Google Scholar profile
Underlined denotes members of our group

Selected Publications

  1. Missing the butterfly and predicting the past: Features or bugs of accurate AI weather models?
    Pedram Hassanzadeh, Weidong Li, Y. Qiang Sun, Jiangdi Wang, Alexander Wikner, Justin Finkel, and Jonathan Q Weare
  1. Analytical and AI-discovered stable, accurate, and generalizable subgrid-scale closure for geophysical turbulence
    Karan Jakhar, Yifei Guan, and Pedram Hassanzadeh
    Physical Review Letters
  2. Can AI weather models predict out-of-distribution gray swan tropical cyclones?
    Y. Qiang Sun, Pedram Hassanzadeh, Mohsen Zand, Ashesh Chattopadhyay, Jonathan Weare, and Dorian S. Abbot
    Proceedings of the National Academy of Sciences
  3. Explaining the physics of transfer learning in data-driven turbulence modeling
    Adam Subel, Yifei Guan, Ashesh Chattopadhyay, and Pedram Hassanzadeh
    PNAS Nexus
  4. FourCastNet: A global data-driven high-resolution weather model using adaptive Fourier neural operators
    Jaideep Pathak, Shashank Subramanian, Peter Harrington, Sanjeev Raja, Ashesh Chattopadhyay, Morteza Mardani, Thorsten Kurth, David Hall, Zongyi Li, Kamyar Azizzadenesheli, Pedram Hassanzadeh, Karthik Kashinath, and Animashree Anandkumar
    (not peer-reviewed)

Submitted

  1. Missing the butterfly and predicting the past: Features or bugs of accurate AI weather models?
    Pedram Hassanzadeh, Weidong Li, Y. Qiang Sun, Jiangdi Wang, Alexander Wikner, Justin Finkel, and Jonathan Q Weare
  2. Decision-oriented benchmarking to transform AI weather forecast access: Application to the Indian monsoon
    Rajat Masiwal, Colin Aitken, Adam Marchakitus, Mayank Gupta, Katherine Kowal, Hamid A. Pahlavan, Tyler Yang, Y. Qiang Sun, Michael Kremer, Amir Jina, William R. Boos, and Pedram Hassanzadeh
  3. Designing probabilistic AI monsoon forecasts to inform agricultural decision-making
    Colin Aitken, Rajat Masiwal, Adam Marchakitus, Katherine Kowal, Mayank Gupta, Tyler Yang, Amir Jina, Pedram Hassanzadeh, William R Boos, and Michael Kremer
  4. Eigenanalysis framework for autoregressive neural emulators of multi-scale chaotic dynamics
    Conrad Ainslie, Pedram Hassanzadeh, Michael W Mahoney, and Ashesh Chattopadhyay
  5. Challenges of learning multi-scale dynamics with AI weather models: Implications for stability and one solution
    Ashesh Chattopadhyay, Y. Qiang Sun, and Pedram Hassanzadeh
  6. Rigorous uncertainty quantification of probabilistic AI weather forecasts with conformal prediction
    Anna Asch, Raphael Rossellini, Pedram Hassanzadeh, and Rebecca Willett
  7. Deep learning the sources of MJO predictability: A spectral view of learned features
    Lin Yao, Da Yang, James P. C. Duncan, Ashesh Chattopadhyay, Pedram Hassanzadeh, Wahid Bhimji, and Bin Yu
  8. Reframing generative models for physical systems using stochastic interpolants
    Anthony Zhou, Alexander Wikner, Amaury Lancelin, Pedram Hassanzadeh, and Amir Barati Farimani
  9. SamudraBGC: Machine learning emulation of regional mesoscale ocean biogeochemistry
    Maxime Keutgen De Greef, Laure Resplandy, Bianca Champenois, Mathieu Poupon, Weidong Li, Pedram Hassanzadeh, and Laure Zanna

