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WP4 - Data Assimilation — Machine Learning

We complement the model development efforts of the other WPs by providing data-constrained sea ice analyses.

To meet this goal we shall develop specific and novel data assimilation (DA) methods adapted to the new continuum version of the sea ice model neXtSIM discretised using discontinuous Galerkin method. WP4 will also use state-of-the art DA and machine learning (ML) methods not used in sea ice modeling before, and develop novel approaches for the unique computational and physical features of neXtSIM. In particular we will adopt neural networks and the new frontier of hybrid DA-ML techniques to devise data-driven parameterizations that complement and enhance physically based ones.

WP4 is a bridge between the other WPs and is structured along four tasks reflecting the diverse DA and ML challenges prompted by the other WPs, preparing neXtSIM to exploit the new and constantly growing sets of sea ice data:

  • DA strategies adapted to models using a discontinuous galerkin numerical method
  • DA for parameter estimation: sub-grid and sea ice–ocean coupling parameterizations
  • ML and hybrid DA-ML for parameterization design and parameter estimation
  • DA for feature data

People involved in WP4:

  • Alberto Carrassi (n.a.carrassi(at)reading.ac.uk) : PI
  • Ali Aydogdu (ali.aydogdu(at)cmcc.it) : Research Scientist
  • Laurent Bertino (Laurent.Bertino(at)nersc.no) : Head of Data Assimilation for Ice
  • Marc Bocquet (marc.bocquet(at)enpc.fr) : Head of Data Assimilation
  • Julien Brajard (julien.brajard(at)nersc.no) : Head of Machine Learning
  • Yumeng Chen (yumeng.chen(at)reading.ac.uk) : Research Scientist
  • Simon Driscoll (s.driscoll(at)pgr.reading.ac.uk) : PhD
  • Charlotte Durand (charlotte.durand(at)enpc.fr) : PhD
  • Alban Farchi (alban.farchi(at)enpc.fr) : Research Scientist
  • Tobias Finn (tobias.finn(at)enpc.fr) : PostDoc
  • Christopher Jones (ckrtj(at)renci.org) : Head of Applied Maths
  • Anton Korosov (Anton.Korosov(at)nersc.no) :
  • Seema Mayor (s.mayor(at)reading.ac.uk) : WP4 Manager
  • Ivo Pasmans (i.c.pasmans(at)reading.ac.uk) : PostDoc
  • Polly Smith (p.j.smith(at)reading.ac.uk) : PostDoc
  • Yue Ying (Yue.Ying(at)nersc.no) : Research Scientist
  • This project is supported by Schmidt Futures, a philanthropic initiative founded by Eric and Wendy Schmidt that bets early on exceptional people making the world better, particularly through innovative breakthroughs in science and technology. It is a project of Schmidt Futures' Virtual Earth System Research Institute (VESRI).