Nonlinear Geophysics



Advances in Computational Analysis in Geophysical Processes: Applied Math Perspectives on Multiscale and Stochastic Models
Primary Convener:  Nan Chen, University of Wisconsin Madison, Madison, WI, United States
Conveners:  Reza Malek-Madani, US Naval Academy, Annapolis, MD, United States, Boualem Khouider, University of Victoria, Mathematics and Statistics, Victoria, BC, Canada and Samuel N Stechmann, University of Wisconsin Madison, Madison, WI, United States
Primary Liaison:  Nan Chen, University of Wisconsin Madison, Madison, WI, United States


Advances in Computational Analysis in Geophysical Processes: Applied Mathematics Perspectives on Prediction, Uncertainty Quantification, and State Estimation
Primary Convener:  Di Qi, Purdue University, West Lafayette, NY, United States
Conveners:  Reza Malek-Madani, US Naval Academy, Annapolis, MD, United States, Eriic Vanden-Eijnden, Courant Institute of Mathematical Sciences, New York, United States and Dimitrios Giannakis, Courant Institute of Mathematical Sciences, NEW YORK, NY, United States
Primary Liaison:  Di Qi, Purdue University, West Lafayette, NY, United States


Advances in Data Assimilation, Predictability and Uncertainty Quantification
Primary Convener:  Steven J Fletcher, Colorado State University, Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States
Conveners:  Brian C Ancell, Texas Tech Univ-Geosciences, Lubbock, TX, United States, Matthias Morzfeld, Lawrence Berkeley National Lab, Oakland, CA, United States and Derek J Posselt, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
Primary Liaison:  Steven J Fletcher, Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States


Advances in Rock Fracture Detection, Analysis, and Modelling from the Laboratory to the Regional Scale
Primary Convener:  Christopher Cramer Barton, Wright State University, Earth and Environmental Sciences, Dayton, OH, United States
Conveners:  Laura J Pyrak-Nolte, Purdue University, Department of Physics and Astronomy; Department of Earth, Atomospheric and Planetary Sciences; Lyles School of Civil Engineering, West Lafayette, IN, United States, Hongkyu Yoon, Sandia National Laboratories, Department of Geomechanics, Albuquerque, NM, United States and Lawrence M Cathles, Cornell Univ, Ithaca, NY, United States
Primary Liaison:  Christopher Barton, Wright State University Main Campus, Dayton, United States


Assessment of Probabilistic Boltzmann distribution in Joint Hybrid Global Inversion for 1D Magnetotelluric and DC resistivity data.
Primary Convener:  Kuldeep Sarkar, Indian Institute of Technology Dhanbad, Dhanbad, India
Convener:  Upendra K. Singh, Indian School of Mines, Dhanbad, India
Primary Liaison:  Kuldeep Sarkar, Indian Institute of Technology Dhanbad, Dhanbad, India


Climate Variability Across Scales and Climate States
Primary Convener:  Raphaël Hébert, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany
Conveners:  Heather Andres, Memorial University of Newfoundland, St John's, NL, Canada, Mathieu Casado, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France and Shaun Lovejoy, McGill Univ, Montreal, QC, Canada
Primary Liaison:  Raphaël Hébert, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany


Earth System Dynamic Intelligence across emerging Mathematical Geophysics and Information Technologies
Primary Convener:  Rui A.P. Perdigão, Meteoceanics Institute for Complex System Science, Vienna, Austria; Universidade de Lisboa, CE3C, Lisboa, Portugal
Conveners:  Julia Hall, Meteoceanics Institute for Complex System Science, GeoSys Department, Lisbon, Portugal and Cristina Prieto, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Duebendorf, Switzerland; IHCantabria, Santander, Spain
Primary Liaison:  Rui A.P. Perdigão, Meteoceanics Institute for Complex System Science, Vienna, Austria; Universidade de Lisboa, CE3C, Lisboa, Portugal


Geophysical Fluid Dynamics
Primary Convener:  Raffaele Marino, CNRS, Paris Cedex 16, France
Conveners:  Jan Friedrich, Ecole Normale Supérieure Lyon, Lyon, France, Duane L Rosenberg, Colorado State University, Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States and Claudia Cenedese, WHOI, Woods Hole, MA, United States
Primary Liaison:  Raffaele Marino, National Center for Atmospheric Research, Boulder, CO, United States


Joint approach of particle swarm optimization and Gibb’s sampler for improving non-linear solution
Primary Convener:  Mukesh Mukesh, Indian School of Mines, APPLIED GEOPHYSICS, Dhanbad, India
Conveners:  Kuldeep Sarkar, Indian Institute of Technology Dhanbad, Dhanbad, India and Upendra K. Singh, Indian School of Mines, Dhanbad, India
Primary Liaison:  Mukesh Mukesh, Indian School of Mines, APPLIED GEOPHYSICS, Dhanbad, India


Machine Learning for Data Assimilation Problems
Primary Convener:  Jan Saynisch Wagner, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Conveners:  Rossella Arcucci Arcucci, Imperial College London, London, SW7, United Kingdom, Massimo Bonavita, European Center for Medium-Range Weather Forecasts, Reading, United Kingdom and Joanna Staneva, Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Geesthacht, Germany
Primary Liaison:  Jan Saynisch Wagner, GFZ - Potsdam, Potsdam, Germany


Machine Learning in Space Weather
Primary Convener:  Enrico Camporeale, University of Colorado at Boulder, Boulder, United States
Conveners:  Jacob Bortnik, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Tomoko Matsuo, University of Colorado Boulder, Boulder, CO, United States and Ryan Michael McGranaghan, Atmospheric and Space Technology Research Associates (ASTRA), Louisville, CO, United States
Primary Liaison:  Enrico Camporeale, University of Colorado, Cooperative Institute for Research in Environmental Sciences, Boulder, United States