2026

  1. Analytical and AI-discovered stable, accurate, and generalizable subgrid-scale closure for geophysical turbulence
    Karan Jakhar, Yifei Guan, and Pedram Hassanzadeh
    Physical Review Letters
  2. Predicting regional gray swans via translocation: AI weather models and Dubai’s unprecedented 2024 rainfal
    Y. Qiang Sun, Pedram Hassanzadeh, Tiffany Shaw, Hamid A. Pahlavan, and Adam Marchakitus
    in press at Science Advances
  3. AI-boosted rare event sampling to characterize extreme weather
    Amaury Lancelin*, Alexander Wikner*, Laurent Dubus, Clément Le Priol, Dorian S Abbot, Freddy Bouchet, Pedram Hassanzadeh, and Jonathan Weare
    Physical Review Letters
  4. Hierarchical implicit neural emulators
    Ruoxi Jiang, Xiao Zhang, Karan Jakhar, Peter Y Lu, Pedram Hassanzadeh, Michael Maire, and Rebecca Willett
    Advances in Neural Information Processing Systems
  5. Online learning of eddy-viscosity and backscattering closures for geophysical turbulence using ensemble Kalman inversion
    Yifei Guan, Pedram Hassanzadeh, Tapio Schneider, Oliver Dunbar, Daniel Zhengyu Huang, Jinlong Wu, and Ignacio Lopez-Gomez
    Physical Review Research
  6. Benchmarking Regional Thermodynamic Trends in an AI emulator, ACE2, and a hybrid model, NeuralGCM
    Katharine Rucker, Ian Baxter, Pedram Hassanzadeh, Tiffany A. Shaw, and Hamid A. Pahlavan
    Geophysical Research Letters
  7. Semi-analytical eddy-viscosity and backscattering closures for 2D geophysical turbulence
    Yifei Guan and Pedram Hassanzadeh
    in press at Journal of Fluid Mechanics
  8. Benchmarking atmospheric circulation variability in an AI emulator, ACE2, and a hybrid model, NeuralGCM
    Ian Baxter, Hamid Pahlavan, Pedram Hassanzadeh, Katharine Rucker, and Tiffany Shaw
    Geophysical Research Letters
  9. Fourier analysis of the physics of transfer learning for data-driven subgrid-scale models of ocean turbulence
    Moein Darman, Pedram Hassanzadeh, Laure Zanna, and Ashesh Chattopadhyay
    Machine Learning: Earth
  10. Prediction of extreme events in multiscale simulations of geophysical turbulence using reinforcement learning
    Yifei Guan, Lucas Amoudruz, Sergey Litvinov, Karan Jakhar, Rambod Mojgani, Petros Koumoutsakos, and Pedram Hassanzadeh
    in press at Journal of Computational Science
  11. Testing the limits of surface QG theory with deep learning
    Wenyu Shan, Dhruvit Patel, Y. Qiang Sun, Pedram Hassanzadeh, Eli Tziperman, and Dorian S Abbot
    Journal of Geophysical Research: Machine Learning and Computation
  12. The June 2024 middle east compound heatwave: Dynamical drivers and AI-weather forecast models’ evaluation
    Narendra Nelli, Diana Francis, Ricardo Fonseca, Pedram Hassanzadeh, and Charfeddine Cherif
    Atmospheric Research

2025

  1. Can AI weather models predict out-of-distribution gray swan tropical cyclones?
    Y. Qiang Sun, Pedram Hassanzadeh, Mohsen Zand, Ashesh Chattopadhyay, Jonathan Weare, and Dorian S. Abbot
    Proceedings of the National Academy of Sciences
  2. Forecasting the unseen
    Y. Qiang Sun, Pedram Hassanzadeh, Jonathan Weare, and Dorian S. Abbot
    SIAM News (invited, not peer reviewed)
  3. Machine learning for climate physics and simulations
    Ching-Yao Lai, Pedram Hassanzadeh, Aditi Sheshadri, Maike Sonnewald, Raffaele Ferrari, and Venkatramani Balaji
    Annual Review of Condensed Matter Physics
  4. Machine learning for the physics of climate
    Annalisa Bracco, Julien Brajard, Henk A. Dijkstra, Pedram Hassanzadeh, Christian Lessig, and Claire Monteleoni
    Nature Reviews Physics
  5. On the importance of learning non‐local dynamics for stable data‐driven climate modeling: A 1D gravity wave‐QBO testbed
    Hamid A. Pahlavan, Pedram Hassanzadeh, and M. Joan Alexander
    Geophysical Research Letters
  6. Propagation and Periodicity of Mars’s Northern Annular Mode Modulates the Dust Cycle
    J. Michael Battalio, Juan M. Lora, Sandro W. Lubis, and Pedram Hassanzadeh
    Geophysical Research Letters

