|Module Title||ATMOSPHERIC DYNAMICS|
|Co-ordinator||Dr Geraint Vaughan|
|Other staff||Dr Nicholas Mitchell, Dr James Whiteway|
|Pre-Requisite||Successful Completion of Year 3 of the MPhys Scheme|
|Course delivery||Lecture||22 lectures|
|Assessment||Exam||End of semester examinations||100%|
This course considers motion in the atmosphere from a fluid-mechanical perspective, showing how geostrophic and hydrostatic balance leads to simplification of the nonlinear basic equations. Applications are presented in the context of synoptic weather systems and fronts. Vorticity and potential vorticity are introduced as fundamental dynamical properties of the flow. Wave motion in the atmosphere is introduced within a physical framework, with application to gravity waves, tides and planetary waves.
After taking this module students should be able to:
Additional learning activities
Computer-aided learning packages for meteorology.
Videos on satellite observations of air motion.
The dynamical equations of atmospheric flow: inclusion of Coriolis acceleration.
Scale analysis: horizontal momentum equations, hydrostatic eqn.
Geostrophic and gradient wind.
The chart as a means of displaying information.
Vorticity, the vorticity equation, potential vorticity.
Applications of the conservation of potential vorticity.
General Circulation in the troposphere.
Overview of wave motion in the atmosphere: restoring forces.
Gravity waves: simple theory, asymptotic equation.
Gravity wave saturation and spectra.
Transport of momentum by gravity waves.
Simple theory of atmospheric tides.
Planetary waves: free modes (Rossby waves), forced modes.
Transport by planetary waves.
** Reference Text
J.R. Holton. (1991) An introduction to dynamical meteorology. Academic Press
A. Gordon et al. (1998) Dynamical Meteorology, A Basic Course. Arnold Invalid isbn : 034059503 : Dynamical Meteorology, A Basic Course : PH49010