Colin James Grudzien
Colin James Grudzien
Data Assimilation Scientist Center for Western Weather and Water Extremes (CW3E)
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Cited by
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Degenerate Kalman filter error covariances and their convergence onto the unstable subspace
M Bocquet, KS Gurumoorthy, A Apte, A Carrassi, C Grudzien, ...
SIAM/ASA Journal on Uncertainty Quantification 5 (1), 304-333, 2017
Chaotic dynamics and the role of covariance inflation for reduced rank Kalman filters with model error
C Grudzien, A Carrassi, M Bocquet
Nonlinear Processes in Geophysics 25 (3), 633-648, 2018
Rank deficiency of Kalman error covariance matrices in linear time-varying system with deterministic evolution
KS Gurumoorthy, C Grudzien, A Apte, A Carrassi, CKRT Jones
SIAM Journal on Control and Optimization 55 (2), 741-759, 2017
Asymptotic forecast uncertainty and the unstable subspace in the presence of additive model error
C Grudzien, A Carrassi, M Bocquet
SIAM/ASA Journal on Uncertainty Quantification 6 (4), 1335-1363, 2018
Data assimilation for chaotic systems
A Carrassi, C Grudzien, M Bocquet, J Demaeyer, P Raanes, S Vannitsem
Data assimilation for atmospheric, oceanic and hydrological applications, 2021
Geometric phase in the Hopf bundle and the stability of non-linear waves
CJ Grudzien, TJ Bridges, CKRT Jones
Physica D: Nonlinear Phenomena 334, 4-18, 2016
Structure-and Physics-Preserving Reductions of Power Grid Models
C Grudzien, D Deka, M Chertkov, SN Backhaus
Multiscale Modeling & Simulation 16 (4), 1916-1947, 2018
On the numerical integration of the Lorenz-96 model, with scalar additive noise, for benchmark twin experiments
Grudzien C., Bocquet M., Carrassi A.
Geosci. Model Dev. 13, 1903–1924, 2020
The instability of the Hocking–Stewartson pulse and its geometric phase in the Hopf bundle
C Grudzien
Journal of Computational and Applied Mathematics 307, 162-169, 2016
A fast, single-iteration ensemble Kalman smoother for sequential data assimilation
C Grudzien, M Bocquet
Geoscientific Model Development Discussions, 1-62, 2021
A Tutorial on Bayesian Data Assimilation
C Grudzien, M Bocquet
arXiv preprint arXiv:2112.07704, 2021
The method of the geometric phase in the Hopf bundle as a reformulation of the Evans function for reaction diffusion equations
CJ Grudzien
The University of North Carolina at Chapel Hill, 2016
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