2024

  1. Learning Closed‐Form Equations for Subgrid‐Scale Closures From High‐Fidelity Data: Promises and Challenges
    Karan Jakhar, Yifei Guan, Rambod Mojgani, Ashesh Chattopadhyay, and Pedram Hassanzadeh
    Journal of Advances in Modeling Earth Systems
  2. Explainable offline‐online training of neural networks for parameterizations: A 1D gravity wave‐QBO testbed in the small‐data regime
    Hamid A. Pahlavan, Pedram Hassanzadeh, and M. Joan Alexander
    Geophysical Research Letters
  3. Interpretable structural model error discovery from sparse assimilation increments using spectral bias‐reduced neural networks: A quasi‐geostrophic turbulence test case
    Rambod Mojgani, Ashesh Chattopadhyay, and Pedram Hassanzadeh
    Journal of Advances in Modeling Earth Systems
  4. Data imbalance, uncertainty quantification, and transfer learning in data‐driven parameterizations: Lessons from the emulation of gravity wave momentum transport in WACCM
    Y. Qiang Sun, Hamid A. Pahlavan, Ashesh Chattopadhyay, Pedram Hassanzadeh, Sandro W. Lubis, M. Joan Alexander, Edwin P. Gerber, Aditi Sheshadri, and Yifei Guan
    Journal of Advances in Modeling Earth Systems
  5. Recreating observed convection‐generated gravity waves from weather radar observations via a neural network and a dynamical atmospheric model
    C. G. Kruse, M. J. Alexander, M. Bramberger, A. Chattopadhyay, P. Hassanzadeh, B. Green, A. Grimsdell, and L. Hoffmann
    Journal of Advances in Modeling Earth Systems
  6. Volatile atmospheres of lava worlds
    M. Maurice, R. Dasgupta, and P. Hassanzadeh
    Astronomy & Astrophysics

2023

  1. Explaining the physics of transfer learning in data-driven turbulence modeling
    Adam Subel, Yifei Guan, Ashesh Chattopadhyay, and Pedram Hassanzadeh
    PNAS Nexus
  2. The Intrinsic 150‐Day Periodicity of the Southern Hemisphere Extratropical Large‐Scale Atmospheric Circulation
    Sandro W. Lubis and Pedram Hassanzadeh
    AGU Advances
  3. Kolmogorov n–width and Lagrangian physics-informed neural networks: A causality-conforming manifold for convection-dominated PDEs
    Rambod Mojgani, Maciej Balajewicz, and Pedram Hassanzadeh
    Computer Methods in Applied Mechanics and Engineering
  4. Learning physics-constrained subgrid-scale closures in the small-data regime for stable and accurate LES
    Yifei Guan, Adam Subel, Ashesh Chattopadhyay, and Pedram Hassanzadeh
    Physica D: Nonlinear Phenomena
  5. Quantifying 3D gravity wave drag in a library of tropical convection‐permitting simulations for data‐driven parameterizations
    Y. Qiang Sun, Pedram Hassanzadeh, M. Joan Alexander, and Christopher G. Kruse
    Journal of Advances in Modeling Earth Systems
  6. Long-term stability and generalization of observationally-constrained stochastic data-driven models for geophysical turbulence
    Ashesh Chattopadhyay, Jaideep Pathak, Ebrahim Nabizadeh, Wahid Bhimji, and Pedram Hassanzadeh
    Environmental Data Science
  7. Deep learning-enhanced ensemble-based data assimilation for high-dimensional nonlinear dynamical systems
    Ashesh Chattopadhyay, Ebrahim Nabizadeh, Eviatar Bach, and Pedram Hassanzadeh
    Journal of Computational Physics
  8. Using neural networks to learn the jet stream forced response from natural variability
    Charlotte Connolly, Elizabeth A. Barnes, Pedram Hassanzadeh, and Mike Pritchard
    Artificial Intelligence for the Earth Systems

2022

  1. FourCastNet: A global data-driven high-resolution weather model using adaptive Fourier neural operators
    Jaideep Pathak, Shashank Subramanian, Peter Harrington, Sanjeev Raja, Ashesh Chattopadhyay, Morteza Mardani, Thorsten Kurth, David Hall, Zongyi Li, Kamyar Azizzadenesheli, Pedram Hassanzadeh, Karthik Kashinath, and Animashree Anandkumar
    (not peer-reviewed)
  2. Stable a posteriori LES of 2D turbulence using convolutional neural networks: Backscattering analysis and generalization to higher Re via transfer learning
    Yifei Guan, Ashesh Chattopadhyay, Adam Subel, and Pedram Hassanzadeh
    Journal of Computational Physics
  3. Towards physics-inspired data-driven weather forecasting: integrating data assimilation with a deep spatial-transformer-based U-NET in a case study with ERA5
    Ashesh Chattopadhyay, Mustafa Mustafa, Pedram Hassanzadeh, Eviatar Bach, and Karthik Kashinath
    Geoscientific Model Development
  4. Discovery of interpretable structural model errors by combining Bayesian sparse regression and data assimilation: A chaotic Kuramoto–Sivashinsky test case
    Rambod Mojgani, Ashesh Chattopadhyay, and Pedram Hassanzadeh
    Chaos: An Interdisciplinary Journal of Nonlinear Science
  5. The Summertime Pacific‐North American Weather Regimes and Their Predictability
    Ebrahim Nabizadeh, Sandro W. Lubis, and Pedram Hassanzadeh
    Geophysical Research Letters

