Workshop on Stochastic Parameterizations and Their Use in Data Assimilation (1-5 July)
In this workshop we address the challenge of combining stochastic data-driven mathematical modelling with effective data assimilation techniques in high-dimensional operational systems. The aim of the event is to expose cutting-edge results in stochastic analysis and modelling with nonlinear filtering and data assimilation for applications in geophysical fluid dynamics. We seek to foster collaborations which could eventually bridge the gap between fundamental research in stochastic PDE analysis and data-driven operational methodologies.Scientific Committee : Colin Cotter, Dan Crisan, Darryl Holm, Wei Pan, Igor Shevchenko..Registration : please register here
Organisers : Tom Bendall, Erwin Luesink, Oana Lang.The workshop is funded by the EPSRC Standard Grant EP/N023781/1.
Timetable
Monday 1 July
10:00 to 11:00 – Tutorial with Darryl Holm, SALT: Stochastic Advection by Lie Transport
11:00 to 11:50 – Talk from Francois Gay-Balmaz, Modelling irreversible processes via variational
principles in ocean and atmosphere dynamics
11:50 to 12:10 – Coffee Break
12:10 to 13:00 – Talk from Joaquın Mıguez, Stable approximations of optimal filters
13:00 to 14:30 – Lunch
14:30 to 15:20 – Talk from Tudor Ratiu, Stochastic variational principles with advected quantities
15:20 to 16:10 – Talk from Valerio Lucarini, Stochastic Dynamics of a Bistable Climate Model
16:10 to 16:30 – Coffee Break
16:30 to 17:20 – Christian Franzke, Energetically consistent backscatter schemes for atmospheric models
Tuesday 2 July
10:00 to 11:00 – Talk from Peter Jan van Leeuwen
11:00 to 11:50 – Talk from Roland Potthast, Nonlinear Filtering and Particle Methods for
High-Dimensional Operational Data Assimilation
11:50 to 12:10 – Coffee Break
12:10 to 13:00 – Talk from Rossella Arcucci, Methods and Models for Effective Data Assimilation
13:00 to 14:30 – Lunch
14:30 to 15:20 – Talk from Peter Korn
15:20 to 16:10 – Talk from Christian Lessig, A Global Atmospheric Model combining a
Multi-Resolution, Local Spectral Simulation and a Data-Driven Neural Network
16:10 to 16:30 – Coffee Break
16:30 to 17:20 – Talk from Jochen Brocker
Wednesday 3 July
10:00 to 11:00 – Tutorial with Dan Crisan, Particle Filters: a Theoretical Perspective
11:00 to 11:50 – Talk from Bertrand Chapron
11:50 to 12:10 – Coffee Break
12:10 to 13:00 – Talk from James Maddison, Applying Bayesian inference to infer ocean diffusivity
information using Lagrangian tracer particles
13:00 to 14:30 – Lunch and Poster Session
14:30 to 17:30 – Free Time for Discussions
18:30 to 21:00 – Workshop Dinner at Ognisko
Thursday 4 July
10:00 to 11:00 – Tutorial with Igor Shevchenko, Stochastic Parametrisation and Data Assimilation
Using SALT: Part I
11:00 to 11:50 – Talk from Ibrahim Hoteit, Impact of external forcing and internal physics
perturbations on an ensemble ocean data assimilation system and a new online state-parameters
estimation approach
11:50 to 12:10 – Coffee Break
12:10 to 13:00 – Talk from Andrew Stuart, Optimize, Learn, Sample
13:00 to 14:30 – Lunch
14:30 to 15:20 – Talk from Alexandros Beskos, Geometric MCMC for infinite-dimensional inverse
problems
15:20 to 16:10 – Talk from Kody Law, Data Assimilation with Multilevel Monte Carlo
16:10 to 16:30 – Coffee Break
16:30 to 17:20 – Talk from Edriss Titi, Mathematical Analysis of Tropical Atmospheric Models with
Moisture
Friday 5 July
10:00 to 11:00 – Tutorial from Wei Pan, Stochastic Parametrisation and Data Assimilation Using
SALT: Part II
11:00 to 11:50 – Talk from James-Michael Leahy
11:50 to 12:10 – Coffee Break
12:10 to 13:00 – Talk from Etienne Memin, Stochastic modelling of large-scale geophysical flows
13:00 to 14:30 – Closing Remarks and Lunch
