean state of the thermosphere.

Jack Wang

Jack is a visiting graduate student in the High Altitude Observatory at the National Central of Atmospheric Research. His research concentrates on the dynamics in the mesosphere, thermosphere, and ionosphere.

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