2021

  1. Physics-informed machine learning: case studies for weather and climate modelling
    K. Kashinath, M. Mustafa, A. Albert, J-L. Wu, C. Jiang, S. Esmaeilzadeh, K. Azizzadenesheli, R. Wang, A. Chattopadhyay, A. Singh, A. Manepalli, D. Chirila, R. Yu, R. Walters, B. White, H. Xiao, H. A. Tchelepi, P. Marcus, A. Anandkumar, P. Hassanzadeh, and Prabhat
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  2. An eddy–zonal flow feedback model for propagating annular modes
    Sandro W. Lubis and Pedram Hassanzadeh
    Journal of the Atmospheric Sciences
  3. Data-driven subgrid-scale modeling of forced Burgers turbulence using deep learning with generalization to higher Reynolds numbers via transfer learning
    Adam Subel, Ashesh Chattopadhyay, Yifei Guan, and Pedram Hassanzadeh
    Physics of Fluids
  4. The 3D Structure of Northern Hemisphere Blocking Events: Climatology, Role of Moisture, and Response to Climate Change
    Ebrahim Nabizadeh, Sandro W. Lubis, and Pedram Hassanzadeh
    Journal of Climate
  5. A data-driven, physics-informed framework for forecasting the spatiotemporal evolution of chaotic dynamics with nonlinearities modeled as exogenous forcings
    M.A. Khodkar and Pedram Hassanzadeh
    Journal of Computational Physics
  6. Eddy Length Scale Response to Static Stability Change in an Idealized Dry Atmosphere: A Linear Response Function Approach
    Pak Wah Chan, Pedram Hassanzadeh, and Zhiming Kuang
    Journal of the Atmospheric Sciences

2020

  1. Analog forecasting of extreme-causing weather patterns using deep learning
    Ashesh Chattopadhyay, Ebrahim Nabizadeh, and Pedram Hassanzadeh
    Journal of Advances in Modeling Earth Systems
  2. Effects of climate change on the movement of future landfalling Texas tropical cyclones
    Pedram Hassanzadeh, Chia-Ying Lee, Ebrahim Nabizadeh, Suzana J. Camargo, Ding Ma, and Laurence Y. Yeung
    Nature Communications
  3. Data-driven predictions of a multiscale Lorenz 96 chaotic system using machine-learning methods: reservoir computing, artificial neural network, and long short-term memory network
    Ashesh Chattopadhyay, Pedram Hassanzadeh, and Devika Subramanian
    Nonlinear Processes in Geophysics
  4. Data‐Driven super‐parameterization using deep learning: Experimentation with multiscale Lorenz 96 systems and transfer learning
    Ashesh Chattopadhyay, Adam Subel, and Pedram Hassanzadeh
    Journal of Advances in Modeling Earth Systems
  5. Predicting clustered weather patterns: A test case for applications of convolutional neural networks to spatio-temporal climate data
    Ashesh Chattopadhyay, Pedram Hassanzadeh, and Saba Pasha
    Scientific Reports
  6. Hurricane risk assessment of petroleum infrastructure in a changing climate
    Majid Ebad Sichani, Katherine A. Anarde, Kendall M. Capshaw, Jamie E. Padgett, Rachel A. Meidl, Pedram Hassanzadeh, Ted P. Loch-Temzelides, and Philip B. Bedient
    Frontiers in Built Environment

