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Ashesh Chattopadhyay
Ashesh Chattopadhyay
Підтверджена електронна адреса в ucsc.edu - Домашня сторінка
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Fourcastnet: A global data-driven high-resolution weather model using adaptive fourier neural operators
J Pathak, S Subramanian, P Harrington, S Raja, A Chattopadhyay, ...
arXiv preprint arXiv:2202.11214, 2022
7172022
Physics-informed machine learning: case studies for weather and climate modelling
K Kashinath, M Mustafa, A Albert, JL Wu, C Jiang, S Esmaeilzadeh, ...
Philosophical Transactions of the Royal Society A 379 (2194), 20200093, 2021
5182021
Data-driven prediction of a multi-scale Lorenz 96 chaotic system using deep learning methods: Reservoir computing, ANN, and RNN-LSTM
A Chattopadhyay, P Hassanzadeh, D Subramanian
Nonlinear Processes in Geophysics Discussions 2020, 1-26, 2020
2602020
Analog Forecasting of Extreme‐Causing Weather Patterns Using Deep Learning
C Ashesh, N Ebrahim, H Pedram
Journal of Advances in Modeling Earth Systems 12 (2), 2020
2102020
Predicting clustered weather patterns: A test case for applications of convolutional neural networks to spatio-temporal climate data
A Chattopadhyay, P Hassanzadeh, S Pasha
Scientific reports 10 (1), 1317, 2020
1772020
Stable a posteriori LES of 2D turbulence using convolutional neural networks: Backscattering analysis and generalization to higher Re via transfer learning
Y Guan, A Chattopadhyay, A Subel, P Hassanzadeh
Journal of Computational Physics 458, 111090, 2022
1012022
Data-driven subgrid-scale modeling of forced Burgers turbulence using deep learning with generalization to higher Reynolds numbers via transfer learning
A Subel, A Chattopadhyay, Y Guan, P Hassanzadeh
Physics of Fluids 33 (3), 2021
902021
Towards physics-inspired data-driven weather forecasting: integrating data assimilation with a deep spatial-transformer-based U-NET in a case study with ERA5
A Chattopadhyay, M Mustafa, P Hassanzadeh, E Bach, K Kashinath
Geoscientific Model Development 15 (5), 2221-2237, 2022
70*2022
Data‐driven super‐parameterization using deep learning: Experimentation with multiscale Lorenz 96 systems and transfer learning
A Chattopadhyay, A Subel, P Hassanzadeh
Journal of Advances in Modeling Earth Systems 12 (11), e2020MS002084, 2020
692020
Explaining the physics of transfer learning in data-driven turbulence modeling
A Subel, Y Guan, A Chattopadhyay, P Hassanzadeh
PNAS nexus 2 (3), pgad015, 2023
562023
Learning physics-constrained subgrid-scale closures in the small-data regime for stable and accurate LES
Y Guan, A Subel, A Chattopadhyay, P Hassanzadeh
Physica D: Nonlinear Phenomena 443, 133568, 2023
542023
Deep spatial transformers for autoregressive data-driven forecasting of geophysical turbulence
KK Ashesh Chattopadhyay, Mustafa Mustafa, Pedram Hassanzadeh
EarthArxiv, 2020
33*2020
Long-term instabilities of deep learning-based digital twins of the climate system: The cause and a solution
A Chattopadhyay, P Hassanzadeh
arXiv preprint arXiv:2304.07029, 2023
272023
Deep learning-enhanced ensemble-based data assimilation for high-dimensional nonlinear dynamical systems
A Chattopadhyay, E Nabizadeh, E Bach, P Hassanzadeh
Journal of Computational Physics 477, 111918, 2023
262023
Transfer learning of deep neural networks for predicting thermoacoustic instabilities in combustion systems
S Mondal, A Chattopadhyay, A Mukhopadhyay, A Ray
Energy and AI 5, 100085, 2021
252021
Discovery of interpretable structural model errors by combining Bayesian sparse regression and data assimilation: A chaotic Kuramoto–Sivashinsky test case
R Mojgani, A Chattopadhyay, P Hassanzadeh
Chaos: An Interdisciplinary Journal of Nonlinear Science 32 (6), 2022
21*2022
Learning closed‐form equations for subgrid‐scale closures from high‐fidelity data: Promises and challenges
K Jakhar, Y Guan, R Mojgani, A Chattopadhyay, P Hassanzadeh
Journal of Advances in Modeling Earth Systems 16 (7), e2023MS003874, 2024
182024
Lucie: A lightweight uncoupled climate emulator with long-term stability and physical consistency for o (1000)-member ensembles
H Guan, T Arcomano, A Chattopadhyay, R Maulik
arXiv preprint arXiv:2405.16297, 2024
152024
OceanNet: A principled neural operator-based digital twin for regional oceans
A Chattopadhyay, M Gray, T Wu, AB Lowe, R He
Scientific Reports 14 (1), 21181, 2024
132024
Spline based shape prediction and analysis of uniformly rotating sessile and pendant droplets
K Jakhar, A Chattopadhyay, A Thakur, R Raj
Langmuir 33 (22), 5603-5612, 2017
112017
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