Abstract:Waves of various types play an important role in the atmosphere. They can modulate convection and when they break into turbulence they play an important role in the mixing of constituents. Atmospheric waves can propagate upwards from their sources to great heights, transporting energy and momentum as they do so and thus changing the circulation of the entire planetary atmosphere. A detailed understanding of atmospheric waves is thus vital to improve numerical weather forecasting and climate models. This talk introduces atmospheric waves and describes some of the studies of waves carried out at Bath. Ground-based VHF radars in the polar and equatorial regions are used to investigate waves in the mesosphere, effectively at the edge of space. Complementary satellite observations are used to determine the sources of the waves in the lower atmosphere, to determine the waves’ fluxes of energy and momentum and to determine their impact on the stratosphere and mesosphere. The talk finishes by looking at some of the important questions to be answered in future studies.
Refreshments will be served from 4:30pm in the Staff Common Room, Floor 2, Physical Sciences Building
Event poster: http://www.iopcymru.org/events/info/file_59358.pdf