2019

  1. Size of the atmospheric blocking events: Scaling law and response to climate change
    Ebrahim Nabizadeh, Pedram Hassanzadeh, Da Yang, and Elizabeth A. Barnes
    Geophysical Research Letters
  2. Quantifying the annular mode dynamics in an idealized atmosphere
    Pedram Hassanzadeh and Zhiming Kuang
    Journal of the Atmospheric Sciences
  3. Reduced-order modeling of fully turbulent buoyancy-driven flows using the Green’s function method
    M. A. Khodkar, Pedram Hassanzadeh, Saleh Nabi, and Piyush Grover
    Physical Review Fluids
  4. Evaluating indices of blocking anticyclones in terms of their linear relations with surface hot extremes
    Pak‐Wah Chan, Pedram Hassanzadeh, and Zhiming Kuang
    Geophysical Research Letters
  5. A hierarchical classification of adolescent idiopathic scoliosis: Identifying the distinguishing features in 3D spinal deformities
    Saba Pasha, Pedram Hassanzadeh, Malcolm Ecker, and Victor Ho
    PLOS ONE

2018

  1. Data-driven reduced modelling of turbulent Rayleigh–Bénard convection using DMD-enhanced fluctuation–dissipation theorem
    M. A. Khodkar and Pedram Hassanzadeh
    Journal of Fluid Mechanics
  2. A Barotropic Mechanism for the Response of Jet Stream Variability to Arctic Amplification and Sea Ice Loss
    Bryn Ronalds, Elizabeth Barnes, and Pedram Hassanzadeh
    Journal of Climate

2017

  1. A perspective on climate model hierarchies
    Nadir Jeevanjee, Pedram Hassanzadeh, Spencer Hill, and Aditi Sheshadri
    Journal of Advances in Modeling Earth Systems
  2. Quantifying the eddy–jet feedback strength of the annular mode in an idealized GCM and rreanalysis data
    Ding Ma, Pedram Hassanzadeh, and Zhiming Kuang
    Journal of the Atmospheric Sciences
  3. Persistent anomalies of the extratropical Northern Hemisphere wintertime circulation as an initiator of El Niño/Southern Oscillation events
    Bruce T. Anderson, Pedram Hassanzadeh, and Rodrigo Caballero
    Scientific Reports
  4. Stability of three-dimensional Gaussian vortices in an unbounded, rotating, vertically stratified, Boussinesq flow: linear analysis
    Mani Mahdinia, Pedram Hassanzadeh, Philip S. Marcus, and Chung-Hsiang Jiang
    Journal of Fluid Mechanics

2016

  1. The Linear response function of an idealized atmosphere. Part I: Construction using Green’s functions and Applications
    Pedram Hassanzadeh and Zhiming Kuang
    Journal of the Atmospheric Sciences
  2. The Linear response function of an idealized atmosphere. Part II: Implications for the practical use of the Fluctuation–Dissipation Theorem and the role of operator’s nonnormality
    Pedram Hassanzadeh and Zhiming Kuang
    Journal of the Atmospheric Sciences

2015

  1. Blocking variability: Arctic Amplification versus Arctic Oscillation
    Pedram Hassanzadeh and Zhiming Kuang
    Geophysical Research Letters
  2. Zombie vortex instability. I. A purely hydrodynamic instability to resurrect the dead zones of protoplanetary disks
    Philip S. Marcus, Suyang Pei, Chung-Hsiang Jiang, Joseph A. Barranco, Pedram Hassanzadeh, and Daniel Lecoanet
    The Astrophysical Journal

2014

  1. Responses of midlatitude blocks and wave amplitude to changes in the meridional temperature gradient in an idealized dry GCM
    Pedram Hassanzadeh, Zhiming Kuang, and Brian F. Farrell
    Geophysical Research Letters
  2. Wall to wall optimal transport
    Pedram Hassanzadeh, Gregory P. Chini, and Charles R. Doering
    Journal of Fluid Mechanics

2013

  1. Three-dimensional vortices generated by self-replication in stably stratified rotating shear flows
    Philip S. Marcus, Suyang Pei, Chung-Hsiang Jiang, and Pedram Hassanzadeh
    Physical Review Letters

2012

  1. The universal aspect ratio of vortices in rotating stratified flows: theory and simulation
    Pedram Hassanzadeh, Philip S. Marcus, and Patrice Le Gal
    Journal of Fluid Mechanics

2009

  1. The efficient iterative solution of the P1 equation
    P. Hassanzadeh and G. D. Raithby
    Journal of Heat Transfer

2008

  1. Efficient calculation of radiation heat transfer in participating media
    P. Hassanzadeh, G. D. Raithby, and E. H. Chui
    Journal of Thermophysics and Heat Transfer
  2. Finite-Volume solution of the second-order radiative transfer equation: Accuracy and solution cost
    P. Hassanzadeh and G. D. Raithby
    Numerical Heat Transfer, Part B: Fundamentals