We have been made aware of a convincing email scam that is focusing on our Programme and Workshop participants. Participants may receive an email from a firm called Expo Hotel Services (ehotelservices.org) to arrange accommodation for workshops and/or programmes. This might include a request to provide them with credit card information.
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If you have been contacted by this company please contact us as soon as possible.
Weather forecasts are routinely computed for up to 10 days ahead, based on large quantities of wind, temperature and humidity data that are collected continuously and used to modify the computations. The data are of course insufficient to determine the exact state of the atmosphere. Since they are very expensive to obtain there is a premium on their optimal exploitation. Therefore it is of the highest importance for numerical weather prediction to identify the dominant processes and flow features that determine how the large scale weather patterns develop. By then ensuring that the continuous assimilation of data is consistent with these features the accuracy of the forecasts is greatly increased. Ocean modelling is beginning to develop similar data assimilation techniques. Recent exchanges of ideas between mathematicians and atmosphere-ocean dynamicists has brought a new geometric global viewpoint to these problems, in particular a new appreciation of how fluid-dynamical conservation laws, for example potential vorticity, connect with the symplectic geometric structure of the underlying equations of motion. A major challenge for the programme will be to bring ideas from geometry, analysis and the theory of dynamical systems to bear on the practical and urgent problems of weather forecasting, ocean and climate modelling.
Understanding atmospheric dynamics using rearrangements of functions
Authors: MJP Cullen, R Douglas
Legendre-transformable semi-geostrophic theories
Authors: RJ Purser
Rearrangements and polar factorisation of countably degenerate functions
Authors: GR Burton, RJ Douglas
Stationary vortices in three-dimensional quasi-geostrophic shear flow
Authors: GR Burton, J Nycander
A nonlinear critical layer generated by the interaction of free Rossby waves
Authors: J Vanneste
Strong echo effect and nonlinear transient growth in shear flows
Authors: J Vanneste, PJ Morrison, T Warn
|Thursday 20th January 2022|
|10:00 to 11:00||Room 1|
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