News - Norwegian Center for Data Assimilation

2026

21st international EnKF workshop (2026)

workshops

Rosendal, June 15 - 18

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2025

New book: Ensemble History Matching: Conditioning Reservoir Models on Dynamic Data

November 26, 2025 books

Formulates the history-matching problem in a consistent framework. Presents state-of-the-art ensemble solution methods for reservoir models. Aims to deepen understanding of ensemble methods in history matching. Educational resource for graduate stu... . Invitees: Ian Grooms, Marc Bocquet, Jeffrey Anderson, Kjetil Bjørke

20th international EnKF workshop (2025)

workshops

Ullensvang, June 16 - 18 . Invitees: Ian Grooms, Marc Bocquet, Jeffrey Anderson, Kjetil Bjørke

New book: Ensemble data assimilation applied to geological reservoir models

June 5, 2025 books

Ensemble Data Assimilation Applied to Geological Reservoir Models offers an in-depth examination of ensemble-based data assimilation methods for numerical modeling of geological reservoirs. Grounded in a Bayesian framework, the book emphasizes the integrati... . Invitees: Ian Grooms, Marc Bocquet, Jeffrey Anderson, Kjetil Bjørke

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2024

Examples of analogs method in data assimilation: climate model attribution, uncertainties calibration

October 21, 2024 seminars

13:15 NERSC (Copernicus). Talk by Prof. Valerie Monbet, L’Institut de recherche mathématique de Rennes (IRMAR), University Rennes 1. . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

Thesis disputation: Coupled data assimilation for climate prediction: a focus on ocean-atmosphere coupling

October 17, 2024 seminars

9:15-12:00, room 4020 of the Bjerknes Centre. Lilian Garcia defends her PhD thesis. . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

Tuning parameters of a sea ice model using machine learning

September 24, 2024 seminars

14:00 at NERSC Copernicus lecture room. Talk by Anton Korosov (NERSC). . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

Noise informed covariance estimation

August 27, 2024 seminars

16:00 online and NORCE 3rd floor conference room. Talk by Matthias Morzfeld of Scripps (UCSD). . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

Cross-validation in an iterative ensemble smoother: Stopping earlier for better

June 4, 2024 seminars

14:00 at NERSC Copernicus lecture room. Talk by Xiaodong Luo (NORCE). . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

Multi-fidelity Bayesian Stacking for a realistic reservoir model

May 7, 2024 seminars

14:00 at NERSC Copernicus lecture room. Talk by Kristian Fossum (NORCE). . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

19th international EnKF workshop (2024)

workshops

Os, June 17 - 19 . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

High-Precision Geosteering via Reinforcement Learning and Particle Filters

April 16, 2024 seminars

14:00 at NERSC Copernicus lecture room. Talk by Ressi Bonti Muhammad (UiS). . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

Introducing NEDAS: the next-generation ensemble DA system

April 11, 2024 seminars

14:00 at NERSC Copernicus lecture room. Talk by Yue (Michael) Ying (NERSC). . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

Graph informed linear-triangular transport

March 5, 2024 seminars

14:00 at NERSC Copernicus lecture room. Talk by Berent Lunde (Equinor). . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

Ensemble History-Matching Workflow Using Interpretable Spade-Gan Geomodel

February 6, 2024 seminars

14:00 at NERSC Copernicus lecture room. Talk by Kristian Fossum (NORCE). . Invitees: Alban Farchi, Tijana Janjic, Chris Snyder, Julien Brajard, Berent Å. S. Lunde

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2023

Ensemble optimisation in Jupyter

November 13, 2023 seminars

14:00 at NERSC Copernicus lecture room. Talk by Patrick N. Raanes (NORCE). . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

ISDA conference 2023 Permalink

conferences

International Symposium on Data Assimilation, Bologna (Italy) October 16-20. . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

Iterative ensemble smoothers for data assimilation in coupled nonlinear multiscale models

October 3, 2023 seminars

14:00 at NERSC Copernicus lecture room. Talk by Geir Evensen (NORCE). . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

Enhancing seasonal forecast skills by optimally weighting the ensemble from fresh data

