no code implementations • 2 Feb 2024 • Maxime Beauchamp, Nicolas Desassis, J. Emmanuel Johnson, Simon Benaichouche, Pierre Tandeo, Ronan Fablet
Recent advances in the deep learning community also enables to adress this problem as neural architecture embedding data assimilation variational framework.
no code implementations • 12 May 2023 • Maximiliano A. Sacco, Manuel Pulido, Juan J. Ruiz, Pierre Tandeo
The performance of this approach is examined within a hybrid data assimilation method that combines a Kalman-like analysis update and the machine learning based estimation of a state-dependent forecast error covariance matrix.
no code implementations • 18 Mar 2023 • Sibo Cheng, Cesar Quilodran-Casas, Said Ouala, Alban Farchi, Che Liu, Pierre Tandeo, Ronan Fablet, Didier Lucor, Bertrand Iooss, Julien Brajard, Dunhui Xiao, Tijana Janjic, Weiping Ding, Yike Guo, Alberto Carrassi, Marc Bocquet, Rossella Arcucci
Data Assimilation (DA) and Uncertainty quantification (UQ) are extensively used in analysing and reducing error propagation in high-dimensional spatial-temporal dynamics.
no code implementations • 16 Mar 2023 • Aurélien Colin, Pierre Tandeo, Charles Peureux, Romain Husson, Ronan Fablet
By carefully building a large dataset of SAR observations from the Copernicus Sentinel-1 mission, collocated with both GMF and atmospheric model wind speeds as well as rainfall estimates, we were able to train a wind speed estimator with reduced errors under rain.
no code implementations • 15 Jul 2022 • Aurélien Colin, Pierre Tandeo, Charles Peureux, Romain Husson, Nicolas Longépé, Ronan Fablet
SAR satellites deliver very high resolution observations with a global coverage.
no code implementations • 29 Nov 2021 • Maximiliano A. Sacco, Juan J. Ruiz, Manuel Pulido, Pierre Tandeo
Experiments using the Lorenz'96 model show that the ANNs are able to emulate some of the properties of ensemble forecasts like the filtering of the most unpredictable modes and a state-dependent quantification of the forecast uncertainty.
no code implementations • 26 Jan 2021 • Paul Platzer, Pascal Yiou, Philippe Naveau, Jean-François Filipot, Maxime Thiebaut, Pierre Tandeo
These findings are illustrated with numerical simulations of a well-known chaotic dynamical system and on 10m-wind reanalysis data in north-west France.
1 code implementation • 18 Oct 2019 • Gautier Cosne, Guillaume Maze, Pierre Tandeo
Understanding local currents in the North Atlantic region of the ocean is a key part of modelling heat transfer and global climate patterns.
1 code implementation • 10 Nov 2017 • Redouane Lguensat, Miao Sun, Ronan Fablet, Evan Mason, Pierre Tandeo, Ge Chen
This work presents EddyNet, a deep learning based architecture for automated eddy detection and classification from Sea Surface Height (SSH) maps provided by the Copernicus Marine and Environment Monitoring Service (CMEMS).