Multi-Spacecraft Observations of the Sun and its Interaction with the Heliospheric Environment
Primary Convener:  Daniele Telloni, National Institute for Astrophysics Astrophysical Observatory of Torino Via Osservatorio 20, Pino Torinese, Italy
Conveners:  Raffaella D'Amicis, National Institute for Astrophysics, Institute for Space Astrophysics and Planetology, Rome, Italy, Lingling Zhao, Center for Space Plasma and Aeronomic Research, Huntsville, AL, United States, Olga Panasenco, Advanced Heliophysics, Pasadena, CA, United States and Marco C M Velli, Earth, Planetary, and Space Sciences, University of California, Pasadena, CA, United States
Primary Liaison:  Daniele Telloni, National Institute for Astrophysics Astrophysical Observatory of Torino Via Osservatorio 20, Pino Torinese, Italy


Neural Earth System Modelling
Primary Convener:  Christopher Irrgang, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Conveners:  Niklas Boers, Potsdam Institute for Climate Impact Research, Potsdam, Germany, Christopher Kadow, DKRZ German Climate Computing Centre, Hamburg, Germany and Jan Saynisch Wagner, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Primary Liaison:  Christopher Irrgang, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Geodesy and Remote Sensing, Potsdam, Germany


Scales, Scaling, Symmetries and Complexity: from Theory to Big Data, from Urban Systems to Climate and Pandemics.
Primary Convener:  Daniel J M Schertzer, Ecole Nationale des Ponts et Chaussées, Hydrology Meteorology and Complexity, Champs-sur-Marne, France
Conveners:  Bjorn Birnir, UC Santa Barbara, Santa Barbara, CA, United States, Allen Gerhard Hunt, Wright State University Main Campus, Dayton, OH, United States, Anastasios Tsonis, University of Wisconsin Milwaukee, Milwaukee, WI, United States and Yangzi Qiu, Ecole Nationale des Ponts et Chaussées, Hydrology Meteorology and Complexity (HM&Co), Champs-sur-Marne, France
Primary Liaison:  Daniel J M Schertzer, Ecole Nationale des Ponts et Chaussées, Hydrology Meteorology and Complexity, Champs-sur-Marne, France


When We Don't Know Everything: Stochastic Approaches to Predicting and Understanding the Earth System
Primary Convener:  Paul Williams, University of Reading, Meteorology, Reading, RG6, United Kingdom
Conveners:  Cecile Penland, NOAA Earth System Research Laboratories, Physical Sciences Laboratory, Boulder, CO, United States, Aneesh Subramanian, University of Colorado Boulder, Boulder, CO, United States and Aaron Wang, CIRES, Boulder, CO, United States
Primary Liaison:  Paul Williams, University of Reading, Meteorology, Reading, RG6, United Kingdom


Advanced Methods for Systematic Evaluation and Improvement of Earth System Models
Primary Convener:  Marcus van Lier-Walqui, Columbia University, Center for Climate Systems Research, New York, NY, United States
Conveners:  Andrew Gettelman, NCAR, Boulder, CO, United States, Gregory Elsaesser, Columbia University/NASA GISS, Dept. of Applied Physics and Applied Mathematics, New York, NY, United States, Peter Martin Caldwell, Lawrence Livermore National Laboratory, Livermore, CA, United States and Po-Lun Ma, Pacific Northwest National Laboratory, Richland, WA, United States
Primary Liaison:  Marcus van Lier-Walqui, Columbia University, Center for Climate Systems Research, New York, NY, United States


Boundary Layer Processes and Turbulence
Primary Convener:  Marco Giovanni Giometto, Columbia University of New York, New York, NY, United States
Conveners:  Shane Mayor, California State University, Department of Geological and Environmental Sciences, Chico, United States, Ying Pan, Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, PA, United States and Scott Salesky, University of Oklahoma, School of Meteorology, Norman, OK, United States
Primary Liaison:  Marco Giovanni Giometto, Columbia University of New York, New York, NY, United States


Extratropical and High-latitude Storm Tracks, Circulation Dynamics, and Extreme Events in the Context of Rapidly Changing Arctic and Antarctic Climate
Primary Convener:  Xiangdong Zhang, University of Alaska Fairbanks, Fairbanks, AK, United States
Conveners:  Kent Moore, Univ Toronto, Toronto, ON, Canada and James E Overland, NOAA Seattle, Seattle, WA, United States
Primary Liaison:  Xiangdong Zhang, Univ Alaska, Fairbanks, AK, United States


Numerical coupling of atmospheric processes in current and future models: challenges and paths forward
Primary Convener:  Hui Wan, Pacific Northwest National Laboratory, Richland, WA, United States
Conveners:  Sean Patrick Santos, Columbia University, New York, NY, United States; NASA Goddard Institute for Space Studies, New York, NY, United States and Ben J Shipway, United Kingdom Met Office, Exeter, United Kingdom
Primary Liaison:  Hui Wan, Pacific Northwest National Laboratory, Richland, WA, United States


Progress in Reanalysis: Development, Evaluation, and Application
Primary Convener:  Jan Dominik Keller, Deutscher Wetterdienst, Offenbach, Germany; Hans-Ertel-Centre for Weather Research, Climate Monitoring and Diagnostics, Bonn, Germany
Conveners:  Michael G Bosilovich, Earth Sciences Division, Greenbelt, MD, United States and Masatomo Fujiwara, Hokkaido Univ, Sapporo, Japan
Primary Liaison:  Jan Dominik Keller, Deutscher Wetterdienst, Offenbach, Germany; Hans-Ertel-Centre for Weather Research, Climate Monitoring and Diagnostics, Bonn, Germany