September 5, 2023 seminars

14:00 at NERSC Copernicus lecture room. Talk by Julien Brajard (NERSC). . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

Summer school (2023): data assimilation Permalink

summer-schools

On data assimilation and its applications in oceanography, hydrology, risk & safety and reservoir engineering . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

Exploring the Links Between Machine Learning Emulators and Data Assimilation in Weather Forecasting

May 16, 2023 seminars

14:00 at NERSC Copernicus lecture room. Talk by Julien Brajard (NERSC). . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

18th international EnKF workshop (2023)

workshops

Norheimsund, May 2 - 5 . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

Data assimilation to build supermodel

April 18, 2023 seminars

2pm at NERSC (Copernicus). Talk by Francois Counillon (NERSC). . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

Multiscale Model Diagnostic

February 21, 2023 seminars

2pm in Nansen (Copernicus meeting room). Talk by Trond Mannseth (NORCE). . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

An ensemble approach to study association between metastasis and high interstitial fluid pressure in pancreatic cancer

January 24, 2023 seminars

14:00 at NERSC Copernicus lecture room. Talk by Geir Nævdal (NORCE). . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

Correlation-Based Localization

January 24, 2023 seminars

2pm at NERSC (Copernicus). Talk by Geir Evensen (NORCE). . Invitees: Ricardo Baptista, Feda Curic, Geir Evensen, Xiao-Hui Wu

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2022

Explores using the coupled data assimilation in Arctic climate study: the case of sea ice thickness

December 1, 2022 seminars

2pm at Nansen (Copernicus, 1st floor). Talk by Jiping Xie (NERSC). . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Verification of a real-time ensemble-based method for updating earth model based on GAN

November 17, 2022 seminars

2:30pm at Nansen (Copernicus, 1st floor). Talk by Kristian Fossum (NORCE). . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Least-square linear regression (LLS) in ensemble methods

November 10, 2022 seminars

2pm at NORCE (building F, floor 3). Talk by Patrick N. Raanes (NORCE). . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Frameworks for parameter estimation with NorCPM

November 3, 2022 seminars

November 3, 2 PM at Nansen (Copernicus, 1st floor). Talk by Tarkeshwar Singh (NERSC). . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Exploring Machine Learning for Data Assimilation and Reanalysis at ECMWF

October 19, 2022 seminars

14:15 at NERSC Copernicus lecture room. Talk by Patrick Laloyaux (ECMWF), visitor of the CoRea project. . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Super-resolution data assimilation

October 13, 2022 seminars

2pm at Nansen (Copernicus, 1st floor). Talk by Sébastien Barthélémy (UiB) . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Ensemble DA with generic constraints

October 6, 2022 seminars

2pm at NORCE (floor 3). Talk by Xiaodong Luo (NORCE) . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Recent developments of the multiscale alignment ensemble filtering framework

September 29, 2022 seminars

3pm at Nansen (Copernicus, 1st floor). Talk by Yue (Michael) Ying (NERSC). . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Hybrid data assimilation

August 25, 2022 seminars

3pm at NORCE (building F, floor 4, end of hallway). Talk by Dean Oliver (NORCE). . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Graduate course at UiB, 2022: MAT330 Permalink

courses

University Course for BSc, MSc and PhD students Department of Mathematics – University of Bergen . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Dynamically weighted hybrid-Mean/LETKF data assimilation

July 1, 2022 seminars

NERSC (Copernicus). Talk by Helena Barbieri de Azevedo. . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

On Wind farm layout optimisation in the LOOP Wind project

June 22, 2022 seminars

At NORCE. Talk by Kjersti Solberg Eikrem. . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

17th international EnKF workshop (2022)

workshops

Balestrand, May 30 - June 02 . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

Theoretical developments with the EnKF

May 23, 2022 seminars

10:30 am at NERSC. Talk by Sophie Mauran. . Invitees: Berent Anund Stromnes Lunde, Femke Vossepoel, Matthew Levine, Yue (Michael) Ying, Yuqing Chang

New book: Data Assimilation Fundamentals